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-rw-r--r--fs/ext4/balloc.c35
-rw-r--r--fs/ext4/block_validity.c4
-rw-r--r--fs/ext4/dir.c14
-rw-r--r--fs/ext4/ext4.h110
-rw-r--r--fs/ext4/ext4_jbd2.c4
-rw-r--r--fs/ext4/ext4_jbd2.h24
-rw-r--r--fs/ext4/extents.c260
-rw-r--r--fs/ext4/file.c10
-rw-r--r--fs/ext4/fsync.c2
-rw-r--r--fs/ext4/ialloc.c32
-rw-r--r--fs/ext4/inode.c465
-rw-r--r--fs/ext4/ioctl.c12
-rw-r--r--fs/ext4/mballoc.c73
-rw-r--r--fs/ext4/mballoc.h9
-rw-r--r--fs/ext4/migrate.c35
-rw-r--r--fs/ext4/move_extent.c36
-rw-r--r--fs/ext4/namei.c63
-rw-r--r--fs/ext4/resize.c102
-rw-r--r--fs/ext4/super.c342
-rw-r--r--fs/ext4/xattr.c56
20 files changed, 1050 insertions, 638 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 22bc7435d913..d2f37a5516c7 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -97,8 +97,8 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
97 /* If checksum is bad mark all blocks used to prevent allocation 97 /* If checksum is bad mark all blocks used to prevent allocation
98 * essentially implementing a per-group read-only flag. */ 98 * essentially implementing a per-group read-only flag. */
99 if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) { 99 if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) {
100 ext4_error(sb, __func__, 100 ext4_error(sb, "Checksum bad for group %u",
101 "Checksum bad for group %u", block_group); 101 block_group);
102 ext4_free_blks_set(sb, gdp, 0); 102 ext4_free_blks_set(sb, gdp, 0);
103 ext4_free_inodes_set(sb, gdp, 0); 103 ext4_free_inodes_set(sb, gdp, 0);
104 ext4_itable_unused_set(sb, gdp, 0); 104 ext4_itable_unused_set(sb, gdp, 0);
@@ -130,8 +130,7 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
130 * to make sure we calculate the right free blocks 130 * to make sure we calculate the right free blocks
131 */ 131 */
132 group_blocks = ext4_blocks_count(sbi->s_es) - 132 group_blocks = ext4_blocks_count(sbi->s_es) -
133 le32_to_cpu(sbi->s_es->s_first_data_block) - 133 ext4_group_first_block_no(sb, ngroups - 1);
134 (EXT4_BLOCKS_PER_GROUP(sb) * (ngroups - 1));
135 } else { 134 } else {
136 group_blocks = EXT4_BLOCKS_PER_GROUP(sb); 135 group_blocks = EXT4_BLOCKS_PER_GROUP(sb);
137 } 136 }
@@ -189,9 +188,6 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
189 * when a file system is mounted (see ext4_fill_super). 188 * when a file system is mounted (see ext4_fill_super).
190 */ 189 */
191 190
192
193#define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1)
194
195/** 191/**
196 * ext4_get_group_desc() -- load group descriptor from disk 192 * ext4_get_group_desc() -- load group descriptor from disk
197 * @sb: super block 193 * @sb: super block
@@ -210,10 +206,8 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
210 struct ext4_sb_info *sbi = EXT4_SB(sb); 206 struct ext4_sb_info *sbi = EXT4_SB(sb);
211 207
212 if (block_group >= ngroups) { 208 if (block_group >= ngroups) {
213 ext4_error(sb, "ext4_get_group_desc", 209 ext4_error(sb, "block_group >= groups_count - block_group = %u,"
214 "block_group >= groups_count - " 210 " groups_count = %u", block_group, ngroups);
215 "block_group = %u, groups_count = %u",
216 block_group, ngroups);
217 211
218 return NULL; 212 return NULL;
219 } 213 }
@@ -221,8 +215,7 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
221 group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb); 215 group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb);
222 offset = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1); 216 offset = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1);
223 if (!sbi->s_group_desc[group_desc]) { 217 if (!sbi->s_group_desc[group_desc]) {
224 ext4_error(sb, "ext4_get_group_desc", 218 ext4_error(sb, "Group descriptor not loaded - "
225 "Group descriptor not loaded - "
226 "block_group = %u, group_desc = %u, desc = %u", 219 "block_group = %u, group_desc = %u, desc = %u",
227 block_group, group_desc, offset); 220 block_group, group_desc, offset);
228 return NULL; 221 return NULL;
@@ -282,9 +275,7 @@ static int ext4_valid_block_bitmap(struct super_block *sb,
282 return 1; 275 return 1;
283 276
284err_out: 277err_out:
285 ext4_error(sb, __func__, 278 ext4_error(sb, "Invalid block bitmap - block_group = %d, block = %llu",
286 "Invalid block bitmap - "
287 "block_group = %d, block = %llu",
288 block_group, bitmap_blk); 279 block_group, bitmap_blk);
289 return 0; 280 return 0;
290} 281}
@@ -311,8 +302,7 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
311 bitmap_blk = ext4_block_bitmap(sb, desc); 302 bitmap_blk = ext4_block_bitmap(sb, desc);
312 bh = sb_getblk(sb, bitmap_blk); 303 bh = sb_getblk(sb, bitmap_blk);
313 if (unlikely(!bh)) { 304 if (unlikely(!bh)) {
314 ext4_error(sb, __func__, 305 ext4_error(sb, "Cannot read block bitmap - "
315 "Cannot read block bitmap - "
316 "block_group = %u, block_bitmap = %llu", 306 "block_group = %u, block_bitmap = %llu",
317 block_group, bitmap_blk); 307 block_group, bitmap_blk);
318 return NULL; 308 return NULL;
@@ -354,8 +344,7 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
354 set_bitmap_uptodate(bh); 344 set_bitmap_uptodate(bh);
355 if (bh_submit_read(bh) < 0) { 345 if (bh_submit_read(bh) < 0) {
356 put_bh(bh); 346 put_bh(bh);
357 ext4_error(sb, __func__, 347 ext4_error(sb, "Cannot read block bitmap - "
358 "Cannot read block bitmap - "
359 "block_group = %u, block_bitmap = %llu", 348 "block_group = %u, block_bitmap = %llu",
360 block_group, bitmap_blk); 349 block_group, bitmap_blk);
361 return NULL; 350 return NULL;
@@ -419,8 +408,7 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
419 in_range(block, ext4_inode_table(sb, desc), sbi->s_itb_per_group) || 408 in_range(block, ext4_inode_table(sb, desc), sbi->s_itb_per_group) ||
420 in_range(block + count - 1, ext4_inode_table(sb, desc), 409 in_range(block + count - 1, ext4_inode_table(sb, desc),
421 sbi->s_itb_per_group)) { 410 sbi->s_itb_per_group)) {
422 ext4_error(sb, __func__, 411 ext4_error(sb, "Adding blocks in system zones - "
423 "Adding blocks in system zones - "
424 "Block = %llu, count = %lu", 412 "Block = %llu, count = %lu",
425 block, count); 413 block, count);
426 goto error_return; 414 goto error_return;
@@ -453,8 +441,7 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
453 BUFFER_TRACE(bitmap_bh, "clear bit"); 441 BUFFER_TRACE(bitmap_bh, "clear bit");
454 if (!ext4_clear_bit_atomic(ext4_group_lock_ptr(sb, block_group), 442 if (!ext4_clear_bit_atomic(ext4_group_lock_ptr(sb, block_group),
455 bit + i, bitmap_bh->b_data)) { 443 bit + i, bitmap_bh->b_data)) {
456 ext4_error(sb, __func__, 444 ext4_error(sb, "bit already cleared for block %llu",
457 "bit already cleared for block %llu",
458 (ext4_fsblk_t)(block + i)); 445 (ext4_fsblk_t)(block + i));
459 BUFFER_TRACE(bitmap_bh, "bit already cleared"); 446 BUFFER_TRACE(bitmap_bh, "bit already cleared");
460 } else { 447 } else {
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index a60ab9aad57d..983f0e127493 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -205,14 +205,14 @@ void ext4_release_system_zone(struct super_block *sb)
205 entry = rb_entry(n, struct ext4_system_zone, node); 205 entry = rb_entry(n, struct ext4_system_zone, node);
206 kmem_cache_free(ext4_system_zone_cachep, entry); 206 kmem_cache_free(ext4_system_zone_cachep, entry);
207 if (!parent) 207 if (!parent)
208 EXT4_SB(sb)->system_blks.rb_node = NULL; 208 EXT4_SB(sb)->system_blks = RB_ROOT;
209 else if (parent->rb_left == n) 209 else if (parent->rb_left == n)
210 parent->rb_left = NULL; 210 parent->rb_left = NULL;
211 else if (parent->rb_right == n) 211 else if (parent->rb_right == n)
212 parent->rb_right = NULL; 212 parent->rb_right = NULL;
213 n = parent; 213 n = parent;
214 } 214 }
215 EXT4_SB(sb)->system_blks.rb_node = NULL; 215 EXT4_SB(sb)->system_blks = RB_ROOT;
216} 216}
217 217
218/* 218/*
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 9dc93168e262..86cb6d86a048 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -83,10 +83,12 @@ int ext4_check_dir_entry(const char *function, struct inode *dir,
83 error_msg = "inode out of bounds"; 83 error_msg = "inode out of bounds";
84 84
85 if (error_msg != NULL) 85 if (error_msg != NULL)
86 ext4_error(dir->i_sb, function, 86 __ext4_error(dir->i_sb, function,
87 "bad entry in directory #%lu: %s - " 87 "bad entry in directory #%lu: %s - block=%llu"
88 "offset=%u, inode=%u, rec_len=%d, name_len=%d", 88 "offset=%u(%u), inode=%u, rec_len=%d, name_len=%d",
89 dir->i_ino, error_msg, offset, 89 dir->i_ino, error_msg,
90 (unsigned long long) bh->b_blocknr,
91 (unsigned) (offset%bh->b_size), offset,
90 le32_to_cpu(de->inode), 92 le32_to_cpu(de->inode),
91 rlen, de->name_len); 93 rlen, de->name_len);
92 return error_msg == NULL ? 1 : 0; 94 return error_msg == NULL ? 1 : 0;
@@ -150,7 +152,7 @@ static int ext4_readdir(struct file *filp,
150 */ 152 */
151 if (!bh) { 153 if (!bh) {
152 if (!dir_has_error) { 154 if (!dir_has_error) {
153 ext4_error(sb, __func__, "directory #%lu " 155 ext4_error(sb, "directory #%lu "
154 "contains a hole at offset %Lu", 156 "contains a hole at offset %Lu",
155 inode->i_ino, 157 inode->i_ino,
156 (unsigned long long) filp->f_pos); 158 (unsigned long long) filp->f_pos);
@@ -303,7 +305,7 @@ static void free_rb_tree_fname(struct rb_root *root)
303 kfree(old); 305 kfree(old);
304 } 306 }
305 if (!parent) 307 if (!parent)
306 root->rb_node = NULL; 308 *root = RB_ROOT;
307 else if (parent->rb_left == n) 309 else if (parent->rb_left == n)
308 parent->rb_left = NULL; 310 parent->rb_left = NULL;
309 else if (parent->rb_right == n) 311 else if (parent->rb_right == n)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 874d169a193e..bf938cf7c5f0 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -53,6 +53,12 @@
53#define ext4_debug(f, a...) do {} while (0) 53#define ext4_debug(f, a...) do {} while (0)
54#endif 54#endif
55 55
56#define EXT4_ERROR_INODE(inode, fmt, a...) \
57 ext4_error_inode(__func__, (inode), (fmt), ## a);
58
59#define EXT4_ERROR_FILE(file, fmt, a...) \
60 ext4_error_file(__func__, (file), (fmt), ## a);
61
56/* data type for block offset of block group */ 62/* data type for block offset of block group */
57typedef int ext4_grpblk_t; 63typedef int ext4_grpblk_t;
58 64
@@ -133,14 +139,14 @@ struct mpage_da_data {
133 int pages_written; 139 int pages_written;
134 int retval; 140 int retval;
135}; 141};
136#define DIO_AIO_UNWRITTEN 0x1 142#define EXT4_IO_UNWRITTEN 0x1
137typedef struct ext4_io_end { 143typedef struct ext4_io_end {
138 struct list_head list; /* per-file finished AIO list */ 144 struct list_head list; /* per-file finished AIO list */
139 struct inode *inode; /* file being written to */ 145 struct inode *inode; /* file being written to */
140 unsigned int flag; /* unwritten or not */ 146 unsigned int flag; /* unwritten or not */
141 int error; /* I/O error code */ 147 struct page *page; /* page struct for buffer write */
142 ext4_lblk_t offset; /* offset in the file */ 148 loff_t offset; /* offset in the file */
143 size_t size; /* size of the extent */ 149 ssize_t size; /* size of the extent */
144 struct work_struct work; /* data work queue */ 150 struct work_struct work; /* data work queue */
145} ext4_io_end_t; 151} ext4_io_end_t;
146 152
@@ -284,10 +290,12 @@ struct flex_groups {
284#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ 290#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
285#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */ 291#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
286#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */ 292#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
293#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
294#define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
287#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ 295#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
288 296
289#define EXT4_FL_USER_VISIBLE 0x000BDFFF /* User visible flags */ 297#define EXT4_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */
290#define EXT4_FL_USER_MODIFIABLE 0x000B80FF /* User modifiable flags */ 298#define EXT4_FL_USER_MODIFIABLE 0x004B80FF /* User modifiable flags */
291 299
292/* Flags that should be inherited by new inodes from their parent. */ 300/* Flags that should be inherited by new inodes from their parent. */
293#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\ 301#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\
@@ -313,17 +321,6 @@ static inline __u32 ext4_mask_flags(umode_t mode, __u32 flags)
313 return flags & EXT4_OTHER_FLMASK; 321 return flags & EXT4_OTHER_FLMASK;
314} 322}
315 323
316/*
317 * Inode dynamic state flags
318 */
319#define EXT4_STATE_JDATA 0x00000001 /* journaled data exists */
320#define EXT4_STATE_NEW 0x00000002 /* inode is newly created */
321#define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */
322#define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */
323#define EXT4_STATE_DA_ALLOC_CLOSE 0x00000010 /* Alloc DA blks on close */
324#define EXT4_STATE_EXT_MIGRATE 0x00000020 /* Inode is migrating */
325#define EXT4_STATE_DIO_UNWRITTEN 0x00000040 /* need convert on dio done*/
326
327/* Used to pass group descriptor data when online resize is done */ 324/* Used to pass group descriptor data when online resize is done */
328struct ext4_new_group_input { 325struct ext4_new_group_input {
329 __u32 group; /* Group number for this data */ 326 __u32 group; /* Group number for this data */
@@ -364,19 +361,20 @@ struct ext4_new_group_data {
364 /* caller is from the direct IO path, request to creation of an 361 /* caller is from the direct IO path, request to creation of an
365 unitialized extents if not allocated, split the uninitialized 362 unitialized extents if not allocated, split the uninitialized
366 extent if blocks has been preallocated already*/ 363 extent if blocks has been preallocated already*/
367#define EXT4_GET_BLOCKS_DIO 0x0008 364#define EXT4_GET_BLOCKS_PRE_IO 0x0008
368#define EXT4_GET_BLOCKS_CONVERT 0x0010 365#define EXT4_GET_BLOCKS_CONVERT 0x0010
369#define EXT4_GET_BLOCKS_DIO_CREATE_EXT (EXT4_GET_BLOCKS_DIO|\ 366#define EXT4_GET_BLOCKS_IO_CREATE_EXT (EXT4_GET_BLOCKS_PRE_IO|\
367 EXT4_GET_BLOCKS_CREATE_UNINIT_EXT)
368 /* Convert extent to initialized after IO complete */
369#define EXT4_GET_BLOCKS_IO_CONVERT_EXT (EXT4_GET_BLOCKS_CONVERT|\
370 EXT4_GET_BLOCKS_CREATE_UNINIT_EXT) 370 EXT4_GET_BLOCKS_CREATE_UNINIT_EXT)
371 /* Convert extent to initialized after direct IO complete */
372#define EXT4_GET_BLOCKS_DIO_CONVERT_EXT (EXT4_GET_BLOCKS_CONVERT|\
373 EXT4_GET_BLOCKS_DIO_CREATE_EXT)
374 371
375/* 372/*
376 * Flags used by ext4_free_blocks 373 * Flags used by ext4_free_blocks
377 */ 374 */
378#define EXT4_FREE_BLOCKS_METADATA 0x0001 375#define EXT4_FREE_BLOCKS_METADATA 0x0001
379#define EXT4_FREE_BLOCKS_FORGET 0x0002 376#define EXT4_FREE_BLOCKS_FORGET 0x0002
377#define EXT4_FREE_BLOCKS_VALIDATED 0x0004
380 378
381/* 379/*
382 * ioctl commands 380 * ioctl commands
@@ -630,7 +628,7 @@ struct ext4_inode_info {
630 * near to their parent directory's inode. 628 * near to their parent directory's inode.
631 */ 629 */
632 ext4_group_t i_block_group; 630 ext4_group_t i_block_group;
633 __u32 i_state; /* Dynamic state flags for ext4 */ 631 unsigned long i_state_flags; /* Dynamic state flags */
634 632
635 ext4_lblk_t i_dir_start_lookup; 633 ext4_lblk_t i_dir_start_lookup;
636#ifdef CONFIG_EXT4_FS_XATTR 634#ifdef CONFIG_EXT4_FS_XATTR
@@ -708,8 +706,9 @@ struct ext4_inode_info {
708 qsize_t i_reserved_quota; 706 qsize_t i_reserved_quota;
709#endif 707#endif
710 708
711 /* completed async DIOs that might need unwritten extents handling */ 709 /* completed IOs that might need unwritten extents handling */
712 struct list_head i_aio_dio_complete_list; 710 struct list_head i_completed_io_list;
711 spinlock_t i_completed_io_lock;
713 /* current io_end structure for async DIO write*/ 712 /* current io_end structure for async DIO write*/
714 ext4_io_end_t *cur_aio_dio; 713 ext4_io_end_t *cur_aio_dio;
715 714
@@ -760,6 +759,7 @@ struct ext4_inode_info {
760#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */ 759#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
761#define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ 760#define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
762#define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ 761#define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
762#define EXT4_MOUNT_DIOREAD_NOLOCK 0x400000 /* Enable support for dio read nolocking */
763#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */ 763#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */
764#define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */ 764#define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */
765#define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */ 765#define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */
@@ -1014,7 +1014,7 @@ struct ext4_sb_info {
1014 atomic_t s_lock_busy; 1014 atomic_t s_lock_busy;
1015 1015
1016 /* locality groups */ 1016 /* locality groups */
1017 struct ext4_locality_group *s_locality_groups; 1017 struct ext4_locality_group __percpu *s_locality_groups;
1018 1018
1019 /* for write statistics */ 1019 /* for write statistics */
1020 unsigned long s_sectors_written_start; 1020 unsigned long s_sectors_written_start;
@@ -1050,6 +1050,34 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
1050 (ino >= EXT4_FIRST_INO(sb) && 1050 (ino >= EXT4_FIRST_INO(sb) &&
1051 ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count)); 1051 ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count));
1052} 1052}
1053
1054/*
1055 * Inode dynamic state flags
1056 */
1057enum {
1058 EXT4_STATE_JDATA, /* journaled data exists */
1059 EXT4_STATE_NEW, /* inode is newly created */
1060 EXT4_STATE_XATTR, /* has in-inode xattrs */
1061 EXT4_STATE_NO_EXPAND, /* No space for expansion */
1062 EXT4_STATE_DA_ALLOC_CLOSE, /* Alloc DA blks on close */
1063 EXT4_STATE_EXT_MIGRATE, /* Inode is migrating */
1064 EXT4_STATE_DIO_UNWRITTEN, /* need convert on dio done*/
1065};
1066
1067static inline int ext4_test_inode_state(struct inode *inode, int bit)
1068{
1069 return test_bit(bit, &EXT4_I(inode)->i_state_flags);
1070}
1071
1072static inline void ext4_set_inode_state(struct inode *inode, int bit)
1073{
1074 set_bit(bit, &EXT4_I(inode)->i_state_flags);
1075}
1076
1077static inline void ext4_clear_inode_state(struct inode *inode, int bit)
1078{
1079 clear_bit(bit, &EXT4_I(inode)->i_state_flags);
1080}
1053#else 1081#else
1054/* Assume that user mode programs are passing in an ext4fs superblock, not 1082/* Assume that user mode programs are passing in an ext4fs superblock, not
1055 * a kernel struct super_block. This will allow us to call the feature-test 1083 * a kernel struct super_block. This will allow us to call the feature-test
@@ -1126,6 +1154,8 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
1126#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080 1154#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
1127#define EXT4_FEATURE_INCOMPAT_MMP 0x0100 1155#define EXT4_FEATURE_INCOMPAT_MMP 0x0100
1128#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200 1156#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
1157#define EXT4_FEATURE_INCOMPAT_EA_INODE 0x0400 /* EA in inode */
1158#define EXT4_FEATURE_INCOMPAT_DIRDATA 0x1000 /* data in dirent */
1129 1159
1130#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR 1160#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
1131#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \ 1161#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
@@ -1416,7 +1446,7 @@ int ext4_get_block(struct inode *inode, sector_t iblock,
1416 struct buffer_head *bh_result, int create); 1446 struct buffer_head *bh_result, int create);
1417 1447
1418extern struct inode *ext4_iget(struct super_block *, unsigned long); 1448extern struct inode *ext4_iget(struct super_block *, unsigned long);
1419extern int ext4_write_inode(struct inode *, int); 1449extern int ext4_write_inode(struct inode *, struct writeback_control *);
1420extern int ext4_setattr(struct dentry *, struct iattr *); 1450extern int ext4_setattr(struct dentry *, struct iattr *);
1421extern int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry, 1451extern int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
1422 struct kstat *stat); 1452 struct kstat *stat);
@@ -1439,7 +1469,7 @@ extern int ext4_block_truncate_page(handle_t *handle,
1439 struct address_space *mapping, loff_t from); 1469 struct address_space *mapping, loff_t from);
1440extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf); 1470extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
1441extern qsize_t *ext4_get_reserved_space(struct inode *inode); 1471extern qsize_t *ext4_get_reserved_space(struct inode *inode);
1442extern int flush_aio_dio_completed_IO(struct inode *inode); 1472extern int flush_completed_IO(struct inode *inode);
1443extern void ext4_da_update_reserve_space(struct inode *inode, 1473extern void ext4_da_update_reserve_space(struct inode *inode,
1444 int used, int quota_claim); 1474 int used, int quota_claim);
1445/* ioctl.c */ 1475/* ioctl.c */
@@ -1465,13 +1495,20 @@ extern int ext4_group_extend(struct super_block *sb,
1465 ext4_fsblk_t n_blocks_count); 1495 ext4_fsblk_t n_blocks_count);
1466 1496
1467/* super.c */ 1497/* super.c */
1468extern void ext4_error(struct super_block *, const char *, const char *, ...) 1498extern void __ext4_error(struct super_block *, const char *, const char *, ...)
1499 __attribute__ ((format (printf, 3, 4)));
1500#define ext4_error(sb, message...) __ext4_error(sb, __func__, ## message)
1501extern void ext4_error_inode(const char *, struct inode *, const char *, ...)
1502 __attribute__ ((format (printf, 3, 4)));
1503extern void ext4_error_file(const char *, struct file *, const char *, ...)
1469 __attribute__ ((format (printf, 3, 4))); 1504 __attribute__ ((format (printf, 3, 4)));
1470extern void __ext4_std_error(struct super_block *, const char *, int); 1505extern void __ext4_std_error(struct super_block *, const char *, int);
1471extern void ext4_abort(struct super_block *, const char *, const char *, ...) 1506extern void ext4_abort(struct super_block *, const char *, const char *, ...)
1472 __attribute__ ((format (printf, 3, 4))); 1507 __attribute__ ((format (printf, 3, 4)));
1473extern void ext4_warning(struct super_block *, const char *, const char *, ...) 1508extern void __ext4_warning(struct super_block *, const char *,
1509 const char *, ...)
1474 __attribute__ ((format (printf, 3, 4))); 1510 __attribute__ ((format (printf, 3, 4)));
1511#define ext4_warning(sb, message...) __ext4_warning(sb, __func__, ## message)
1475extern void ext4_msg(struct super_block *, const char *, const char *, ...) 1512extern void ext4_msg(struct super_block *, const char *, const char *, ...)
1476 __attribute__ ((format (printf, 3, 4))); 1513 __attribute__ ((format (printf, 3, 4)));
1477extern void ext4_grp_locked_error(struct super_block *, ext4_group_t, 1514extern void ext4_grp_locked_error(struct super_block *, ext4_group_t,
@@ -1744,7 +1781,7 @@ extern void ext4_ext_release(struct super_block *);
1744extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset, 1781extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
1745 loff_t len); 1782 loff_t len);
1746extern int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset, 1783extern int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
1747 loff_t len); 1784 ssize_t len);
1748extern int ext4_get_blocks(handle_t *handle, struct inode *inode, 1785extern int ext4_get_blocks(handle_t *handle, struct inode *inode,
1749 sector_t block, unsigned int max_blocks, 1786 sector_t block, unsigned int max_blocks,
1750 struct buffer_head *bh, int flags); 1787 struct buffer_head *bh, int flags);
@@ -1756,6 +1793,15 @@ extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
1756 __u64 len, __u64 *moved_len); 1793 __u64 len, __u64 *moved_len);
1757 1794
1758 1795
1796/* BH_Uninit flag: blocks are allocated but uninitialized on disk */
1797enum ext4_state_bits {
1798 BH_Uninit /* blocks are allocated but uninitialized on disk */
1799 = BH_JBDPrivateStart,
1800};
1801
1802BUFFER_FNS(Uninit, uninit)
1803TAS_BUFFER_FNS(Uninit, uninit)
1804
1759/* 1805/*
1760 * Add new method to test wether block and inode bitmaps are properly 1806 * Add new method to test wether block and inode bitmaps are properly
1761 * initialized. With uninit_bg reading the block from disk is not enough 1807 * initialized. With uninit_bg reading the block from disk is not enough
@@ -1773,6 +1819,8 @@ static inline void set_bitmap_uptodate(struct buffer_head *bh)
1773 set_bit(BH_BITMAP_UPTODATE, &(bh)->b_state); 1819 set_bit(BH_BITMAP_UPTODATE, &(bh)->b_state);
1774} 1820}
1775 1821
1822#define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1)
1823
1776#endif /* __KERNEL__ */ 1824#endif /* __KERNEL__ */
1777 1825
1778#endif /* _EXT4_H */ 1826#endif /* _EXT4_H */
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index b57e5c711b6d..53d2764d71ca 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -125,14 +125,14 @@ int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
125 ext4_journal_abort_handle(where, __func__, bh, 125 ext4_journal_abort_handle(where, __func__, bh,
126 handle, err); 126 handle, err);
127 } else { 127 } else {
128 if (inode && bh) 128 if (inode)
129 mark_buffer_dirty_inode(bh, inode); 129 mark_buffer_dirty_inode(bh, inode);
130 else 130 else
131 mark_buffer_dirty(bh); 131 mark_buffer_dirty(bh);
132 if (inode && inode_needs_sync(inode)) { 132 if (inode && inode_needs_sync(inode)) {
133 sync_dirty_buffer(bh); 133 sync_dirty_buffer(bh);
134 if (buffer_req(bh) && !buffer_uptodate(bh)) { 134 if (buffer_req(bh) && !buffer_uptodate(bh)) {
135 ext4_error(inode->i_sb, __func__, 135 ext4_error(inode->i_sb,
136 "IO error syncing inode, " 136 "IO error syncing inode, "
137 "inode=%lu, block=%llu", 137 "inode=%lu, block=%llu",
138 inode->i_ino, 138 inode->i_ino,
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 05eca817d704..b79ad5126468 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -304,4 +304,28 @@ static inline int ext4_should_writeback_data(struct inode *inode)
304 return 0; 304 return 0;
305} 305}
306 306
307/*
308 * This function controls whether or not we should try to go down the
309 * dioread_nolock code paths, which makes it safe to avoid taking
310 * i_mutex for direct I/O reads. This only works for extent-based
311 * files, and it doesn't work for nobh or if data journaling is
312 * enabled, since the dioread_nolock code uses b_private to pass
313 * information back to the I/O completion handler, and this conflicts
314 * with the jbd's use of b_private.
315 */
316static inline int ext4_should_dioread_nolock(struct inode *inode)
317{
318 if (!test_opt(inode->i_sb, DIOREAD_NOLOCK))
319 return 0;
320 if (test_opt(inode->i_sb, NOBH))
321 return 0;
322 if (!S_ISREG(inode->i_mode))
323 return 0;
324 if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
325 return 0;
326 if (ext4_should_journal_data(inode))
327 return 0;
328 return 1;
329}
330
307#endif /* _EXT4_JBD2_H */ 331#endif /* _EXT4_JBD2_H */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 765a4826b118..94c8ee81f5e1 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -195,8 +195,7 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
195 if (S_ISREG(inode->i_mode)) 195 if (S_ISREG(inode->i_mode))
196 block_group++; 196 block_group++;
197 } 197 }
198 bg_start = (block_group * EXT4_BLOCKS_PER_GROUP(inode->i_sb)) + 198 bg_start = ext4_group_first_block_no(inode->i_sb, block_group);
199 le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_first_data_block);
200 last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1; 199 last_block = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es) - 1;
201 200
202 /* 201 /*
@@ -440,7 +439,7 @@ static int __ext4_ext_check(const char *function, struct inode *inode,
440 return 0; 439 return 0;
441 440
442corrupted: 441corrupted:
443 ext4_error(inode->i_sb, function, 442 __ext4_error(inode->i_sb, function,
444 "bad header/extent in inode #%lu: %s - magic %x, " 443 "bad header/extent in inode #%lu: %s - magic %x, "
445 "entries %u, max %u(%u), depth %u(%u)", 444 "entries %u, max %u(%u), depth %u(%u)",
446 inode->i_ino, error_msg, le16_to_cpu(eh->eh_magic), 445 inode->i_ino, error_msg, le16_to_cpu(eh->eh_magic),
@@ -703,7 +702,12 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block,
703 } 702 }
704 eh = ext_block_hdr(bh); 703 eh = ext_block_hdr(bh);
705 ppos++; 704 ppos++;
706 BUG_ON(ppos > depth); 705 if (unlikely(ppos > depth)) {
706 put_bh(bh);
707 EXT4_ERROR_INODE(inode,
708 "ppos %d > depth %d", ppos, depth);
709 goto err;
710 }
707 path[ppos].p_bh = bh; 711 path[ppos].p_bh = bh;
708 path[ppos].p_hdr = eh; 712 path[ppos].p_hdr = eh;
709 i--; 713 i--;
@@ -749,7 +753,12 @@ int ext4_ext_insert_index(handle_t *handle, struct inode *inode,
749 if (err) 753 if (err)
750 return err; 754 return err;
751 755
752 BUG_ON(logical == le32_to_cpu(curp->p_idx->ei_block)); 756 if (unlikely(logical == le32_to_cpu(curp->p_idx->ei_block))) {
757 EXT4_ERROR_INODE(inode,
758 "logical %d == ei_block %d!",
759 logical, le32_to_cpu(curp->p_idx->ei_block));
760 return -EIO;
761 }
753 len = EXT_MAX_INDEX(curp->p_hdr) - curp->p_idx; 762 len = EXT_MAX_INDEX(curp->p_hdr) - curp->p_idx;
754 if (logical > le32_to_cpu(curp->p_idx->ei_block)) { 763 if (logical > le32_to_cpu(curp->p_idx->ei_block)) {
755 /* insert after */ 764 /* insert after */
@@ -779,9 +788,17 @@ int ext4_ext_insert_index(handle_t *handle, struct inode *inode,
779 ext4_idx_store_pblock(ix, ptr); 788 ext4_idx_store_pblock(ix, ptr);
780 le16_add_cpu(&curp->p_hdr->eh_entries, 1); 789 le16_add_cpu(&curp->p_hdr->eh_entries, 1);
781 790
782 BUG_ON(le16_to_cpu(curp->p_hdr->eh_entries) 791 if (unlikely(le16_to_cpu(curp->p_hdr->eh_entries)
783 > le16_to_cpu(curp->p_hdr->eh_max)); 792 > le16_to_cpu(curp->p_hdr->eh_max))) {
784 BUG_ON(ix > EXT_LAST_INDEX(curp->p_hdr)); 793 EXT4_ERROR_INODE(inode,
794 "logical %d == ei_block %d!",
795 logical, le32_to_cpu(curp->p_idx->ei_block));
796 return -EIO;
797 }
798 if (unlikely(ix > EXT_LAST_INDEX(curp->p_hdr))) {
799 EXT4_ERROR_INODE(inode, "ix > EXT_LAST_INDEX!");
800 return -EIO;
801 }
785 802
786 err = ext4_ext_dirty(handle, inode, curp); 803 err = ext4_ext_dirty(handle, inode, curp);
787 ext4_std_error(inode->i_sb, err); 804 ext4_std_error(inode->i_sb, err);
@@ -819,7 +836,10 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
819 836
820 /* if current leaf will be split, then we should use 837 /* if current leaf will be split, then we should use
821 * border from split point */ 838 * border from split point */
822 BUG_ON(path[depth].p_ext > EXT_MAX_EXTENT(path[depth].p_hdr)); 839 if (unlikely(path[depth].p_ext > EXT_MAX_EXTENT(path[depth].p_hdr))) {
840 EXT4_ERROR_INODE(inode, "p_ext > EXT_MAX_EXTENT!");
841 return -EIO;
842 }
823 if (path[depth].p_ext != EXT_MAX_EXTENT(path[depth].p_hdr)) { 843 if (path[depth].p_ext != EXT_MAX_EXTENT(path[depth].p_hdr)) {
824 border = path[depth].p_ext[1].ee_block; 844 border = path[depth].p_ext[1].ee_block;
825 ext_debug("leaf will be split." 845 ext_debug("leaf will be split."
@@ -860,7 +880,11 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
860 880
861 /* initialize new leaf */ 881 /* initialize new leaf */
862 newblock = ablocks[--a]; 882 newblock = ablocks[--a];
863 BUG_ON(newblock == 0); 883 if (unlikely(newblock == 0)) {
884 EXT4_ERROR_INODE(inode, "newblock == 0!");
885 err = -EIO;
886 goto cleanup;
887 }
864 bh = sb_getblk(inode->i_sb, newblock); 888 bh = sb_getblk(inode->i_sb, newblock);
865 if (!bh) { 889 if (!bh) {
866 err = -EIO; 890 err = -EIO;
@@ -880,7 +904,14 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
880 ex = EXT_FIRST_EXTENT(neh); 904 ex = EXT_FIRST_EXTENT(neh);
881 905
882 /* move remainder of path[depth] to the new leaf */ 906 /* move remainder of path[depth] to the new leaf */
883 BUG_ON(path[depth].p_hdr->eh_entries != path[depth].p_hdr->eh_max); 907 if (unlikely(path[depth].p_hdr->eh_entries !=
908 path[depth].p_hdr->eh_max)) {
909 EXT4_ERROR_INODE(inode, "eh_entries %d != eh_max %d!",
910 path[depth].p_hdr->eh_entries,
911 path[depth].p_hdr->eh_max);
912 err = -EIO;
913 goto cleanup;
914 }
884 /* start copy from next extent */ 915 /* start copy from next extent */
885 /* TODO: we could do it by single memmove */ 916 /* TODO: we could do it by single memmove */
886 m = 0; 917 m = 0;
@@ -927,7 +958,11 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
927 958
928 /* create intermediate indexes */ 959 /* create intermediate indexes */
929 k = depth - at - 1; 960 k = depth - at - 1;
930 BUG_ON(k < 0); 961 if (unlikely(k < 0)) {
962 EXT4_ERROR_INODE(inode, "k %d < 0!", k);
963 err = -EIO;
964 goto cleanup;
965 }
931 if (k) 966 if (k)
932 ext_debug("create %d intermediate indices\n", k); 967 ext_debug("create %d intermediate indices\n", k);
933 /* insert new index into current index block */ 968 /* insert new index into current index block */
@@ -964,8 +999,14 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
964 999
965 ext_debug("cur 0x%p, last 0x%p\n", path[i].p_idx, 1000 ext_debug("cur 0x%p, last 0x%p\n", path[i].p_idx,
966 EXT_MAX_INDEX(path[i].p_hdr)); 1001 EXT_MAX_INDEX(path[i].p_hdr));
967 BUG_ON(EXT_MAX_INDEX(path[i].p_hdr) != 1002 if (unlikely(EXT_MAX_INDEX(path[i].p_hdr) !=
968 EXT_LAST_INDEX(path[i].p_hdr)); 1003 EXT_LAST_INDEX(path[i].p_hdr))) {
1004 EXT4_ERROR_INODE(inode,
1005 "EXT_MAX_INDEX != EXT_LAST_INDEX ee_block %d!",
1006 le32_to_cpu(path[i].p_ext->ee_block));
1007 err = -EIO;
1008 goto cleanup;
1009 }
969 while (path[i].p_idx <= EXT_MAX_INDEX(path[i].p_hdr)) { 1010 while (path[i].p_idx <= EXT_MAX_INDEX(path[i].p_hdr)) {
970 ext_debug("%d: move %d:%llu in new index %llu\n", i, 1011 ext_debug("%d: move %d:%llu in new index %llu\n", i,
971 le32_to_cpu(path[i].p_idx->ei_block), 1012 le32_to_cpu(path[i].p_idx->ei_block),
@@ -1203,7 +1244,10 @@ ext4_ext_search_left(struct inode *inode, struct ext4_ext_path *path,
1203 struct ext4_extent *ex; 1244 struct ext4_extent *ex;
1204 int depth, ee_len; 1245 int depth, ee_len;
1205 1246
1206 BUG_ON(path == NULL); 1247 if (unlikely(path == NULL)) {
1248 EXT4_ERROR_INODE(inode, "path == NULL *logical %d!", *logical);
1249 return -EIO;
1250 }
1207 depth = path->p_depth; 1251 depth = path->p_depth;
1208 *phys = 0; 1252 *phys = 0;
1209 1253
@@ -1217,15 +1261,33 @@ ext4_ext_search_left(struct inode *inode, struct ext4_ext_path *path,
1217 ex = path[depth].p_ext; 1261 ex = path[depth].p_ext;
1218 ee_len = ext4_ext_get_actual_len(ex); 1262 ee_len = ext4_ext_get_actual_len(ex);
1219 if (*logical < le32_to_cpu(ex->ee_block)) { 1263 if (*logical < le32_to_cpu(ex->ee_block)) {
1220 BUG_ON(EXT_FIRST_EXTENT(path[depth].p_hdr) != ex); 1264 if (unlikely(EXT_FIRST_EXTENT(path[depth].p_hdr) != ex)) {
1265 EXT4_ERROR_INODE(inode,
1266 "EXT_FIRST_EXTENT != ex *logical %d ee_block %d!",
1267 *logical, le32_to_cpu(ex->ee_block));
1268 return -EIO;
1269 }
1221 while (--depth >= 0) { 1270 while (--depth >= 0) {
1222 ix = path[depth].p_idx; 1271 ix = path[depth].p_idx;
1223 BUG_ON(ix != EXT_FIRST_INDEX(path[depth].p_hdr)); 1272 if (unlikely(ix != EXT_FIRST_INDEX(path[depth].p_hdr))) {
1273 EXT4_ERROR_INODE(inode,
1274 "ix (%d) != EXT_FIRST_INDEX (%d) (depth %d)!",
1275 ix != NULL ? ix->ei_block : 0,
1276 EXT_FIRST_INDEX(path[depth].p_hdr) != NULL ?
1277 EXT_FIRST_INDEX(path[depth].p_hdr)->ei_block : 0,
1278 depth);
1279 return -EIO;
1280 }
1224 } 1281 }
1225 return 0; 1282 return 0;
1226 } 1283 }
1227 1284
1228 BUG_ON(*logical < (le32_to_cpu(ex->ee_block) + ee_len)); 1285 if (unlikely(*logical < (le32_to_cpu(ex->ee_block) + ee_len))) {
1286 EXT4_ERROR_INODE(inode,
1287 "logical %d < ee_block %d + ee_len %d!",
1288 *logical, le32_to_cpu(ex->ee_block), ee_len);
1289 return -EIO;
1290 }
1229 1291
1230 *logical = le32_to_cpu(ex->ee_block) + ee_len - 1; 1292 *logical = le32_to_cpu(ex->ee_block) + ee_len - 1;
1231 *phys = ext_pblock(ex) + ee_len - 1; 1293 *phys = ext_pblock(ex) + ee_len - 1;
@@ -1251,7 +1313,10 @@ ext4_ext_search_right(struct inode *inode, struct ext4_ext_path *path,
1251 int depth; /* Note, NOT eh_depth; depth from top of tree */ 1313 int depth; /* Note, NOT eh_depth; depth from top of tree */
1252 int ee_len; 1314 int ee_len;
1253 1315
1254 BUG_ON(path == NULL); 1316 if (unlikely(path == NULL)) {
1317 EXT4_ERROR_INODE(inode, "path == NULL *logical %d!", *logical);
1318 return -EIO;
1319 }
1255 depth = path->p_depth; 1320 depth = path->p_depth;
1256 *phys = 0; 1321 *phys = 0;
1257 1322
@@ -1265,17 +1330,32 @@ ext4_ext_search_right(struct inode *inode, struct ext4_ext_path *path,
1265 ex = path[depth].p_ext; 1330 ex = path[depth].p_ext;
1266 ee_len = ext4_ext_get_actual_len(ex); 1331 ee_len = ext4_ext_get_actual_len(ex);
1267 if (*logical < le32_to_cpu(ex->ee_block)) { 1332 if (*logical < le32_to_cpu(ex->ee_block)) {
1268 BUG_ON(EXT_FIRST_EXTENT(path[depth].p_hdr) != ex); 1333 if (unlikely(EXT_FIRST_EXTENT(path[depth].p_hdr) != ex)) {
1334 EXT4_ERROR_INODE(inode,
1335 "first_extent(path[%d].p_hdr) != ex",
1336 depth);
1337 return -EIO;
1338 }
1269 while (--depth >= 0) { 1339 while (--depth >= 0) {
1270 ix = path[depth].p_idx; 1340 ix = path[depth].p_idx;
1271 BUG_ON(ix != EXT_FIRST_INDEX(path[depth].p_hdr)); 1341 if (unlikely(ix != EXT_FIRST_INDEX(path[depth].p_hdr))) {
1342 EXT4_ERROR_INODE(inode,
1343 "ix != EXT_FIRST_INDEX *logical %d!",
1344 *logical);
1345 return -EIO;
1346 }
1272 } 1347 }
1273 *logical = le32_to_cpu(ex->ee_block); 1348 *logical = le32_to_cpu(ex->ee_block);
1274 *phys = ext_pblock(ex); 1349 *phys = ext_pblock(ex);
1275 return 0; 1350 return 0;
1276 } 1351 }
1277 1352
1278 BUG_ON(*logical < (le32_to_cpu(ex->ee_block) + ee_len)); 1353 if (unlikely(*logical < (le32_to_cpu(ex->ee_block) + ee_len))) {
1354 EXT4_ERROR_INODE(inode,
1355 "logical %d < ee_block %d + ee_len %d!",
1356 *logical, le32_to_cpu(ex->ee_block), ee_len);
1357 return -EIO;
1358 }
1279 1359
1280 if (ex != EXT_LAST_EXTENT(path[depth].p_hdr)) { 1360 if (ex != EXT_LAST_EXTENT(path[depth].p_hdr)) {
1281 /* next allocated block in this leaf */ 1361 /* next allocated block in this leaf */
@@ -1414,8 +1494,12 @@ static int ext4_ext_correct_indexes(handle_t *handle, struct inode *inode,
1414 1494
1415 eh = path[depth].p_hdr; 1495 eh = path[depth].p_hdr;
1416 ex = path[depth].p_ext; 1496 ex = path[depth].p_ext;
1417 BUG_ON(ex == NULL); 1497
1418 BUG_ON(eh == NULL); 1498 if (unlikely(ex == NULL || eh == NULL)) {
1499 EXT4_ERROR_INODE(inode,
1500 "ex %p == NULL or eh %p == NULL", ex, eh);
1501 return -EIO;
1502 }
1419 1503
1420 if (depth == 0) { 1504 if (depth == 0) {
1421 /* there is no tree at all */ 1505 /* there is no tree at all */
@@ -1538,8 +1622,9 @@ int ext4_ext_try_to_merge(struct inode *inode,
1538 merge_done = 1; 1622 merge_done = 1;
1539 WARN_ON(eh->eh_entries == 0); 1623 WARN_ON(eh->eh_entries == 0);
1540 if (!eh->eh_entries) 1624 if (!eh->eh_entries)
1541 ext4_error(inode->i_sb, "ext4_ext_try_to_merge", 1625 ext4_error(inode->i_sb,
1542 "inode#%lu, eh->eh_entries = 0!", inode->i_ino); 1626 "inode#%lu, eh->eh_entries = 0!",
1627 inode->i_ino);
1543 } 1628 }
1544 1629
1545 return merge_done; 1630 return merge_done;
@@ -1612,13 +1697,19 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
1612 ext4_lblk_t next; 1697 ext4_lblk_t next;
1613 unsigned uninitialized = 0; 1698 unsigned uninitialized = 0;
1614 1699
1615 BUG_ON(ext4_ext_get_actual_len(newext) == 0); 1700 if (unlikely(ext4_ext_get_actual_len(newext) == 0)) {
1701 EXT4_ERROR_INODE(inode, "ext4_ext_get_actual_len(newext) == 0");
1702 return -EIO;
1703 }
1616 depth = ext_depth(inode); 1704 depth = ext_depth(inode);
1617 ex = path[depth].p_ext; 1705 ex = path[depth].p_ext;
1618 BUG_ON(path[depth].p_hdr == NULL); 1706 if (unlikely(path[depth].p_hdr == NULL)) {
1707 EXT4_ERROR_INODE(inode, "path[%d].p_hdr == NULL", depth);
1708 return -EIO;
1709 }
1619 1710
1620 /* try to insert block into found extent and return */ 1711 /* try to insert block into found extent and return */
1621 if (ex && (flag != EXT4_GET_BLOCKS_DIO_CREATE_EXT) 1712 if (ex && !(flag & EXT4_GET_BLOCKS_PRE_IO)
1622 && ext4_can_extents_be_merged(inode, ex, newext)) { 1713 && ext4_can_extents_be_merged(inode, ex, newext)) {
1623 ext_debug("append [%d]%d block to %d:[%d]%d (from %llu)\n", 1714 ext_debug("append [%d]%d block to %d:[%d]%d (from %llu)\n",
1624 ext4_ext_is_uninitialized(newext), 1715 ext4_ext_is_uninitialized(newext),
@@ -1739,7 +1830,7 @@ has_space:
1739 1830
1740merge: 1831merge:
1741 /* try to merge extents to the right */ 1832 /* try to merge extents to the right */
1742 if (flag != EXT4_GET_BLOCKS_DIO_CREATE_EXT) 1833 if (!(flag & EXT4_GET_BLOCKS_PRE_IO))
1743 ext4_ext_try_to_merge(inode, path, nearex); 1834 ext4_ext_try_to_merge(inode, path, nearex);
1744 1835
1745 /* try to merge extents to the left */ 1836 /* try to merge extents to the left */
@@ -1787,7 +1878,11 @@ int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
1787 } 1878 }
1788 1879
1789 depth = ext_depth(inode); 1880 depth = ext_depth(inode);
1790 BUG_ON(path[depth].p_hdr == NULL); 1881 if (unlikely(path[depth].p_hdr == NULL)) {
1882 EXT4_ERROR_INODE(inode, "path[%d].p_hdr == NULL", depth);
1883 err = -EIO;
1884 break;
1885 }
1791 ex = path[depth].p_ext; 1886 ex = path[depth].p_ext;
1792 next = ext4_ext_next_allocated_block(path); 1887 next = ext4_ext_next_allocated_block(path);
1793 1888
@@ -1838,7 +1933,11 @@ int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
1838 cbex.ec_type = EXT4_EXT_CACHE_EXTENT; 1933 cbex.ec_type = EXT4_EXT_CACHE_EXTENT;
1839 } 1934 }
1840 1935
1841 BUG_ON(cbex.ec_len == 0); 1936 if (unlikely(cbex.ec_len == 0)) {
1937 EXT4_ERROR_INODE(inode, "cbex.ec_len == 0");
1938 err = -EIO;
1939 break;
1940 }
1842 err = func(inode, path, &cbex, ex, cbdata); 1941 err = func(inode, path, &cbex, ex, cbdata);
1843 ext4_ext_drop_refs(path); 1942 ext4_ext_drop_refs(path);
1844 1943
@@ -1952,7 +2051,7 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
1952 2051
1953 BUG_ON(cex->ec_type != EXT4_EXT_CACHE_GAP && 2052 BUG_ON(cex->ec_type != EXT4_EXT_CACHE_GAP &&
1954 cex->ec_type != EXT4_EXT_CACHE_EXTENT); 2053 cex->ec_type != EXT4_EXT_CACHE_EXTENT);
1955 if (block >= cex->ec_block && block < cex->ec_block + cex->ec_len) { 2054 if (in_range(block, cex->ec_block, cex->ec_len)) {
1956 ex->ee_block = cpu_to_le32(cex->ec_block); 2055 ex->ee_block = cpu_to_le32(cex->ec_block);
1957 ext4_ext_store_pblock(ex, cex->ec_start); 2056 ext4_ext_store_pblock(ex, cex->ec_start);
1958 ex->ee_len = cpu_to_le16(cex->ec_len); 2057 ex->ee_len = cpu_to_le16(cex->ec_len);
@@ -1981,7 +2080,10 @@ static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
1981 /* free index block */ 2080 /* free index block */
1982 path--; 2081 path--;
1983 leaf = idx_pblock(path->p_idx); 2082 leaf = idx_pblock(path->p_idx);
1984 BUG_ON(path->p_hdr->eh_entries == 0); 2083 if (unlikely(path->p_hdr->eh_entries == 0)) {
2084 EXT4_ERROR_INODE(inode, "path->p_hdr->eh_entries == 0");
2085 return -EIO;
2086 }
1985 err = ext4_ext_get_access(handle, inode, path); 2087 err = ext4_ext_get_access(handle, inode, path);
1986 if (err) 2088 if (err)
1987 return err; 2089 return err;
@@ -2119,8 +2221,10 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
2119 if (!path[depth].p_hdr) 2221 if (!path[depth].p_hdr)
2120 path[depth].p_hdr = ext_block_hdr(path[depth].p_bh); 2222 path[depth].p_hdr = ext_block_hdr(path[depth].p_bh);
2121 eh = path[depth].p_hdr; 2223 eh = path[depth].p_hdr;
2122 BUG_ON(eh == NULL); 2224 if (unlikely(path[depth].p_hdr == NULL)) {
2123 2225 EXT4_ERROR_INODE(inode, "path[%d].p_hdr == NULL", depth);
2226 return -EIO;
2227 }
2124 /* find where to start removing */ 2228 /* find where to start removing */
2125 ex = EXT_LAST_EXTENT(eh); 2229 ex = EXT_LAST_EXTENT(eh);
2126 2230
@@ -2983,7 +3087,7 @@ fix_extent_len:
2983 ext4_ext_dirty(handle, inode, path + depth); 3087 ext4_ext_dirty(handle, inode, path + depth);
2984 return err; 3088 return err;
2985} 3089}
2986static int ext4_convert_unwritten_extents_dio(handle_t *handle, 3090static int ext4_convert_unwritten_extents_endio(handle_t *handle,
2987 struct inode *inode, 3091 struct inode *inode,
2988 struct ext4_ext_path *path) 3092 struct ext4_ext_path *path)
2989{ 3093{
@@ -3063,8 +3167,8 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
3063 flags, allocated); 3167 flags, allocated);
3064 ext4_ext_show_leaf(inode, path); 3168 ext4_ext_show_leaf(inode, path);
3065 3169
3066 /* DIO get_block() before submit the IO, split the extent */ 3170 /* get_block() before submit the IO, split the extent */
3067 if (flags == EXT4_GET_BLOCKS_DIO_CREATE_EXT) { 3171 if ((flags & EXT4_GET_BLOCKS_PRE_IO)) {
3068 ret = ext4_split_unwritten_extents(handle, 3172 ret = ext4_split_unwritten_extents(handle,
3069 inode, path, iblock, 3173 inode, path, iblock,
3070 max_blocks, flags); 3174 max_blocks, flags);
@@ -3074,14 +3178,16 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
3074 * completed 3178 * completed
3075 */ 3179 */
3076 if (io) 3180 if (io)
3077 io->flag = DIO_AIO_UNWRITTEN; 3181 io->flag = EXT4_IO_UNWRITTEN;
3078 else 3182 else
3079 EXT4_I(inode)->i_state |= EXT4_STATE_DIO_UNWRITTEN; 3183 ext4_set_inode_state(inode, EXT4_STATE_DIO_UNWRITTEN);
3184 if (ext4_should_dioread_nolock(inode))
3185 set_buffer_uninit(bh_result);
3080 goto out; 3186 goto out;
3081 } 3187 }
3082 /* async DIO end_io complete, convert the filled extent to written */ 3188 /* IO end_io complete, convert the filled extent to written */
3083 if (flags == EXT4_GET_BLOCKS_DIO_CONVERT_EXT) { 3189 if ((flags & EXT4_GET_BLOCKS_CONVERT)) {
3084 ret = ext4_convert_unwritten_extents_dio(handle, inode, 3190 ret = ext4_convert_unwritten_extents_endio(handle, inode,
3085 path); 3191 path);
3086 if (ret >= 0) 3192 if (ret >= 0)
3087 ext4_update_inode_fsync_trans(handle, inode, 1); 3193 ext4_update_inode_fsync_trans(handle, inode, 1);
@@ -3185,7 +3291,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
3185{ 3291{
3186 struct ext4_ext_path *path = NULL; 3292 struct ext4_ext_path *path = NULL;
3187 struct ext4_extent_header *eh; 3293 struct ext4_extent_header *eh;
3188 struct ext4_extent newex, *ex; 3294 struct ext4_extent newex, *ex, *last_ex;
3189 ext4_fsblk_t newblock; 3295 ext4_fsblk_t newblock;
3190 int err = 0, depth, ret, cache_type; 3296 int err = 0, depth, ret, cache_type;
3191 unsigned int allocated = 0; 3297 unsigned int allocated = 0;
@@ -3237,10 +3343,10 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
3237 * this situation is possible, though, _during_ tree modification; 3343 * this situation is possible, though, _during_ tree modification;
3238 * this is why assert can't be put in ext4_ext_find_extent() 3344 * this is why assert can't be put in ext4_ext_find_extent()
3239 */ 3345 */
3240 if (path[depth].p_ext == NULL && depth != 0) { 3346 if (unlikely(path[depth].p_ext == NULL && depth != 0)) {
3241 ext4_error(inode->i_sb, __func__, "bad extent address " 3347 EXT4_ERROR_INODE(inode, "bad extent address "
3242 "inode: %lu, iblock: %d, depth: %d", 3348 "iblock: %d, depth: %d pblock %lld",
3243 inode->i_ino, iblock, depth); 3349 iblock, depth, path[depth].p_block);
3244 err = -EIO; 3350 err = -EIO;
3245 goto out2; 3351 goto out2;
3246 } 3352 }
@@ -3258,7 +3364,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
3258 */ 3364 */
3259 ee_len = ext4_ext_get_actual_len(ex); 3365 ee_len = ext4_ext_get_actual_len(ex);
3260 /* if found extent covers block, simply return it */ 3366 /* if found extent covers block, simply return it */
3261 if (iblock >= ee_block && iblock < ee_block + ee_len) { 3367 if (in_range(iblock, ee_block, ee_len)) {
3262 newblock = iblock - ee_block + ee_start; 3368 newblock = iblock - ee_block + ee_start;
3263 /* number of remaining blocks in the extent */ 3369 /* number of remaining blocks in the extent */
3264 allocated = ee_len - (iblock - ee_block); 3370 allocated = ee_len - (iblock - ee_block);
@@ -3350,21 +3456,35 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
3350 if (flags & EXT4_GET_BLOCKS_UNINIT_EXT){ 3456 if (flags & EXT4_GET_BLOCKS_UNINIT_EXT){
3351 ext4_ext_mark_uninitialized(&newex); 3457 ext4_ext_mark_uninitialized(&newex);
3352 /* 3458 /*
3353 * io_end structure was created for every async 3459 * io_end structure was created for every IO write to an
3354 * direct IO write to the middle of the file. 3460 * uninitialized extent. To avoid unecessary conversion,
3355 * To avoid unecessary convertion for every aio dio rewrite 3461 * here we flag the IO that really needs the conversion.
3356 * to the mid of file, here we flag the IO that is really
3357 * need the convertion.
3358 * For non asycn direct IO case, flag the inode state 3462 * For non asycn direct IO case, flag the inode state
3359 * that we need to perform convertion when IO is done. 3463 * that we need to perform convertion when IO is done.
3360 */ 3464 */
3361 if (flags == EXT4_GET_BLOCKS_DIO_CREATE_EXT) { 3465 if ((flags & EXT4_GET_BLOCKS_PRE_IO)) {
3362 if (io) 3466 if (io)
3363 io->flag = DIO_AIO_UNWRITTEN; 3467 io->flag = EXT4_IO_UNWRITTEN;
3364 else 3468 else
3365 EXT4_I(inode)->i_state |= 3469 ext4_set_inode_state(inode,
3366 EXT4_STATE_DIO_UNWRITTEN;; 3470 EXT4_STATE_DIO_UNWRITTEN);
3471 }
3472 if (ext4_should_dioread_nolock(inode))
3473 set_buffer_uninit(bh_result);
3474 }
3475
3476 if (unlikely(EXT4_I(inode)->i_flags & EXT4_EOFBLOCKS_FL)) {
3477 if (unlikely(!eh->eh_entries)) {
3478 EXT4_ERROR_INODE(inode,
3479 "eh->eh_entries == 0 ee_block %d",
3480 ex->ee_block);
3481 err = -EIO;
3482 goto out2;
3367 } 3483 }
3484 last_ex = EXT_LAST_EXTENT(eh);
3485 if (iblock + ar.len > le32_to_cpu(last_ex->ee_block)
3486 + ext4_ext_get_actual_len(last_ex))
3487 EXT4_I(inode)->i_flags &= ~EXT4_EOFBLOCKS_FL;
3368 } 3488 }
3369 err = ext4_ext_insert_extent(handle, inode, path, &newex, flags); 3489 err = ext4_ext_insert_extent(handle, inode, path, &newex, flags);
3370 if (err) { 3490 if (err) {
@@ -3499,6 +3619,13 @@ static void ext4_falloc_update_inode(struct inode *inode,
3499 i_size_write(inode, new_size); 3619 i_size_write(inode, new_size);
3500 if (new_size > EXT4_I(inode)->i_disksize) 3620 if (new_size > EXT4_I(inode)->i_disksize)
3501 ext4_update_i_disksize(inode, new_size); 3621 ext4_update_i_disksize(inode, new_size);
3622 } else {
3623 /*
3624 * Mark that we allocate beyond EOF so the subsequent truncate
3625 * can proceed even if the new size is the same as i_size.
3626 */
3627 if (new_size > i_size_read(inode))
3628 EXT4_I(inode)->i_flags |= EXT4_EOFBLOCKS_FL;
3502 } 3629 }
3503 3630
3504} 3631}
@@ -3603,7 +3730,7 @@ retry:
3603 * Returns 0 on success. 3730 * Returns 0 on success.
3604 */ 3731 */
3605int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset, 3732int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
3606 loff_t len) 3733 ssize_t len)
3607{ 3734{
3608 handle_t *handle; 3735 handle_t *handle;
3609 ext4_lblk_t block; 3736 ext4_lblk_t block;
@@ -3635,7 +3762,7 @@ int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
3635 map_bh.b_state = 0; 3762 map_bh.b_state = 0;
3636 ret = ext4_get_blocks(handle, inode, block, 3763 ret = ext4_get_blocks(handle, inode, block,
3637 max_blocks, &map_bh, 3764 max_blocks, &map_bh,
3638 EXT4_GET_BLOCKS_DIO_CONVERT_EXT); 3765 EXT4_GET_BLOCKS_IO_CONVERT_EXT);
3639 if (ret <= 0) { 3766 if (ret <= 0) {
3640 WARN_ON(ret <= 0); 3767 WARN_ON(ret <= 0);
3641 printk(KERN_ERR "%s: ext4_ext_get_blocks " 3768 printk(KERN_ERR "%s: ext4_ext_get_blocks "
@@ -3739,7 +3866,7 @@ static int ext4_xattr_fiemap(struct inode *inode,
3739 int error = 0; 3866 int error = 0;
3740 3867
3741 /* in-inode? */ 3868 /* in-inode? */
3742 if (EXT4_I(inode)->i_state & EXT4_STATE_XATTR) { 3869 if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) {
3743 struct ext4_iloc iloc; 3870 struct ext4_iloc iloc;
3744 int offset; /* offset of xattr in inode */ 3871 int offset; /* offset of xattr in inode */
3745 3872
@@ -3767,7 +3894,6 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3767 __u64 start, __u64 len) 3894 __u64 start, __u64 len)
3768{ 3895{
3769 ext4_lblk_t start_blk; 3896 ext4_lblk_t start_blk;
3770 ext4_lblk_t len_blks;
3771 int error = 0; 3897 int error = 0;
3772 3898
3773 /* fallback to generic here if not in extents fmt */ 3899 /* fallback to generic here if not in extents fmt */
@@ -3781,8 +3907,14 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3781 if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) { 3907 if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) {
3782 error = ext4_xattr_fiemap(inode, fieinfo); 3908 error = ext4_xattr_fiemap(inode, fieinfo);
3783 } else { 3909 } else {
3910 ext4_lblk_t len_blks;
3911 __u64 last_blk;
3912
3784 start_blk = start >> inode->i_sb->s_blocksize_bits; 3913 start_blk = start >> inode->i_sb->s_blocksize_bits;
3785 len_blks = len >> inode->i_sb->s_blocksize_bits; 3914 last_blk = (start + len - 1) >> inode->i_sb->s_blocksize_bits;
3915 if (last_blk >= EXT_MAX_BLOCK)
3916 last_blk = EXT_MAX_BLOCK-1;
3917 len_blks = ((ext4_lblk_t) last_blk) - start_blk + 1;
3786 3918
3787 /* 3919 /*
3788 * Walk the extent tree gathering extent information. 3920 * Walk the extent tree gathering extent information.
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 9630583cef28..503a48927402 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -35,9 +35,9 @@
35 */ 35 */
36static int ext4_release_file(struct inode *inode, struct file *filp) 36static int ext4_release_file(struct inode *inode, struct file *filp)
37{ 37{
38 if (EXT4_I(inode)->i_state & EXT4_STATE_DA_ALLOC_CLOSE) { 38 if (ext4_test_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE)) {
39 ext4_alloc_da_blocks(inode); 39 ext4_alloc_da_blocks(inode);
40 EXT4_I(inode)->i_state &= ~EXT4_STATE_DA_ALLOC_CLOSE; 40 ext4_clear_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE);
41 } 41 }
42 /* if we are the last writer on the inode, drop the block reservation */ 42 /* if we are the last writer on the inode, drop the block reservation */
43 if ((filp->f_mode & FMODE_WRITE) && 43 if ((filp->f_mode & FMODE_WRITE) &&
@@ -116,11 +116,9 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
116 * devices or filesystem images. 116 * devices or filesystem images.
117 */ 117 */
118 memset(buf, 0, sizeof(buf)); 118 memset(buf, 0, sizeof(buf));
119 path.mnt = mnt->mnt_parent; 119 path.mnt = mnt;
120 path.dentry = mnt->mnt_mountpoint; 120 path.dentry = mnt->mnt_root;
121 path_get(&path);
122 cp = d_path(&path, buf, sizeof(buf)); 121 cp = d_path(&path, buf, sizeof(buf));
123 path_put(&path);
124 if (!IS_ERR(cp)) { 122 if (!IS_ERR(cp)) {
125 memcpy(sbi->s_es->s_last_mounted, cp, 123 memcpy(sbi->s_es->s_last_mounted, cp,
126 sizeof(sbi->s_es->s_last_mounted)); 124 sizeof(sbi->s_es->s_last_mounted));
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 98bd140aad01..0d0c3239c1cd 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -63,7 +63,7 @@ int ext4_sync_file(struct file *file, struct dentry *dentry, int datasync)
63 if (inode->i_sb->s_flags & MS_RDONLY) 63 if (inode->i_sb->s_flags & MS_RDONLY)
64 return 0; 64 return 0;
65 65
66 ret = flush_aio_dio_completed_IO(inode); 66 ret = flush_completed_IO(inode);
67 if (ret < 0) 67 if (ret < 0)
68 return ret; 68 return ret;
69 69
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index f3624ead4f6c..004c9da9e5c6 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -76,8 +76,7 @@ unsigned ext4_init_inode_bitmap(struct super_block *sb, struct buffer_head *bh,
76 /* If checksum is bad mark all blocks and inodes use to prevent 76 /* If checksum is bad mark all blocks and inodes use to prevent
77 * allocation, essentially implementing a per-group read-only flag. */ 77 * allocation, essentially implementing a per-group read-only flag. */
78 if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) { 78 if (!ext4_group_desc_csum_verify(sbi, block_group, gdp)) {
79 ext4_error(sb, __func__, "Checksum bad for group %u", 79 ext4_error(sb, "Checksum bad for group %u", block_group);
80 block_group);
81 ext4_free_blks_set(sb, gdp, 0); 80 ext4_free_blks_set(sb, gdp, 0);
82 ext4_free_inodes_set(sb, gdp, 0); 81 ext4_free_inodes_set(sb, gdp, 0);
83 ext4_itable_unused_set(sb, gdp, 0); 82 ext4_itable_unused_set(sb, gdp, 0);
@@ -111,8 +110,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
111 bitmap_blk = ext4_inode_bitmap(sb, desc); 110 bitmap_blk = ext4_inode_bitmap(sb, desc);
112 bh = sb_getblk(sb, bitmap_blk); 111 bh = sb_getblk(sb, bitmap_blk);
113 if (unlikely(!bh)) { 112 if (unlikely(!bh)) {
114 ext4_error(sb, __func__, 113 ext4_error(sb, "Cannot read inode bitmap - "
115 "Cannot read inode bitmap - "
116 "block_group = %u, inode_bitmap = %llu", 114 "block_group = %u, inode_bitmap = %llu",
117 block_group, bitmap_blk); 115 block_group, bitmap_blk);
118 return NULL; 116 return NULL;
@@ -153,8 +151,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
153 set_bitmap_uptodate(bh); 151 set_bitmap_uptodate(bh);
154 if (bh_submit_read(bh) < 0) { 152 if (bh_submit_read(bh) < 0) {
155 put_bh(bh); 153 put_bh(bh);
156 ext4_error(sb, __func__, 154 ext4_error(sb, "Cannot read inode bitmap - "
157 "Cannot read inode bitmap - "
158 "block_group = %u, inode_bitmap = %llu", 155 "block_group = %u, inode_bitmap = %llu",
159 block_group, bitmap_blk); 156 block_group, bitmap_blk);
160 return NULL; 157 return NULL;
@@ -229,8 +226,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
229 226
230 es = EXT4_SB(sb)->s_es; 227 es = EXT4_SB(sb)->s_es;
231 if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) { 228 if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
232 ext4_error(sb, "ext4_free_inode", 229 ext4_error(sb, "reserved or nonexistent inode %lu", ino);
233 "reserved or nonexistent inode %lu", ino);
234 goto error_return; 230 goto error_return;
235 } 231 }
236 block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb); 232 block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
@@ -248,8 +244,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
248 cleared = ext4_clear_bit_atomic(ext4_group_lock_ptr(sb, block_group), 244 cleared = ext4_clear_bit_atomic(ext4_group_lock_ptr(sb, block_group),
249 bit, bitmap_bh->b_data); 245 bit, bitmap_bh->b_data);
250 if (!cleared) 246 if (!cleared)
251 ext4_error(sb, "ext4_free_inode", 247 ext4_error(sb, "bit already cleared for inode %lu", ino);
252 "bit already cleared for inode %lu", ino);
253 else { 248 else {
254 gdp = ext4_get_group_desc(sb, block_group, &bh2); 249 gdp = ext4_get_group_desc(sb, block_group, &bh2);
255 250
@@ -736,8 +731,7 @@ static int ext4_claim_inode(struct super_block *sb,
736 if ((group == 0 && ino < EXT4_FIRST_INO(sb)) || 731 if ((group == 0 && ino < EXT4_FIRST_INO(sb)) ||
737 ino > EXT4_INODES_PER_GROUP(sb)) { 732 ino > EXT4_INODES_PER_GROUP(sb)) {
738 ext4_unlock_group(sb, group); 733 ext4_unlock_group(sb, group);
739 ext4_error(sb, __func__, 734 ext4_error(sb, "reserved inode or inode > inodes count - "
740 "reserved inode or inode > inodes count - "
741 "block_group = %u, inode=%lu", group, 735 "block_group = %u, inode=%lu", group,
742 ino + group * EXT4_INODES_PER_GROUP(sb)); 736 ino + group * EXT4_INODES_PER_GROUP(sb));
743 return 1; 737 return 1;
@@ -904,7 +898,7 @@ repeat_in_this_group:
904 BUFFER_TRACE(inode_bitmap_bh, 898 BUFFER_TRACE(inode_bitmap_bh,
905 "call ext4_handle_dirty_metadata"); 899 "call ext4_handle_dirty_metadata");
906 err = ext4_handle_dirty_metadata(handle, 900 err = ext4_handle_dirty_metadata(handle,
907 inode, 901 NULL,
908 inode_bitmap_bh); 902 inode_bitmap_bh);
909 if (err) 903 if (err)
910 goto fail; 904 goto fail;
@@ -1029,7 +1023,8 @@ got:
1029 inode->i_generation = sbi->s_next_generation++; 1023 inode->i_generation = sbi->s_next_generation++;
1030 spin_unlock(&sbi->s_next_gen_lock); 1024 spin_unlock(&sbi->s_next_gen_lock);
1031 1025
1032 ei->i_state = EXT4_STATE_NEW; 1026 ei->i_state_flags = 0;
1027 ext4_set_inode_state(inode, EXT4_STATE_NEW);
1033 1028
1034 ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize; 1029 ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize;
1035 1030
@@ -1098,8 +1093,7 @@ struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
1098 1093
1099 /* Error cases - e2fsck has already cleaned up for us */ 1094 /* Error cases - e2fsck has already cleaned up for us */
1100 if (ino > max_ino) { 1095 if (ino > max_ino) {
1101 ext4_warning(sb, __func__, 1096 ext4_warning(sb, "bad orphan ino %lu! e2fsck was run?", ino);
1102 "bad orphan ino %lu! e2fsck was run?", ino);
1103 goto error; 1097 goto error;
1104 } 1098 }
1105 1099
@@ -1107,8 +1101,7 @@ struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
1107 bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb); 1101 bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
1108 bitmap_bh = ext4_read_inode_bitmap(sb, block_group); 1102 bitmap_bh = ext4_read_inode_bitmap(sb, block_group);
1109 if (!bitmap_bh) { 1103 if (!bitmap_bh) {
1110 ext4_warning(sb, __func__, 1104 ext4_warning(sb, "inode bitmap error for orphan %lu", ino);
1111 "inode bitmap error for orphan %lu", ino);
1112 goto error; 1105 goto error;
1113 } 1106 }
1114 1107
@@ -1140,8 +1133,7 @@ iget_failed:
1140 err = PTR_ERR(inode); 1133 err = PTR_ERR(inode);
1141 inode = NULL; 1134 inode = NULL;
1142bad_orphan: 1135bad_orphan:
1143 ext4_warning(sb, __func__, 1136 ext4_warning(sb, "bad orphan inode %lu! e2fsck was run?", ino);
1144 "bad orphan inode %lu! e2fsck was run?", ino);
1145 printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n", 1137 printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n",
1146 bit, (unsigned long long)bitmap_bh->b_blocknr, 1138 bit, (unsigned long long)bitmap_bh->b_blocknr,
1147 ext4_test_bit(bit, bitmap_bh->b_data)); 1139 ext4_test_bit(bit, bitmap_bh->b_data));
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e11952404e02..f977aade0d1b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -38,6 +38,7 @@
38#include <linux/uio.h> 38#include <linux/uio.h>
39#include <linux/bio.h> 39#include <linux/bio.h>
40#include <linux/workqueue.h> 40#include <linux/workqueue.h>
41#include <linux/kernel.h>
41 42
42#include "ext4_jbd2.h" 43#include "ext4_jbd2.h"
43#include "xattr.h" 44#include "xattr.h"
@@ -194,7 +195,7 @@ void ext4_delete_inode(struct inode *inode)
194 inode->i_size = 0; 195 inode->i_size = 0;
195 err = ext4_mark_inode_dirty(handle, inode); 196 err = ext4_mark_inode_dirty(handle, inode);
196 if (err) { 197 if (err) {
197 ext4_warning(inode->i_sb, __func__, 198 ext4_warning(inode->i_sb,
198 "couldn't mark inode dirty (err %d)", err); 199 "couldn't mark inode dirty (err %d)", err);
199 goto stop_handle; 200 goto stop_handle;
200 } 201 }
@@ -212,7 +213,7 @@ void ext4_delete_inode(struct inode *inode)
212 if (err > 0) 213 if (err > 0)
213 err = ext4_journal_restart(handle, 3); 214 err = ext4_journal_restart(handle, 3);
214 if (err != 0) { 215 if (err != 0) {
215 ext4_warning(inode->i_sb, __func__, 216 ext4_warning(inode->i_sb,
216 "couldn't extend journal (err %d)", err); 217 "couldn't extend journal (err %d)", err);
217 stop_handle: 218 stop_handle:
218 ext4_journal_stop(handle); 219 ext4_journal_stop(handle);
@@ -323,8 +324,7 @@ static int ext4_block_to_path(struct inode *inode,
323 offsets[n++] = i_block & (ptrs - 1); 324 offsets[n++] = i_block & (ptrs - 1);
324 final = ptrs; 325 final = ptrs;
325 } else { 326 } else {
326 ext4_warning(inode->i_sb, "ext4_block_to_path", 327 ext4_warning(inode->i_sb, "block %lu > max in inode %lu",
327 "block %lu > max in inode %lu",
328 i_block + direct_blocks + 328 i_block + direct_blocks +
329 indirect_blocks + double_blocks, inode->i_ino); 329 indirect_blocks + double_blocks, inode->i_ino);
330 } 330 }
@@ -344,7 +344,7 @@ static int __ext4_check_blockref(const char *function, struct inode *inode,
344 if (blk && 344 if (blk &&
345 unlikely(!ext4_data_block_valid(EXT4_SB(inode->i_sb), 345 unlikely(!ext4_data_block_valid(EXT4_SB(inode->i_sb),
346 blk, 1))) { 346 blk, 1))) {
347 ext4_error(inode->i_sb, function, 347 __ext4_error(inode->i_sb, function,
348 "invalid block reference %u " 348 "invalid block reference %u "
349 "in inode #%lu", blk, inode->i_ino); 349 "in inode #%lu", blk, inode->i_ino);
350 return -EIO; 350 return -EIO;
@@ -607,7 +607,14 @@ static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
607 if (*err) 607 if (*err)
608 goto failed_out; 608 goto failed_out;
609 609
610 BUG_ON(current_block + count > EXT4_MAX_BLOCK_FILE_PHYS); 610 if (unlikely(current_block + count > EXT4_MAX_BLOCK_FILE_PHYS)) {
611 EXT4_ERROR_INODE(inode,
612 "current_block %llu + count %lu > %d!",
613 current_block, count,
614 EXT4_MAX_BLOCK_FILE_PHYS);
615 *err = -EIO;
616 goto failed_out;
617 }
611 618
612 target -= count; 619 target -= count;
613 /* allocate blocks for indirect blocks */ 620 /* allocate blocks for indirect blocks */
@@ -643,7 +650,14 @@ static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
643 ar.flags = EXT4_MB_HINT_DATA; 650 ar.flags = EXT4_MB_HINT_DATA;
644 651
645 current_block = ext4_mb_new_blocks(handle, &ar, err); 652 current_block = ext4_mb_new_blocks(handle, &ar, err);
646 BUG_ON(current_block + ar.len > EXT4_MAX_BLOCK_FILE_PHYS); 653 if (unlikely(current_block + ar.len > EXT4_MAX_BLOCK_FILE_PHYS)) {
654 EXT4_ERROR_INODE(inode,
655 "current_block %llu + ar.len %d > %d!",
656 current_block, ar.len,
657 EXT4_MAX_BLOCK_FILE_PHYS);
658 *err = -EIO;
659 goto failed_out;
660 }
647 661
648 if (*err && (target == blks)) { 662 if (*err && (target == blks)) {
649 /* 663 /*
@@ -1061,6 +1075,7 @@ void ext4_da_update_reserve_space(struct inode *inode,
1061 int mdb_free = 0, allocated_meta_blocks = 0; 1075 int mdb_free = 0, allocated_meta_blocks = 0;
1062 1076
1063 spin_lock(&ei->i_block_reservation_lock); 1077 spin_lock(&ei->i_block_reservation_lock);
1078 trace_ext4_da_update_reserve_space(inode, used);
1064 if (unlikely(used > ei->i_reserved_data_blocks)) { 1079 if (unlikely(used > ei->i_reserved_data_blocks)) {
1065 ext4_msg(inode->i_sb, KERN_NOTICE, "%s: ino %lu, used %d " 1080 ext4_msg(inode->i_sb, KERN_NOTICE, "%s: ino %lu, used %d "
1066 "with only %d reserved data blocks\n", 1081 "with only %d reserved data blocks\n",
@@ -1124,7 +1139,7 @@ static int check_block_validity(struct inode *inode, const char *msg,
1124 sector_t logical, sector_t phys, int len) 1139 sector_t logical, sector_t phys, int len)
1125{ 1140{
1126 if (!ext4_data_block_valid(EXT4_SB(inode->i_sb), phys, len)) { 1141 if (!ext4_data_block_valid(EXT4_SB(inode->i_sb), phys, len)) {
1127 ext4_error(inode->i_sb, msg, 1142 __ext4_error(inode->i_sb, msg,
1128 "inode #%lu logical block %llu mapped to %llu " 1143 "inode #%lu logical block %llu mapped to %llu "
1129 "(size %d)", inode->i_ino, 1144 "(size %d)", inode->i_ino,
1130 (unsigned long long) logical, 1145 (unsigned long long) logical,
@@ -1306,7 +1321,7 @@ int ext4_get_blocks(handle_t *handle, struct inode *inode, sector_t block,
1306 * i_data's format changing. Force the migrate 1321 * i_data's format changing. Force the migrate
1307 * to fail by clearing migrate flags 1322 * to fail by clearing migrate flags
1308 */ 1323 */
1309 EXT4_I(inode)->i_state &= ~EXT4_STATE_EXT_MIGRATE; 1324 ext4_clear_inode_state(inode, EXT4_STATE_EXT_MIGRATE);
1310 } 1325 }
1311 1326
1312 /* 1327 /*
@@ -1534,6 +1549,8 @@ static void ext4_truncate_failed_write(struct inode *inode)
1534 ext4_truncate(inode); 1549 ext4_truncate(inode);
1535} 1550}
1536 1551
1552static int ext4_get_block_write(struct inode *inode, sector_t iblock,
1553 struct buffer_head *bh_result, int create);
1537static int ext4_write_begin(struct file *file, struct address_space *mapping, 1554static int ext4_write_begin(struct file *file, struct address_space *mapping,
1538 loff_t pos, unsigned len, unsigned flags, 1555 loff_t pos, unsigned len, unsigned flags,
1539 struct page **pagep, void **fsdata) 1556 struct page **pagep, void **fsdata)
@@ -1575,8 +1592,12 @@ retry:
1575 } 1592 }
1576 *pagep = page; 1593 *pagep = page;
1577 1594
1578 ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, 1595 if (ext4_should_dioread_nolock(inode))
1579 ext4_get_block); 1596 ret = block_write_begin(file, mapping, pos, len, flags, pagep,
1597 fsdata, ext4_get_block_write);
1598 else
1599 ret = block_write_begin(file, mapping, pos, len, flags, pagep,
1600 fsdata, ext4_get_block);
1580 1601
1581 if (!ret && ext4_should_journal_data(inode)) { 1602 if (!ret && ext4_should_journal_data(inode)) {
1582 ret = walk_page_buffers(handle, page_buffers(page), 1603 ret = walk_page_buffers(handle, page_buffers(page),
@@ -1793,7 +1814,7 @@ static int ext4_journalled_write_end(struct file *file,
1793 new_i_size = pos + copied; 1814 new_i_size = pos + copied;
1794 if (new_i_size > inode->i_size) 1815 if (new_i_size > inode->i_size)
1795 i_size_write(inode, pos+copied); 1816 i_size_write(inode, pos+copied);
1796 EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; 1817 ext4_set_inode_state(inode, EXT4_STATE_JDATA);
1797 if (new_i_size > EXT4_I(inode)->i_disksize) { 1818 if (new_i_size > EXT4_I(inode)->i_disksize) {
1798 ext4_update_i_disksize(inode, new_i_size); 1819 ext4_update_i_disksize(inode, new_i_size);
1799 ret2 = ext4_mark_inode_dirty(handle, inode); 1820 ret2 = ext4_mark_inode_dirty(handle, inode);
@@ -1846,6 +1867,7 @@ repeat:
1846 spin_lock(&ei->i_block_reservation_lock); 1867 spin_lock(&ei->i_block_reservation_lock);
1847 md_reserved = ei->i_reserved_meta_blocks; 1868 md_reserved = ei->i_reserved_meta_blocks;
1848 md_needed = ext4_calc_metadata_amount(inode, lblock); 1869 md_needed = ext4_calc_metadata_amount(inode, lblock);
1870 trace_ext4_da_reserve_space(inode, md_needed);
1849 spin_unlock(&ei->i_block_reservation_lock); 1871 spin_unlock(&ei->i_block_reservation_lock);
1850 1872
1851 /* 1873 /*
@@ -2091,6 +2113,8 @@ static void mpage_put_bnr_to_bhs(struct mpage_da_data *mpd, sector_t logical,
2091 } else if (buffer_mapped(bh)) 2113 } else if (buffer_mapped(bh))
2092 BUG_ON(bh->b_blocknr != pblock); 2114 BUG_ON(bh->b_blocknr != pblock);
2093 2115
2116 if (buffer_uninit(exbh))
2117 set_buffer_uninit(bh);
2094 cur_logical++; 2118 cur_logical++;
2095 pblock++; 2119 pblock++;
2096 } while ((bh = bh->b_this_page) != head); 2120 } while ((bh = bh->b_this_page) != head);
@@ -2133,17 +2157,16 @@ static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd,
2133 break; 2157 break;
2134 for (i = 0; i < nr_pages; i++) { 2158 for (i = 0; i < nr_pages; i++) {
2135 struct page *page = pvec.pages[i]; 2159 struct page *page = pvec.pages[i];
2136 index = page->index; 2160 if (page->index > end)
2137 if (index > end)
2138 break; 2161 break;
2139 index++;
2140
2141 BUG_ON(!PageLocked(page)); 2162 BUG_ON(!PageLocked(page));
2142 BUG_ON(PageWriteback(page)); 2163 BUG_ON(PageWriteback(page));
2143 block_invalidatepage(page, 0); 2164 block_invalidatepage(page, 0);
2144 ClearPageUptodate(page); 2165 ClearPageUptodate(page);
2145 unlock_page(page); 2166 unlock_page(page);
2146 } 2167 }
2168 index = pvec.pages[nr_pages - 1]->index + 1;
2169 pagevec_release(&pvec);
2147 } 2170 }
2148 return; 2171 return;
2149} 2172}
@@ -2220,6 +2243,8 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
2220 */ 2243 */
2221 new.b_state = 0; 2244 new.b_state = 0;
2222 get_blocks_flags = EXT4_GET_BLOCKS_CREATE; 2245 get_blocks_flags = EXT4_GET_BLOCKS_CREATE;
2246 if (ext4_should_dioread_nolock(mpd->inode))
2247 get_blocks_flags |= EXT4_GET_BLOCKS_IO_CREATE_EXT;
2223 if (mpd->b_state & (1 << BH_Delay)) 2248 if (mpd->b_state & (1 << BH_Delay))
2224 get_blocks_flags |= EXT4_GET_BLOCKS_DELALLOC_RESERVE; 2249 get_blocks_flags |= EXT4_GET_BLOCKS_DELALLOC_RESERVE;
2225 2250
@@ -2630,11 +2655,14 @@ static int __ext4_journalled_writepage(struct page *page,
2630 ret = err; 2655 ret = err;
2631 2656
2632 walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one); 2657 walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one);
2633 EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; 2658 ext4_set_inode_state(inode, EXT4_STATE_JDATA);
2634out: 2659out:
2635 return ret; 2660 return ret;
2636} 2661}
2637 2662
2663static int ext4_set_bh_endio(struct buffer_head *bh, struct inode *inode);
2664static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate);
2665
2638/* 2666/*
2639 * Note that we don't need to start a transaction unless we're journaling data 2667 * Note that we don't need to start a transaction unless we're journaling data
2640 * because we should have holes filled from ext4_page_mkwrite(). We even don't 2668 * because we should have holes filled from ext4_page_mkwrite(). We even don't
@@ -2682,7 +2710,7 @@ static int ext4_writepage(struct page *page,
2682 int ret = 0; 2710 int ret = 0;
2683 loff_t size; 2711 loff_t size;
2684 unsigned int len; 2712 unsigned int len;
2685 struct buffer_head *page_bufs; 2713 struct buffer_head *page_bufs = NULL;
2686 struct inode *inode = page->mapping->host; 2714 struct inode *inode = page->mapping->host;
2687 2715
2688 trace_ext4_writepage(inode, page); 2716 trace_ext4_writepage(inode, page);
@@ -2758,7 +2786,11 @@ static int ext4_writepage(struct page *page,
2758 2786
2759 if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) 2787 if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
2760 ret = nobh_writepage(page, noalloc_get_block_write, wbc); 2788 ret = nobh_writepage(page, noalloc_get_block_write, wbc);
2761 else 2789 else if (page_bufs && buffer_uninit(page_bufs)) {
2790 ext4_set_bh_endio(page_bufs, inode);
2791 ret = block_write_full_page_endio(page, noalloc_get_block_write,
2792 wbc, ext4_end_io_buffer_write);
2793 } else
2762 ret = block_write_full_page(page, noalloc_get_block_write, 2794 ret = block_write_full_page(page, noalloc_get_block_write,
2763 wbc); 2795 wbc);
2764 2796
@@ -3301,7 +3333,8 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
3301 filemap_write_and_wait(mapping); 3333 filemap_write_and_wait(mapping);
3302 } 3334 }
3303 3335
3304 if (EXT4_JOURNAL(inode) && EXT4_I(inode)->i_state & EXT4_STATE_JDATA) { 3336 if (EXT4_JOURNAL(inode) &&
3337 ext4_test_inode_state(inode, EXT4_STATE_JDATA)) {
3305 /* 3338 /*
3306 * This is a REALLY heavyweight approach, but the use of 3339 * This is a REALLY heavyweight approach, but the use of
3307 * bmap on dirty files is expected to be extremely rare: 3340 * bmap on dirty files is expected to be extremely rare:
@@ -3320,7 +3353,7 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
3320 * everything they get. 3353 * everything they get.
3321 */ 3354 */
3322 3355
3323 EXT4_I(inode)->i_state &= ~EXT4_STATE_JDATA; 3356 ext4_clear_inode_state(inode, EXT4_STATE_JDATA);
3324 journal = EXT4_JOURNAL(inode); 3357 journal = EXT4_JOURNAL(inode);
3325 jbd2_journal_lock_updates(journal); 3358 jbd2_journal_lock_updates(journal);
3326 err = jbd2_journal_flush(journal); 3359 err = jbd2_journal_flush(journal);
@@ -3345,11 +3378,45 @@ ext4_readpages(struct file *file, struct address_space *mapping,
3345 return mpage_readpages(mapping, pages, nr_pages, ext4_get_block); 3378 return mpage_readpages(mapping, pages, nr_pages, ext4_get_block);
3346} 3379}
3347 3380
3381static void ext4_free_io_end(ext4_io_end_t *io)
3382{
3383 BUG_ON(!io);
3384 if (io->page)
3385 put_page(io->page);
3386 iput(io->inode);
3387 kfree(io);
3388}
3389
3390static void ext4_invalidatepage_free_endio(struct page *page, unsigned long offset)
3391{
3392 struct buffer_head *head, *bh;
3393 unsigned int curr_off = 0;
3394
3395 if (!page_has_buffers(page))
3396 return;
3397 head = bh = page_buffers(page);
3398 do {
3399 if (offset <= curr_off && test_clear_buffer_uninit(bh)
3400 && bh->b_private) {
3401 ext4_free_io_end(bh->b_private);
3402 bh->b_private = NULL;
3403 bh->b_end_io = NULL;
3404 }
3405 curr_off = curr_off + bh->b_size;
3406 bh = bh->b_this_page;
3407 } while (bh != head);
3408}
3409
3348static void ext4_invalidatepage(struct page *page, unsigned long offset) 3410static void ext4_invalidatepage(struct page *page, unsigned long offset)
3349{ 3411{
3350 journal_t *journal = EXT4_JOURNAL(page->mapping->host); 3412 journal_t *journal = EXT4_JOURNAL(page->mapping->host);
3351 3413
3352 /* 3414 /*
3415 * free any io_end structure allocated for buffers to be discarded
3416 */
3417 if (ext4_should_dioread_nolock(page->mapping->host))
3418 ext4_invalidatepage_free_endio(page, offset);
3419 /*
3353 * If it's a full truncate we just forget about the pending dirtying 3420 * If it's a full truncate we just forget about the pending dirtying
3354 */ 3421 */
3355 if (offset == 0) 3422 if (offset == 0)
@@ -3420,7 +3487,14 @@ static ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb,
3420 } 3487 }
3421 3488
3422retry: 3489retry:
3423 ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, 3490 if (rw == READ && ext4_should_dioread_nolock(inode))
3491 ret = blockdev_direct_IO_no_locking(rw, iocb, inode,
3492 inode->i_sb->s_bdev, iov,
3493 offset, nr_segs,
3494 ext4_get_block, NULL);
3495 else
3496 ret = blockdev_direct_IO(rw, iocb, inode,
3497 inode->i_sb->s_bdev, iov,
3424 offset, nr_segs, 3498 offset, nr_segs,
3425 ext4_get_block, NULL); 3499 ext4_get_block, NULL);
3426 if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) 3500 if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
@@ -3436,6 +3510,9 @@ retry:
3436 * but cannot extend i_size. Bail out and pretend 3510 * but cannot extend i_size. Bail out and pretend
3437 * the write failed... */ 3511 * the write failed... */
3438 ret = PTR_ERR(handle); 3512 ret = PTR_ERR(handle);
3513 if (inode->i_nlink)
3514 ext4_orphan_del(NULL, inode);
3515
3439 goto out; 3516 goto out;
3440 } 3517 }
3441 if (inode->i_nlink) 3518 if (inode->i_nlink)
@@ -3463,75 +3540,63 @@ out:
3463 return ret; 3540 return ret;
3464} 3541}
3465 3542
3466static int ext4_get_block_dio_write(struct inode *inode, sector_t iblock, 3543static int ext4_get_block_write(struct inode *inode, sector_t iblock,
3467 struct buffer_head *bh_result, int create) 3544 struct buffer_head *bh_result, int create)
3468{ 3545{
3469 handle_t *handle = NULL; 3546 handle_t *handle = ext4_journal_current_handle();
3470 int ret = 0; 3547 int ret = 0;
3471 unsigned max_blocks = bh_result->b_size >> inode->i_blkbits; 3548 unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
3472 int dio_credits; 3549 int dio_credits;
3550 int started = 0;
3473 3551
3474 ext4_debug("ext4_get_block_dio_write: inode %lu, create flag %d\n", 3552 ext4_debug("ext4_get_block_write: inode %lu, create flag %d\n",
3475 inode->i_ino, create); 3553 inode->i_ino, create);
3476 /* 3554 /*
3477 * DIO VFS code passes create = 0 flag for write to 3555 * ext4_get_block in prepare for a DIO write or buffer write.
3478 * the middle of file. It does this to avoid block 3556 * We allocate an uinitialized extent if blocks haven't been allocated.
3479 * allocation for holes, to prevent expose stale data 3557 * The extent will be converted to initialized after IO complete.
3480 * out when there is parallel buffered read (which does
3481 * not hold the i_mutex lock) while direct IO write has
3482 * not completed. DIO request on holes finally falls back
3483 * to buffered IO for this reason.
3484 *
3485 * For ext4 extent based file, since we support fallocate,
3486 * new allocated extent as uninitialized, for holes, we
3487 * could fallocate blocks for holes, thus parallel
3488 * buffered IO read will zero out the page when read on
3489 * a hole while parallel DIO write to the hole has not completed.
3490 *
3491 * when we come here, we know it's a direct IO write to
3492 * to the middle of file (<i_size)
3493 * so it's safe to override the create flag from VFS.
3494 */ 3558 */
3495 create = EXT4_GET_BLOCKS_DIO_CREATE_EXT; 3559 create = EXT4_GET_BLOCKS_IO_CREATE_EXT;
3496 3560
3497 if (max_blocks > DIO_MAX_BLOCKS) 3561 if (!handle) {
3498 max_blocks = DIO_MAX_BLOCKS; 3562 if (max_blocks > DIO_MAX_BLOCKS)
3499 dio_credits = ext4_chunk_trans_blocks(inode, max_blocks); 3563 max_blocks = DIO_MAX_BLOCKS;
3500 handle = ext4_journal_start(inode, dio_credits); 3564 dio_credits = ext4_chunk_trans_blocks(inode, max_blocks);
3501 if (IS_ERR(handle)) { 3565 handle = ext4_journal_start(inode, dio_credits);
3502 ret = PTR_ERR(handle); 3566 if (IS_ERR(handle)) {
3503 goto out; 3567 ret = PTR_ERR(handle);
3568 goto out;
3569 }
3570 started = 1;
3504 } 3571 }
3572
3505 ret = ext4_get_blocks(handle, inode, iblock, max_blocks, bh_result, 3573 ret = ext4_get_blocks(handle, inode, iblock, max_blocks, bh_result,
3506 create); 3574 create);
3507 if (ret > 0) { 3575 if (ret > 0) {
3508 bh_result->b_size = (ret << inode->i_blkbits); 3576 bh_result->b_size = (ret << inode->i_blkbits);
3509 ret = 0; 3577 ret = 0;
3510 } 3578 }
3511 ext4_journal_stop(handle); 3579 if (started)
3580 ext4_journal_stop(handle);
3512out: 3581out:
3513 return ret; 3582 return ret;
3514} 3583}
3515 3584
3516static void ext4_free_io_end(ext4_io_end_t *io) 3585static void dump_completed_IO(struct inode * inode)
3517{
3518 BUG_ON(!io);
3519 iput(io->inode);
3520 kfree(io);
3521}
3522static void dump_aio_dio_list(struct inode * inode)
3523{ 3586{
3524#ifdef EXT4_DEBUG 3587#ifdef EXT4_DEBUG
3525 struct list_head *cur, *before, *after; 3588 struct list_head *cur, *before, *after;
3526 ext4_io_end_t *io, *io0, *io1; 3589 ext4_io_end_t *io, *io0, *io1;
3590 unsigned long flags;
3527 3591
3528 if (list_empty(&EXT4_I(inode)->i_aio_dio_complete_list)){ 3592 if (list_empty(&EXT4_I(inode)->i_completed_io_list)){
3529 ext4_debug("inode %lu aio dio list is empty\n", inode->i_ino); 3593 ext4_debug("inode %lu completed_io list is empty\n", inode->i_ino);
3530 return; 3594 return;
3531 } 3595 }
3532 3596
3533 ext4_debug("Dump inode %lu aio_dio_completed_IO list \n", inode->i_ino); 3597 ext4_debug("Dump inode %lu completed_io list \n", inode->i_ino);
3534 list_for_each_entry(io, &EXT4_I(inode)->i_aio_dio_complete_list, list){ 3598 spin_lock_irqsave(&EXT4_I(inode)->i_completed_io_lock, flags);
3599 list_for_each_entry(io, &EXT4_I(inode)->i_completed_io_list, list){
3535 cur = &io->list; 3600 cur = &io->list;
3536 before = cur->prev; 3601 before = cur->prev;
3537 io0 = container_of(before, ext4_io_end_t, list); 3602 io0 = container_of(before, ext4_io_end_t, list);
@@ -3541,32 +3606,31 @@ static void dump_aio_dio_list(struct inode * inode)
3541 ext4_debug("io 0x%p from inode %lu,prev 0x%p,next 0x%p\n", 3606 ext4_debug("io 0x%p from inode %lu,prev 0x%p,next 0x%p\n",
3542 io, inode->i_ino, io0, io1); 3607 io, inode->i_ino, io0, io1);
3543 } 3608 }
3609 spin_unlock_irqrestore(&EXT4_I(inode)->i_completed_io_lock, flags);
3544#endif 3610#endif
3545} 3611}
3546 3612
3547/* 3613/*
3548 * check a range of space and convert unwritten extents to written. 3614 * check a range of space and convert unwritten extents to written.
3549 */ 3615 */
3550static int ext4_end_aio_dio_nolock(ext4_io_end_t *io) 3616static int ext4_end_io_nolock(ext4_io_end_t *io)
3551{ 3617{
3552 struct inode *inode = io->inode; 3618 struct inode *inode = io->inode;
3553 loff_t offset = io->offset; 3619 loff_t offset = io->offset;
3554 size_t size = io->size; 3620 ssize_t size = io->size;
3555 int ret = 0; 3621 int ret = 0;
3556 3622
3557 ext4_debug("end_aio_dio_onlock: io 0x%p from inode %lu,list->next 0x%p," 3623 ext4_debug("ext4_end_io_nolock: io 0x%p from inode %lu,list->next 0x%p,"
3558 "list->prev 0x%p\n", 3624 "list->prev 0x%p\n",
3559 io, inode->i_ino, io->list.next, io->list.prev); 3625 io, inode->i_ino, io->list.next, io->list.prev);
3560 3626
3561 if (list_empty(&io->list)) 3627 if (list_empty(&io->list))
3562 return ret; 3628 return ret;
3563 3629
3564 if (io->flag != DIO_AIO_UNWRITTEN) 3630 if (io->flag != EXT4_IO_UNWRITTEN)
3565 return ret; 3631 return ret;
3566 3632
3567 if (offset + size <= i_size_read(inode)) 3633 ret = ext4_convert_unwritten_extents(inode, offset, size);
3568 ret = ext4_convert_unwritten_extents(inode, offset, size);
3569
3570 if (ret < 0) { 3634 if (ret < 0) {
3571 printk(KERN_EMERG "%s: failed to convert unwritten" 3635 printk(KERN_EMERG "%s: failed to convert unwritten"
3572 "extents to written extents, error is %d" 3636 "extents to written extents, error is %d"
@@ -3579,50 +3643,64 @@ static int ext4_end_aio_dio_nolock(ext4_io_end_t *io)
3579 io->flag = 0; 3643 io->flag = 0;
3580 return ret; 3644 return ret;
3581} 3645}
3646
3582/* 3647/*
3583 * work on completed aio dio IO, to convert unwritten extents to extents 3648 * work on completed aio dio IO, to convert unwritten extents to extents
3584 */ 3649 */
3585static void ext4_end_aio_dio_work(struct work_struct *work) 3650static void ext4_end_io_work(struct work_struct *work)
3586{ 3651{
3587 ext4_io_end_t *io = container_of(work, ext4_io_end_t, work); 3652 ext4_io_end_t *io = container_of(work, ext4_io_end_t, work);
3588 struct inode *inode = io->inode; 3653 struct inode *inode = io->inode;
3589 int ret = 0; 3654 struct ext4_inode_info *ei = EXT4_I(inode);
3655 unsigned long flags;
3656 int ret;
3590 3657
3591 mutex_lock(&inode->i_mutex); 3658 mutex_lock(&inode->i_mutex);
3592 ret = ext4_end_aio_dio_nolock(io); 3659 ret = ext4_end_io_nolock(io);
3593 if (ret >= 0) { 3660 if (ret < 0) {
3594 if (!list_empty(&io->list)) 3661 mutex_unlock(&inode->i_mutex);
3595 list_del_init(&io->list); 3662 return;
3596 ext4_free_io_end(io);
3597 } 3663 }
3664
3665 spin_lock_irqsave(&ei->i_completed_io_lock, flags);
3666 if (!list_empty(&io->list))
3667 list_del_init(&io->list);
3668 spin_unlock_irqrestore(&ei->i_completed_io_lock, flags);
3598 mutex_unlock(&inode->i_mutex); 3669 mutex_unlock(&inode->i_mutex);
3670 ext4_free_io_end(io);
3599} 3671}
3672
3600/* 3673/*
3601 * This function is called from ext4_sync_file(). 3674 * This function is called from ext4_sync_file().
3602 * 3675 *
3603 * When AIO DIO IO is completed, the work to convert unwritten 3676 * When IO is completed, the work to convert unwritten extents to
3604 * extents to written is queued on workqueue but may not get immediately 3677 * written is queued on workqueue but may not get immediately
3605 * scheduled. When fsync is called, we need to ensure the 3678 * scheduled. When fsync is called, we need to ensure the
3606 * conversion is complete before fsync returns. 3679 * conversion is complete before fsync returns.
3607 * The inode keeps track of a list of completed AIO from DIO path 3680 * The inode keeps track of a list of pending/completed IO that
3608 * that might needs to do the conversion. This function walks through 3681 * might needs to do the conversion. This function walks through
3609 * the list and convert the related unwritten extents to written. 3682 * the list and convert the related unwritten extents for completed IO
3683 * to written.
3684 * The function return the number of pending IOs on success.
3610 */ 3685 */
3611int flush_aio_dio_completed_IO(struct inode *inode) 3686int flush_completed_IO(struct inode *inode)
3612{ 3687{
3613 ext4_io_end_t *io; 3688 ext4_io_end_t *io;
3689 struct ext4_inode_info *ei = EXT4_I(inode);
3690 unsigned long flags;
3614 int ret = 0; 3691 int ret = 0;
3615 int ret2 = 0; 3692 int ret2 = 0;
3616 3693
3617 if (list_empty(&EXT4_I(inode)->i_aio_dio_complete_list)) 3694 if (list_empty(&ei->i_completed_io_list))
3618 return ret; 3695 return ret;
3619 3696
3620 dump_aio_dio_list(inode); 3697 dump_completed_IO(inode);
3621 while (!list_empty(&EXT4_I(inode)->i_aio_dio_complete_list)){ 3698 spin_lock_irqsave(&ei->i_completed_io_lock, flags);
3622 io = list_entry(EXT4_I(inode)->i_aio_dio_complete_list.next, 3699 while (!list_empty(&ei->i_completed_io_list)){
3700 io = list_entry(ei->i_completed_io_list.next,
3623 ext4_io_end_t, list); 3701 ext4_io_end_t, list);
3624 /* 3702 /*
3625 * Calling ext4_end_aio_dio_nolock() to convert completed 3703 * Calling ext4_end_io_nolock() to convert completed
3626 * IO to written. 3704 * IO to written.
3627 * 3705 *
3628 * When ext4_sync_file() is called, run_queue() may already 3706 * When ext4_sync_file() is called, run_queue() may already
@@ -3635,20 +3713,23 @@ int flush_aio_dio_completed_IO(struct inode *inode)
3635 * avoid double converting from both fsync and background work 3713 * avoid double converting from both fsync and background work
3636 * queue work. 3714 * queue work.
3637 */ 3715 */
3638 ret = ext4_end_aio_dio_nolock(io); 3716 spin_unlock_irqrestore(&ei->i_completed_io_lock, flags);
3717 ret = ext4_end_io_nolock(io);
3718 spin_lock_irqsave(&ei->i_completed_io_lock, flags);
3639 if (ret < 0) 3719 if (ret < 0)
3640 ret2 = ret; 3720 ret2 = ret;
3641 else 3721 else
3642 list_del_init(&io->list); 3722 list_del_init(&io->list);
3643 } 3723 }
3724 spin_unlock_irqrestore(&ei->i_completed_io_lock, flags);
3644 return (ret2 < 0) ? ret2 : 0; 3725 return (ret2 < 0) ? ret2 : 0;
3645} 3726}
3646 3727
3647static ext4_io_end_t *ext4_init_io_end (struct inode *inode) 3728static ext4_io_end_t *ext4_init_io_end (struct inode *inode, gfp_t flags)
3648{ 3729{
3649 ext4_io_end_t *io = NULL; 3730 ext4_io_end_t *io = NULL;
3650 3731
3651 io = kmalloc(sizeof(*io), GFP_NOFS); 3732 io = kmalloc(sizeof(*io), flags);
3652 3733
3653 if (io) { 3734 if (io) {
3654 igrab(inode); 3735 igrab(inode);
@@ -3656,8 +3737,8 @@ static ext4_io_end_t *ext4_init_io_end (struct inode *inode)
3656 io->flag = 0; 3737 io->flag = 0;
3657 io->offset = 0; 3738 io->offset = 0;
3658 io->size = 0; 3739 io->size = 0;
3659 io->error = 0; 3740 io->page = NULL;
3660 INIT_WORK(&io->work, ext4_end_aio_dio_work); 3741 INIT_WORK(&io->work, ext4_end_io_work);
3661 INIT_LIST_HEAD(&io->list); 3742 INIT_LIST_HEAD(&io->list);
3662 } 3743 }
3663 3744
@@ -3669,6 +3750,8 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
3669{ 3750{
3670 ext4_io_end_t *io_end = iocb->private; 3751 ext4_io_end_t *io_end = iocb->private;
3671 struct workqueue_struct *wq; 3752 struct workqueue_struct *wq;
3753 unsigned long flags;
3754 struct ext4_inode_info *ei;
3672 3755
3673 /* if not async direct IO or dio with 0 bytes write, just return */ 3756 /* if not async direct IO or dio with 0 bytes write, just return */
3674 if (!io_end || !size) 3757 if (!io_end || !size)
@@ -3680,7 +3763,7 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
3680 size); 3763 size);
3681 3764
3682 /* if not aio dio with unwritten extents, just free io and return */ 3765 /* if not aio dio with unwritten extents, just free io and return */
3683 if (io_end->flag != DIO_AIO_UNWRITTEN){ 3766 if (io_end->flag != EXT4_IO_UNWRITTEN){
3684 ext4_free_io_end(io_end); 3767 ext4_free_io_end(io_end);
3685 iocb->private = NULL; 3768 iocb->private = NULL;
3686 return; 3769 return;
@@ -3688,16 +3771,85 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
3688 3771
3689 io_end->offset = offset; 3772 io_end->offset = offset;
3690 io_end->size = size; 3773 io_end->size = size;
3774 io_end->flag = EXT4_IO_UNWRITTEN;
3691 wq = EXT4_SB(io_end->inode->i_sb)->dio_unwritten_wq; 3775 wq = EXT4_SB(io_end->inode->i_sb)->dio_unwritten_wq;
3692 3776
3693 /* queue the work to convert unwritten extents to written */ 3777 /* queue the work to convert unwritten extents to written */
3694 queue_work(wq, &io_end->work); 3778 queue_work(wq, &io_end->work);
3695 3779
3696 /* Add the io_end to per-inode completed aio dio list*/ 3780 /* Add the io_end to per-inode completed aio dio list*/
3697 list_add_tail(&io_end->list, 3781 ei = EXT4_I(io_end->inode);
3698 &EXT4_I(io_end->inode)->i_aio_dio_complete_list); 3782 spin_lock_irqsave(&ei->i_completed_io_lock, flags);
3783 list_add_tail(&io_end->list, &ei->i_completed_io_list);
3784 spin_unlock_irqrestore(&ei->i_completed_io_lock, flags);
3699 iocb->private = NULL; 3785 iocb->private = NULL;
3700} 3786}
3787
3788static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate)
3789{
3790 ext4_io_end_t *io_end = bh->b_private;
3791 struct workqueue_struct *wq;
3792 struct inode *inode;
3793 unsigned long flags;
3794
3795 if (!test_clear_buffer_uninit(bh) || !io_end)
3796 goto out;
3797
3798 if (!(io_end->inode->i_sb->s_flags & MS_ACTIVE)) {
3799 printk("sb umounted, discard end_io request for inode %lu\n",
3800 io_end->inode->i_ino);
3801 ext4_free_io_end(io_end);
3802 goto out;
3803 }
3804
3805 io_end->flag = EXT4_IO_UNWRITTEN;
3806 inode = io_end->inode;
3807
3808 /* Add the io_end to per-inode completed io list*/
3809 spin_lock_irqsave(&EXT4_I(inode)->i_completed_io_lock, flags);
3810 list_add_tail(&io_end->list, &EXT4_I(inode)->i_completed_io_list);
3811 spin_unlock_irqrestore(&EXT4_I(inode)->i_completed_io_lock, flags);
3812
3813 wq = EXT4_SB(inode->i_sb)->dio_unwritten_wq;
3814 /* queue the work to convert unwritten extents to written */
3815 queue_work(wq, &io_end->work);
3816out:
3817 bh->b_private = NULL;
3818 bh->b_end_io = NULL;
3819 clear_buffer_uninit(bh);
3820 end_buffer_async_write(bh, uptodate);
3821}
3822
3823static int ext4_set_bh_endio(struct buffer_head *bh, struct inode *inode)
3824{
3825 ext4_io_end_t *io_end;
3826 struct page *page = bh->b_page;
3827 loff_t offset = (sector_t)page->index << PAGE_CACHE_SHIFT;
3828 size_t size = bh->b_size;
3829
3830retry:
3831 io_end = ext4_init_io_end(inode, GFP_ATOMIC);
3832 if (!io_end) {
3833 if (printk_ratelimit())
3834 printk(KERN_WARNING "%s: allocation fail\n", __func__);
3835 schedule();
3836 goto retry;
3837 }
3838 io_end->offset = offset;
3839 io_end->size = size;
3840 /*
3841 * We need to hold a reference to the page to make sure it
3842 * doesn't get evicted before ext4_end_io_work() has a chance
3843 * to convert the extent from written to unwritten.
3844 */
3845 io_end->page = page;
3846 get_page(io_end->page);
3847
3848 bh->b_private = io_end;
3849 bh->b_end_io = ext4_end_io_buffer_write;
3850 return 0;
3851}
3852
3701/* 3853/*
3702 * For ext4 extent files, ext4 will do direct-io write to holes, 3854 * For ext4 extent files, ext4 will do direct-io write to holes,
3703 * preallocated extents, and those write extend the file, no need to 3855 * preallocated extents, and those write extend the file, no need to
@@ -3751,7 +3903,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
3751 iocb->private = NULL; 3903 iocb->private = NULL;
3752 EXT4_I(inode)->cur_aio_dio = NULL; 3904 EXT4_I(inode)->cur_aio_dio = NULL;
3753 if (!is_sync_kiocb(iocb)) { 3905 if (!is_sync_kiocb(iocb)) {
3754 iocb->private = ext4_init_io_end(inode); 3906 iocb->private = ext4_init_io_end(inode, GFP_NOFS);
3755 if (!iocb->private) 3907 if (!iocb->private)
3756 return -ENOMEM; 3908 return -ENOMEM;
3757 /* 3909 /*
@@ -3767,7 +3919,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
3767 ret = blockdev_direct_IO(rw, iocb, inode, 3919 ret = blockdev_direct_IO(rw, iocb, inode,
3768 inode->i_sb->s_bdev, iov, 3920 inode->i_sb->s_bdev, iov,
3769 offset, nr_segs, 3921 offset, nr_segs,
3770 ext4_get_block_dio_write, 3922 ext4_get_block_write,
3771 ext4_end_io_dio); 3923 ext4_end_io_dio);
3772 if (iocb->private) 3924 if (iocb->private)
3773 EXT4_I(inode)->cur_aio_dio = NULL; 3925 EXT4_I(inode)->cur_aio_dio = NULL;
@@ -3788,8 +3940,8 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
3788 if (ret != -EIOCBQUEUED && ret <= 0 && iocb->private) { 3940 if (ret != -EIOCBQUEUED && ret <= 0 && iocb->private) {
3789 ext4_free_io_end(iocb->private); 3941 ext4_free_io_end(iocb->private);
3790 iocb->private = NULL; 3942 iocb->private = NULL;
3791 } else if (ret > 0 && (EXT4_I(inode)->i_state & 3943 } else if (ret > 0 && ext4_test_inode_state(inode,
3792 EXT4_STATE_DIO_UNWRITTEN)) { 3944 EXT4_STATE_DIO_UNWRITTEN)) {
3793 int err; 3945 int err;
3794 /* 3946 /*
3795 * for non AIO case, since the IO is already 3947 * for non AIO case, since the IO is already
@@ -3799,7 +3951,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
3799 offset, ret); 3951 offset, ret);
3800 if (err < 0) 3952 if (err < 0)
3801 ret = err; 3953 ret = err;
3802 EXT4_I(inode)->i_state &= ~EXT4_STATE_DIO_UNWRITTEN; 3954 ext4_clear_inode_state(inode, EXT4_STATE_DIO_UNWRITTEN);
3803 } 3955 }
3804 return ret; 3956 return ret;
3805 } 3957 }
@@ -4130,18 +4282,27 @@ no_top:
4130 * We release `count' blocks on disk, but (last - first) may be greater 4282 * We release `count' blocks on disk, but (last - first) may be greater
4131 * than `count' because there can be holes in there. 4283 * than `count' because there can be holes in there.
4132 */ 4284 */
4133static void ext4_clear_blocks(handle_t *handle, struct inode *inode, 4285static int ext4_clear_blocks(handle_t *handle, struct inode *inode,
4134 struct buffer_head *bh, 4286 struct buffer_head *bh,
4135 ext4_fsblk_t block_to_free, 4287 ext4_fsblk_t block_to_free,
4136 unsigned long count, __le32 *first, 4288 unsigned long count, __le32 *first,
4137 __le32 *last) 4289 __le32 *last)
4138{ 4290{
4139 __le32 *p; 4291 __le32 *p;
4140 int flags = EXT4_FREE_BLOCKS_FORGET; 4292 int flags = EXT4_FREE_BLOCKS_FORGET | EXT4_FREE_BLOCKS_VALIDATED;
4141 4293
4142 if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) 4294 if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
4143 flags |= EXT4_FREE_BLOCKS_METADATA; 4295 flags |= EXT4_FREE_BLOCKS_METADATA;
4144 4296
4297 if (!ext4_data_block_valid(EXT4_SB(inode->i_sb), block_to_free,
4298 count)) {
4299 ext4_error(inode->i_sb, "inode #%lu: "
4300 "attempt to clear blocks %llu len %lu, invalid",
4301 inode->i_ino, (unsigned long long) block_to_free,
4302 count);
4303 return 1;
4304 }
4305
4145 if (try_to_extend_transaction(handle, inode)) { 4306 if (try_to_extend_transaction(handle, inode)) {
4146 if (bh) { 4307 if (bh) {
4147 BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata"); 4308 BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
@@ -4160,6 +4321,7 @@ static void ext4_clear_blocks(handle_t *handle, struct inode *inode,
4160 *p = 0; 4321 *p = 0;
4161 4322
4162 ext4_free_blocks(handle, inode, 0, block_to_free, count, flags); 4323 ext4_free_blocks(handle, inode, 0, block_to_free, count, flags);
4324 return 0;
4163} 4325}
4164 4326
4165/** 4327/**
@@ -4215,9 +4377,10 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
4215 } else if (nr == block_to_free + count) { 4377 } else if (nr == block_to_free + count) {
4216 count++; 4378 count++;
4217 } else { 4379 } else {
4218 ext4_clear_blocks(handle, inode, this_bh, 4380 if (ext4_clear_blocks(handle, inode, this_bh,
4219 block_to_free, 4381 block_to_free, count,
4220 count, block_to_free_p, p); 4382 block_to_free_p, p))
4383 break;
4221 block_to_free = nr; 4384 block_to_free = nr;
4222 block_to_free_p = p; 4385 block_to_free_p = p;
4223 count = 1; 4386 count = 1;
@@ -4241,7 +4404,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
4241 if ((EXT4_JOURNAL(inode) == NULL) || bh2jh(this_bh)) 4404 if ((EXT4_JOURNAL(inode) == NULL) || bh2jh(this_bh))
4242 ext4_handle_dirty_metadata(handle, inode, this_bh); 4405 ext4_handle_dirty_metadata(handle, inode, this_bh);
4243 else 4406 else
4244 ext4_error(inode->i_sb, __func__, 4407 ext4_error(inode->i_sb,
4245 "circular indirect block detected, " 4408 "circular indirect block detected, "
4246 "inode=%lu, block=%llu", 4409 "inode=%lu, block=%llu",
4247 inode->i_ino, 4410 inode->i_ino,
@@ -4281,6 +4444,16 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
4281 if (!nr) 4444 if (!nr)
4282 continue; /* A hole */ 4445 continue; /* A hole */
4283 4446
4447 if (!ext4_data_block_valid(EXT4_SB(inode->i_sb),
4448 nr, 1)) {
4449 ext4_error(inode->i_sb,
4450 "indirect mapped block in inode "
4451 "#%lu invalid (level %d, blk #%lu)",
4452 inode->i_ino, depth,
4453 (unsigned long) nr);
4454 break;
4455 }
4456
4284 /* Go read the buffer for the next level down */ 4457 /* Go read the buffer for the next level down */
4285 bh = sb_bread(inode->i_sb, nr); 4458 bh = sb_bread(inode->i_sb, nr);
4286 4459
@@ -4289,7 +4462,7 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
4289 * (should be rare). 4462 * (should be rare).
4290 */ 4463 */
4291 if (!bh) { 4464 if (!bh) {
4292 ext4_error(inode->i_sb, "ext4_free_branches", 4465 ext4_error(inode->i_sb,
4293 "Read failure, inode=%lu, block=%llu", 4466 "Read failure, inode=%lu, block=%llu",
4294 inode->i_ino, nr); 4467 inode->i_ino, nr);
4295 continue; 4468 continue;
@@ -4433,8 +4606,10 @@ void ext4_truncate(struct inode *inode)
4433 if (!ext4_can_truncate(inode)) 4606 if (!ext4_can_truncate(inode))
4434 return; 4607 return;
4435 4608
4609 EXT4_I(inode)->i_flags &= ~EXT4_EOFBLOCKS_FL;
4610
4436 if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC)) 4611 if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC))
4437 ei->i_state |= EXT4_STATE_DA_ALLOC_CLOSE; 4612 ext4_set_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE);
4438 4613
4439 if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) { 4614 if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
4440 ext4_ext_truncate(inode); 4615 ext4_ext_truncate(inode);
@@ -4604,9 +4779,8 @@ static int __ext4_get_inode_loc(struct inode *inode,
4604 4779
4605 bh = sb_getblk(sb, block); 4780 bh = sb_getblk(sb, block);
4606 if (!bh) { 4781 if (!bh) {
4607 ext4_error(sb, "ext4_get_inode_loc", "unable to read " 4782 ext4_error(sb, "unable to read inode block - "
4608 "inode block - inode=%lu, block=%llu", 4783 "inode=%lu, block=%llu", inode->i_ino, block);
4609 inode->i_ino, block);
4610 return -EIO; 4784 return -EIO;
4611 } 4785 }
4612 if (!buffer_uptodate(bh)) { 4786 if (!buffer_uptodate(bh)) {
@@ -4704,9 +4878,8 @@ make_io:
4704 submit_bh(READ_META, bh); 4878 submit_bh(READ_META, bh);
4705 wait_on_buffer(bh); 4879 wait_on_buffer(bh);
4706 if (!buffer_uptodate(bh)) { 4880 if (!buffer_uptodate(bh)) {
4707 ext4_error(sb, __func__, 4881 ext4_error(sb, "unable to read inode block - inode=%lu,"
4708 "unable to read inode block - inode=%lu, " 4882 " block=%llu", inode->i_ino, block);
4709 "block=%llu", inode->i_ino, block);
4710 brelse(bh); 4883 brelse(bh);
4711 return -EIO; 4884 return -EIO;
4712 } 4885 }
@@ -4720,7 +4893,7 @@ int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
4720{ 4893{
4721 /* We have all inode data except xattrs in memory here. */ 4894 /* We have all inode data except xattrs in memory here. */
4722 return __ext4_get_inode_loc(inode, iloc, 4895 return __ext4_get_inode_loc(inode, iloc,
4723 !(EXT4_I(inode)->i_state & EXT4_STATE_XATTR)); 4896 !ext4_test_inode_state(inode, EXT4_STATE_XATTR));
4724} 4897}
4725 4898
4726void ext4_set_inode_flags(struct inode *inode) 4899void ext4_set_inode_flags(struct inode *inode)
@@ -4814,7 +4987,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
4814 } 4987 }
4815 inode->i_nlink = le16_to_cpu(raw_inode->i_links_count); 4988 inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
4816 4989
4817 ei->i_state = 0; 4990 ei->i_state_flags = 0;
4818 ei->i_dir_start_lookup = 0; 4991 ei->i_dir_start_lookup = 0;
4819 ei->i_dtime = le32_to_cpu(raw_inode->i_dtime); 4992 ei->i_dtime = le32_to_cpu(raw_inode->i_dtime);
4820 /* We now have enough fields to check if the inode was active or not. 4993 /* We now have enough fields to check if the inode was active or not.
@@ -4897,7 +5070,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
4897 EXT4_GOOD_OLD_INODE_SIZE + 5070 EXT4_GOOD_OLD_INODE_SIZE +
4898 ei->i_extra_isize; 5071 ei->i_extra_isize;
4899 if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) 5072 if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC))
4900 ei->i_state |= EXT4_STATE_XATTR; 5073 ext4_set_inode_state(inode, EXT4_STATE_XATTR);
4901 } 5074 }
4902 } else 5075 } else
4903 ei->i_extra_isize = 0; 5076 ei->i_extra_isize = 0;
@@ -4917,8 +5090,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
4917 ret = 0; 5090 ret = 0;
4918 if (ei->i_file_acl && 5091 if (ei->i_file_acl &&
4919 !ext4_data_block_valid(EXT4_SB(sb), ei->i_file_acl, 1)) { 5092 !ext4_data_block_valid(EXT4_SB(sb), ei->i_file_acl, 1)) {
4920 ext4_error(sb, __func__, 5093 ext4_error(sb, "bad extended attribute block %llu inode #%lu",
4921 "bad extended attribute block %llu in inode #%lu",
4922 ei->i_file_acl, inode->i_ino); 5094 ei->i_file_acl, inode->i_ino);
4923 ret = -EIO; 5095 ret = -EIO;
4924 goto bad_inode; 5096 goto bad_inode;
@@ -4964,8 +5136,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
4964 new_decode_dev(le32_to_cpu(raw_inode->i_block[1]))); 5136 new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
4965 } else { 5137 } else {
4966 ret = -EIO; 5138 ret = -EIO;
4967 ext4_error(inode->i_sb, __func__, 5139 ext4_error(inode->i_sb, "bogus i_mode (%o) for inode=%lu",
4968 "bogus i_mode (%o) for inode=%lu",
4969 inode->i_mode, inode->i_ino); 5140 inode->i_mode, inode->i_ino);
4970 goto bad_inode; 5141 goto bad_inode;
4971 } 5142 }
@@ -5037,7 +5208,7 @@ static int ext4_do_update_inode(handle_t *handle,
5037 5208
5038 /* For fields not not tracking in the in-memory inode, 5209 /* For fields not not tracking in the in-memory inode,
5039 * initialise them to zero for new inodes. */ 5210 * initialise them to zero for new inodes. */
5040 if (ei->i_state & EXT4_STATE_NEW) 5211 if (ext4_test_inode_state(inode, EXT4_STATE_NEW))
5041 memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size); 5212 memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
5042 5213
5043 ext4_get_inode_flags(ei); 5214 ext4_get_inode_flags(ei);
@@ -5101,7 +5272,7 @@ static int ext4_do_update_inode(handle_t *handle,
5101 EXT4_FEATURE_RO_COMPAT_LARGE_FILE); 5272 EXT4_FEATURE_RO_COMPAT_LARGE_FILE);
5102 sb->s_dirt = 1; 5273 sb->s_dirt = 1;
5103 ext4_handle_sync(handle); 5274 ext4_handle_sync(handle);
5104 err = ext4_handle_dirty_metadata(handle, inode, 5275 err = ext4_handle_dirty_metadata(handle, NULL,
5105 EXT4_SB(sb)->s_sbh); 5276 EXT4_SB(sb)->s_sbh);
5106 } 5277 }
5107 } 5278 }
@@ -5130,10 +5301,10 @@ static int ext4_do_update_inode(handle_t *handle,
5130 } 5301 }
5131 5302
5132 BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata"); 5303 BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
5133 rc = ext4_handle_dirty_metadata(handle, inode, bh); 5304 rc = ext4_handle_dirty_metadata(handle, NULL, bh);
5134 if (!err) 5305 if (!err)
5135 err = rc; 5306 err = rc;
5136 ei->i_state &= ~EXT4_STATE_NEW; 5307 ext4_clear_inode_state(inode, EXT4_STATE_NEW);
5137 5308
5138 ext4_update_inode_fsync_trans(handle, inode, 0); 5309 ext4_update_inode_fsync_trans(handle, inode, 0);
5139out_brelse: 5310out_brelse:
@@ -5177,7 +5348,7 @@ out_brelse:
5177 * `stuff()' is running, and the new i_size will be lost. Plus the inode 5348 * `stuff()' is running, and the new i_size will be lost. Plus the inode
5178 * will no longer be on the superblock's dirty inode list. 5349 * will no longer be on the superblock's dirty inode list.
5179 */ 5350 */
5180int ext4_write_inode(struct inode *inode, int wait) 5351int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
5181{ 5352{
5182 int err; 5353 int err;
5183 5354
@@ -5191,7 +5362,7 @@ int ext4_write_inode(struct inode *inode, int wait)
5191 return -EIO; 5362 return -EIO;
5192 } 5363 }
5193 5364
5194 if (!wait) 5365 if (wbc->sync_mode != WB_SYNC_ALL)
5195 return 0; 5366 return 0;
5196 5367
5197 err = ext4_force_commit(inode->i_sb); 5368 err = ext4_force_commit(inode->i_sb);
@@ -5201,13 +5372,11 @@ int ext4_write_inode(struct inode *inode, int wait)
5201 err = ext4_get_inode_loc(inode, &iloc); 5372 err = ext4_get_inode_loc(inode, &iloc);
5202 if (err) 5373 if (err)
5203 return err; 5374 return err;
5204 if (wait) 5375 if (wbc->sync_mode == WB_SYNC_ALL)
5205 sync_dirty_buffer(iloc.bh); 5376 sync_dirty_buffer(iloc.bh);
5206 if (buffer_req(iloc.bh) && !buffer_uptodate(iloc.bh)) { 5377 if (buffer_req(iloc.bh) && !buffer_uptodate(iloc.bh)) {
5207 ext4_error(inode->i_sb, __func__, 5378 ext4_error(inode->i_sb, "IO error syncing inode, "
5208 "IO error syncing inode, " 5379 "inode=%lu, block=%llu", inode->i_ino,
5209 "inode=%lu, block=%llu",
5210 inode->i_ino,
5211 (unsigned long long)iloc.bh->b_blocknr); 5380 (unsigned long long)iloc.bh->b_blocknr);
5212 err = -EIO; 5381 err = -EIO;
5213 } 5382 }
@@ -5288,7 +5457,9 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
5288 } 5457 }
5289 5458
5290 if (S_ISREG(inode->i_mode) && 5459 if (S_ISREG(inode->i_mode) &&
5291 attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) { 5460 attr->ia_valid & ATTR_SIZE &&
5461 (attr->ia_size < inode->i_size ||
5462 (EXT4_I(inode)->i_flags & EXT4_EOFBLOCKS_FL))) {
5292 handle_t *handle; 5463 handle_t *handle;
5293 5464
5294 handle = ext4_journal_start(inode, 3); 5465 handle = ext4_journal_start(inode, 3);
@@ -5319,6 +5490,9 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
5319 goto err_out; 5490 goto err_out;
5320 } 5491 }
5321 } 5492 }
5493 /* ext4_truncate will clear the flag */
5494 if ((EXT4_I(inode)->i_flags & EXT4_EOFBLOCKS_FL))
5495 ext4_truncate(inode);
5322 } 5496 }
5323 5497
5324 rc = inode_setattr(inode, attr); 5498 rc = inode_setattr(inode, attr);
@@ -5557,8 +5731,8 @@ static int ext4_expand_extra_isize(struct inode *inode,
5557 entry = IFIRST(header); 5731 entry = IFIRST(header);
5558 5732
5559 /* No extended attributes present */ 5733 /* No extended attributes present */
5560 if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR) || 5734 if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) ||
5561 header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)) { 5735 header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)) {
5562 memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE, 0, 5736 memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE, 0,
5563 new_extra_isize); 5737 new_extra_isize);
5564 EXT4_I(inode)->i_extra_isize = new_extra_isize; 5738 EXT4_I(inode)->i_extra_isize = new_extra_isize;
@@ -5602,7 +5776,7 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
5602 err = ext4_reserve_inode_write(handle, inode, &iloc); 5776 err = ext4_reserve_inode_write(handle, inode, &iloc);
5603 if (ext4_handle_valid(handle) && 5777 if (ext4_handle_valid(handle) &&
5604 EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize && 5778 EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize &&
5605 !(EXT4_I(inode)->i_state & EXT4_STATE_NO_EXPAND)) { 5779 !ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND)) {
5606 /* 5780 /*
5607 * We need extra buffer credits since we may write into EA block 5781 * We need extra buffer credits since we may write into EA block
5608 * with this same handle. If journal_extend fails, then it will 5782 * with this same handle. If journal_extend fails, then it will
@@ -5616,10 +5790,11 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
5616 sbi->s_want_extra_isize, 5790 sbi->s_want_extra_isize,
5617 iloc, handle); 5791 iloc, handle);
5618 if (ret) { 5792 if (ret) {
5619 EXT4_I(inode)->i_state |= EXT4_STATE_NO_EXPAND; 5793 ext4_set_inode_state(inode,
5794 EXT4_STATE_NO_EXPAND);
5620 if (mnt_count != 5795 if (mnt_count !=
5621 le16_to_cpu(sbi->s_es->s_mnt_count)) { 5796 le16_to_cpu(sbi->s_es->s_mnt_count)) {
5622 ext4_warning(inode->i_sb, __func__, 5797 ext4_warning(inode->i_sb,
5623 "Unable to expand inode %lu. Delete" 5798 "Unable to expand inode %lu. Delete"
5624 " some EAs or run e2fsck.", 5799 " some EAs or run e2fsck.",
5625 inode->i_ino); 5800 inode->i_ino);
@@ -5683,7 +5858,7 @@ static int ext4_pin_inode(handle_t *handle, struct inode *inode)
5683 err = jbd2_journal_get_write_access(handle, iloc.bh); 5858 err = jbd2_journal_get_write_access(handle, iloc.bh);
5684 if (!err) 5859 if (!err)
5685 err = ext4_handle_dirty_metadata(handle, 5860 err = ext4_handle_dirty_metadata(handle,
5686 inode, 5861 NULL,
5687 iloc.bh); 5862 iloc.bh);
5688 brelse(iloc.bh); 5863 brelse(iloc.bh);
5689 } 5864 }
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index b63d193126db..016d0249294f 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -92,6 +92,15 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
92 flags &= ~EXT4_EXTENTS_FL; 92 flags &= ~EXT4_EXTENTS_FL;
93 } 93 }
94 94
95 if (flags & EXT4_EOFBLOCKS_FL) {
96 /* we don't support adding EOFBLOCKS flag */
97 if (!(oldflags & EXT4_EOFBLOCKS_FL)) {
98 err = -EOPNOTSUPP;
99 goto flags_out;
100 }
101 } else if (oldflags & EXT4_EOFBLOCKS_FL)
102 ext4_truncate(inode);
103
95 handle = ext4_journal_start(inode, 1); 104 handle = ext4_journal_start(inode, 1);
96 if (IS_ERR(handle)) { 105 if (IS_ERR(handle)) {
97 err = PTR_ERR(handle); 106 err = PTR_ERR(handle);
@@ -249,7 +258,8 @@ setversion_out:
249 if (me.moved_len > 0) 258 if (me.moved_len > 0)
250 file_remove_suid(donor_filp); 259 file_remove_suid(donor_filp);
251 260
252 if (copy_to_user((struct move_extent *)arg, &me, sizeof(me))) 261 if (copy_to_user((struct move_extent __user *)arg,
262 &me, sizeof(me)))
253 err = -EFAULT; 263 err = -EFAULT;
254mext_out: 264mext_out:
255 fput(donor_filp); 265 fput(donor_filp);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d34afad3e137..abb11e328b65 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -441,10 +441,9 @@ static void mb_free_blocks_double(struct inode *inode, struct ext4_buddy *e4b,
441 for (i = 0; i < count; i++) { 441 for (i = 0; i < count; i++) {
442 if (!mb_test_bit(first + i, e4b->bd_info->bb_bitmap)) { 442 if (!mb_test_bit(first + i, e4b->bd_info->bb_bitmap)) {
443 ext4_fsblk_t blocknr; 443 ext4_fsblk_t blocknr;
444 blocknr = e4b->bd_group * EXT4_BLOCKS_PER_GROUP(sb); 444
445 blocknr = ext4_group_first_block_no(sb, e4b->bd_group);
445 blocknr += first + i; 446 blocknr += first + i;
446 blocknr +=
447 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
448 ext4_grp_locked_error(sb, e4b->bd_group, 447 ext4_grp_locked_error(sb, e4b->bd_group,
449 __func__, "double-free of inode" 448 __func__, "double-free of inode"
450 " %lu's block %llu(bit %u in group %u)", 449 " %lu's block %llu(bit %u in group %u)",
@@ -1255,10 +1254,9 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
1255 1254
1256 if (!mb_test_bit(block, EXT4_MB_BITMAP(e4b))) { 1255 if (!mb_test_bit(block, EXT4_MB_BITMAP(e4b))) {
1257 ext4_fsblk_t blocknr; 1256 ext4_fsblk_t blocknr;
1258 blocknr = e4b->bd_group * EXT4_BLOCKS_PER_GROUP(sb); 1257
1258 blocknr = ext4_group_first_block_no(sb, e4b->bd_group);
1259 blocknr += block; 1259 blocknr += block;
1260 blocknr +=
1261 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
1262 ext4_grp_locked_error(sb, e4b->bd_group, 1260 ext4_grp_locked_error(sb, e4b->bd_group,
1263 __func__, "double-free of inode" 1261 __func__, "double-free of inode"
1264 " %lu's block %llu(bit %u in group %u)", 1262 " %lu's block %llu(bit %u in group %u)",
@@ -1631,7 +1629,6 @@ int ext4_mb_find_by_goal(struct ext4_allocation_context *ac,
1631 int max; 1629 int max;
1632 int err; 1630 int err;
1633 struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb); 1631 struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
1634 struct ext4_super_block *es = sbi->s_es;
1635 struct ext4_free_extent ex; 1632 struct ext4_free_extent ex;
1636 1633
1637 if (!(ac->ac_flags & EXT4_MB_HINT_TRY_GOAL)) 1634 if (!(ac->ac_flags & EXT4_MB_HINT_TRY_GOAL))
@@ -1648,8 +1645,8 @@ int ext4_mb_find_by_goal(struct ext4_allocation_context *ac,
1648 if (max >= ac->ac_g_ex.fe_len && ac->ac_g_ex.fe_len == sbi->s_stripe) { 1645 if (max >= ac->ac_g_ex.fe_len && ac->ac_g_ex.fe_len == sbi->s_stripe) {
1649 ext4_fsblk_t start; 1646 ext4_fsblk_t start;
1650 1647
1651 start = (e4b->bd_group * EXT4_BLOCKS_PER_GROUP(ac->ac_sb)) + 1648 start = ext4_group_first_block_no(ac->ac_sb, e4b->bd_group) +
1652 ex.fe_start + le32_to_cpu(es->s_first_data_block); 1649 ex.fe_start;
1653 /* use do_div to get remainder (would be 64-bit modulo) */ 1650 /* use do_div to get remainder (would be 64-bit modulo) */
1654 if (do_div(start, sbi->s_stripe) == 0) { 1651 if (do_div(start, sbi->s_stripe) == 0) {
1655 ac->ac_found++; 1652 ac->ac_found++;
@@ -1803,8 +1800,8 @@ void ext4_mb_scan_aligned(struct ext4_allocation_context *ac,
1803 BUG_ON(sbi->s_stripe == 0); 1800 BUG_ON(sbi->s_stripe == 0);
1804 1801
1805 /* find first stripe-aligned block in group */ 1802 /* find first stripe-aligned block in group */
1806 first_group_block = e4b->bd_group * EXT4_BLOCKS_PER_GROUP(sb) 1803 first_group_block = ext4_group_first_block_no(sb, e4b->bd_group);
1807 + le32_to_cpu(sbi->s_es->s_first_data_block); 1804
1808 a = first_group_block + sbi->s_stripe - 1; 1805 a = first_group_block + sbi->s_stripe - 1;
1809 do_div(a, sbi->s_stripe); 1806 do_div(a, sbi->s_stripe);
1810 i = (a * sbi->s_stripe) - first_group_block; 1807 i = (a * sbi->s_stripe) - first_group_block;
@@ -2256,7 +2253,7 @@ int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
2256 2253
2257 INIT_LIST_HEAD(&meta_group_info[i]->bb_prealloc_list); 2254 INIT_LIST_HEAD(&meta_group_info[i]->bb_prealloc_list);
2258 init_rwsem(&meta_group_info[i]->alloc_sem); 2255 init_rwsem(&meta_group_info[i]->alloc_sem);
2259 meta_group_info[i]->bb_free_root.rb_node = NULL; 2256 meta_group_info[i]->bb_free_root = RB_ROOT;
2260 2257
2261#ifdef DOUBLE_CHECK 2258#ifdef DOUBLE_CHECK
2262 { 2259 {
@@ -2560,12 +2557,9 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
2560 ext4_unlock_group(sb, entry->group); 2557 ext4_unlock_group(sb, entry->group);
2561 if (test_opt(sb, DISCARD)) { 2558 if (test_opt(sb, DISCARD)) {
2562 ext4_fsblk_t discard_block; 2559 ext4_fsblk_t discard_block;
2563 struct ext4_super_block *es = EXT4_SB(sb)->s_es;
2564 2560
2565 discard_block = (ext4_fsblk_t)entry->group * 2561 discard_block = entry->start_blk +
2566 EXT4_BLOCKS_PER_GROUP(sb) 2562 ext4_group_first_block_no(sb, entry->group);
2567 + entry->start_blk
2568 + le32_to_cpu(es->s_first_data_block);
2569 trace_ext4_discard_blocks(sb, 2563 trace_ext4_discard_blocks(sb,
2570 (unsigned long long)discard_block, 2564 (unsigned long long)discard_block,
2571 entry->count); 2565 entry->count);
@@ -2703,14 +2697,11 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
2703 if (err) 2697 if (err)
2704 goto out_err; 2698 goto out_err;
2705 2699
2706 block = ac->ac_b_ex.fe_group * EXT4_BLOCKS_PER_GROUP(sb) 2700 block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
2707 + ac->ac_b_ex.fe_start
2708 + le32_to_cpu(es->s_first_data_block);
2709 2701
2710 len = ac->ac_b_ex.fe_len; 2702 len = ac->ac_b_ex.fe_len;
2711 if (!ext4_data_block_valid(sbi, block, len)) { 2703 if (!ext4_data_block_valid(sbi, block, len)) {
2712 ext4_error(sb, __func__, 2704 ext4_error(sb, "Allocating blocks %llu-%llu which overlap "
2713 "Allocating blocks %llu-%llu which overlap "
2714 "fs metadata\n", block, block+len); 2705 "fs metadata\n", block, block+len);
2715 /* File system mounted not to panic on error 2706 /* File system mounted not to panic on error
2716 * Fix the bitmap and repeat the block allocation 2707 * Fix the bitmap and repeat the block allocation
@@ -3161,9 +3152,7 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
3161 /* The max size of hash table is PREALLOC_TB_SIZE */ 3152 /* The max size of hash table is PREALLOC_TB_SIZE */
3162 order = PREALLOC_TB_SIZE - 1; 3153 order = PREALLOC_TB_SIZE - 1;
3163 3154
3164 goal_block = ac->ac_g_ex.fe_group * EXT4_BLOCKS_PER_GROUP(ac->ac_sb) + 3155 goal_block = ext4_grp_offs_to_block(ac->ac_sb, &ac->ac_g_ex);
3165 ac->ac_g_ex.fe_start +
3166 le32_to_cpu(EXT4_SB(ac->ac_sb)->s_es->s_first_data_block);
3167 /* 3156 /*
3168 * search for the prealloc space that is having 3157 * search for the prealloc space that is having
3169 * minimal distance from the goal block. 3158 * minimal distance from the goal block.
@@ -3526,8 +3515,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
3526 if (bit >= end) 3515 if (bit >= end)
3527 break; 3516 break;
3528 next = mb_find_next_bit(bitmap_bh->b_data, end, bit); 3517 next = mb_find_next_bit(bitmap_bh->b_data, end, bit);
3529 start = group * EXT4_BLOCKS_PER_GROUP(sb) + bit + 3518 start = ext4_group_first_block_no(sb, group) + bit;
3530 le32_to_cpu(sbi->s_es->s_first_data_block);
3531 mb_debug(1, " free preallocated %u/%u in group %u\n", 3519 mb_debug(1, " free preallocated %u/%u in group %u\n",
3532 (unsigned) start, (unsigned) next - bit, 3520 (unsigned) start, (unsigned) next - bit,
3533 (unsigned) group); 3521 (unsigned) group);
@@ -3623,15 +3611,13 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
3623 3611
3624 bitmap_bh = ext4_read_block_bitmap(sb, group); 3612 bitmap_bh = ext4_read_block_bitmap(sb, group);
3625 if (bitmap_bh == NULL) { 3613 if (bitmap_bh == NULL) {
3626 ext4_error(sb, __func__, "Error in reading block " 3614 ext4_error(sb, "Error reading block bitmap for %u", group);
3627 "bitmap for %u", group);
3628 return 0; 3615 return 0;
3629 } 3616 }
3630 3617
3631 err = ext4_mb_load_buddy(sb, group, &e4b); 3618 err = ext4_mb_load_buddy(sb, group, &e4b);
3632 if (err) { 3619 if (err) {
3633 ext4_error(sb, __func__, "Error in loading buddy " 3620 ext4_error(sb, "Error loading buddy information for %u", group);
3634 "information for %u", group);
3635 put_bh(bitmap_bh); 3621 put_bh(bitmap_bh);
3636 return 0; 3622 return 0;
3637 } 3623 }
@@ -3804,15 +3790,15 @@ repeat:
3804 3790
3805 err = ext4_mb_load_buddy(sb, group, &e4b); 3791 err = ext4_mb_load_buddy(sb, group, &e4b);
3806 if (err) { 3792 if (err) {
3807 ext4_error(sb, __func__, "Error in loading buddy " 3793 ext4_error(sb, "Error loading buddy information for %u",
3808 "information for %u", group); 3794 group);
3809 continue; 3795 continue;
3810 } 3796 }
3811 3797
3812 bitmap_bh = ext4_read_block_bitmap(sb, group); 3798 bitmap_bh = ext4_read_block_bitmap(sb, group);
3813 if (bitmap_bh == NULL) { 3799 if (bitmap_bh == NULL) {
3814 ext4_error(sb, __func__, "Error in reading block " 3800 ext4_error(sb, "Error reading block bitmap for %u",
3815 "bitmap for %u", group); 3801 group);
3816 ext4_mb_release_desc(&e4b); 3802 ext4_mb_release_desc(&e4b);
3817 continue; 3803 continue;
3818 } 3804 }
@@ -3938,7 +3924,7 @@ static void ext4_mb_group_or_file(struct ext4_allocation_context *ac)
3938 3924
3939 /* don't use group allocation for large files */ 3925 /* don't use group allocation for large files */
3940 size = max(size, isize); 3926 size = max(size, isize);
3941 if (size >= sbi->s_mb_stream_request) { 3927 if (size > sbi->s_mb_stream_request) {
3942 ac->ac_flags |= EXT4_MB_STREAM_ALLOC; 3928 ac->ac_flags |= EXT4_MB_STREAM_ALLOC;
3943 return; 3929 return;
3944 } 3930 }
@@ -4077,8 +4063,8 @@ ext4_mb_discard_lg_preallocations(struct super_block *sb,
4077 4063
4078 ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, NULL); 4064 ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, NULL);
4079 if (ext4_mb_load_buddy(sb, group, &e4b)) { 4065 if (ext4_mb_load_buddy(sb, group, &e4b)) {
4080 ext4_error(sb, __func__, "Error in loading buddy " 4066 ext4_error(sb, "Error loading buddy information for %u",
4081 "information for %u", group); 4067 group);
4082 continue; 4068 continue;
4083 } 4069 }
4084 ext4_lock_group(sb, group); 4070 ext4_lock_group(sb, group);
@@ -4476,10 +4462,10 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
4476 4462
4477 sbi = EXT4_SB(sb); 4463 sbi = EXT4_SB(sb);
4478 es = EXT4_SB(sb)->s_es; 4464 es = EXT4_SB(sb)->s_es;
4479 if (!ext4_data_block_valid(sbi, block, count)) { 4465 if (!(flags & EXT4_FREE_BLOCKS_VALIDATED) &&
4480 ext4_error(sb, __func__, 4466 !ext4_data_block_valid(sbi, block, count)) {
4481 "Freeing blocks not in datazone - " 4467 ext4_error(sb, "Freeing blocks not in datazone - "
4482 "block = %llu, count = %lu", block, count); 4468 "block = %llu, count = %lu", block, count);
4483 goto error_return; 4469 goto error_return;
4484 } 4470 }
4485 4471
@@ -4547,8 +4533,7 @@ do_more:
4547 in_range(block + count - 1, ext4_inode_table(sb, gdp), 4533 in_range(block + count - 1, ext4_inode_table(sb, gdp),
4548 EXT4_SB(sb)->s_itb_per_group)) { 4534 EXT4_SB(sb)->s_itb_per_group)) {
4549 4535
4550 ext4_error(sb, __func__, 4536 ext4_error(sb, "Freeing blocks in system zone - "
4551 "Freeing blocks in system zone - "
4552 "Block = %llu, count = %lu", block, count); 4537 "Block = %llu, count = %lu", block, count);
4553 /* err = 0. ext4_std_error should be a no op */ 4538 /* err = 0. ext4_std_error should be a no op */
4554 goto error_return; 4539 goto error_return;
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 436521cae456..b619322c76f0 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -220,16 +220,9 @@ struct ext4_buddy {
220#define EXT4_MB_BITMAP(e4b) ((e4b)->bd_bitmap) 220#define EXT4_MB_BITMAP(e4b) ((e4b)->bd_bitmap)
221#define EXT4_MB_BUDDY(e4b) ((e4b)->bd_buddy) 221#define EXT4_MB_BUDDY(e4b) ((e4b)->bd_buddy)
222 222
223#define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1)
224
225static inline ext4_fsblk_t ext4_grp_offs_to_block(struct super_block *sb, 223static inline ext4_fsblk_t ext4_grp_offs_to_block(struct super_block *sb,
226 struct ext4_free_extent *fex) 224 struct ext4_free_extent *fex)
227{ 225{
228 ext4_fsblk_t block; 226 return ext4_group_first_block_no(sb, fex->fe_group) + fex->fe_start;
229
230 block = (ext4_fsblk_t) fex->fe_group * EXT4_BLOCKS_PER_GROUP(sb)
231 + fex->fe_start
232 + le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
233 return block;
234} 227}
235#endif 228#endif
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 81415814b00b..8b87bd0eac95 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -365,12 +365,12 @@ static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
365 * happened after we started the migrate. We need to 365 * happened after we started the migrate. We need to
366 * fail the migrate 366 * fail the migrate
367 */ 367 */
368 if (!(EXT4_I(inode)->i_state & EXT4_STATE_EXT_MIGRATE)) { 368 if (!ext4_test_inode_state(inode, EXT4_STATE_EXT_MIGRATE)) {
369 retval = -EAGAIN; 369 retval = -EAGAIN;
370 up_write(&EXT4_I(inode)->i_data_sem); 370 up_write(&EXT4_I(inode)->i_data_sem);
371 goto err_out; 371 goto err_out;
372 } else 372 } else
373 EXT4_I(inode)->i_state &= ~EXT4_STATE_EXT_MIGRATE; 373 ext4_clear_inode_state(inode, EXT4_STATE_EXT_MIGRATE);
374 /* 374 /*
375 * We have the extent map build with the tmp inode. 375 * We have the extent map build with the tmp inode.
376 * Now copy the i_data across 376 * Now copy the i_data across
@@ -503,14 +503,10 @@ int ext4_ext_migrate(struct inode *inode)
503 } 503 }
504 i_size_write(tmp_inode, i_size_read(inode)); 504 i_size_write(tmp_inode, i_size_read(inode));
505 /* 505 /*
506 * We don't want the inode to be reclaimed 506 * Set the i_nlink to zero so it will be deleted later
507 * if we got interrupted in between. We have 507 * when we drop inode reference.
508 * this tmp inode carrying reference to the
509 * data blocks of the original file. We set
510 * the i_nlink to zero at the last stage after
511 * switching the original file to extent format
512 */ 508 */
513 tmp_inode->i_nlink = 1; 509 tmp_inode->i_nlink = 0;
514 510
515 ext4_ext_tree_init(handle, tmp_inode); 511 ext4_ext_tree_init(handle, tmp_inode);
516 ext4_orphan_add(handle, tmp_inode); 512 ext4_orphan_add(handle, tmp_inode);
@@ -533,10 +529,20 @@ int ext4_ext_migrate(struct inode *inode)
533 * allocation. 529 * allocation.
534 */ 530 */
535 down_read((&EXT4_I(inode)->i_data_sem)); 531 down_read((&EXT4_I(inode)->i_data_sem));
536 EXT4_I(inode)->i_state |= EXT4_STATE_EXT_MIGRATE; 532 ext4_set_inode_state(inode, EXT4_STATE_EXT_MIGRATE);
537 up_read((&EXT4_I(inode)->i_data_sem)); 533 up_read((&EXT4_I(inode)->i_data_sem));
538 534
539 handle = ext4_journal_start(inode, 1); 535 handle = ext4_journal_start(inode, 1);
536 if (IS_ERR(handle)) {
537 /*
538 * It is impossible to update on-disk structures without
539 * a handle, so just rollback in-core changes and live other
540 * work to orphan_list_cleanup()
541 */
542 ext4_orphan_del(NULL, tmp_inode);
543 retval = PTR_ERR(handle);
544 goto out;
545 }
540 546
541 ei = EXT4_I(inode); 547 ei = EXT4_I(inode);
542 i_data = ei->i_data; 548 i_data = ei->i_data;
@@ -618,15 +624,8 @@ err_out:
618 624
619 /* Reset the extent details */ 625 /* Reset the extent details */
620 ext4_ext_tree_init(handle, tmp_inode); 626 ext4_ext_tree_init(handle, tmp_inode);
621
622 /*
623 * Set the i_nlink to zero so that
624 * generic_drop_inode really deletes the
625 * inode
626 */
627 tmp_inode->i_nlink = 0;
628
629 ext4_journal_stop(handle); 627 ext4_journal_stop(handle);
628out:
630 unlock_new_inode(tmp_inode); 629 unlock_new_inode(tmp_inode);
631 iput(tmp_inode); 630 iput(tmp_inode);
632 631
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 82c415be87a4..aa5fe28d180f 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -152,12 +152,12 @@ mext_check_null_inode(struct inode *inode1, struct inode *inode2,
152 int ret = 0; 152 int ret = 0;
153 153
154 if (inode1 == NULL) { 154 if (inode1 == NULL) {
155 ext4_error(inode2->i_sb, function, 155 __ext4_error(inode2->i_sb, function,
156 "Both inodes should not be NULL: " 156 "Both inodes should not be NULL: "
157 "inode1 NULL inode2 %lu", inode2->i_ino); 157 "inode1 NULL inode2 %lu", inode2->i_ino);
158 ret = -EIO; 158 ret = -EIO;
159 } else if (inode2 == NULL) { 159 } else if (inode2 == NULL) {
160 ext4_error(inode1->i_sb, function, 160 __ext4_error(inode1->i_sb, function,
161 "Both inodes should not be NULL: " 161 "Both inodes should not be NULL: "
162 "inode1 %lu inode2 NULL", inode1->i_ino); 162 "inode1 %lu inode2 NULL", inode1->i_ino);
163 ret = -EIO; 163 ret = -EIO;
@@ -252,6 +252,7 @@ mext_insert_across_blocks(handle_t *handle, struct inode *orig_inode,
252 } 252 }
253 253
254 o_start->ee_len = start_ext->ee_len; 254 o_start->ee_len = start_ext->ee_len;
255 eblock = le32_to_cpu(start_ext->ee_block);
255 new_flag = 1; 256 new_flag = 1;
256 257
257 } else if (start_ext->ee_len && new_ext->ee_len && 258 } else if (start_ext->ee_len && new_ext->ee_len &&
@@ -262,6 +263,7 @@ mext_insert_across_blocks(handle_t *handle, struct inode *orig_inode,
262 * orig |------------------------------| 263 * orig |------------------------------|
263 */ 264 */
264 o_start->ee_len = start_ext->ee_len; 265 o_start->ee_len = start_ext->ee_len;
266 eblock = le32_to_cpu(start_ext->ee_block);
265 new_flag = 1; 267 new_flag = 1;
266 268
267 } else if (!start_ext->ee_len && new_ext->ee_len && 269 } else if (!start_ext->ee_len && new_ext->ee_len &&
@@ -475,7 +477,6 @@ mext_leaf_block(handle_t *handle, struct inode *orig_inode,
475 struct ext4_extent *oext, *o_start, *o_end, *prev_ext; 477 struct ext4_extent *oext, *o_start, *o_end, *prev_ext;
476 struct ext4_extent new_ext, start_ext, end_ext; 478 struct ext4_extent new_ext, start_ext, end_ext;
477 ext4_lblk_t new_ext_end; 479 ext4_lblk_t new_ext_end;
478 ext4_fsblk_t new_phys_end;
479 int oext_alen, new_ext_alen, end_ext_alen; 480 int oext_alen, new_ext_alen, end_ext_alen;
480 int depth = ext_depth(orig_inode); 481 int depth = ext_depth(orig_inode);
481 int ret; 482 int ret;
@@ -489,7 +490,6 @@ mext_leaf_block(handle_t *handle, struct inode *orig_inode,
489 new_ext.ee_len = dext->ee_len; 490 new_ext.ee_len = dext->ee_len;
490 new_ext_alen = ext4_ext_get_actual_len(&new_ext); 491 new_ext_alen = ext4_ext_get_actual_len(&new_ext);
491 new_ext_end = le32_to_cpu(new_ext.ee_block) + new_ext_alen - 1; 492 new_ext_end = le32_to_cpu(new_ext.ee_block) + new_ext_alen - 1;
492 new_phys_end = ext_pblock(&new_ext) + new_ext_alen - 1;
493 493
494 /* 494 /*
495 * Case: original extent is first 495 * Case: original extent is first
@@ -502,6 +502,7 @@ mext_leaf_block(handle_t *handle, struct inode *orig_inode,
502 le32_to_cpu(oext->ee_block) + oext_alen) { 502 le32_to_cpu(oext->ee_block) + oext_alen) {
503 start_ext.ee_len = cpu_to_le16(le32_to_cpu(new_ext.ee_block) - 503 start_ext.ee_len = cpu_to_le16(le32_to_cpu(new_ext.ee_block) -
504 le32_to_cpu(oext->ee_block)); 504 le32_to_cpu(oext->ee_block));
505 start_ext.ee_block = oext->ee_block;
505 copy_extent_status(oext, &start_ext); 506 copy_extent_status(oext, &start_ext);
506 } else if (oext > EXT_FIRST_EXTENT(orig_path[depth].p_hdr)) { 507 } else if (oext > EXT_FIRST_EXTENT(orig_path[depth].p_hdr)) {
507 prev_ext = oext - 1; 508 prev_ext = oext - 1;
@@ -515,6 +516,7 @@ mext_leaf_block(handle_t *handle, struct inode *orig_inode,
515 start_ext.ee_len = cpu_to_le16( 516 start_ext.ee_len = cpu_to_le16(
516 ext4_ext_get_actual_len(prev_ext) + 517 ext4_ext_get_actual_len(prev_ext) +
517 new_ext_alen); 518 new_ext_alen);
519 start_ext.ee_block = oext->ee_block;
518 copy_extent_status(prev_ext, &start_ext); 520 copy_extent_status(prev_ext, &start_ext);
519 new_ext.ee_len = 0; 521 new_ext.ee_len = 0;
520 } 522 }
@@ -526,7 +528,7 @@ mext_leaf_block(handle_t *handle, struct inode *orig_inode,
526 * new_ext |-------| 528 * new_ext |-------|
527 */ 529 */
528 if (le32_to_cpu(oext->ee_block) + oext_alen - 1 < new_ext_end) { 530 if (le32_to_cpu(oext->ee_block) + oext_alen - 1 < new_ext_end) {
529 ext4_error(orig_inode->i_sb, __func__, 531 ext4_error(orig_inode->i_sb,
530 "new_ext_end(%u) should be less than or equal to " 532 "new_ext_end(%u) should be less than or equal to "
531 "oext->ee_block(%u) + oext_alen(%d) - 1", 533 "oext->ee_block(%u) + oext_alen(%d) - 1",
532 new_ext_end, le32_to_cpu(oext->ee_block), 534 new_ext_end, le32_to_cpu(oext->ee_block),
@@ -689,12 +691,12 @@ mext_replace_branches(handle_t *handle, struct inode *orig_inode,
689 while (1) { 691 while (1) {
690 /* The extent for donor must be found. */ 692 /* The extent for donor must be found. */
691 if (!dext) { 693 if (!dext) {
692 ext4_error(donor_inode->i_sb, __func__, 694 ext4_error(donor_inode->i_sb,
693 "The extent for donor must be found"); 695 "The extent for donor must be found");
694 *err = -EIO; 696 *err = -EIO;
695 goto out; 697 goto out;
696 } else if (donor_off != le32_to_cpu(tmp_dext.ee_block)) { 698 } else if (donor_off != le32_to_cpu(tmp_dext.ee_block)) {
697 ext4_error(donor_inode->i_sb, __func__, 699 ext4_error(donor_inode->i_sb,
698 "Donor offset(%u) and the first block of donor " 700 "Donor offset(%u) and the first block of donor "
699 "extent(%u) should be equal", 701 "extent(%u) should be equal",
700 donor_off, 702 donor_off,
@@ -928,7 +930,7 @@ out2:
928} 930}
929 931
930/** 932/**
931 * mext_check_argumants - Check whether move extent can be done 933 * mext_check_arguments - Check whether move extent can be done
932 * 934 *
933 * @orig_inode: original inode 935 * @orig_inode: original inode
934 * @donor_inode: donor inode 936 * @donor_inode: donor inode
@@ -949,14 +951,6 @@ mext_check_arguments(struct inode *orig_inode,
949 unsigned int blkbits = orig_inode->i_blkbits; 951 unsigned int blkbits = orig_inode->i_blkbits;
950 unsigned int blocksize = 1 << blkbits; 952 unsigned int blocksize = 1 << blkbits;
951 953
952 /* Regular file check */
953 if (!S_ISREG(orig_inode->i_mode) || !S_ISREG(donor_inode->i_mode)) {
954 ext4_debug("ext4 move extent: The argument files should be "
955 "regular file [ino:orig %lu, donor %lu]\n",
956 orig_inode->i_ino, donor_inode->i_ino);
957 return -EINVAL;
958 }
959
960 if (donor_inode->i_mode & (S_ISUID|S_ISGID)) { 954 if (donor_inode->i_mode & (S_ISUID|S_ISGID)) {
961 ext4_debug("ext4 move extent: suid or sgid is set" 955 ext4_debug("ext4 move extent: suid or sgid is set"
962 " to donor file [ino:orig %lu, donor %lu]\n", 956 " to donor file [ino:orig %lu, donor %lu]\n",
@@ -1204,6 +1198,14 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp,
1204 return -EINVAL; 1198 return -EINVAL;
1205 } 1199 }
1206 1200
1201 /* Regular file check */
1202 if (!S_ISREG(orig_inode->i_mode) || !S_ISREG(donor_inode->i_mode)) {
1203 ext4_debug("ext4 move extent: The argument files should be "
1204 "regular file [ino:orig %lu, donor %lu]\n",
1205 orig_inode->i_ino, donor_inode->i_ino);
1206 return -EINVAL;
1207 }
1208
1207 /* Protect orig and donor inodes against a truncate */ 1209 /* Protect orig and donor inodes against a truncate */
1208 ret1 = mext_inode_double_lock(orig_inode, donor_inode); 1210 ret1 = mext_inode_double_lock(orig_inode, donor_inode);
1209 if (ret1 < 0) 1211 if (ret1 < 0)
@@ -1351,7 +1353,7 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp,
1351 if (ret1 < 0) 1353 if (ret1 < 0)
1352 break; 1354 break;
1353 if (*moved_len > len) { 1355 if (*moved_len > len) {
1354 ext4_error(orig_inode->i_sb, __func__, 1356 ext4_error(orig_inode->i_sb,
1355 "We replaced blocks too much! " 1357 "We replaced blocks too much! "
1356 "sum of replaced: %llu requested: %llu", 1358 "sum of replaced: %llu requested: %llu",
1357 *moved_len, len); 1359 *moved_len, len);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 17a17e10dd60..608d21f873ec 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -383,8 +383,7 @@ dx_probe(const struct qstr *d_name, struct inode *dir,
383 if (root->info.hash_version != DX_HASH_TEA && 383 if (root->info.hash_version != DX_HASH_TEA &&
384 root->info.hash_version != DX_HASH_HALF_MD4 && 384 root->info.hash_version != DX_HASH_HALF_MD4 &&
385 root->info.hash_version != DX_HASH_LEGACY) { 385 root->info.hash_version != DX_HASH_LEGACY) {
386 ext4_warning(dir->i_sb, __func__, 386 ext4_warning(dir->i_sb, "Unrecognised inode hash code %d",
387 "Unrecognised inode hash code %d",
388 root->info.hash_version); 387 root->info.hash_version);
389 brelse(bh); 388 brelse(bh);
390 *err = ERR_BAD_DX_DIR; 389 *err = ERR_BAD_DX_DIR;
@@ -399,8 +398,7 @@ dx_probe(const struct qstr *d_name, struct inode *dir,
399 hash = hinfo->hash; 398 hash = hinfo->hash;
400 399
401 if (root->info.unused_flags & 1) { 400 if (root->info.unused_flags & 1) {
402 ext4_warning(dir->i_sb, __func__, 401 ext4_warning(dir->i_sb, "Unimplemented inode hash flags: %#06x",
403 "Unimplemented inode hash flags: %#06x",
404 root->info.unused_flags); 402 root->info.unused_flags);
405 brelse(bh); 403 brelse(bh);
406 *err = ERR_BAD_DX_DIR; 404 *err = ERR_BAD_DX_DIR;
@@ -408,8 +406,7 @@ dx_probe(const struct qstr *d_name, struct inode *dir,
408 } 406 }
409 407
410 if ((indirect = root->info.indirect_levels) > 1) { 408 if ((indirect = root->info.indirect_levels) > 1) {
411 ext4_warning(dir->i_sb, __func__, 409 ext4_warning(dir->i_sb, "Unimplemented inode hash depth: %#06x",
412 "Unimplemented inode hash depth: %#06x",
413 root->info.indirect_levels); 410 root->info.indirect_levels);
414 brelse(bh); 411 brelse(bh);
415 *err = ERR_BAD_DX_DIR; 412 *err = ERR_BAD_DX_DIR;
@@ -421,8 +418,7 @@ dx_probe(const struct qstr *d_name, struct inode *dir,
421 418
422 if (dx_get_limit(entries) != dx_root_limit(dir, 419 if (dx_get_limit(entries) != dx_root_limit(dir,
423 root->info.info_length)) { 420 root->info.info_length)) {
424 ext4_warning(dir->i_sb, __func__, 421 ext4_warning(dir->i_sb, "dx entry: limit != root limit");
425 "dx entry: limit != root limit");
426 brelse(bh); 422 brelse(bh);
427 *err = ERR_BAD_DX_DIR; 423 *err = ERR_BAD_DX_DIR;
428 goto fail; 424 goto fail;
@@ -433,7 +429,7 @@ dx_probe(const struct qstr *d_name, struct inode *dir,
433 { 429 {
434 count = dx_get_count(entries); 430 count = dx_get_count(entries);
435 if (!count || count > dx_get_limit(entries)) { 431 if (!count || count > dx_get_limit(entries)) {
436 ext4_warning(dir->i_sb, __func__, 432 ext4_warning(dir->i_sb,
437 "dx entry: no count or count > limit"); 433 "dx entry: no count or count > limit");
438 brelse(bh); 434 brelse(bh);
439 *err = ERR_BAD_DX_DIR; 435 *err = ERR_BAD_DX_DIR;
@@ -478,7 +474,7 @@ dx_probe(const struct qstr *d_name, struct inode *dir,
478 goto fail2; 474 goto fail2;
479 at = entries = ((struct dx_node *) bh->b_data)->entries; 475 at = entries = ((struct dx_node *) bh->b_data)->entries;
480 if (dx_get_limit(entries) != dx_node_limit (dir)) { 476 if (dx_get_limit(entries) != dx_node_limit (dir)) {
481 ext4_warning(dir->i_sb, __func__, 477 ext4_warning(dir->i_sb,
482 "dx entry: limit != node limit"); 478 "dx entry: limit != node limit");
483 brelse(bh); 479 brelse(bh);
484 *err = ERR_BAD_DX_DIR; 480 *err = ERR_BAD_DX_DIR;
@@ -494,7 +490,7 @@ fail2:
494 } 490 }
495fail: 491fail:
496 if (*err == ERR_BAD_DX_DIR) 492 if (*err == ERR_BAD_DX_DIR)
497 ext4_warning(dir->i_sb, __func__, 493 ext4_warning(dir->i_sb,
498 "Corrupt dir inode %ld, running e2fsck is " 494 "Corrupt dir inode %ld, running e2fsck is "
499 "recommended.", dir->i_ino); 495 "recommended.", dir->i_ino);
500 return NULL; 496 return NULL;
@@ -947,9 +943,8 @@ restart:
947 wait_on_buffer(bh); 943 wait_on_buffer(bh);
948 if (!buffer_uptodate(bh)) { 944 if (!buffer_uptodate(bh)) {
949 /* read error, skip block & hope for the best */ 945 /* read error, skip block & hope for the best */
950 ext4_error(sb, __func__, "reading directory #%lu " 946 ext4_error(sb, "reading directory #%lu offset %lu",
951 "offset %lu", dir->i_ino, 947 dir->i_ino, (unsigned long)block);
952 (unsigned long)block);
953 brelse(bh); 948 brelse(bh);
954 goto next; 949 goto next;
955 } 950 }
@@ -1041,7 +1036,7 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir, const struct q
1041 retval = ext4_htree_next_block(dir, hash, frame, 1036 retval = ext4_htree_next_block(dir, hash, frame,
1042 frames, NULL); 1037 frames, NULL);
1043 if (retval < 0) { 1038 if (retval < 0) {
1044 ext4_warning(sb, __func__, 1039 ext4_warning(sb,
1045 "error reading index page in directory #%lu", 1040 "error reading index page in directory #%lu",
1046 dir->i_ino); 1041 dir->i_ino);
1047 *err = retval; 1042 *err = retval;
@@ -1071,14 +1066,13 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
1071 __u32 ino = le32_to_cpu(de->inode); 1066 __u32 ino = le32_to_cpu(de->inode);
1072 brelse(bh); 1067 brelse(bh);
1073 if (!ext4_valid_inum(dir->i_sb, ino)) { 1068 if (!ext4_valid_inum(dir->i_sb, ino)) {
1074 ext4_error(dir->i_sb, "ext4_lookup", 1069 ext4_error(dir->i_sb, "bad inode number: %u", ino);
1075 "bad inode number: %u", ino);
1076 return ERR_PTR(-EIO); 1070 return ERR_PTR(-EIO);
1077 } 1071 }
1078 inode = ext4_iget(dir->i_sb, ino); 1072 inode = ext4_iget(dir->i_sb, ino);
1079 if (unlikely(IS_ERR(inode))) { 1073 if (unlikely(IS_ERR(inode))) {
1080 if (PTR_ERR(inode) == -ESTALE) { 1074 if (PTR_ERR(inode) == -ESTALE) {
1081 ext4_error(dir->i_sb, __func__, 1075 ext4_error(dir->i_sb,
1082 "deleted inode referenced: %u", 1076 "deleted inode referenced: %u",
1083 ino); 1077 ino);
1084 return ERR_PTR(-EIO); 1078 return ERR_PTR(-EIO);
@@ -1110,7 +1104,7 @@ struct dentry *ext4_get_parent(struct dentry *child)
1110 brelse(bh); 1104 brelse(bh);
1111 1105
1112 if (!ext4_valid_inum(child->d_inode->i_sb, ino)) { 1106 if (!ext4_valid_inum(child->d_inode->i_sb, ino)) {
1113 ext4_error(child->d_inode->i_sb, "ext4_get_parent", 1107 ext4_error(child->d_inode->i_sb,
1114 "bad inode number: %u", ino); 1108 "bad inode number: %u", ino);
1115 return ERR_PTR(-EIO); 1109 return ERR_PTR(-EIO);
1116 } 1110 }
@@ -1410,7 +1404,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
1410 de = (struct ext4_dir_entry_2 *)((char *)fde + 1404 de = (struct ext4_dir_entry_2 *)((char *)fde +
1411 ext4_rec_len_from_disk(fde->rec_len, blocksize)); 1405 ext4_rec_len_from_disk(fde->rec_len, blocksize));
1412 if ((char *) de >= (((char *) root) + blocksize)) { 1406 if ((char *) de >= (((char *) root) + blocksize)) {
1413 ext4_error(dir->i_sb, __func__, 1407 ext4_error(dir->i_sb,
1414 "invalid rec_len for '..' in inode %lu", 1408 "invalid rec_len for '..' in inode %lu",
1415 dir->i_ino); 1409 dir->i_ino);
1416 brelse(bh); 1410 brelse(bh);
@@ -1575,8 +1569,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
1575 1569
1576 if (levels && (dx_get_count(frames->entries) == 1570 if (levels && (dx_get_count(frames->entries) ==
1577 dx_get_limit(frames->entries))) { 1571 dx_get_limit(frames->entries))) {
1578 ext4_warning(sb, __func__, 1572 ext4_warning(sb, "Directory index full!");
1579 "Directory index full!");
1580 err = -ENOSPC; 1573 err = -ENOSPC;
1581 goto cleanup; 1574 goto cleanup;
1582 } 1575 }
@@ -1916,11 +1909,11 @@ static int empty_dir(struct inode *inode)
1916 if (inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2) || 1909 if (inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2) ||
1917 !(bh = ext4_bread(NULL, inode, 0, 0, &err))) { 1910 !(bh = ext4_bread(NULL, inode, 0, 0, &err))) {
1918 if (err) 1911 if (err)
1919 ext4_error(inode->i_sb, __func__, 1912 ext4_error(inode->i_sb,
1920 "error %d reading directory #%lu offset 0", 1913 "error %d reading directory #%lu offset 0",
1921 err, inode->i_ino); 1914 err, inode->i_ino);
1922 else 1915 else
1923 ext4_warning(inode->i_sb, __func__, 1916 ext4_warning(inode->i_sb,
1924 "bad directory (dir #%lu) - no data block", 1917 "bad directory (dir #%lu) - no data block",
1925 inode->i_ino); 1918 inode->i_ino);
1926 return 1; 1919 return 1;
@@ -1931,7 +1924,7 @@ static int empty_dir(struct inode *inode)
1931 !le32_to_cpu(de1->inode) || 1924 !le32_to_cpu(de1->inode) ||
1932 strcmp(".", de->name) || 1925 strcmp(".", de->name) ||
1933 strcmp("..", de1->name)) { 1926 strcmp("..", de1->name)) {
1934 ext4_warning(inode->i_sb, "empty_dir", 1927 ext4_warning(inode->i_sb,
1935 "bad directory (dir #%lu) - no `.' or `..'", 1928 "bad directory (dir #%lu) - no `.' or `..'",
1936 inode->i_ino); 1929 inode->i_ino);
1937 brelse(bh); 1930 brelse(bh);
@@ -1949,7 +1942,7 @@ static int empty_dir(struct inode *inode)
1949 offset >> EXT4_BLOCK_SIZE_BITS(sb), 0, &err); 1942 offset >> EXT4_BLOCK_SIZE_BITS(sb), 0, &err);
1950 if (!bh) { 1943 if (!bh) {
1951 if (err) 1944 if (err)
1952 ext4_error(sb, __func__, 1945 ext4_error(sb,
1953 "error %d reading directory" 1946 "error %d reading directory"
1954 " #%lu offset %u", 1947 " #%lu offset %u",
1955 err, inode->i_ino, offset); 1948 err, inode->i_ino, offset);
@@ -2020,11 +2013,18 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
2020 err = ext4_reserve_inode_write(handle, inode, &iloc); 2013 err = ext4_reserve_inode_write(handle, inode, &iloc);
2021 if (err) 2014 if (err)
2022 goto out_unlock; 2015 goto out_unlock;
2016 /*
2017 * Due to previous errors inode may be already a part of on-disk
2018 * orphan list. If so skip on-disk list modification.
2019 */
2020 if (NEXT_ORPHAN(inode) && NEXT_ORPHAN(inode) <=
2021 (le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count)))
2022 goto mem_insert;
2023 2023
2024 /* Insert this inode at the head of the on-disk orphan list... */ 2024 /* Insert this inode at the head of the on-disk orphan list... */
2025 NEXT_ORPHAN(inode) = le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan); 2025 NEXT_ORPHAN(inode) = le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan);
2026 EXT4_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino); 2026 EXT4_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
2027 err = ext4_handle_dirty_metadata(handle, inode, EXT4_SB(sb)->s_sbh); 2027 err = ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
2028 rc = ext4_mark_iloc_dirty(handle, inode, &iloc); 2028 rc = ext4_mark_iloc_dirty(handle, inode, &iloc);
2029 if (!err) 2029 if (!err)
2030 err = rc; 2030 err = rc;
@@ -2037,6 +2037,7 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
2037 * 2037 *
2038 * This is safe: on error we're going to ignore the orphan list 2038 * This is safe: on error we're going to ignore the orphan list
2039 * anyway on the next recovery. */ 2039 * anyway on the next recovery. */
2040mem_insert:
2040 if (!err) 2041 if (!err)
2041 list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan); 2042 list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);
2042 2043
@@ -2096,7 +2097,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
2096 if (err) 2097 if (err)
2097 goto out_brelse; 2098 goto out_brelse;
2098 sbi->s_es->s_last_orphan = cpu_to_le32(ino_next); 2099 sbi->s_es->s_last_orphan = cpu_to_le32(ino_next);
2099 err = ext4_handle_dirty_metadata(handle, inode, sbi->s_sbh); 2100 err = ext4_handle_dirty_metadata(handle, NULL, sbi->s_sbh);
2100 } else { 2101 } else {
2101 struct ext4_iloc iloc2; 2102 struct ext4_iloc iloc2;
2102 struct inode *i_prev = 2103 struct inode *i_prev =
@@ -2163,7 +2164,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
2163 if (retval) 2164 if (retval)
2164 goto end_rmdir; 2165 goto end_rmdir;
2165 if (!EXT4_DIR_LINK_EMPTY(inode)) 2166 if (!EXT4_DIR_LINK_EMPTY(inode))
2166 ext4_warning(inode->i_sb, "ext4_rmdir", 2167 ext4_warning(inode->i_sb,
2167 "empty directory has too many links (%d)", 2168 "empty directory has too many links (%d)",
2168 inode->i_nlink); 2169 inode->i_nlink);
2169 inode->i_version++; 2170 inode->i_version++;
@@ -2215,7 +2216,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
2215 goto end_unlink; 2216 goto end_unlink;
2216 2217
2217 if (!inode->i_nlink) { 2218 if (!inode->i_nlink) {
2218 ext4_warning(inode->i_sb, "ext4_unlink", 2219 ext4_warning(inode->i_sb,
2219 "Deleting nonexistent file (%lu), %d", 2220 "Deleting nonexistent file (%lu), %d",
2220 inode->i_ino, inode->i_nlink); 2221 inode->i_ino, inode->i_nlink);
2221 inode->i_nlink = 1; 2222 inode->i_nlink = 1;
@@ -2462,7 +2463,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
2462 } 2463 }
2463 } 2464 }
2464 if (retval) { 2465 if (retval) {
2465 ext4_warning(old_dir->i_sb, "ext4_rename", 2466 ext4_warning(old_dir->i_sb,
2466 "Deleting old file (%lu), %d, error=%d", 2467 "Deleting old file (%lu), %d, error=%d",
2467 old_dir->i_ino, old_dir->i_nlink, retval); 2468 old_dir->i_ino, old_dir->i_nlink, retval);
2468 } 2469 }
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 3b2c5541d8a6..5692c48754a0 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -48,65 +48,54 @@ static int verify_group_input(struct super_block *sb,
48 48
49 ext4_get_group_no_and_offset(sb, start, NULL, &offset); 49 ext4_get_group_no_and_offset(sb, start, NULL, &offset);
50 if (group != sbi->s_groups_count) 50 if (group != sbi->s_groups_count)
51 ext4_warning(sb, __func__, 51 ext4_warning(sb, "Cannot add at group %u (only %u groups)",
52 "Cannot add at group %u (only %u groups)",
53 input->group, sbi->s_groups_count); 52 input->group, sbi->s_groups_count);
54 else if (offset != 0) 53 else if (offset != 0)
55 ext4_warning(sb, __func__, "Last group not full"); 54 ext4_warning(sb, "Last group not full");
56 else if (input->reserved_blocks > input->blocks_count / 5) 55 else if (input->reserved_blocks > input->blocks_count / 5)
57 ext4_warning(sb, __func__, "Reserved blocks too high (%u)", 56 ext4_warning(sb, "Reserved blocks too high (%u)",
58 input->reserved_blocks); 57 input->reserved_blocks);
59 else if (free_blocks_count < 0) 58 else if (free_blocks_count < 0)
60 ext4_warning(sb, __func__, "Bad blocks count %u", 59 ext4_warning(sb, "Bad blocks count %u",
61 input->blocks_count); 60 input->blocks_count);
62 else if (!(bh = sb_bread(sb, end - 1))) 61 else if (!(bh = sb_bread(sb, end - 1)))
63 ext4_warning(sb, __func__, 62 ext4_warning(sb, "Cannot read last block (%llu)",
64 "Cannot read last block (%llu)",
65 end - 1); 63 end - 1);
66 else if (outside(input->block_bitmap, start, end)) 64 else if (outside(input->block_bitmap, start, end))
67 ext4_warning(sb, __func__, 65 ext4_warning(sb, "Block bitmap not in group (block %llu)",
68 "Block bitmap not in group (block %llu)",
69 (unsigned long long)input->block_bitmap); 66 (unsigned long long)input->block_bitmap);
70 else if (outside(input->inode_bitmap, start, end)) 67 else if (outside(input->inode_bitmap, start, end))
71 ext4_warning(sb, __func__, 68 ext4_warning(sb, "Inode bitmap not in group (block %llu)",
72 "Inode bitmap not in group (block %llu)",
73 (unsigned long long)input->inode_bitmap); 69 (unsigned long long)input->inode_bitmap);
74 else if (outside(input->inode_table, start, end) || 70 else if (outside(input->inode_table, start, end) ||
75 outside(itend - 1, start, end)) 71 outside(itend - 1, start, end))
76 ext4_warning(sb, __func__, 72 ext4_warning(sb, "Inode table not in group (blocks %llu-%llu)",
77 "Inode table not in group (blocks %llu-%llu)",
78 (unsigned long long)input->inode_table, itend - 1); 73 (unsigned long long)input->inode_table, itend - 1);
79 else if (input->inode_bitmap == input->block_bitmap) 74 else if (input->inode_bitmap == input->block_bitmap)
80 ext4_warning(sb, __func__, 75 ext4_warning(sb, "Block bitmap same as inode bitmap (%llu)",
81 "Block bitmap same as inode bitmap (%llu)",
82 (unsigned long long)input->block_bitmap); 76 (unsigned long long)input->block_bitmap);
83 else if (inside(input->block_bitmap, input->inode_table, itend)) 77 else if (inside(input->block_bitmap, input->inode_table, itend))
84 ext4_warning(sb, __func__, 78 ext4_warning(sb, "Block bitmap (%llu) in inode table "
85 "Block bitmap (%llu) in inode table (%llu-%llu)", 79 "(%llu-%llu)",
86 (unsigned long long)input->block_bitmap, 80 (unsigned long long)input->block_bitmap,
87 (unsigned long long)input->inode_table, itend - 1); 81 (unsigned long long)input->inode_table, itend - 1);
88 else if (inside(input->inode_bitmap, input->inode_table, itend)) 82 else if (inside(input->inode_bitmap, input->inode_table, itend))
89 ext4_warning(sb, __func__, 83 ext4_warning(sb, "Inode bitmap (%llu) in inode table "
90 "Inode bitmap (%llu) in inode table (%llu-%llu)", 84 "(%llu-%llu)",
91 (unsigned long long)input->inode_bitmap, 85 (unsigned long long)input->inode_bitmap,
92 (unsigned long long)input->inode_table, itend - 1); 86 (unsigned long long)input->inode_table, itend - 1);
93 else if (inside(input->block_bitmap, start, metaend)) 87 else if (inside(input->block_bitmap, start, metaend))
94 ext4_warning(sb, __func__, 88 ext4_warning(sb, "Block bitmap (%llu) in GDT table (%llu-%llu)",
95 "Block bitmap (%llu) in GDT table"
96 " (%llu-%llu)",
97 (unsigned long long)input->block_bitmap, 89 (unsigned long long)input->block_bitmap,
98 start, metaend - 1); 90 start, metaend - 1);
99 else if (inside(input->inode_bitmap, start, metaend)) 91 else if (inside(input->inode_bitmap, start, metaend))
100 ext4_warning(sb, __func__, 92 ext4_warning(sb, "Inode bitmap (%llu) in GDT table (%llu-%llu)",
101 "Inode bitmap (%llu) in GDT table"
102 " (%llu-%llu)",
103 (unsigned long long)input->inode_bitmap, 93 (unsigned long long)input->inode_bitmap,
104 start, metaend - 1); 94 start, metaend - 1);
105 else if (inside(input->inode_table, start, metaend) || 95 else if (inside(input->inode_table, start, metaend) ||
106 inside(itend - 1, start, metaend)) 96 inside(itend - 1, start, metaend))
107 ext4_warning(sb, __func__, 97 ext4_warning(sb, "Inode table (%llu-%llu) overlaps GDT table "
108 "Inode table (%llu-%llu) overlaps" 98 "(%llu-%llu)",
109 "GDT table (%llu-%llu)",
110 (unsigned long long)input->inode_table, 99 (unsigned long long)input->inode_table,
111 itend - 1, start, metaend - 1); 100 itend - 1, start, metaend - 1);
112 else 101 else
@@ -364,8 +353,7 @@ static int verify_reserved_gdb(struct super_block *sb,
364 while ((grp = ext4_list_backups(sb, &three, &five, &seven)) < end) { 353 while ((grp = ext4_list_backups(sb, &three, &five, &seven)) < end) {
365 if (le32_to_cpu(*p++) != 354 if (le32_to_cpu(*p++) !=
366 grp * EXT4_BLOCKS_PER_GROUP(sb) + blk){ 355 grp * EXT4_BLOCKS_PER_GROUP(sb) + blk){
367 ext4_warning(sb, __func__, 356 ext4_warning(sb, "reserved GDT %llu"
368 "reserved GDT %llu"
369 " missing grp %d (%llu)", 357 " missing grp %d (%llu)",
370 blk, grp, 358 blk, grp,
371 grp * 359 grp *
@@ -420,8 +408,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
420 */ 408 */
421 if (EXT4_SB(sb)->s_sbh->b_blocknr != 409 if (EXT4_SB(sb)->s_sbh->b_blocknr !=
422 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { 410 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
423 ext4_warning(sb, __func__, 411 ext4_warning(sb, "won't resize using backup superblock at %llu",
424 "won't resize using backup superblock at %llu",
425 (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); 412 (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
426 return -EPERM; 413 return -EPERM;
427 } 414 }
@@ -444,8 +431,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
444 431
445 data = (__le32 *)dind->b_data; 432 data = (__le32 *)dind->b_data;
446 if (le32_to_cpu(data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)]) != gdblock) { 433 if (le32_to_cpu(data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)]) != gdblock) {
447 ext4_warning(sb, __func__, 434 ext4_warning(sb, "new group %u GDT block %llu not reserved",
448 "new group %u GDT block %llu not reserved",
449 input->group, gdblock); 435 input->group, gdblock);
450 err = -EINVAL; 436 err = -EINVAL;
451 goto exit_dind; 437 goto exit_dind;
@@ -468,7 +454,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
468 GFP_NOFS); 454 GFP_NOFS);
469 if (!n_group_desc) { 455 if (!n_group_desc) {
470 err = -ENOMEM; 456 err = -ENOMEM;
471 ext4_warning(sb, __func__, 457 ext4_warning(sb,
472 "not enough memory for %lu groups", gdb_num + 1); 458 "not enough memory for %lu groups", gdb_num + 1);
473 goto exit_inode; 459 goto exit_inode;
474 } 460 }
@@ -567,8 +553,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
567 /* Get each reserved primary GDT block and verify it holds backups */ 553 /* Get each reserved primary GDT block and verify it holds backups */
568 for (res = 0; res < reserved_gdb; res++, blk++) { 554 for (res = 0; res < reserved_gdb; res++, blk++) {
569 if (le32_to_cpu(*data) != blk) { 555 if (le32_to_cpu(*data) != blk) {
570 ext4_warning(sb, __func__, 556 ext4_warning(sb, "reserved block %llu"
571 "reserved block %llu"
572 " not at offset %ld", 557 " not at offset %ld",
573 blk, 558 blk,
574 (long)(data - (__le32 *)dind->b_data)); 559 (long)(data - (__le32 *)dind->b_data));
@@ -713,8 +698,7 @@ static void update_backups(struct super_block *sb,
713 */ 698 */
714exit_err: 699exit_err:
715 if (err) { 700 if (err) {
716 ext4_warning(sb, __func__, 701 ext4_warning(sb, "can't update backup for group %u (err %d), "
717 "can't update backup for group %u (err %d), "
718 "forcing fsck on next reboot", group, err); 702 "forcing fsck on next reboot", group, err);
719 sbi->s_mount_state &= ~EXT4_VALID_FS; 703 sbi->s_mount_state &= ~EXT4_VALID_FS;
720 sbi->s_es->s_state &= cpu_to_le16(~EXT4_VALID_FS); 704 sbi->s_es->s_state &= cpu_to_le16(~EXT4_VALID_FS);
@@ -753,20 +737,19 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
753 737
754 if (gdb_off == 0 && !EXT4_HAS_RO_COMPAT_FEATURE(sb, 738 if (gdb_off == 0 && !EXT4_HAS_RO_COMPAT_FEATURE(sb,
755 EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 739 EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
756 ext4_warning(sb, __func__, 740 ext4_warning(sb, "Can't resize non-sparse filesystem further");
757 "Can't resize non-sparse filesystem further");
758 return -EPERM; 741 return -EPERM;
759 } 742 }
760 743
761 if (ext4_blocks_count(es) + input->blocks_count < 744 if (ext4_blocks_count(es) + input->blocks_count <
762 ext4_blocks_count(es)) { 745 ext4_blocks_count(es)) {
763 ext4_warning(sb, __func__, "blocks_count overflow"); 746 ext4_warning(sb, "blocks_count overflow");
764 return -EINVAL; 747 return -EINVAL;
765 } 748 }
766 749
767 if (le32_to_cpu(es->s_inodes_count) + EXT4_INODES_PER_GROUP(sb) < 750 if (le32_to_cpu(es->s_inodes_count) + EXT4_INODES_PER_GROUP(sb) <
768 le32_to_cpu(es->s_inodes_count)) { 751 le32_to_cpu(es->s_inodes_count)) {
769 ext4_warning(sb, __func__, "inodes_count overflow"); 752 ext4_warning(sb, "inodes_count overflow");
770 return -EINVAL; 753 return -EINVAL;
771 } 754 }
772 755
@@ -774,14 +757,13 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
774 if (!EXT4_HAS_COMPAT_FEATURE(sb, 757 if (!EXT4_HAS_COMPAT_FEATURE(sb,
775 EXT4_FEATURE_COMPAT_RESIZE_INODE) 758 EXT4_FEATURE_COMPAT_RESIZE_INODE)
776 || !le16_to_cpu(es->s_reserved_gdt_blocks)) { 759 || !le16_to_cpu(es->s_reserved_gdt_blocks)) {
777 ext4_warning(sb, __func__, 760 ext4_warning(sb,
778 "No reserved GDT blocks, can't resize"); 761 "No reserved GDT blocks, can't resize");
779 return -EPERM; 762 return -EPERM;
780 } 763 }
781 inode = ext4_iget(sb, EXT4_RESIZE_INO); 764 inode = ext4_iget(sb, EXT4_RESIZE_INO);
782 if (IS_ERR(inode)) { 765 if (IS_ERR(inode)) {
783 ext4_warning(sb, __func__, 766 ext4_warning(sb, "Error opening resize inode");
784 "Error opening resize inode");
785 return PTR_ERR(inode); 767 return PTR_ERR(inode);
786 } 768 }
787 } 769 }
@@ -810,8 +792,7 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
810 792
811 mutex_lock(&sbi->s_resize_lock); 793 mutex_lock(&sbi->s_resize_lock);
812 if (input->group != sbi->s_groups_count) { 794 if (input->group != sbi->s_groups_count) {
813 ext4_warning(sb, __func__, 795 ext4_warning(sb, "multiple resizers run on filesystem!");
814 "multiple resizers run on filesystem!");
815 err = -EBUSY; 796 err = -EBUSY;
816 goto exit_journal; 797 goto exit_journal;
817 } 798 }
@@ -997,13 +978,12 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
997 " too large to resize to %llu blocks safely\n", 978 " too large to resize to %llu blocks safely\n",
998 sb->s_id, n_blocks_count); 979 sb->s_id, n_blocks_count);
999 if (sizeof(sector_t) < 8) 980 if (sizeof(sector_t) < 8)
1000 ext4_warning(sb, __func__, "CONFIG_LBDAF not enabled"); 981 ext4_warning(sb, "CONFIG_LBDAF not enabled");
1001 return -EINVAL; 982 return -EINVAL;
1002 } 983 }
1003 984
1004 if (n_blocks_count < o_blocks_count) { 985 if (n_blocks_count < o_blocks_count) {
1005 ext4_warning(sb, __func__, 986 ext4_warning(sb, "can't shrink FS - resize aborted");
1006 "can't shrink FS - resize aborted");
1007 return -EBUSY; 987 return -EBUSY;
1008 } 988 }
1009 989
@@ -1011,15 +991,14 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1011 ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last); 991 ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last);
1012 992
1013 if (last == 0) { 993 if (last == 0) {
1014 ext4_warning(sb, __func__, 994 ext4_warning(sb, "need to use ext2online to resize further");
1015 "need to use ext2online to resize further");
1016 return -EPERM; 995 return -EPERM;
1017 } 996 }
1018 997
1019 add = EXT4_BLOCKS_PER_GROUP(sb) - last; 998 add = EXT4_BLOCKS_PER_GROUP(sb) - last;
1020 999
1021 if (o_blocks_count + add < o_blocks_count) { 1000 if (o_blocks_count + add < o_blocks_count) {
1022 ext4_warning(sb, __func__, "blocks_count overflow"); 1001 ext4_warning(sb, "blocks_count overflow");
1023 return -EINVAL; 1002 return -EINVAL;
1024 } 1003 }
1025 1004
@@ -1027,16 +1006,13 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1027 add = n_blocks_count - o_blocks_count; 1006 add = n_blocks_count - o_blocks_count;
1028 1007
1029 if (o_blocks_count + add < n_blocks_count) 1008 if (o_blocks_count + add < n_blocks_count)
1030 ext4_warning(sb, __func__, 1009 ext4_warning(sb, "will only finish group (%llu blocks, %u new)",
1031 "will only finish group (%llu"
1032 " blocks, %u new)",
1033 o_blocks_count + add, add); 1010 o_blocks_count + add, add);
1034 1011
1035 /* See if the device is actually as big as what was requested */ 1012 /* See if the device is actually as big as what was requested */
1036 bh = sb_bread(sb, o_blocks_count + add - 1); 1013 bh = sb_bread(sb, o_blocks_count + add - 1);
1037 if (!bh) { 1014 if (!bh) {
1038 ext4_warning(sb, __func__, 1015 ext4_warning(sb, "can't read last block, resize aborted");
1039 "can't read last block, resize aborted");
1040 return -ENOSPC; 1016 return -ENOSPC;
1041 } 1017 }
1042 brelse(bh); 1018 brelse(bh);
@@ -1047,14 +1023,13 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1047 handle = ext4_journal_start_sb(sb, 3); 1023 handle = ext4_journal_start_sb(sb, 3);
1048 if (IS_ERR(handle)) { 1024 if (IS_ERR(handle)) {
1049 err = PTR_ERR(handle); 1025 err = PTR_ERR(handle);
1050 ext4_warning(sb, __func__, "error %d on journal start", err); 1026 ext4_warning(sb, "error %d on journal start", err);
1051 goto exit_put; 1027 goto exit_put;
1052 } 1028 }
1053 1029
1054 mutex_lock(&EXT4_SB(sb)->s_resize_lock); 1030 mutex_lock(&EXT4_SB(sb)->s_resize_lock);
1055 if (o_blocks_count != ext4_blocks_count(es)) { 1031 if (o_blocks_count != ext4_blocks_count(es)) {
1056 ext4_warning(sb, __func__, 1032 ext4_warning(sb, "multiple resizers run on filesystem!");
1057 "multiple resizers run on filesystem!");
1058 mutex_unlock(&EXT4_SB(sb)->s_resize_lock); 1033 mutex_unlock(&EXT4_SB(sb)->s_resize_lock);
1059 ext4_journal_stop(handle); 1034 ext4_journal_stop(handle);
1060 err = -EBUSY; 1035 err = -EBUSY;
@@ -1063,8 +1038,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
1063 1038
1064 if ((err = ext4_journal_get_write_access(handle, 1039 if ((err = ext4_journal_get_write_access(handle,
1065 EXT4_SB(sb)->s_sbh))) { 1040 EXT4_SB(sb)->s_sbh))) {
1066 ext4_warning(sb, __func__, 1041 ext4_warning(sb, "error %d on journal write access", err);
1067 "error %d on journal write access", err);
1068 mutex_unlock(&EXT4_SB(sb)->s_resize_lock); 1042 mutex_unlock(&EXT4_SB(sb)->s_resize_lock);
1069 ext4_journal_stop(handle); 1043 ext4_journal_stop(handle);
1070 goto exit_put; 1044 goto exit_put;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 735c20d5fd56..ad1ee5f21bab 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -333,7 +333,7 @@ static void ext4_handle_error(struct super_block *sb)
333 sb->s_id); 333 sb->s_id);
334} 334}
335 335
336void ext4_error(struct super_block *sb, const char *function, 336void __ext4_error(struct super_block *sb, const char *function,
337 const char *fmt, ...) 337 const char *fmt, ...)
338{ 338{
339 va_list args; 339 va_list args;
@@ -347,6 +347,42 @@ void ext4_error(struct super_block *sb, const char *function,
347 ext4_handle_error(sb); 347 ext4_handle_error(sb);
348} 348}
349 349
350void ext4_error_inode(const char *function, struct inode *inode,
351 const char *fmt, ...)
352{
353 va_list args;
354
355 va_start(args, fmt);
356 printk(KERN_CRIT "EXT4-fs error (device %s): %s: inode #%lu: (comm %s) ",
357 inode->i_sb->s_id, function, inode->i_ino, current->comm);
358 vprintk(fmt, args);
359 printk("\n");
360 va_end(args);
361
362 ext4_handle_error(inode->i_sb);
363}
364
365void ext4_error_file(const char *function, struct file *file,
366 const char *fmt, ...)
367{
368 va_list args;
369 struct inode *inode = file->f_dentry->d_inode;
370 char pathname[80], *path;
371
372 va_start(args, fmt);
373 path = d_path(&(file->f_path), pathname, sizeof(pathname));
374 if (!path)
375 path = "(unknown)";
376 printk(KERN_CRIT
377 "EXT4-fs error (device %s): %s: inode #%lu (comm %s path %s): ",
378 inode->i_sb->s_id, function, inode->i_ino, current->comm, path);
379 vprintk(fmt, args);
380 printk("\n");
381 va_end(args);
382
383 ext4_handle_error(inode->i_sb);
384}
385
350static const char *ext4_decode_error(struct super_block *sb, int errno, 386static const char *ext4_decode_error(struct super_block *sb, int errno,
351 char nbuf[16]) 387 char nbuf[16])
352{ 388{
@@ -450,7 +486,7 @@ void ext4_msg (struct super_block * sb, const char *prefix,
450 va_end(args); 486 va_end(args);
451} 487}
452 488
453void ext4_warning(struct super_block *sb, const char *function, 489void __ext4_warning(struct super_block *sb, const char *function,
454 const char *fmt, ...) 490 const char *fmt, ...)
455{ 491{
456 va_list args; 492 va_list args;
@@ -507,7 +543,7 @@ void ext4_update_dynamic_rev(struct super_block *sb)
507 if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV) 543 if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)
508 return; 544 return;
509 545
510 ext4_warning(sb, __func__, 546 ext4_warning(sb,
511 "updating to rev %d because of new feature flag, " 547 "updating to rev %d because of new feature flag, "
512 "running e2fsck is recommended", 548 "running e2fsck is recommended",
513 EXT4_DYNAMIC_REV); 549 EXT4_DYNAMIC_REV);
@@ -708,7 +744,8 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
708#ifdef CONFIG_QUOTA 744#ifdef CONFIG_QUOTA
709 ei->i_reserved_quota = 0; 745 ei->i_reserved_quota = 0;
710#endif 746#endif
711 INIT_LIST_HEAD(&ei->i_aio_dio_complete_list); 747 INIT_LIST_HEAD(&ei->i_completed_io_list);
748 spin_lock_init(&ei->i_completed_io_lock);
712 ei->cur_aio_dio = NULL; 749 ei->cur_aio_dio = NULL;
713 ei->i_sync_tid = 0; 750 ei->i_sync_tid = 0;
714 ei->i_datasync_tid = 0; 751 ei->i_datasync_tid = 0;
@@ -796,10 +833,10 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
796 if (sbi->s_qf_names[GRPQUOTA]) 833 if (sbi->s_qf_names[GRPQUOTA])
797 seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]); 834 seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
798 835
799 if (sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA) 836 if (test_opt(sb, USRQUOTA))
800 seq_puts(seq, ",usrquota"); 837 seq_puts(seq, ",usrquota");
801 838
802 if (sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA) 839 if (test_opt(sb, GRPQUOTA))
803 seq_puts(seq, ",grpquota"); 840 seq_puts(seq, ",grpquota");
804#endif 841#endif
805} 842}
@@ -926,6 +963,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
926 if (test_opt(sb, NOLOAD)) 963 if (test_opt(sb, NOLOAD))
927 seq_puts(seq, ",norecovery"); 964 seq_puts(seq, ",norecovery");
928 965
966 if (test_opt(sb, DIOREAD_NOLOCK))
967 seq_puts(seq, ",dioread_nolock");
968
929 ext4_show_quota_options(seq, sb); 969 ext4_show_quota_options(seq, sb);
930 970
931 return 0; 971 return 0;
@@ -1109,6 +1149,7 @@ enum {
1109 Opt_stripe, Opt_delalloc, Opt_nodelalloc, 1149 Opt_stripe, Opt_delalloc, Opt_nodelalloc,
1110 Opt_block_validity, Opt_noblock_validity, 1150 Opt_block_validity, Opt_noblock_validity,
1111 Opt_inode_readahead_blks, Opt_journal_ioprio, 1151 Opt_inode_readahead_blks, Opt_journal_ioprio,
1152 Opt_dioread_nolock, Opt_dioread_lock,
1112 Opt_discard, Opt_nodiscard, 1153 Opt_discard, Opt_nodiscard,
1113}; 1154};
1114 1155
@@ -1176,6 +1217,8 @@ static const match_table_t tokens = {
1176 {Opt_auto_da_alloc, "auto_da_alloc=%u"}, 1217 {Opt_auto_da_alloc, "auto_da_alloc=%u"},
1177 {Opt_auto_da_alloc, "auto_da_alloc"}, 1218 {Opt_auto_da_alloc, "auto_da_alloc"},
1178 {Opt_noauto_da_alloc, "noauto_da_alloc"}, 1219 {Opt_noauto_da_alloc, "noauto_da_alloc"},
1220 {Opt_dioread_nolock, "dioread_nolock"},
1221 {Opt_dioread_lock, "dioread_lock"},
1179 {Opt_discard, "discard"}, 1222 {Opt_discard, "discard"},
1180 {Opt_nodiscard, "nodiscard"}, 1223 {Opt_nodiscard, "nodiscard"},
1181 {Opt_err, NULL}, 1224 {Opt_err, NULL},
@@ -1205,6 +1248,66 @@ static ext4_fsblk_t get_sb_block(void **data)
1205} 1248}
1206 1249
1207#define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) 1250#define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
1251static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
1252 "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
1253
1254#ifdef CONFIG_QUOTA
1255static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
1256{
1257 struct ext4_sb_info *sbi = EXT4_SB(sb);
1258 char *qname;
1259
1260 if (sb_any_quota_loaded(sb) &&
1261 !sbi->s_qf_names[qtype]) {
1262 ext4_msg(sb, KERN_ERR,
1263 "Cannot change journaled "
1264 "quota options when quota turned on");
1265 return 0;
1266 }
1267 qname = match_strdup(args);
1268 if (!qname) {
1269 ext4_msg(sb, KERN_ERR,
1270 "Not enough memory for storing quotafile name");
1271 return 0;
1272 }
1273 if (sbi->s_qf_names[qtype] &&
1274 strcmp(sbi->s_qf_names[qtype], qname)) {
1275 ext4_msg(sb, KERN_ERR,
1276 "%s quota file already specified", QTYPE2NAME(qtype));
1277 kfree(qname);
1278 return 0;
1279 }
1280 sbi->s_qf_names[qtype] = qname;
1281 if (strchr(sbi->s_qf_names[qtype], '/')) {
1282 ext4_msg(sb, KERN_ERR,
1283 "quotafile must be on filesystem root");
1284 kfree(sbi->s_qf_names[qtype]);
1285 sbi->s_qf_names[qtype] = NULL;
1286 return 0;
1287 }
1288 set_opt(sbi->s_mount_opt, QUOTA);
1289 return 1;
1290}
1291
1292static int clear_qf_name(struct super_block *sb, int qtype)
1293{
1294
1295 struct ext4_sb_info *sbi = EXT4_SB(sb);
1296
1297 if (sb_any_quota_loaded(sb) &&
1298 sbi->s_qf_names[qtype]) {
1299 ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options"
1300 " when quota turned on");
1301 return 0;
1302 }
1303 /*
1304 * The space will be released later when all options are confirmed
1305 * to be correct
1306 */
1307 sbi->s_qf_names[qtype] = NULL;
1308 return 1;
1309}
1310#endif
1208 1311
1209static int parse_options(char *options, struct super_block *sb, 1312static int parse_options(char *options, struct super_block *sb,
1210 unsigned long *journal_devnum, 1313 unsigned long *journal_devnum,
@@ -1217,8 +1320,7 @@ static int parse_options(char *options, struct super_block *sb,
1217 int data_opt = 0; 1320 int data_opt = 0;
1218 int option; 1321 int option;
1219#ifdef CONFIG_QUOTA 1322#ifdef CONFIG_QUOTA
1220 int qtype, qfmt; 1323 int qfmt;
1221 char *qname;
1222#endif 1324#endif
1223 1325
1224 if (!options) 1326 if (!options)
@@ -1229,19 +1331,31 @@ static int parse_options(char *options, struct super_block *sb,
1229 if (!*p) 1331 if (!*p)
1230 continue; 1332 continue;
1231 1333
1334 /*
1335 * Initialize args struct so we know whether arg was
1336 * found; some options take optional arguments.
1337 */
1338 args[0].to = args[0].from = 0;
1232 token = match_token(p, tokens, args); 1339 token = match_token(p, tokens, args);
1233 switch (token) { 1340 switch (token) {
1234 case Opt_bsd_df: 1341 case Opt_bsd_df:
1342 ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
1235 clear_opt(sbi->s_mount_opt, MINIX_DF); 1343 clear_opt(sbi->s_mount_opt, MINIX_DF);
1236 break; 1344 break;
1237 case Opt_minix_df: 1345 case Opt_minix_df:
1346 ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
1238 set_opt(sbi->s_mount_opt, MINIX_DF); 1347 set_opt(sbi->s_mount_opt, MINIX_DF);
1348
1239 break; 1349 break;
1240 case Opt_grpid: 1350 case Opt_grpid:
1351 ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
1241 set_opt(sbi->s_mount_opt, GRPID); 1352 set_opt(sbi->s_mount_opt, GRPID);
1353
1242 break; 1354 break;
1243 case Opt_nogrpid: 1355 case Opt_nogrpid:
1356 ext4_msg(sb, KERN_WARNING, deprecated_msg, p, "2.6.38");
1244 clear_opt(sbi->s_mount_opt, GRPID); 1357 clear_opt(sbi->s_mount_opt, GRPID);
1358
1245 break; 1359 break;
1246 case Opt_resuid: 1360 case Opt_resuid:
1247 if (match_int(&args[0], &option)) 1361 if (match_int(&args[0], &option))
@@ -1378,14 +1492,13 @@ static int parse_options(char *options, struct super_block *sb,
1378 data_opt = EXT4_MOUNT_WRITEBACK_DATA; 1492 data_opt = EXT4_MOUNT_WRITEBACK_DATA;
1379 datacheck: 1493 datacheck:
1380 if (is_remount) { 1494 if (is_remount) {
1381 if ((sbi->s_mount_opt & EXT4_MOUNT_DATA_FLAGS) 1495 if (test_opt(sb, DATA_FLAGS) != data_opt) {
1382 != data_opt) {
1383 ext4_msg(sb, KERN_ERR, 1496 ext4_msg(sb, KERN_ERR,
1384 "Cannot change data mode on remount"); 1497 "Cannot change data mode on remount");
1385 return 0; 1498 return 0;
1386 } 1499 }
1387 } else { 1500 } else {
1388 sbi->s_mount_opt &= ~EXT4_MOUNT_DATA_FLAGS; 1501 clear_opt(sbi->s_mount_opt, DATA_FLAGS);
1389 sbi->s_mount_opt |= data_opt; 1502 sbi->s_mount_opt |= data_opt;
1390 } 1503 }
1391 break; 1504 break;
@@ -1397,63 +1510,22 @@ static int parse_options(char *options, struct super_block *sb,
1397 break; 1510 break;
1398#ifdef CONFIG_QUOTA 1511#ifdef CONFIG_QUOTA
1399 case Opt_usrjquota: 1512 case Opt_usrjquota:
1400 qtype = USRQUOTA; 1513 if (!set_qf_name(sb, USRQUOTA, &args[0]))
1401 goto set_qf_name;
1402 case Opt_grpjquota:
1403 qtype = GRPQUOTA;
1404set_qf_name:
1405 if (sb_any_quota_loaded(sb) &&
1406 !sbi->s_qf_names[qtype]) {
1407 ext4_msg(sb, KERN_ERR,
1408 "Cannot change journaled "
1409 "quota options when quota turned on");
1410 return 0; 1514 return 0;
1411 } 1515 break;
1412 qname = match_strdup(&args[0]); 1516 case Opt_grpjquota:
1413 if (!qname) { 1517 if (!set_qf_name(sb, GRPQUOTA, &args[0]))
1414 ext4_msg(sb, KERN_ERR,
1415 "Not enough memory for "
1416 "storing quotafile name");
1417 return 0;
1418 }
1419 if (sbi->s_qf_names[qtype] &&
1420 strcmp(sbi->s_qf_names[qtype], qname)) {
1421 ext4_msg(sb, KERN_ERR,
1422 "%s quota file already "
1423 "specified", QTYPE2NAME(qtype));
1424 kfree(qname);
1425 return 0;
1426 }
1427 sbi->s_qf_names[qtype] = qname;
1428 if (strchr(sbi->s_qf_names[qtype], '/')) {
1429 ext4_msg(sb, KERN_ERR,
1430 "quotafile must be on "
1431 "filesystem root");
1432 kfree(sbi->s_qf_names[qtype]);
1433 sbi->s_qf_names[qtype] = NULL;
1434 return 0; 1518 return 0;
1435 }
1436 set_opt(sbi->s_mount_opt, QUOTA);
1437 break; 1519 break;
1438 case Opt_offusrjquota: 1520 case Opt_offusrjquota:
1439 qtype = USRQUOTA; 1521 if (!clear_qf_name(sb, USRQUOTA))
1440 goto clear_qf_name; 1522 return 0;
1523 break;
1441 case Opt_offgrpjquota: 1524 case Opt_offgrpjquota:
1442 qtype = GRPQUOTA; 1525 if (!clear_qf_name(sb, GRPQUOTA))
1443clear_qf_name:
1444 if (sb_any_quota_loaded(sb) &&
1445 sbi->s_qf_names[qtype]) {
1446 ext4_msg(sb, KERN_ERR, "Cannot change "
1447 "journaled quota options when "
1448 "quota turned on");
1449 return 0; 1526 return 0;
1450 }
1451 /*
1452 * The space will be released later when all options
1453 * are confirmed to be correct
1454 */
1455 sbi->s_qf_names[qtype] = NULL;
1456 break; 1527 break;
1528
1457 case Opt_jqfmt_vfsold: 1529 case Opt_jqfmt_vfsold:
1458 qfmt = QFMT_VFS_OLD; 1530 qfmt = QFMT_VFS_OLD;
1459 goto set_qf_format; 1531 goto set_qf_format;
@@ -1518,10 +1590,11 @@ set_qf_format:
1518 clear_opt(sbi->s_mount_opt, BARRIER); 1590 clear_opt(sbi->s_mount_opt, BARRIER);
1519 break; 1591 break;
1520 case Opt_barrier: 1592 case Opt_barrier:
1521 if (match_int(&args[0], &option)) { 1593 if (args[0].from) {
1522 set_opt(sbi->s_mount_opt, BARRIER); 1594 if (match_int(&args[0], &option))
1523 break; 1595 return 0;
1524 } 1596 } else
1597 option = 1; /* No argument, default to 1 */
1525 if (option) 1598 if (option)
1526 set_opt(sbi->s_mount_opt, BARRIER); 1599 set_opt(sbi->s_mount_opt, BARRIER);
1527 else 1600 else
@@ -1594,10 +1667,11 @@ set_qf_format:
1594 set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC); 1667 set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC);
1595 break; 1668 break;
1596 case Opt_auto_da_alloc: 1669 case Opt_auto_da_alloc:
1597 if (match_int(&args[0], &option)) { 1670 if (args[0].from) {
1598 clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC); 1671 if (match_int(&args[0], &option))
1599 break; 1672 return 0;
1600 } 1673 } else
1674 option = 1; /* No argument, default to 1 */
1601 if (option) 1675 if (option)
1602 clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC); 1676 clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC);
1603 else 1677 else
@@ -1609,6 +1683,12 @@ set_qf_format:
1609 case Opt_nodiscard: 1683 case Opt_nodiscard:
1610 clear_opt(sbi->s_mount_opt, DISCARD); 1684 clear_opt(sbi->s_mount_opt, DISCARD);
1611 break; 1685 break;
1686 case Opt_dioread_nolock:
1687 set_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
1688 break;
1689 case Opt_dioread_lock:
1690 clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
1691 break;
1612 default: 1692 default:
1613 ext4_msg(sb, KERN_ERR, 1693 ext4_msg(sb, KERN_ERR,
1614 "Unrecognized mount option \"%s\" " 1694 "Unrecognized mount option \"%s\" "
@@ -1618,18 +1698,13 @@ set_qf_format:
1618 } 1698 }
1619#ifdef CONFIG_QUOTA 1699#ifdef CONFIG_QUOTA
1620 if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) { 1700 if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
1621 if ((sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA) && 1701 if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
1622 sbi->s_qf_names[USRQUOTA])
1623 clear_opt(sbi->s_mount_opt, USRQUOTA); 1702 clear_opt(sbi->s_mount_opt, USRQUOTA);
1624 1703
1625 if ((sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA) && 1704 if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
1626 sbi->s_qf_names[GRPQUOTA])
1627 clear_opt(sbi->s_mount_opt, GRPQUOTA); 1705 clear_opt(sbi->s_mount_opt, GRPQUOTA);
1628 1706
1629 if ((sbi->s_qf_names[USRQUOTA] && 1707 if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
1630 (sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA)) ||
1631 (sbi->s_qf_names[GRPQUOTA] &&
1632 (sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA))) {
1633 ext4_msg(sb, KERN_ERR, "old and new quota " 1708 ext4_msg(sb, KERN_ERR, "old and new quota "
1634 "format mixing"); 1709 "format mixing");
1635 return 0; 1710 return 0;
@@ -2432,8 +2507,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2432 def_mount_opts = le32_to_cpu(es->s_default_mount_opts); 2507 def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
2433 if (def_mount_opts & EXT4_DEFM_DEBUG) 2508 if (def_mount_opts & EXT4_DEFM_DEBUG)
2434 set_opt(sbi->s_mount_opt, DEBUG); 2509 set_opt(sbi->s_mount_opt, DEBUG);
2435 if (def_mount_opts & EXT4_DEFM_BSDGROUPS) 2510 if (def_mount_opts & EXT4_DEFM_BSDGROUPS) {
2511 ext4_msg(sb, KERN_WARNING, deprecated_msg, "bsdgroups",
2512 "2.6.38");
2436 set_opt(sbi->s_mount_opt, GRPID); 2513 set_opt(sbi->s_mount_opt, GRPID);
2514 }
2437 if (def_mount_opts & EXT4_DEFM_UID16) 2515 if (def_mount_opts & EXT4_DEFM_UID16)
2438 set_opt(sbi->s_mount_opt, NO_UID32); 2516 set_opt(sbi->s_mount_opt, NO_UID32);
2439#ifdef CONFIG_EXT4_FS_XATTR 2517#ifdef CONFIG_EXT4_FS_XATTR
@@ -2445,11 +2523,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2445 set_opt(sbi->s_mount_opt, POSIX_ACL); 2523 set_opt(sbi->s_mount_opt, POSIX_ACL);
2446#endif 2524#endif
2447 if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA) 2525 if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
2448 sbi->s_mount_opt |= EXT4_MOUNT_JOURNAL_DATA; 2526 set_opt(sbi->s_mount_opt, JOURNAL_DATA);
2449 else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED) 2527 else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
2450 sbi->s_mount_opt |= EXT4_MOUNT_ORDERED_DATA; 2528 set_opt(sbi->s_mount_opt, ORDERED_DATA);
2451 else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK) 2529 else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK)
2452 sbi->s_mount_opt |= EXT4_MOUNT_WRITEBACK_DATA; 2530 set_opt(sbi->s_mount_opt, WRITEBACK_DATA);
2453 2531
2454 if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC) 2532 if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC)
2455 set_opt(sbi->s_mount_opt, ERRORS_PANIC); 2533 set_opt(sbi->s_mount_opt, ERRORS_PANIC);
@@ -2477,7 +2555,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2477 goto failed_mount; 2555 goto failed_mount;
2478 2556
2479 sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 2557 sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
2480 ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 2558 (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
2481 2559
2482 if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && 2560 if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV &&
2483 (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || 2561 (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) ||
@@ -2766,7 +2844,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2766 EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER)) { 2844 EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER)) {
2767 ext4_msg(sb, KERN_ERR, "required journal recovery " 2845 ext4_msg(sb, KERN_ERR, "required journal recovery "
2768 "suppressed and not mounted read-only"); 2846 "suppressed and not mounted read-only");
2769 goto failed_mount4; 2847 goto failed_mount_wq;
2770 } else { 2848 } else {
2771 clear_opt(sbi->s_mount_opt, DATA_FLAGS); 2849 clear_opt(sbi->s_mount_opt, DATA_FLAGS);
2772 set_opt(sbi->s_mount_opt, WRITEBACK_DATA); 2850 set_opt(sbi->s_mount_opt, WRITEBACK_DATA);
@@ -2779,7 +2857,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2779 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, 2857 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0,
2780 JBD2_FEATURE_INCOMPAT_64BIT)) { 2858 JBD2_FEATURE_INCOMPAT_64BIT)) {
2781 ext4_msg(sb, KERN_ERR, "Failed to set 64-bit journal feature"); 2859 ext4_msg(sb, KERN_ERR, "Failed to set 64-bit journal feature");
2782 goto failed_mount4; 2860 goto failed_mount_wq;
2783 } 2861 }
2784 2862
2785 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { 2863 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
@@ -2818,7 +2896,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2818 (sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE)) { 2896 (sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE)) {
2819 ext4_msg(sb, KERN_ERR, "Journal does not support " 2897 ext4_msg(sb, KERN_ERR, "Journal does not support "
2820 "requested data journaling mode"); 2898 "requested data journaling mode");
2821 goto failed_mount4; 2899 goto failed_mount_wq;
2822 } 2900 }
2823 default: 2901 default:
2824 break; 2902 break;
@@ -2826,13 +2904,17 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
2826 set_task_ioprio(sbi->s_journal->j_task, journal_ioprio); 2904 set_task_ioprio(sbi->s_journal->j_task, journal_ioprio);
2827 2905
2828no_journal: 2906no_journal:
2829
2830 if (test_opt(sb, NOBH)) { 2907 if (test_opt(sb, NOBH)) {
2831 if (!(test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)) { 2908 if (!(test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)) {
2832 ext4_msg(sb, KERN_WARNING, "Ignoring nobh option - " 2909 ext4_msg(sb, KERN_WARNING, "Ignoring nobh option - "
2833 "its supported only with writeback mode"); 2910 "its supported only with writeback mode");
2834 clear_opt(sbi->s_mount_opt, NOBH); 2911 clear_opt(sbi->s_mount_opt, NOBH);
2835 } 2912 }
2913 if (test_opt(sb, DIOREAD_NOLOCK)) {
2914 ext4_msg(sb, KERN_WARNING, "dioread_nolock option is "
2915 "not supported with nobh mode");
2916 goto failed_mount_wq;
2917 }
2836 } 2918 }
2837 EXT4_SB(sb)->dio_unwritten_wq = create_workqueue("ext4-dio-unwritten"); 2919 EXT4_SB(sb)->dio_unwritten_wq = create_workqueue("ext4-dio-unwritten");
2838 if (!EXT4_SB(sb)->dio_unwritten_wq) { 2920 if (!EXT4_SB(sb)->dio_unwritten_wq) {
@@ -2897,6 +2979,18 @@ no_journal:
2897 "requested data journaling mode"); 2979 "requested data journaling mode");
2898 clear_opt(sbi->s_mount_opt, DELALLOC); 2980 clear_opt(sbi->s_mount_opt, DELALLOC);
2899 } 2981 }
2982 if (test_opt(sb, DIOREAD_NOLOCK)) {
2983 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
2984 ext4_msg(sb, KERN_WARNING, "Ignoring dioread_nolock "
2985 "option - requested data journaling mode");
2986 clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
2987 }
2988 if (sb->s_blocksize < PAGE_SIZE) {
2989 ext4_msg(sb, KERN_WARNING, "Ignoring dioread_nolock "
2990 "option - block size is too small");
2991 clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK);
2992 }
2993 }
2900 2994
2901 err = ext4_setup_system_zone(sb); 2995 err = ext4_setup_system_zone(sb);
2902 if (err) { 2996 if (err) {
@@ -3360,10 +3454,9 @@ static void ext4_clear_journal_err(struct super_block *sb,
3360 char nbuf[16]; 3454 char nbuf[16];
3361 3455
3362 errstr = ext4_decode_error(sb, j_errno, nbuf); 3456 errstr = ext4_decode_error(sb, j_errno, nbuf);
3363 ext4_warning(sb, __func__, "Filesystem error recorded " 3457 ext4_warning(sb, "Filesystem error recorded "
3364 "from previous mount: %s", errstr); 3458 "from previous mount: %s", errstr);
3365 ext4_warning(sb, __func__, "Marking fs in need of " 3459 ext4_warning(sb, "Marking fs in need of filesystem check.");
3366 "filesystem check.");
3367 3460
3368 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; 3461 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
3369 es->s_state |= cpu_to_le16(EXT4_ERROR_FS); 3462 es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
@@ -3514,7 +3607,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
3514 ext4_abort(sb, __func__, "Abort forced by user"); 3607 ext4_abort(sb, __func__, "Abort forced by user");
3515 3608
3516 sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | 3609 sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
3517 ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); 3610 (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
3518 3611
3519 es = sbi->s_es; 3612 es = sbi->s_es;
3520 3613
@@ -3917,9 +4010,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
3917 ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); 4010 ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
3918 int err = 0; 4011 int err = 0;
3919 int offset = off & (sb->s_blocksize - 1); 4012 int offset = off & (sb->s_blocksize - 1);
3920 int tocopy;
3921 int journal_quota = EXT4_SB(sb)->s_qf_names[type] != NULL; 4013 int journal_quota = EXT4_SB(sb)->s_qf_names[type] != NULL;
3922 size_t towrite = len;
3923 struct buffer_head *bh; 4014 struct buffer_head *bh;
3924 handle_t *handle = journal_current_handle(); 4015 handle_t *handle = journal_current_handle();
3925 4016
@@ -3929,52 +4020,53 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
3929 (unsigned long long)off, (unsigned long long)len); 4020 (unsigned long long)off, (unsigned long long)len);
3930 return -EIO; 4021 return -EIO;
3931 } 4022 }
4023 /*
4024 * Since we account only one data block in transaction credits,
4025 * then it is impossible to cross a block boundary.
4026 */
4027 if (sb->s_blocksize - offset < len) {
4028 ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
4029 " cancelled because not block aligned",
4030 (unsigned long long)off, (unsigned long long)len);
4031 return -EIO;
4032 }
4033
3932 mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); 4034 mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
3933 while (towrite > 0) { 4035 bh = ext4_bread(handle, inode, blk, 1, &err);
3934 tocopy = sb->s_blocksize - offset < towrite ? 4036 if (!bh)
3935 sb->s_blocksize - offset : towrite; 4037 goto out;
3936 bh = ext4_bread(handle, inode, blk, 1, &err); 4038 if (journal_quota) {
3937 if (!bh) 4039 err = ext4_journal_get_write_access(handle, bh);
4040 if (err) {
4041 brelse(bh);
3938 goto out; 4042 goto out;
3939 if (journal_quota) {
3940 err = ext4_journal_get_write_access(handle, bh);
3941 if (err) {
3942 brelse(bh);
3943 goto out;
3944 }
3945 } 4043 }
3946 lock_buffer(bh);
3947 memcpy(bh->b_data+offset, data, tocopy);
3948 flush_dcache_page(bh->b_page);
3949 unlock_buffer(bh);
3950 if (journal_quota)
3951 err = ext4_handle_dirty_metadata(handle, NULL, bh);
3952 else {
3953 /* Always do at least ordered writes for quotas */
3954 err = ext4_jbd2_file_inode(handle, inode);
3955 mark_buffer_dirty(bh);
3956 }
3957 brelse(bh);
3958 if (err)
3959 goto out;
3960 offset = 0;
3961 towrite -= tocopy;
3962 data += tocopy;
3963 blk++;
3964 } 4044 }
4045 lock_buffer(bh);
4046 memcpy(bh->b_data+offset, data, len);
4047 flush_dcache_page(bh->b_page);
4048 unlock_buffer(bh);
4049 if (journal_quota)
4050 err = ext4_handle_dirty_metadata(handle, NULL, bh);
4051 else {
4052 /* Always do at least ordered writes for quotas */
4053 err = ext4_jbd2_file_inode(handle, inode);
4054 mark_buffer_dirty(bh);
4055 }
4056 brelse(bh);
3965out: 4057out:
3966 if (len == towrite) { 4058 if (err) {
3967 mutex_unlock(&inode->i_mutex); 4059 mutex_unlock(&inode->i_mutex);
3968 return err; 4060 return err;
3969 } 4061 }
3970 if (inode->i_size < off+len-towrite) { 4062 if (inode->i_size < off + len) {
3971 i_size_write(inode, off+len-towrite); 4063 i_size_write(inode, off + len);
3972 EXT4_I(inode)->i_disksize = inode->i_size; 4064 EXT4_I(inode)->i_disksize = inode->i_size;
3973 } 4065 }
3974 inode->i_mtime = inode->i_ctime = CURRENT_TIME; 4066 inode->i_mtime = inode->i_ctime = CURRENT_TIME;
3975 ext4_mark_inode_dirty(handle, inode); 4067 ext4_mark_inode_dirty(handle, inode);
3976 mutex_unlock(&inode->i_mutex); 4068 mutex_unlock(&inode->i_mutex);
3977 return len - towrite; 4069 return len;
3978} 4070}
3979 4071
3980#endif 4072#endif
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index f3a2f7ed45aa..efc16a4b7ceb 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -227,7 +227,8 @@ ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
227 ea_bdebug(bh, "b_count=%d, refcount=%d", 227 ea_bdebug(bh, "b_count=%d, refcount=%d",
228 atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount)); 228 atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
229 if (ext4_xattr_check_block(bh)) { 229 if (ext4_xattr_check_block(bh)) {
230bad_block: ext4_error(inode->i_sb, __func__, 230bad_block:
231 ext4_error(inode->i_sb,
231 "inode %lu: bad block %llu", inode->i_ino, 232 "inode %lu: bad block %llu", inode->i_ino,
232 EXT4_I(inode)->i_file_acl); 233 EXT4_I(inode)->i_file_acl);
233 error = -EIO; 234 error = -EIO;
@@ -267,7 +268,7 @@ ext4_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
267 void *end; 268 void *end;
268 int error; 269 int error;
269 270
270 if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR)) 271 if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
271 return -ENODATA; 272 return -ENODATA;
272 error = ext4_get_inode_loc(inode, &iloc); 273 error = ext4_get_inode_loc(inode, &iloc);
273 if (error) 274 if (error)
@@ -371,7 +372,7 @@ ext4_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
371 ea_bdebug(bh, "b_count=%d, refcount=%d", 372 ea_bdebug(bh, "b_count=%d, refcount=%d",
372 atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount)); 373 atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
373 if (ext4_xattr_check_block(bh)) { 374 if (ext4_xattr_check_block(bh)) {
374 ext4_error(inode->i_sb, __func__, 375 ext4_error(inode->i_sb,
375 "inode %lu: bad block %llu", inode->i_ino, 376 "inode %lu: bad block %llu", inode->i_ino,
376 EXT4_I(inode)->i_file_acl); 377 EXT4_I(inode)->i_file_acl);
377 error = -EIO; 378 error = -EIO;
@@ -396,7 +397,7 @@ ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
396 void *end; 397 void *end;
397 int error; 398 int error;
398 399
399 if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR)) 400 if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
400 return 0; 401 return 0;
401 error = ext4_get_inode_loc(inode, &iloc); 402 error = ext4_get_inode_loc(inode, &iloc);
402 if (error) 403 if (error)
@@ -665,9 +666,8 @@ ext4_xattr_block_find(struct inode *inode, struct ext4_xattr_info *i,
665 atomic_read(&(bs->bh->b_count)), 666 atomic_read(&(bs->bh->b_count)),
666 le32_to_cpu(BHDR(bs->bh)->h_refcount)); 667 le32_to_cpu(BHDR(bs->bh)->h_refcount));
667 if (ext4_xattr_check_block(bs->bh)) { 668 if (ext4_xattr_check_block(bs->bh)) {
668 ext4_error(sb, __func__, 669 ext4_error(sb, "inode %lu: bad block %llu",
669 "inode %lu: bad block %llu", inode->i_ino, 670 inode->i_ino, EXT4_I(inode)->i_file_acl);
670 EXT4_I(inode)->i_file_acl);
671 error = -EIO; 671 error = -EIO;
672 goto cleanup; 672 goto cleanup;
673 } 673 }
@@ -880,9 +880,8 @@ cleanup_dquot:
880 goto cleanup; 880 goto cleanup;
881 881
882bad_block: 882bad_block:
883 ext4_error(inode->i_sb, __func__, 883 ext4_error(inode->i_sb, "inode %lu: bad block %llu",
884 "inode %lu: bad block %llu", inode->i_ino, 884 inode->i_ino, EXT4_I(inode)->i_file_acl);
885 EXT4_I(inode)->i_file_acl);
886 goto cleanup; 885 goto cleanup;
887 886
888#undef header 887#undef header
@@ -908,7 +907,7 @@ ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
908 is->s.base = is->s.first = IFIRST(header); 907 is->s.base = is->s.first = IFIRST(header);
909 is->s.here = is->s.first; 908 is->s.here = is->s.first;
910 is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size; 909 is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
911 if (EXT4_I(inode)->i_state & EXT4_STATE_XATTR) { 910 if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) {
912 error = ext4_xattr_check_names(IFIRST(header), is->s.end); 911 error = ext4_xattr_check_names(IFIRST(header), is->s.end);
913 if (error) 912 if (error)
914 return error; 913 return error;
@@ -940,10 +939,10 @@ ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
940 header = IHDR(inode, ext4_raw_inode(&is->iloc)); 939 header = IHDR(inode, ext4_raw_inode(&is->iloc));
941 if (!IS_LAST_ENTRY(s->first)) { 940 if (!IS_LAST_ENTRY(s->first)) {
942 header->h_magic = cpu_to_le32(EXT4_XATTR_MAGIC); 941 header->h_magic = cpu_to_le32(EXT4_XATTR_MAGIC);
943 EXT4_I(inode)->i_state |= EXT4_STATE_XATTR; 942 ext4_set_inode_state(inode, EXT4_STATE_XATTR);
944 } else { 943 } else {
945 header->h_magic = cpu_to_le32(0); 944 header->h_magic = cpu_to_le32(0);
946 EXT4_I(inode)->i_state &= ~EXT4_STATE_XATTR; 945 ext4_clear_inode_state(inode, EXT4_STATE_XATTR);
947 } 946 }
948 return 0; 947 return 0;
949} 948}
@@ -986,8 +985,8 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
986 if (strlen(name) > 255) 985 if (strlen(name) > 255)
987 return -ERANGE; 986 return -ERANGE;
988 down_write(&EXT4_I(inode)->xattr_sem); 987 down_write(&EXT4_I(inode)->xattr_sem);
989 no_expand = EXT4_I(inode)->i_state & EXT4_STATE_NO_EXPAND; 988 no_expand = ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND);
990 EXT4_I(inode)->i_state |= EXT4_STATE_NO_EXPAND; 989 ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
991 990
992 error = ext4_get_inode_loc(inode, &is.iloc); 991 error = ext4_get_inode_loc(inode, &is.iloc);
993 if (error) 992 if (error)
@@ -997,10 +996,10 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
997 if (error) 996 if (error)
998 goto cleanup; 997 goto cleanup;
999 998
1000 if (EXT4_I(inode)->i_state & EXT4_STATE_NEW) { 999 if (ext4_test_inode_state(inode, EXT4_STATE_NEW)) {
1001 struct ext4_inode *raw_inode = ext4_raw_inode(&is.iloc); 1000 struct ext4_inode *raw_inode = ext4_raw_inode(&is.iloc);
1002 memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size); 1001 memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
1003 EXT4_I(inode)->i_state &= ~EXT4_STATE_NEW; 1002 ext4_clear_inode_state(inode, EXT4_STATE_NEW);
1004 } 1003 }
1005 1004
1006 error = ext4_xattr_ibody_find(inode, &i, &is); 1005 error = ext4_xattr_ibody_find(inode, &i, &is);
@@ -1052,7 +1051,7 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
1052 ext4_xattr_update_super_block(handle, inode->i_sb); 1051 ext4_xattr_update_super_block(handle, inode->i_sb);
1053 inode->i_ctime = ext4_current_time(inode); 1052 inode->i_ctime = ext4_current_time(inode);
1054 if (!value) 1053 if (!value)
1055 EXT4_I(inode)->i_state &= ~EXT4_STATE_NO_EXPAND; 1054 ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
1056 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc); 1055 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
1057 /* 1056 /*
1058 * The bh is consumed by ext4_mark_iloc_dirty, even with 1057 * The bh is consumed by ext4_mark_iloc_dirty, even with
@@ -1067,7 +1066,7 @@ cleanup:
1067 brelse(is.iloc.bh); 1066 brelse(is.iloc.bh);
1068 brelse(bs.bh); 1067 brelse(bs.bh);
1069 if (no_expand == 0) 1068 if (no_expand == 0)
1070 EXT4_I(inode)->i_state &= ~EXT4_STATE_NO_EXPAND; 1069 ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
1071 up_write(&EXT4_I(inode)->xattr_sem); 1070 up_write(&EXT4_I(inode)->xattr_sem);
1072 return error; 1071 return error;
1073} 1072}
@@ -1195,9 +1194,8 @@ retry:
1195 if (!bh) 1194 if (!bh)
1196 goto cleanup; 1195 goto cleanup;
1197 if (ext4_xattr_check_block(bh)) { 1196 if (ext4_xattr_check_block(bh)) {
1198 ext4_error(inode->i_sb, __func__, 1197 ext4_error(inode->i_sb, "inode %lu: bad block %llu",
1199 "inode %lu: bad block %llu", inode->i_ino, 1198 inode->i_ino, EXT4_I(inode)->i_file_acl);
1200 EXT4_I(inode)->i_file_acl);
1201 error = -EIO; 1199 error = -EIO;
1202 goto cleanup; 1200 goto cleanup;
1203 } 1201 }
@@ -1302,6 +1300,8 @@ retry:
1302 1300
1303 /* Remove the chosen entry from the inode */ 1301 /* Remove the chosen entry from the inode */
1304 error = ext4_xattr_ibody_set(handle, inode, &i, is); 1302 error = ext4_xattr_ibody_set(handle, inode, &i, is);
1303 if (error)
1304 goto cleanup;
1305 1305
1306 entry = IFIRST(header); 1306 entry = IFIRST(header);
1307 if (entry_size + EXT4_XATTR_SIZE(size) >= new_extra_isize) 1307 if (entry_size + EXT4_XATTR_SIZE(size) >= new_extra_isize)
@@ -1372,16 +1372,14 @@ ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
1372 goto cleanup; 1372 goto cleanup;
1373 bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl); 1373 bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
1374 if (!bh) { 1374 if (!bh) {
1375 ext4_error(inode->i_sb, __func__, 1375 ext4_error(inode->i_sb, "inode %lu: block %llu read error",
1376 "inode %lu: block %llu read error", inode->i_ino, 1376 inode->i_ino, EXT4_I(inode)->i_file_acl);
1377 EXT4_I(inode)->i_file_acl);
1378 goto cleanup; 1377 goto cleanup;
1379 } 1378 }
1380 if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) || 1379 if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) ||
1381 BHDR(bh)->h_blocks != cpu_to_le32(1)) { 1380 BHDR(bh)->h_blocks != cpu_to_le32(1)) {
1382 ext4_error(inode->i_sb, __func__, 1381 ext4_error(inode->i_sb, "inode %lu: bad block %llu",
1383 "inode %lu: bad block %llu", inode->i_ino, 1382 inode->i_ino, EXT4_I(inode)->i_file_acl);
1384 EXT4_I(inode)->i_file_acl);
1385 goto cleanup; 1383 goto cleanup;
1386 } 1384 }
1387 ext4_xattr_release_block(handle, inode, bh); 1385 ext4_xattr_release_block(handle, inode, bh);
@@ -1506,7 +1504,7 @@ again:
1506 } 1504 }
1507 bh = sb_bread(inode->i_sb, ce->e_block); 1505 bh = sb_bread(inode->i_sb, ce->e_block);
1508 if (!bh) { 1506 if (!bh) {
1509 ext4_error(inode->i_sb, __func__, 1507 ext4_error(inode->i_sb,
1510 "inode %lu: block %lu read error", 1508 "inode %lu: block %lu read error",
1511 inode->i_ino, (unsigned long) ce->e_block); 1509 inode->i_ino, (unsigned long) ce->e_block);
1512 } else if (le32_to_cpu(BHDR(bh)->h_refcount) >= 1510 } else if (le32_to_cpu(BHDR(bh)->h_refcount) >=
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 05:32:10 -0500