Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

11 files changed, 199 insertions, 152 deletions

diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index 1e068535b58b..9a9378b4eb5a 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -31,55 +31,8 @@
 #define udf_clear_bit(nr, addr) ext2_clear_bit(nr, addr)
 #define udf_set_bit(nr, addr) ext2_set_bit(nr, addr)
 #define udf_test_bit(nr, addr) ext2_test_bit(nr, addr)
-#define udf_find_first_one_bit(addr, size) find_first_one_bit(addr, size)
 #define udf_find_next_one_bit(addr, size, offset) \
-                find_next_one_bit(addr, size, offset)
-
-#define leBPL_to_cpup(x) leNUM_to_cpup(BITS_PER_LONG, x)
-#define leNUM_to_cpup(x, y) xleNUM_to_cpup(x, y)
-#define xleNUM_to_cpup(x, y) (le ## x ## _to_cpup(y))
-#define uintBPL_t uint(BITS_PER_LONG)
-#define uint(x) xuint(x)
-#define xuint(x) __le ## x
-
-static inline int find_next_one_bit(void *addr, int size, int offset)
-{
-        uintBPL_t *p = ((uintBPL_t *) addr) + (offset / BITS_PER_LONG);
-        int result = offset & ~(BITS_PER_LONG - 1);
-        unsigned long tmp;
-
-        if (offset >= size)
-                return size;
-        size -= result;
-        offset &= (BITS_PER_LONG - 1);
-        if (offset) {
-                tmp = leBPL_to_cpup(p++);
-                tmp &= ~0UL << offset;
-                if (size < BITS_PER_LONG)
-                        goto found_first;
-                if (tmp)
-                        goto found_middle;
-                size -= BITS_PER_LONG;
-                result += BITS_PER_LONG;
-        }
-        while (size & ~(BITS_PER_LONG - 1)) {
-                tmp = leBPL_to_cpup(p++);
-                if (tmp)
-                        goto found_middle;
-                result += BITS_PER_LONG;
-                size -= BITS_PER_LONG;
-        }
-        if (!size)
-                return result;
-        tmp = leBPL_to_cpup(p);
-found_first:
-        tmp &= ~0UL >> (BITS_PER_LONG - size);
-found_middle:
-        return result + ffz(~tmp);
-}
-
-#define find_first_one_bit(addr, size)\
-        find_next_one_bit((addr), (size), 0)
+                ext2_find_next_bit(addr, size, offset)
 
 static int read_block_bitmap(struct super_block *sb,
                              struct udf_bitmap *bitmap, unsigned int block,
@@ -172,9 +125,8 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
 
         mutex_lock(&sbi->s_alloc_mutex);
         partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
-        if (bloc->logicalBlockNum < 0 ||
-            (bloc->logicalBlockNum + count) >
-                partmap->s_partition_len) {
+        if (bloc->logicalBlockNum + count < count ||
+            (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
                 udf_debug("%d < %d || %d + %d > %d\n",
                           bloc->logicalBlockNum, 0, bloc->logicalBlockNum,
                           count, partmap->s_partition_len);
@@ -208,7 +160,7 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
                                         ((char *)bh->b_data)[(bit + i) >> 3]);
                         } else {
                                 if (inode)
-                                        vfs_dq_free_block(inode, 1);
+                                        dquot_free_block(inode, 1);
                                 udf_add_free_space(sb, sbi->s_partition, 1);
                         }
                 }
@@ -260,11 +212,11 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
                 while (bit < (sb->s_blocksize << 3) && block_count > 0) {
                         if (!udf_test_bit(bit, bh->b_data))
                                 goto out;
-                        else if (vfs_dq_prealloc_block(inode, 1))
+                        else if (dquot_prealloc_block(inode, 1))
                                 goto out;
                         else if (!udf_clear_bit(bit, bh->b_data)) {
                                 udf_debug("bit already cleared for block %d\n", bit);
-                                vfs_dq_free_block(inode, 1);
+                                dquot_free_block(inode, 1);
                                 goto out;
                         }
                         block_count--;
@@ -390,10 +342,14 @@ got_block:
         /*
          * Check quota for allocation of this block.
          */
-        if (inode && vfs_dq_alloc_block(inode, 1)) {
-                mutex_unlock(&sbi->s_alloc_mutex);
-                *err = -EDQUOT;
-                return 0;
+        if (inode) {
+                int ret = dquot_alloc_block(inode, 1);
+
+                if (ret) {
+                        mutex_unlock(&sbi->s_alloc_mutex);
+                        *err = ret;
+                        return 0;
+                }
         }
 
         newblock = bit + (block_group << (sb->s_blocksize_bits + 3)) -
@@ -436,11 +392,10 @@ static void udf_table_free_blocks(struct super_block *sb,
 
         mutex_lock(&sbi->s_alloc_mutex);
         partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
-        if (bloc->logicalBlockNum < 0 ||
-            (bloc->logicalBlockNum + count) >
-                partmap->s_partition_len) {
+        if (bloc->logicalBlockNum + count < count ||
+            (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
                 udf_debug("%d < %d || %d + %d > %d\n",
-                          bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
+                          bloc->logicalBlockNum, 0, bloc->logicalBlockNum, count,
                           partmap->s_partition_len);
                 goto error_return;
         }
@@ -449,7 +404,7 @@ static void udf_table_free_blocks(struct super_block *sb,
         /* We do this up front - There are some error conditions that
            could occure, but.. oh well */
         if (inode)
-                vfs_dq_free_block(inode, count);
+                dquot_free_block(inode, count);
         udf_add_free_space(sb, sbi->s_partition, count);
 
         start = bloc->logicalBlockNum + offset;
@@ -547,7 +502,7 @@ static void udf_table_free_blocks(struct super_block *sb,
                 }
 
                 if (epos.offset + (2 * adsize) > sb->s_blocksize) {
-                        char *sptr, *dptr;
+                        unsigned char *sptr, *dptr;
                         int loffset;
 
                         brelse(oepos.bh);
@@ -694,7 +649,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
                 epos.offset -= adsize;
 
                 alloc_count = (elen >> sb->s_blocksize_bits);
-                if (inode && vfs_dq_prealloc_block(inode,
+                if (inode && dquot_prealloc_block(inode,
                         alloc_count > block_count ? block_count : alloc_count))
                         alloc_count = 0;
                 else if (alloc_count > block_count) {
@@ -797,12 +752,13 @@ static int udf_table_new_block(struct super_block *sb,
         newblock = goal_eloc.logicalBlockNum;
         goal_eloc.logicalBlockNum++;
         goal_elen -= sb->s_blocksize;
-
-        if (inode && vfs_dq_alloc_block(inode, 1)) {
-                brelse(goal_epos.bh);
-                mutex_unlock(&sbi->s_alloc_mutex);
-                *err = -EDQUOT;
-                return 0;
+        if (inode) {
+                *err = dquot_alloc_block(inode, 1);
+                if (*err) {
+                        brelse(goal_epos.bh);
+                        mutex_unlock(&sbi->s_alloc_mutex);
+                        return 0;
+                }
         }
 
         if (goal_elen)
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 61d9a76a3a69..f0f2a436251e 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -45,8 +45,8 @@ static int do_udf_readdir(struct inode *dir, struct file *filp,
         int block, iblock;
         loff_t nf_pos = (filp->f_pos - 1) << 2;
         int flen;
-        char *fname = NULL;
-        char *nameptr;
+        unsigned char *fname = NULL;
+        unsigned char *nameptr;
         uint16_t liu;
         uint8_t lfi;
         loff_t size = udf_ext0_offset(dir) + dir->i_size;
diff --git a/fs/udf/file.c b/fs/udf/file.c
index b80cbd78833c..4b6a46ccbf46 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -34,6 +34,7 @@
 #include <linux/errno.h>
 #include <linux/smp_lock.h>
 #include <linux/pagemap.h>
+#include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 #include <linux/aio.h>
 
@@ -196,6 +197,7 @@ static int udf_release_file(struct inode *inode, struct file *filp)
                 mutex_lock(&inode->i_mutex);
                 lock_kernel();
                 udf_discard_prealloc(inode);
+                udf_truncate_tail_extent(inode);
                 unlock_kernel();
                 mutex_unlock(&inode->i_mutex);
         }
@@ -206,7 +208,7 @@ const struct file_operations udf_file_operations = {
         .read                   = do_sync_read,
         .aio_read               = generic_file_aio_read,
         .ioctl                  = udf_ioctl,
-        .open                   = generic_file_open,
+        .open                   = dquot_file_open,
         .mmap                   = generic_file_mmap,
         .write                  = do_sync_write,
         .aio_write              = udf_file_aio_write,
@@ -216,6 +218,29 @@ const struct file_operations udf_file_operations = {
         .llseek                 = generic_file_llseek,
 };
 
+int udf_setattr(struct dentry *dentry, struct iattr *iattr)
+{
+        struct inode *inode = dentry->d_inode;
+        int error;
+
+        error = inode_change_ok(inode, iattr);
+        if (error)
+                return error;
+
+        if (iattr->ia_valid & ATTR_SIZE)
+                dquot_initialize(inode);
+
+        if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+            (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
+                error = dquot_transfer(inode, iattr);
+                if (error)
+                        return error;
+        }
+
+        return inode_setattr(inode, iattr);
+}
+
 const struct inode_operations udf_file_inode_operations = {
-        .truncate = udf_truncate,
+        .truncate               = udf_truncate,
+        .setattr                = udf_setattr,
 };
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index c10fa39f97e2..fb68c9cd0c3e 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -36,8 +36,8 @@ void udf_free_inode(struct inode *inode)
          * Note: we must free any quota before locking the superblock,
          * as writing the quota to disk may need the lock as well.
          */
-        vfs_dq_free_inode(inode);
-        vfs_dq_drop(inode);
+        dquot_free_inode(inode);
+        dquot_drop(inode);
 
         clear_inode(inode);
 
@@ -61,7 +61,7 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
         struct super_block *sb = dir->i_sb;
         struct udf_sb_info *sbi = UDF_SB(sb);
         struct inode *inode;
-        int block;
+        int block, ret;
         uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
         struct udf_inode_info *iinfo;
         struct udf_inode_info *dinfo = UDF_I(dir);
@@ -153,12 +153,14 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
         insert_inode_hash(inode);
         mark_inode_dirty(inode);
 
-        if (vfs_dq_alloc_inode(inode)) {
-                vfs_dq_drop(inode);
+        dquot_initialize(inode);
+        ret = dquot_alloc_inode(inode);
+        if (ret) {
+                dquot_drop(inode);
                 inode->i_flags |= S_NOQUOTA;
                 inode->i_nlink = 0;
                 iput(inode);
-                *err = -EDQUOT;
+                *err = ret;
                 return NULL;
         }
 
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 6d24c2c63f93..8a3fbd177cab 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -36,6 +36,7 @@
 #include <linux/pagemap.h>
 #include <linux/buffer_head.h>
 #include <linux/writeback.h>
+#include <linux/quotaops.h>
 #include <linux/slab.h>
 #include <linux/crc-itu-t.h>
 
@@ -70,6 +71,9 @@ static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
 void udf_delete_inode(struct inode *inode)
 {
+        if (!is_bad_inode(inode))
+                dquot_initialize(inode);
+
         truncate_inode_pages(&inode->i_data, 0);
 
         if (is_bad_inode(inode))
@@ -97,15 +101,19 @@ no_delete:
  */
 void udf_clear_inode(struct inode *inode)
 {
-        struct udf_inode_info *iinfo;
-        if (!(inode->i_sb->s_flags & MS_RDONLY)) {
-                lock_kernel();
-                udf_truncate_tail_extent(inode);
-                unlock_kernel();
-                write_inode_now(inode, 0);
-                invalidate_inode_buffers(inode);
+        struct udf_inode_info *iinfo = UDF_I(inode);
+
+        if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB &&
+            inode->i_size != iinfo->i_lenExtents) {
+                printk(KERN_WARNING "UDF-fs (%s): Inode %lu (mode %o) has "
+                        "inode size %llu different from extent length %llu. "
+                        "Filesystem need not be standards compliant.\n",
+                        inode->i_sb->s_id, inode->i_ino, inode->i_mode,
+                        (unsigned long long)inode->i_size,
+                        (unsigned long long)iinfo->i_lenExtents);
         }
-        iinfo = UDF_I(inode);
+
+        dquot_drop(inode);
         kfree(iinfo->i_ext.i_data);
         iinfo->i_ext.i_data = NULL;
 }
@@ -198,7 +206,6 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
         int newblock;
         struct buffer_head *dbh = NULL;
         struct kernel_lb_addr eloc;
-        uint32_t elen;
         uint8_t alloctype;
         struct extent_position epos;
 
@@ -273,12 +280,11 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
         eloc.logicalBlockNum = *block;
         eloc.partitionReferenceNum =
                                 iinfo->i_location.partitionReferenceNum;
-        elen = inode->i_sb->s_blocksize;
-        iinfo->i_lenExtents = elen;
+        iinfo->i_lenExtents = inode->i_size;
         epos.bh = NULL;
         epos.block = iinfo->i_location;
         epos.offset = udf_file_entry_alloc_offset(inode);
-        udf_add_aext(inode, &epos, &eloc, elen, 0);
+        udf_add_aext(inode, &epos, &eloc, inode->i_size, 0);
         /* UniqueID stuff */
 
         brelse(epos.bh);
@@ -1308,7 +1314,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                 break;
         case ICBTAG_FILE_TYPE_SYMLINK:
                 inode->i_data.a_ops = &udf_symlink_aops;
-                inode->i_op = &page_symlink_inode_operations;
+                inode->i_op = &udf_symlink_inode_operations;
                 inode->i_mode = S_IFLNK | S_IRWXUGO;
                 break;
         case ICBTAG_FILE_TYPE_MAIN:
@@ -1373,12 +1379,12 @@ static mode_t udf_convert_permissions(struct fileEntry *fe)
         return mode;
 }
 
-int udf_write_inode(struct inode *inode, int sync)
+int udf_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
         int ret;
 
         lock_kernel();
-        ret = udf_update_inode(inode, sync);
+        ret = udf_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
         unlock_kernel();
 
         return ret;
@@ -1402,20 +1408,19 @@ static int udf_update_inode(struct inode *inode, int do_sync)
         unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
         struct udf_inode_info *iinfo = UDF_I(inode);
 
-        bh = udf_tread(inode->i_sb,
-                        udf_get_lb_pblock(inode->i_sb,
-                                          &iinfo->i_location, 0));
+        bh = udf_tgetblk(inode->i_sb,
+                        udf_get_lb_pblock(inode->i_sb, &iinfo->i_location, 0));
         if (!bh) {
-                udf_debug("bread failure\n");
-                return -EIO;
+                udf_debug("getblk failure\n");
+                return -ENOMEM;
         }
 
-        memset(bh->b_data, 0x00, inode->i_sb->s_blocksize);
-
+        lock_buffer(bh);
+        memset(bh->b_data, 0, inode->i_sb->s_blocksize);
         fe = (struct fileEntry *)bh->b_data;
         efe = (struct extendedFileEntry *)bh->b_data;
 
-        if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_USE)) {
+        if (iinfo->i_use) {
                 struct unallocSpaceEntry *use =
                         (struct unallocSpaceEntry *)bh->b_data;
 
@@ -1423,20 +1428,18 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                 memcpy(bh->b_data + sizeof(struct unallocSpaceEntry),
                        iinfo->i_ext.i_data, inode->i_sb->s_blocksize -
                                         sizeof(struct unallocSpaceEntry));
+                use->descTag.tagIdent = cpu_to_le16(TAG_IDENT_USE);
+                use->descTag.tagLocation =
+                                cpu_to_le32(iinfo->i_location.logicalBlockNum);
                 crclen = sizeof(struct unallocSpaceEntry) +
                                 iinfo->i_lenAlloc - sizeof(struct tag);
-                use->descTag.tagLocation = cpu_to_le32(
-                                                iinfo->i_location.
-                                                        logicalBlockNum);
                 use->descTag.descCRCLength = cpu_to_le16(crclen);
                 use->descTag.descCRC = cpu_to_le16(crc_itu_t(0, (char *)use +
                                                            sizeof(struct tag),
                                                            crclen));
                 use->descTag.tagChecksum = udf_tag_checksum(&use->descTag);
 
-                mark_buffer_dirty(bh);
-                brelse(bh);
-                return err;
+                goto out;
         }
 
         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_FORGET))
@@ -1591,18 +1594,21 @@ static int udf_update_inode(struct inode *inode, int do_sync)
         fe->descTag.tagSerialNum = cpu_to_le16(sbi->s_serial_number);
         fe->descTag.tagLocation = cpu_to_le32(
                                         iinfo->i_location.logicalBlockNum);
-        crclen += iinfo->i_lenEAttr + iinfo->i_lenAlloc -
-                                                                sizeof(struct tag);
+        crclen += iinfo->i_lenEAttr + iinfo->i_lenAlloc - sizeof(struct tag);
         fe->descTag.descCRCLength = cpu_to_le16(crclen);
         fe->descTag.descCRC = cpu_to_le16(crc_itu_t(0, (char *)fe + sizeof(struct tag),
                                                   crclen));
         fe->descTag.tagChecksum = udf_tag_checksum(&fe->descTag);
 
+out:
+        set_buffer_uptodate(bh);
+        unlock_buffer(bh);
+
         /* write the data blocks */
         mark_buffer_dirty(bh);
         if (do_sync) {
                 sync_dirty_buffer(bh);
-                if (buffer_req(bh) && !buffer_uptodate(bh)) {
+                if (buffer_write_io_error(bh)) {
                         printk(KERN_WARNING "IO error syncing udf inode "
                                 "[%s:%08lx]\n", inode->i_sb->s_id,
                                 inode->i_ino);
@@ -1672,7 +1678,7 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
                 return -1;
 
         if (epos->offset + (2 * adsize) > inode->i_sb->s_blocksize) {
-                char *sptr, *dptr;
+                unsigned char *sptr, *dptr;
                 struct buffer_head *nbh;
                 int err, loffset;
                 struct kernel_lb_addr obloc = epos->block;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 21dad8c608f9..75816025f95f 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -34,8 +34,8 @@
 #include <linux/crc-itu-t.h>
 #include <linux/exportfs.h>
 
-static inline int udf_match(int len1, const char *name1, int len2,
-                            const char *name2)
+static inline int udf_match(int len1, const unsigned char *name1, int len2,
+                            const unsigned char *name2)
 {
         if (len1 != len2)
                 return 0;
@@ -142,15 +142,15 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
 }
 
 static struct fileIdentDesc *udf_find_entry(struct inode *dir,
-                                            struct qstr *child,
+                                            const struct qstr *child,
                                             struct udf_fileident_bh *fibh,
                                             struct fileIdentDesc *cfi)
 {
         struct fileIdentDesc *fi = NULL;
         loff_t f_pos;
         int block, flen;
-        char *fname = NULL;
-        char *nameptr;
+        unsigned char *fname = NULL;
+        unsigned char *nameptr;
         uint8_t lfi;
         uint16_t liu;
         loff_t size;
@@ -308,7 +308,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
 {
         struct super_block *sb = dir->i_sb;
         struct fileIdentDesc *fi = NULL;
-        char *name = NULL;
+        unsigned char *name = NULL;
         int namelen;
         loff_t f_pos;
         loff_t size = udf_ext0_offset(dir) + dir->i_size;
@@ -408,15 +408,6 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
         }
 
 add:
-        /* Is there any extent whose size we need to round up? */
-        if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB && elen) {
-                elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
-                if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
-                        epos.offset -= sizeof(struct short_ad);
-                else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
-                        epos.offset -= sizeof(struct long_ad);
-                udf_write_aext(dir, &epos, &eloc, elen, 1);
-        }
         f_pos += nfidlen;
 
         if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB &&
@@ -439,6 +430,7 @@ add:
                 udf_current_aext(dir, &epos, &eloc, &elen, 1);
         }
 
+        /* Entry fits into current block? */
         if (sb->s_blocksize - fibh->eoffset >= nfidlen) {
                 fibh->soffset = fibh->eoffset;
                 fibh->eoffset += nfidlen;
@@ -462,6 +454,16 @@ add:
                                 (fibh->sbh->b_data + fibh->soffset);
                 }
         } else {
+                /* Round up last extent in the file */
+                elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
+                if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+                        epos.offset -= sizeof(struct short_ad);
+                else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+                        epos.offset -= sizeof(struct long_ad);
+                udf_write_aext(dir, &epos, &eloc, elen, 1);
+                dinfo->i_lenExtents = (dinfo->i_lenExtents + sb->s_blocksize
+                                        - 1) & ~(sb->s_blocksize - 1);
+
                 fibh->soffset = fibh->eoffset - sb->s_blocksize;
                 fibh->eoffset += nfidlen - sb->s_blocksize;
                 if (fibh->sbh != fibh->ebh) {
@@ -508,6 +510,20 @@ add:
                 dir->i_size += nfidlen;
                 if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                         dinfo->i_lenAlloc += nfidlen;
+                else {
+                        /* Find the last extent and truncate it to proper size */
+                        while (udf_next_aext(dir, &epos, &eloc, &elen, 1) ==
+                                (EXT_RECORDED_ALLOCATED >> 30))
+                                ;
+                        elen -= dinfo->i_lenExtents - dir->i_size;
+                        if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+                                epos.offset -= sizeof(struct short_ad);
+                        else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+                                epos.offset -= sizeof(struct long_ad);
+                        udf_write_aext(dir, &epos, &eloc, elen, 1);
+                        dinfo->i_lenExtents = dir->i_size;
+                }
+
                 mark_inode_dirty(dir);
                 goto out_ok;
         } else {
@@ -547,6 +563,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
         int err;
         struct udf_inode_info *iinfo;
 
+        dquot_initialize(dir);
+
         lock_kernel();
         inode = udf_new_inode(dir, mode, &err);
         if (!inode) {
@@ -600,6 +618,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
         if (!old_valid_dev(rdev))
                 return -EINVAL;
 
+        dquot_initialize(dir);
+
         lock_kernel();
         err = -EIO;
         inode = udf_new_inode(dir, mode, &err);
@@ -646,6 +666,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         struct udf_inode_info *dinfo = UDF_I(dir);
         struct udf_inode_info *iinfo;
 
+        dquot_initialize(dir);
+
         lock_kernel();
         err = -EMLINK;
         if (dir->i_nlink >= (256 << sizeof(dir->i_nlink)) - 1)
@@ -783,6 +805,8 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
         struct fileIdentDesc *fi, cfi;
         struct kernel_lb_addr tloc;
 
+        dquot_initialize(dir);
+
         retval = -ENOENT;
         lock_kernel();
         fi = udf_find_entry(dir, &dentry->d_name, &fibh, &cfi);
@@ -829,6 +853,8 @@ static int udf_unlink(struct inode *dir, struct dentry *dentry)
         struct fileIdentDesc cfi;
         struct kernel_lb_addr tloc;
 
+        dquot_initialize(dir);
+
         retval = -ENOENT;
         lock_kernel();
         fi = udf_find_entry(dir, &dentry->d_name, &fibh, &cfi);
@@ -869,20 +895,22 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
 {
         struct inode *inode;
         struct pathComponent *pc;
-        char *compstart;
+        const char *compstart;
         struct udf_fileident_bh fibh;
         struct extent_position epos = {};
         int eoffset, elen = 0;
         struct fileIdentDesc *fi;
         struct fileIdentDesc cfi;
-        char *ea;
+        uint8_t *ea;
         int err;
         int block;
-        char *name = NULL;
+        unsigned char *name = NULL;
         int namelen;
         struct buffer_head *bh;
         struct udf_inode_info *iinfo;
 
+        dquot_initialize(dir);
+
         lock_kernel();
         inode = udf_new_inode(dir, S_IFLNK, &err);
         if (!inode)
@@ -897,7 +925,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
         iinfo = UDF_I(inode);
         inode->i_mode = S_IFLNK | S_IRWXUGO;
         inode->i_data.a_ops = &udf_symlink_aops;
-        inode->i_op = &page_symlink_inode_operations;
+        inode->i_op = &udf_symlink_inode_operations;
 
         if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
                 struct kernel_lb_addr eloc;
@@ -922,7 +950,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
                 block = udf_get_pblock(inode->i_sb, block,
                                 iinfo->i_location.partitionReferenceNum,
                                 0);
-                epos.bh = udf_tread(inode->i_sb, block);
+                epos.bh = udf_tgetblk(inode->i_sb, block);
                 lock_buffer(epos.bh);
                 memset(epos.bh->b_data, 0x00, inode->i_sb->s_blocksize);
                 set_buffer_uptodate(epos.bh);
@@ -954,7 +982,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
 
                 pc = (struct pathComponent *)(ea + elen);
 
-                compstart = (char *)symname;
+                compstart = symname;
 
                 do {
                         symname++;
@@ -999,6 +1027,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
         inode->i_size = elen;
         if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
                 iinfo->i_lenAlloc = inode->i_size;
+        else
+                udf_truncate_tail_extent(inode);
         mark_inode_dirty(inode);
 
         fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
@@ -1051,6 +1081,8 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
         int err;
         struct buffer_head *bh;
 
+        dquot_initialize(dir);
+
         lock_kernel();
         if (inode->i_nlink >= (256 << sizeof(inode->i_nlink)) - 1) {
                 unlock_kernel();
@@ -1113,6 +1145,9 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
         struct kernel_lb_addr tloc;
         struct udf_inode_info *old_iinfo = UDF_I(old_inode);
 
+        dquot_initialize(old_dir);
+        dquot_initialize(new_dir);
+
         lock_kernel();
         ofi = udf_find_entry(old_dir, &old_dentry->d_name, &ofibh, &ocfi);
         if (ofi) {
@@ -1358,6 +1393,7 @@ const struct export_operations udf_export_ops = {
 const struct inode_operations udf_dir_inode_operations = {
         .lookup                         = udf_lookup,
         .create                         = udf_create,
+        .setattr                        = udf_setattr,
         .link                           = udf_link,
         .unlink                         = udf_unlink,
         .symlink                        = udf_symlink,
@@ -1366,3 +1402,9 @@ const struct inode_operations udf_dir_inode_operations = {
         .mknod                          = udf_mknod,
         .rename                         = udf_rename,
 };
+const struct inode_operations udf_symlink_inode_operations = {
+        .readlink       = generic_readlink,
+        .follow_link    = page_follow_link_light,
+        .put_link       = page_put_link,
+        .setattr        = udf_setattr,
+};
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index 4b540ee632d5..745eb209be0c 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -24,7 +24,6 @@
 
 #include <linux/fs.h>
 #include <linux/string.h>
-#include <linux/slab.h>
 #include <linux/buffer_head.h>
 
 uint32_t udf_get_pblock(struct super_block *sb, uint32_t block,
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 9d1b8c2e6c45..1e4543cbcd27 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1078,21 +1078,39 @@ static int udf_fill_partdesc_info(struct super_block *sb,
         return 0;
 }
 
-static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
+static void udf_find_vat_block(struct super_block *sb, int p_index,
+                               int type1_index, sector_t start_block)
 {
         struct udf_sb_info *sbi = UDF_SB(sb);
         struct udf_part_map *map = &sbi->s_partmaps[p_index];
+        sector_t vat_block;
         struct kernel_lb_addr ino;
+
+        /*
+         * VAT file entry is in the last recorded block. Some broken disks have
+         * it a few blocks before so try a bit harder...
+         */
+        ino.partitionReferenceNum = type1_index;
+        for (vat_block = start_block;
+             vat_block >= map->s_partition_root &&
+             vat_block >= start_block - 3 &&
+             !sbi->s_vat_inode; vat_block--) {
+                ino.logicalBlockNum = vat_block - map->s_partition_root;
+                sbi->s_vat_inode = udf_iget(sb, &ino);
+        }
+}
+
+static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
+{
+        struct udf_sb_info *sbi = UDF_SB(sb);
+        struct udf_part_map *map = &sbi->s_partmaps[p_index];
         struct buffer_head *bh = NULL;
         struct udf_inode_info *vati;
         uint32_t pos;
         struct virtualAllocationTable20 *vat20;
         sector_t blocks = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;
 
-        /* VAT file entry is in the last recorded block */
-        ino.partitionReferenceNum = type1_index;
-        ino.logicalBlockNum = sbi->s_last_block - map->s_partition_root;
-        sbi->s_vat_inode = udf_iget(sb, &ino);
+        udf_find_vat_block(sb, p_index, type1_index, sbi->s_last_block);
         if (!sbi->s_vat_inode &&
             sbi->s_last_block != blocks - 1) {
                 printk(KERN_NOTICE "UDF-fs: Failed to read VAT inode from the"
@@ -1100,9 +1118,7 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
                        "block of the device (%lu).\n",
                        (unsigned long)sbi->s_last_block,
                        (unsigned long)blocks - 1);
-                ino.partitionReferenceNum = type1_index;
-                ino.logicalBlockNum = blocks - 1 - map->s_partition_root;
-                sbi->s_vat_inode = udf_iget(sb, &ino);
+                udf_find_vat_block(sb, p_index, type1_index, blocks - 1);
         }
         if (!sbi->s_vat_inode)
                 return 1;
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index c3265e1385d4..16064787d2b7 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -26,18 +26,17 @@
 #include <linux/time.h>
 #include <linux/mm.h>
 #include <linux/stat.h>
-#include <linux/slab.h>
 #include <linux/pagemap.h>
 #include <linux/smp_lock.h>
 #include <linux/buffer_head.h>
 #include "udf_i.h"
 
-static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen,
-                           char *to)
+static void udf_pc_to_char(struct super_block *sb, unsigned char *from,
+                           int fromlen, unsigned char *to)
 {
         struct pathComponent *pc;
         int elen = 0;
-        char *p = to;
+        unsigned char *p = to;
 
         while (elen < fromlen) {
                 pc = (struct pathComponent *)(from + elen);
@@ -75,9 +74,9 @@ static int udf_symlink_filler(struct file *file, struct page *page)
 {
         struct inode *inode = page->mapping->host;
         struct buffer_head *bh = NULL;
-        char *symlink;
+        unsigned char *symlink;
         int err = -EIO;
-        char *p = kmap(page);
+        unsigned char *p = kmap(page);
         struct udf_inode_info *iinfo;
 
         lock_kernel();
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 8d46f4294ee7..702a1148e702 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -76,6 +76,7 @@ extern const struct inode_operations udf_dir_inode_operations;
 extern const struct file_operations udf_dir_operations;
 extern const struct inode_operations udf_file_inode_operations;
 extern const struct file_operations udf_file_operations;
+extern const struct inode_operations udf_symlink_inode_operations;
 extern const struct address_space_operations udf_aops;
 extern const struct address_space_operations udf_adinicb_aops;
 extern const struct address_space_operations udf_symlink_aops;
@@ -131,7 +132,7 @@ extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
 /* file.c */
 extern int udf_ioctl(struct inode *, struct file *, unsigned int,
                      unsigned long);
-
+extern int udf_setattr(struct dentry *dentry, struct iattr *iattr);
 /* inode.c */
 extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *);
 extern int udf_sync_inode(struct inode *);
@@ -142,7 +143,7 @@ extern void udf_truncate(struct inode *);
 extern void udf_read_inode(struct inode *);
 extern void udf_delete_inode(struct inode *);
 extern void udf_clear_inode(struct inode *);
-extern int udf_write_inode(struct inode *, int);
+extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
 extern long udf_block_map(struct inode *, sector_t);
 extern int udf_extend_file(struct inode *, struct extent_position *,
                            struct kernel_long_ad *, sector_t);
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index cefa8c8913e6..d03a90b6ad69 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -24,6 +24,7 @@
 #include <linux/string.h>       /* for memset */
 #include <linux/nls.h>
 #include <linux/crc-itu-t.h>
+#include <linux/slab.h>
 
 #include "udf_sb.h"