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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 15:59:42 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 15:59:42 -0500
commitae9a8c4bdc91202b4236372eed53c54d2297c71b (patch)
tree4596680ee808334d246ad2f93bdd743d76c3741a
parent32190f0afbf4f1c0a9142e5a886a078ee0b794fd (diff)
parent232530680290ba94ca37852ab10d9556ea28badf (diff)
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o: - Add support for online resizing of file systems with bigalloc - Fix a two data corruption bugs involving DAX, as well as a corruption bug after a crash during a racing fallocate and delayed allocation. - Finally, a number of cleanups and optimizations. * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: improve smp scalability for inode generation ext4: add support for online resizing with bigalloc ext4: mention noload when recovering on read-only device Documentation: fix little inconsistencies ext4: convert timers to use timer_setup() jbd2: convert timers to use timer_setup() ext4: remove duplicate extended attributes defs ext4: add ext4_should_use_dax() ext4: add sanity check for encryption + DAX ext4: prevent data corruption with journaling + DAX ext4: prevent data corruption with inline data + DAX ext4: fix interaction between i_size, fallocate, and delalloc after a crash ext4: retry allocations conservatively ext4: Switch to iomap for SEEK_HOLE / SEEK_DATA ext4: Add iomap support for inline data iomap: Add IOMAP_F_DATA_INLINE flag iomap: Switch from blkno to disk offset
Diffstat
-rw-r--r--fs/buffer.c4
-rw-r--r--fs/dax.c2
-rw-r--r--fs/ext2/inode.c4
-rw-r--r--fs/ext4/Kconfig1
-rw-r--r--fs/ext4/balloc.c15
-rw-r--r--fs/ext4/ext4.h50
-rw-r--r--fs/ext4/extents.c6
-rw-r--r--fs/ext4/file.c263
-rw-r--r--fs/ext4/ialloc.c4
-rw-r--r--fs/ext4/inline.c43
-rw-r--r--fs/ext4/inode.c153
-rw-r--r--fs/ext4/ioctl.c30
-rw-r--r--fs/ext4/mballoc.c28
-rw-r--r--fs/ext4/resize.c104
-rw-r--r--fs/ext4/super.c27
-rw-r--r--fs/iomap.c13
-rw-r--r--fs/jbd2/journal.c9
-rw-r--r--fs/nfsd/blocklayout.c4
-rw-r--r--fs/xfs/xfs_iomap.c6
-rw-r--r--include/linux/iomap.h15
20 files changed, 274 insertions, 507 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 32ce01f0f95f..49b7e9bdcd1d 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1979,8 +1979,8 @@ iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,
1979 case IOMAP_MAPPED: 1979 case IOMAP_MAPPED:
1980 if (offset >= i_size_read(inode)) 1980 if (offset >= i_size_read(inode))
1981 set_buffer_new(bh); 1981 set_buffer_new(bh);
1982 bh->b_blocknr = (iomap->blkno >> (inode->i_blkbits - 9)) + 1982 bh->b_blocknr = (iomap->addr + offset - iomap->offset) >>
1983 ((offset - iomap->offset) >> inode->i_blkbits); 1983 inode->i_blkbits;
1984 set_buffer_mapped(bh); 1984 set_buffer_mapped(bh);
1985 break; 1985 break;
1986 } 1986 }
diff --git a/fs/dax.c b/fs/dax.c
index f001d8c72a06..f3a44a7c14b3 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -938,7 +938,7 @@ EXPORT_SYMBOL_GPL(__dax_zero_page_range);
938 938
939static sector_t dax_iomap_sector(struct iomap *iomap, loff_t pos) 939static sector_t dax_iomap_sector(struct iomap *iomap, loff_t pos)
940{ 940{
941 return iomap->blkno + (((pos & PAGE_MASK) - iomap->offset) >> 9); 941 return (iomap->addr + (pos & PAGE_MASK) - iomap->offset) >> 9;
942} 942}
943 943
944static loff_t 944static loff_t
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 1442a4c734c8..9b2ac55ac34f 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -821,11 +821,11 @@ static int ext2_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
821 821
822 if (ret == 0) { 822 if (ret == 0) {
823 iomap->type = IOMAP_HOLE; 823 iomap->type = IOMAP_HOLE;
824 iomap->blkno = IOMAP_NULL_BLOCK; 824 iomap->addr = IOMAP_NULL_ADDR;
825 iomap->length = 1 << blkbits; 825 iomap->length = 1 << blkbits;
826 } else { 826 } else {
827 iomap->type = IOMAP_MAPPED; 827 iomap->type = IOMAP_MAPPED;
828 iomap->blkno = (sector_t)bno << (blkbits - 9); 828 iomap->addr = (u64)bno << blkbits;
829 iomap->length = (u64)ret << blkbits; 829 iomap->length = (u64)ret << blkbits;
830 iomap->flags |= IOMAP_F_MERGED; 830 iomap->flags |= IOMAP_F_MERGED;
831 } 831 }
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index e38039fd96ff..73b850f5659c 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -37,6 +37,7 @@ config EXT4_FS
37 select CRC16 37 select CRC16
38 select CRYPTO 38 select CRYPTO
39 select CRYPTO_CRC32C 39 select CRYPTO_CRC32C
40 select FS_IOMAP
40 help 41 help
41 This is the next generation of the ext3 filesystem. 42 This is the next generation of the ext3 filesystem.
42 43
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index d5ddfb96c83c..a943e568292e 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -601,22 +601,21 @@ int ext4_claim_free_clusters(struct ext4_sb_info *sbi,
601 * ext4_should_retry_alloc() is called when ENOSPC is returned, and if 601 * ext4_should_retry_alloc() is called when ENOSPC is returned, and if
602 * it is profitable to retry the operation, this function will wait 602 * it is profitable to retry the operation, this function will wait
603 * for the current or committing transaction to complete, and then 603 * for the current or committing transaction to complete, and then
604 * return TRUE. 604 * return TRUE. We will only retry once.
605 *
606 * if the total number of retries exceed three times, return FALSE.
607 */ 605 */
608int ext4_should_retry_alloc(struct super_block *sb, int *retries) 606int ext4_should_retry_alloc(struct super_block *sb, int *retries)
609{ 607{
610 if (!ext4_has_free_clusters(EXT4_SB(sb), 1, 0) || 608 if (!ext4_has_free_clusters(EXT4_SB(sb), 1, 0) ||
611 (*retries)++ > 3 || 609 (*retries)++ > 1 ||
612 !EXT4_SB(sb)->s_journal) 610 !EXT4_SB(sb)->s_journal)
613 return 0; 611 return 0;
614 612
615 jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
616
617 smp_mb(); 613 smp_mb();
618 if (EXT4_SB(sb)->s_mb_free_pending) 614 if (EXT4_SB(sb)->s_mb_free_pending == 0)
619 jbd2_journal_force_commit_nested(EXT4_SB(sb)->s_journal); 615 return 0;
616
617 jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
618 jbd2_journal_force_commit_nested(EXT4_SB(sb)->s_journal);
620 return 1; 619 return 1;
621} 620}
622 621
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 27f38bb5046d..4e091eae38b1 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -544,8 +544,8 @@ struct ext4_new_group_data {
544 __u64 inode_table; 544 __u64 inode_table;
545 __u32 blocks_count; 545 __u32 blocks_count;
546 __u16 reserved_blocks; 546 __u16 reserved_blocks;
547 __u16 unused; 547 __u16 mdata_blocks;
548 __u32 free_blocks_count; 548 __u32 free_clusters_count;
549}; 549};
550 550
551/* Indexes used to index group tables in ext4_new_group_data */ 551/* Indexes used to index group tables in ext4_new_group_data */
@@ -643,43 +643,6 @@ enum {
643#define EXT4_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT 643#define EXT4_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
644#define EXT4_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY 644#define EXT4_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
645 645
646#ifndef FS_IOC_FSGETXATTR
647/* Until the uapi changes get merged for project quota... */
648
649#define FS_IOC_FSGETXATTR _IOR('X', 31, struct fsxattr)
650#define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr)
651
652/*
653 * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.
654 */
655struct fsxattr {
656 __u32 fsx_xflags; /* xflags field value (get/set) */
657 __u32 fsx_extsize; /* extsize field value (get/set)*/
658 __u32 fsx_nextents; /* nextents field value (get) */
659 __u32 fsx_projid; /* project identifier (get/set) */
660 unsigned char fsx_pad[12];
661};
662
663/*
664 * Flags for the fsx_xflags field
665 */
666#define FS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
667#define FS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
668#define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
669#define FS_XFLAG_APPEND 0x00000010 /* all writes append */
670#define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
671#define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
672#define FS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
673#define FS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
674#define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
675#define FS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
676#define FS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
677#define FS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
678#define FS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
679#define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
680#define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
681#endif /* !defined(FS_IOC_FSGETXATTR) */
682
683#define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR 646#define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR
684#define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR 647#define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR
685 648
@@ -1391,8 +1354,6 @@ struct ext4_sb_info {
1391 int s_first_ino; 1354 int s_first_ino;
1392 unsigned int s_inode_readahead_blks; 1355 unsigned int s_inode_readahead_blks;
1393 unsigned int s_inode_goal; 1356 unsigned int s_inode_goal;
1394 spinlock_t s_next_gen_lock;
1395 u32 s_next_generation;
1396 u32 s_hash_seed[4]; 1357 u32 s_hash_seed[4];
1397 int s_def_hash_version; 1358 int s_def_hash_version;
1398 int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */ 1359 int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */
@@ -2514,9 +2475,6 @@ extern void ext4_da_update_reserve_space(struct inode *inode,
2514 int used, int quota_claim); 2475 int used, int quota_claim);
2515extern int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk, 2476extern int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk,
2516 ext4_fsblk_t pblk, ext4_lblk_t len); 2477 ext4_fsblk_t pblk, ext4_lblk_t len);
2517extern int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk,
2518 unsigned int map_len,
2519 struct extent_status *result);
2520 2478
2521/* indirect.c */ 2479/* indirect.c */
2522extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode, 2480extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
@@ -3047,6 +3005,10 @@ extern struct buffer_head *ext4_get_first_inline_block(struct inode *inode,
3047extern int ext4_inline_data_fiemap(struct inode *inode, 3005extern int ext4_inline_data_fiemap(struct inode *inode,
3048 struct fiemap_extent_info *fieinfo, 3006 struct fiemap_extent_info *fieinfo,
3049 int *has_inline, __u64 start, __u64 len); 3007 int *has_inline, __u64 start, __u64 len);
3008
3009struct iomap;
3010extern int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap);
3011
3050extern int ext4_try_to_evict_inline_data(handle_t *handle, 3012extern int ext4_try_to_evict_inline_data(handle_t *handle,
3051 struct inode *inode, 3013 struct inode *inode,
3052 int needed); 3014 int needed);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 97f0fd06728d..07bca11749d4 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4794,7 +4794,8 @@ static long ext4_zero_range(struct file *file, loff_t offset,
4794 } 4794 }
4795 4795
4796 if (!(mode & FALLOC_FL_KEEP_SIZE) && 4796 if (!(mode & FALLOC_FL_KEEP_SIZE) &&
4797 offset + len > i_size_read(inode)) { 4797 (offset + len > i_size_read(inode) ||
4798 offset + len > EXT4_I(inode)->i_disksize)) {
4798 new_size = offset + len; 4799 new_size = offset + len;
4799 ret = inode_newsize_ok(inode, new_size); 4800 ret = inode_newsize_ok(inode, new_size);
4800 if (ret) 4801 if (ret)
@@ -4965,7 +4966,8 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
4965 } 4966 }
4966 4967
4967 if (!(mode & FALLOC_FL_KEEP_SIZE) && 4968 if (!(mode & FALLOC_FL_KEEP_SIZE) &&
4968 offset + len > i_size_read(inode)) { 4969 (offset + len > i_size_read(inode) ||
4970 offset + len > EXT4_I(inode)->i_disksize)) {
4969 new_size = offset + len; 4971 new_size = offset + len;
4970 ret = inode_newsize_ok(inode, new_size); 4972 ret = inode_newsize_ok(inode, new_size);
4971 if (ret) 4973 if (ret)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index b937078bcff3..ad204d2724ac 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -21,6 +21,7 @@
21 21
22#include <linux/time.h> 22#include <linux/time.h>
23#include <linux/fs.h> 23#include <linux/fs.h>
24#include <linux/iomap.h>
24#include <linux/mount.h> 25#include <linux/mount.h>
25#include <linux/path.h> 26#include <linux/path.h>
26#include <linux/dax.h> 27#include <linux/dax.h>
@@ -424,248 +425,6 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
424} 425}
425 426
426/* 427/*
427 * Here we use ext4_map_blocks() to get a block mapping for a extent-based
428 * file rather than ext4_ext_walk_space() because we can introduce
429 * SEEK_DATA/SEEK_HOLE for block-mapped and extent-mapped file at the same
430 * function. When extent status tree has been fully implemented, it will
431 * track all extent status for a file and we can directly use it to
432 * retrieve the offset for SEEK_DATA/SEEK_HOLE.
433 */
434
435/*
436 * When we retrieve the offset for SEEK_DATA/SEEK_HOLE, we would need to
437 * lookup page cache to check whether or not there has some data between
438 * [startoff, endoff] because, if this range contains an unwritten extent,
439 * we determine this extent as a data or a hole according to whether the
440 * page cache has data or not.
441 */
442static int ext4_find_unwritten_pgoff(struct inode *inode,
443 int whence,
444 ext4_lblk_t end_blk,
445 loff_t *offset)
446{
447 struct pagevec pvec;
448 unsigned int blkbits;
449 pgoff_t index;
450 pgoff_t end;
451 loff_t endoff;
452 loff_t startoff;
453 loff_t lastoff;
454 int found = 0;
455
456 blkbits = inode->i_sb->s_blocksize_bits;
457 startoff = *offset;
458 lastoff = startoff;
459 endoff = (loff_t)end_blk << blkbits;
460
461 index = startoff >> PAGE_SHIFT;
462 end = (endoff - 1) >> PAGE_SHIFT;
463
464 pagevec_init(&pvec, 0);
465 do {
466 int i;
467 unsigned long nr_pages;
468
469 nr_pages = pagevec_lookup_range(&pvec, inode->i_mapping,
470 &index, end);
471 if (nr_pages == 0)
472 break;
473
474 for (i = 0; i < nr_pages; i++) {
475 struct page *page = pvec.pages[i];
476 struct buffer_head *bh, *head;
477
478 /*
479 * If current offset is smaller than the page offset,
480 * there is a hole at this offset.
481 */
482 if (whence == SEEK_HOLE && lastoff < endoff &&
483 lastoff < page_offset(pvec.pages[i])) {
484 found = 1;
485 *offset = lastoff;
486 goto out;
487 }
488
489 lock_page(page);
490
491 if (unlikely(page->mapping != inode->i_mapping)) {
492 unlock_page(page);
493 continue;
494 }
495
496 if (!page_has_buffers(page)) {
497 unlock_page(page);
498 continue;
499 }
500
501 if (page_has_buffers(page)) {
502 lastoff = page_offset(page);
503 bh = head = page_buffers(page);
504 do {
505 if (lastoff + bh->b_size <= startoff)
506 goto next;
507 if (buffer_uptodate(bh) ||
508 buffer_unwritten(bh)) {
509 if (whence == SEEK_DATA)
510 found = 1;
511 } else {
512 if (whence == SEEK_HOLE)
513 found = 1;
514 }
515 if (found) {
516 *offset = max_t(loff_t,
517 startoff, lastoff);
518 unlock_page(page);
519 goto out;
520 }
521next:
522 lastoff += bh->b_size;
523 bh = bh->b_this_page;
524 } while (bh != head);
525 }
526
527 lastoff = page_offset(page) + PAGE_SIZE;
528 unlock_page(page);
529 }
530
531 pagevec_release(&pvec);
532 } while (index <= end);
533
534 /* There are no pages upto endoff - that would be a hole in there. */
535 if (whence == SEEK_HOLE && lastoff < endoff) {
536 found = 1;
537 *offset = lastoff;
538 }
539out:
540 pagevec_release(&pvec);
541 return found;
542}
543
544/*
545 * ext4_seek_data() retrieves the offset for SEEK_DATA.
546 */
547static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize)
548{
549 struct inode *inode = file->f_mapping->host;
550 struct extent_status es;
551 ext4_lblk_t start, last, end;
552 loff_t dataoff, isize;
553 int blkbits;
554 int ret;
555
556 inode_lock(inode);
557
558 isize = i_size_read(inode);
559 if (offset < 0 || offset >= isize) {
560 inode_unlock(inode);
561 return -ENXIO;
562 }
563
564 blkbits = inode->i_sb->s_blocksize_bits;
565 start = offset >> blkbits;
566 last = start;
567 end = isize >> blkbits;
568 dataoff = offset;
569
570 do {
571 ret = ext4_get_next_extent(inode, last, end - last + 1, &es);
572 if (ret <= 0) {
573 /* No extent found -> no data */
574 if (ret == 0)
575 ret = -ENXIO;
576 inode_unlock(inode);
577 return ret;
578 }
579
580 last = es.es_lblk;
581 if (last != start)
582 dataoff = (loff_t)last << blkbits;
583 if (!ext4_es_is_unwritten(&es))
584 break;
585
586 /*
587 * If there is a unwritten extent at this offset,
588 * it will be as a data or a hole according to page
589 * cache that has data or not.
590 */
591 if (ext4_find_unwritten_pgoff(inode, SEEK_DATA,
592 es.es_lblk + es.es_len, &dataoff))
593 break;
594 last += es.es_len;
595 dataoff = (loff_t)last << blkbits;
596 cond_resched();
597 } while (last <= end);
598
599 inode_unlock(inode);
600
601 if (dataoff > isize)
602 return -ENXIO;
603
604 return vfs_setpos(file, dataoff, maxsize);
605}
606
607/*
608 * ext4_seek_hole() retrieves the offset for SEEK_HOLE.
609 */
610static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
611{
612 struct inode *inode = file->f_mapping->host;
613 struct extent_status es;
614 ext4_lblk_t start, last, end;
615 loff_t holeoff, isize;
616 int blkbits;
617 int ret;
618
619 inode_lock(inode);
620
621 isize = i_size_read(inode);
622 if (offset < 0 || offset >= isize) {
623 inode_unlock(inode);
624 return -ENXIO;
625 }
626
627 blkbits = inode->i_sb->s_blocksize_bits;
628 start = offset >> blkbits;
629 last = start;
630 end = isize >> blkbits;
631 holeoff = offset;
632
633 do {
634 ret = ext4_get_next_extent(inode, last, end - last + 1, &es);
635 if (ret < 0) {
636 inode_unlock(inode);
637 return ret;
638 }
639 /* Found a hole? */
640 if (ret == 0 || es.es_lblk > last) {
641 if (last != start)
642 holeoff = (loff_t)last << blkbits;
643 break;
644 }
645 /*
646 * If there is a unwritten extent at this offset,
647 * it will be as a data or a hole according to page
648 * cache that has data or not.
649 */
650 if (ext4_es_is_unwritten(&es) &&
651 ext4_find_unwritten_pgoff(inode, SEEK_HOLE,
652 last + es.es_len, &holeoff))
653 break;
654
655 last += es.es_len;
656 holeoff = (loff_t)last << blkbits;
657 cond_resched();
658 } while (last <= end);
659
660 inode_unlock(inode);
661
662 if (holeoff > isize)
663 holeoff = isize;
664
665 return vfs_setpos(file, holeoff, maxsize);
666}
667
668/*
669 * ext4_llseek() handles both block-mapped and extent-mapped maxbytes values 428 * ext4_llseek() handles both block-mapped and extent-mapped maxbytes values
670 * by calling generic_file_llseek_size() with the appropriate maxbytes 429 * by calling generic_file_llseek_size() with the appropriate maxbytes
671 * value for each. 430 * value for each.
@@ -681,18 +440,24 @@ loff_t ext4_llseek(struct file *file, loff_t offset, int whence)
681 maxbytes = inode->i_sb->s_maxbytes; 440 maxbytes = inode->i_sb->s_maxbytes;
682 441
683 switch (whence) { 442 switch (whence) {
684 case SEEK_SET: 443 default:
685 case SEEK_CUR:
686 case SEEK_END:
687 return generic_file_llseek_size(file, offset, whence, 444 return generic_file_llseek_size(file, offset, whence,
688 maxbytes, i_size_read(inode)); 445 maxbytes, i_size_read(inode));
689 case SEEK_DATA:
690 return ext4_seek_data(file, offset, maxbytes);
691 case SEEK_HOLE: 446 case SEEK_HOLE:
692 return ext4_seek_hole(file, offset, maxbytes); 447 inode_lock_shared(inode);
448 offset = iomap_seek_hole(inode, offset, &ext4_iomap_ops);
449 inode_unlock_shared(inode);
450 break;
451 case SEEK_DATA:
452 inode_lock_shared(inode);
453 offset = iomap_seek_data(inode, offset, &ext4_iomap_ops);
454 inode_unlock_shared(inode);
455 break;
693 } 456 }
694 457
695 return -EINVAL; 458 if (offset < 0)
459 return offset;
460 return vfs_setpos(file, offset, maxbytes);
696} 461}
697 462
698const struct file_operations ext4_file_operations = { 463const struct file_operations ext4_file_operations = {
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index c5f697a3fad4..b4267d72f249 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1139,9 +1139,7 @@ got:
1139 inode->i_ino); 1139 inode->i_ino);
1140 goto out; 1140 goto out;
1141 } 1141 }
1142 spin_lock(&sbi->s_next_gen_lock); 1142 inode->i_generation = prandom_u32();
1143 inode->i_generation = sbi->s_next_generation++;
1144 spin_unlock(&sbi->s_next_gen_lock);
1145 1143
1146 /* Precompute checksum seed for inode metadata */ 1144 /* Precompute checksum seed for inode metadata */
1147 if (ext4_has_metadata_csum(sb)) { 1145 if (ext4_has_metadata_csum(sb)) {
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 28c5c3abddb3..1367553c43bb 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -12,6 +12,7 @@
12 * GNU General Public License for more details. 12 * GNU General Public License for more details.
13 */ 13 */
14 14
15#include <linux/iomap.h>
15#include <linux/fiemap.h> 16#include <linux/fiemap.h>
16 17
17#include "ext4_jbd2.h" 18#include "ext4_jbd2.h"
@@ -302,11 +303,6 @@ static int ext4_create_inline_data(handle_t *handle,
302 EXT4_I(inode)->i_inline_size = len + EXT4_MIN_INLINE_DATA_SIZE; 303 EXT4_I(inode)->i_inline_size = len + EXT4_MIN_INLINE_DATA_SIZE;
303 ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS); 304 ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
304 ext4_set_inode_flag(inode, EXT4_INODE_INLINE_DATA); 305 ext4_set_inode_flag(inode, EXT4_INODE_INLINE_DATA);
305 /*
306 * Propagate changes to inode->i_flags as well - e.g. S_DAX may
307 * get cleared
308 */
309 ext4_set_inode_flags(inode);
310 get_bh(is.iloc.bh); 306 get_bh(is.iloc.bh);
311 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc); 307 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
312 308
@@ -451,11 +447,6 @@ static int ext4_destroy_inline_data_nolock(handle_t *handle,
451 } 447 }
452 } 448 }
453 ext4_clear_inode_flag(inode, EXT4_INODE_INLINE_DATA); 449 ext4_clear_inode_flag(inode, EXT4_INODE_INLINE_DATA);
454 /*
455 * Propagate changes to inode->i_flags as well - e.g. S_DAX may
456 * get set.
457 */
458 ext4_set_inode_flags(inode);
459 450
460 get_bh(is.iloc.bh); 451 get_bh(is.iloc.bh);
461 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc); 452 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
@@ -1827,6 +1818,38 @@ int ext4_destroy_inline_data(handle_t *handle, struct inode *inode)
1827 return ret; 1818 return ret;
1828} 1819}
1829 1820
1821int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap)
1822{
1823 __u64 addr;
1824 int error = -EAGAIN;
1825 struct ext4_iloc iloc;
1826
1827 down_read(&EXT4_I(inode)->xattr_sem);
1828 if (!ext4_has_inline_data(inode))
1829 goto out;
1830
1831 error = ext4_get_inode_loc(inode, &iloc);
1832 if (error)
1833 goto out;
1834
1835 addr = (__u64)iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits;
1836 addr += (char *)ext4_raw_inode(&iloc) - iloc.bh->b_data;
1837 addr += offsetof(struct ext4_inode, i_block);
1838
1839 brelse(iloc.bh);
1840
1841 iomap->addr = addr;
1842 iomap->offset = 0;
1843 iomap->length = min_t(loff_t, ext4_get_inline_size(inode),
1844 i_size_read(inode));
1845 iomap->type = 0;
1846 iomap->flags = IOMAP_F_DATA_INLINE;
1847
1848out:
1849 up_read(&EXT4_I(inode)->xattr_sem);
1850 return error;
1851}
1852
1830int ext4_inline_data_fiemap(struct inode *inode, 1853int ext4_inline_data_fiemap(struct inode *inode,
1831 struct fiemap_extent_info *fieinfo, 1854 struct fiemap_extent_info *fieinfo,
1832 int *has_inline, __u64 start, __u64 len) 1855 int *has_inline, __u64 start, __u64 len)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 168a1b499cdf..2633150e41b9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3394,7 +3394,6 @@ static int ext4_releasepage(struct page *page, gfp_t wait)
3394 return try_to_free_buffers(page); 3394 return try_to_free_buffers(page);
3395} 3395}
3396 3396
3397#ifdef CONFIG_FS_DAX
3398static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length, 3397static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
3399 unsigned flags, struct iomap *iomap) 3398 unsigned flags, struct iomap *iomap)
3400{ 3399{
@@ -3403,17 +3402,54 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
3403 unsigned long first_block = offset >> blkbits; 3402 unsigned long first_block = offset >> blkbits;
3404 unsigned long last_block = (offset + length - 1) >> blkbits; 3403 unsigned long last_block = (offset + length - 1) >> blkbits;
3405 struct ext4_map_blocks map; 3404 struct ext4_map_blocks map;
3405 bool delalloc = false;
3406 int ret; 3406 int ret;
3407 3407
3408 if (WARN_ON_ONCE(ext4_has_inline_data(inode))) 3408
3409 return -ERANGE; 3409 if (flags & IOMAP_REPORT) {
3410 if (ext4_has_inline_data(inode)) {
3411 ret = ext4_inline_data_iomap(inode, iomap);
3412 if (ret != -EAGAIN) {
3413 if (ret == 0 && offset >= iomap->length)
3414 ret = -ENOENT;
3415 return ret;
3416 }
3417 }
3418 } else {
3419 if (WARN_ON_ONCE(ext4_has_inline_data(inode)))
3420 return -ERANGE;
3421 }
3410 3422
3411 map.m_lblk = first_block; 3423 map.m_lblk = first_block;
3412 map.m_len = last_block - first_block + 1; 3424 map.m_len = last_block - first_block + 1;
3413 3425
3414 if (!(flags & IOMAP_WRITE)) { 3426 if (flags & IOMAP_REPORT) {
3415 ret = ext4_map_blocks(NULL, inode, &map, 0); 3427 ret = ext4_map_blocks(NULL, inode, &map, 0);
3416 } else { 3428 if (ret < 0)
3429 return ret;
3430
3431 if (ret == 0) {
3432 ext4_lblk_t end = map.m_lblk + map.m_len - 1;
3433 struct extent_status es;
3434
3435 ext4_es_find_delayed_extent_range(inode, map.m_lblk, end, &es);
3436
3437 if (!es.es_len || es.es_lblk > end) {
3438 /* entire range is a hole */
3439 } else if (es.es_lblk > map.m_lblk) {
3440 /* range starts with a hole */
3441 map.m_len = es.es_lblk - map.m_lblk;
3442 } else {
3443 ext4_lblk_t offs = 0;
3444
3445 if (es.es_lblk < map.m_lblk)
3446 offs = map.m_lblk - es.es_lblk;
3447 map.m_lblk = es.es_lblk + offs;
3448 map.m_len = es.es_len - offs;
3449 delalloc = true;
3450 }
3451 }
3452 } else if (flags & IOMAP_WRITE) {
3417 int dio_credits; 3453 int dio_credits;
3418 handle_t *handle; 3454 handle_t *handle;
3419 int retries = 0; 3455 int retries = 0;
@@ -3464,17 +3500,21 @@ retry:
3464 } 3500 }
3465 } 3501 }
3466 ext4_journal_stop(handle); 3502 ext4_journal_stop(handle);
3503 } else {
3504 ret = ext4_map_blocks(NULL, inode, &map, 0);
3505 if (ret < 0)
3506 return ret;
3467 } 3507 }
3468 3508
3469 iomap->flags = 0; 3509 iomap->flags = 0;
3470 iomap->bdev = inode->i_sb->s_bdev; 3510 iomap->bdev = inode->i_sb->s_bdev;
3471 iomap->dax_dev = sbi->s_daxdev; 3511 iomap->dax_dev = sbi->s_daxdev;
3472 iomap->offset = first_block << blkbits; 3512 iomap->offset = first_block << blkbits;
3513 iomap->length = (u64)map.m_len << blkbits;
3473 3514
3474 if (ret == 0) { 3515 if (ret == 0) {
3475 iomap->type = IOMAP_HOLE; 3516 iomap->type = delalloc ? IOMAP_DELALLOC : IOMAP_HOLE;
3476 iomap->blkno = IOMAP_NULL_BLOCK; 3517 iomap->addr = IOMAP_NULL_ADDR;
3477 iomap->length = (u64)map.m_len << blkbits;
3478 } else { 3518 } else {
3479 if (map.m_flags & EXT4_MAP_MAPPED) { 3519 if (map.m_flags & EXT4_MAP_MAPPED) {
3480 iomap->type = IOMAP_MAPPED; 3520 iomap->type = IOMAP_MAPPED;
@@ -3484,12 +3524,12 @@ retry:
3484 WARN_ON_ONCE(1); 3524 WARN_ON_ONCE(1);
3485 return -EIO; 3525 return -EIO;
3486 } 3526 }
3487 iomap->blkno = (sector_t)map.m_pblk << (blkbits - 9); 3527 iomap->addr = (u64)map.m_pblk << blkbits;
3488 iomap->length = (u64)map.m_len << blkbits;
3489 } 3528 }
3490 3529
3491 if (map.m_flags & EXT4_MAP_NEW) 3530 if (map.m_flags & EXT4_MAP_NEW)
3492 iomap->flags |= IOMAP_F_NEW; 3531 iomap->flags |= IOMAP_F_NEW;
3532
3493 return 0; 3533 return 0;
3494} 3534}
3495 3535
@@ -3550,8 +3590,6 @@ const struct iomap_ops ext4_iomap_ops = {
3550 .iomap_end = ext4_iomap_end, 3590 .iomap_end = ext4_iomap_end,
3551}; 3591};
3552 3592
3553#endif
3554
3555static int ext4_end_io_dio(struct kiocb *iocb, loff_t offset, 3593static int ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
3556 ssize_t size, void *private) 3594 ssize_t size, void *private)
3557{ 3595{
@@ -4573,6 +4611,21 @@ int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
4573 !ext4_test_inode_state(inode, EXT4_STATE_XATTR)); 4611 !ext4_test_inode_state(inode, EXT4_STATE_XATTR));
4574} 4612}
4575 4613
4614static bool ext4_should_use_dax(struct inode *inode)
4615{
4616 if (!test_opt(inode->i_sb, DAX))
4617 return false;
4618 if (!S_ISREG(inode->i_mode))
4619 return false;
4620 if (ext4_should_journal_data(inode))
4621 return false;
4622 if (ext4_has_inline_data(inode))
4623 return false;
4624 if (ext4_encrypted_inode(inode))
4625 return false;
4626 return true;
4627}
4628
4576void ext4_set_inode_flags(struct inode *inode) 4629void ext4_set_inode_flags(struct inode *inode)
4577{ 4630{
4578 unsigned int flags = EXT4_I(inode)->i_flags; 4631 unsigned int flags = EXT4_I(inode)->i_flags;
@@ -4588,9 +4641,7 @@ void ext4_set_inode_flags(struct inode *inode)
4588 new_fl |= S_NOATIME; 4641 new_fl |= S_NOATIME;
4589 if (flags & EXT4_DIRSYNC_FL) 4642 if (flags & EXT4_DIRSYNC_FL)
4590 new_fl |= S_DIRSYNC; 4643 new_fl |= S_DIRSYNC;
4591 if (test_opt(inode->i_sb, DAX) && S_ISREG(inode->i_mode) && 4644 if (ext4_should_use_dax(inode))
4592 !ext4_should_journal_data(inode) && !ext4_has_inline_data(inode) &&
4593 !(flags & EXT4_ENCRYPT_FL))
4594 new_fl |= S_DAX; 4645 new_fl |= S_DAX;
4595 if (flags & EXT4_ENCRYPT_FL) 4646 if (flags & EXT4_ENCRYPT_FL)
4596 new_fl |= S_ENCRYPTED; 4647 new_fl |= S_ENCRYPTED;
@@ -5966,11 +6017,6 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
5966 ext4_clear_inode_flag(inode, EXT4_INODE_JOURNAL_DATA); 6017 ext4_clear_inode_flag(inode, EXT4_INODE_JOURNAL_DATA);
5967 } 6018 }
5968 ext4_set_aops(inode); 6019 ext4_set_aops(inode);
5969 /*
5970 * Update inode->i_flags after EXT4_INODE_JOURNAL_DATA was updated.
5971 * E.g. S_DAX may get cleared / set.
5972 */
5973 ext4_set_inode_flags(inode);
5974 6020
5975 jbd2_journal_unlock_updates(journal); 6021 jbd2_journal_unlock_updates(journal);
5976 percpu_up_write(&sbi->s_journal_flag_rwsem); 6022 percpu_up_write(&sbi->s_journal_flag_rwsem);
@@ -6106,70 +6152,3 @@ int ext4_filemap_fault(struct vm_fault *vmf)
6106 6152
6107 return err; 6153 return err;
6108} 6154}
6109
6110/*
6111 * Find the first extent at or after @lblk in an inode that is not a hole.
6112 * Search for @map_len blocks at most. The extent is returned in @result.
6113 *
6114 * The function returns 1 if we found an extent. The function returns 0 in
6115 * case there is no extent at or after @lblk and in that case also sets
6116 * @result->es_len to 0. In case of error, the error code is returned.
6117 */
6118int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk,
6119 unsigned int map_len, struct extent_status *result)
6120{
6121 struct ext4_map_blocks map;
6122 struct extent_status es = {};
6123 int ret;
6124
6125 map.m_lblk = lblk;
6126 map.m_len = map_len;
6127
6128 /*
6129 * For non-extent based files this loop may iterate several times since
6130 * we do not determine full hole size.
6131 */
6132 while (map.m_len > 0) {
6133 ret = ext4_map_blocks(NULL, inode, &map, 0);
6134 if (ret < 0)
6135 return ret;
6136 /* There's extent covering m_lblk? Just return it. */
6137 if (ret > 0) {
6138 int status;
6139
6140 ext4_es_store_pblock(result, map.m_pblk);
6141 result->es_lblk = map.m_lblk;
6142 result->es_len = map.m_len;
6143 if (map.m_flags & EXT4_MAP_UNWRITTEN)
6144 status = EXTENT_STATUS_UNWRITTEN;
6145 else
6146 status = EXTENT_STATUS_WRITTEN;
6147 ext4_es_store_status(result, status);
6148 return 1;
6149 }
6150 ext4_es_find_delayed_extent_range(inode, map.m_lblk,
6151 map.m_lblk + map.m_len - 1,
6152 &es);
6153 /* Is delalloc data before next block in extent tree? */
6154 if (es.es_len && es.es_lblk < map.m_lblk + map.m_len) {
6155 ext4_lblk_t offset = 0;
6156
6157 if (es.es_lblk < lblk)
6158 offset = lblk - es.es_lblk;
6159 result->es_lblk = es.es_lblk + offset;
6160 ext4_es_store_pblock(result,
6161 ext4_es_pblock(&es) + offset);
6162 result->es_len = es.es_len - offset;
6163 ext4_es_store_status(result, ext4_es_status(&es));
6164
6165 return 1;
6166 }
6167 /* There's a hole at m_lblk, advance us after it */
6168 map.m_lblk += map.m_len;
6169 map_len -= map.m_len;
6170 map.m_len = map_len;
6171 cond_resched();
6172 }
6173 result->es_len = 0;
6174 return 0;
6175}
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 75d83471f65c..b7558f292420 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -15,6 +15,7 @@
15#include <linux/mount.h> 15#include <linux/mount.h>
16#include <linux/file.h> 16#include <linux/file.h>
17#include <linux/quotaops.h> 17#include <linux/quotaops.h>
18#include <linux/random.h>
18#include <linux/uuid.h> 19#include <linux/uuid.h>
19#include <linux/uaccess.h> 20#include <linux/uaccess.h>
20#include <linux/delay.h> 21#include <linux/delay.h>
@@ -99,7 +100,6 @@ static long swap_inode_boot_loader(struct super_block *sb,
99 int err; 100 int err;
100 struct inode *inode_bl; 101 struct inode *inode_bl;
101 struct ext4_inode_info *ei_bl; 102 struct ext4_inode_info *ei_bl;
102 struct ext4_sb_info *sbi = EXT4_SB(sb);
103 103
104 if (inode->i_nlink != 1 || !S_ISREG(inode->i_mode)) 104 if (inode->i_nlink != 1 || !S_ISREG(inode->i_mode))
105 return -EINVAL; 105 return -EINVAL;
@@ -158,10 +158,8 @@ static long swap_inode_boot_loader(struct super_block *sb,
158 158
159 inode->i_ctime = inode_bl->i_ctime = current_time(inode); 159 inode->i_ctime = inode_bl->i_ctime = current_time(inode);
160 160
161 spin_lock(&sbi->s_next_gen_lock); 161 inode->i_generation = prandom_u32();
162 inode->i_generation = sbi->s_next_generation++; 162 inode_bl->i_generation = prandom_u32();
163 inode_bl->i_generation = sbi->s_next_generation++;
164 spin_unlock(&sbi->s_next_gen_lock);
165 163
166 ext4_discard_preallocations(inode); 164 ext4_discard_preallocations(inode);
167 165
@@ -291,10 +289,20 @@ flags_err:
291 if (err) 289 if (err)
292 goto flags_out; 290 goto flags_out;
293 291
294 if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) 292 if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
293 /*
294 * Changes to the journaling mode can cause unsafe changes to
295 * S_DAX if we are using the DAX mount option.
296 */
297 if (test_opt(inode->i_sb, DAX)) {
298 err = -EBUSY;
299 goto flags_out;
300 }
301
295 err = ext4_change_inode_journal_flag(inode, jflag); 302 err = ext4_change_inode_journal_flag(inode, jflag);
296 if (err) 303 if (err)
297 goto flags_out; 304 goto flags_out;
305 }
298 if (migrate) { 306 if (migrate) {
299 if (flags & EXT4_EXTENTS_FL) 307 if (flags & EXT4_EXTENTS_FL)
300 err = ext4_ext_migrate(inode); 308 err = ext4_ext_migrate(inode);
@@ -862,12 +870,6 @@ group_add_out:
862 int err = 0, err2 = 0; 870 int err = 0, err2 = 0;
863 ext4_group_t o_group = EXT4_SB(sb)->s_groups_count; 871 ext4_group_t o_group = EXT4_SB(sb)->s_groups_count;
864 872
865 if (ext4_has_feature_bigalloc(sb)) {
866 ext4_msg(sb, KERN_ERR,
867 "Online resizing not (yet) supported with bigalloc");
868 return -EOPNOTSUPP;
869 }
870
871 if (copy_from_user(&n_blocks_count, (__u64 __user *)arg, 873 if (copy_from_user(&n_blocks_count, (__u64 __user *)arg,
872 sizeof(__u64))) { 874 sizeof(__u64))) {
873 return -EFAULT; 875 return -EFAULT;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 701085620cd8..d9f8b90a93ed 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4994,8 +4994,11 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
4994 struct ext4_group_desc *desc; 4994 struct ext4_group_desc *desc;
4995 struct ext4_sb_info *sbi = EXT4_SB(sb); 4995 struct ext4_sb_info *sbi = EXT4_SB(sb);
4996 struct ext4_buddy e4b; 4996 struct ext4_buddy e4b;
4997 int err = 0, ret, blk_free_count; 4997 int err = 0, ret, free_clusters_count;
4998 ext4_grpblk_t blocks_freed; 4998 ext4_grpblk_t clusters_freed;
4999 ext4_fsblk_t first_cluster = EXT4_B2C(sbi, block);
5000 ext4_fsblk_t last_cluster = EXT4_B2C(sbi, block + count - 1);
5001 unsigned long cluster_count = last_cluster - first_cluster + 1;
4999 5002
5000 ext4_debug("Adding block(s) %llu-%llu\n", block, block + count - 1); 5003 ext4_debug("Adding block(s) %llu-%llu\n", block, block + count - 1);
5001 5004
@@ -5007,8 +5010,8 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
5007 * Check to see if we are freeing blocks across a group 5010 * Check to see if we are freeing blocks across a group
5008 * boundary. 5011 * boundary.
5009 */ 5012 */
5010 if (bit + count > EXT4_BLOCKS_PER_GROUP(sb)) { 5013 if (bit + cluster_count > EXT4_CLUSTERS_PER_GROUP(sb)) {
5011 ext4_warning(sb, "too much blocks added to group %u", 5014 ext4_warning(sb, "too many blocks added to group %u",
5012 block_group); 5015 block_group);
5013 err = -EINVAL; 5016 err = -EINVAL;
5014 goto error_return; 5017 goto error_return;
@@ -5054,14 +5057,14 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
5054 if (err) 5057 if (err)
5055 goto error_return; 5058 goto error_return;
5056 5059
5057 for (i = 0, blocks_freed = 0; i < count; i++) { 5060 for (i = 0, clusters_freed = 0; i < cluster_count; i++) {
5058 BUFFER_TRACE(bitmap_bh, "clear bit"); 5061 BUFFER_TRACE(bitmap_bh, "clear bit");
5059 if (!mb_test_bit(bit + i, bitmap_bh->b_data)) { 5062 if (!mb_test_bit(bit + i, bitmap_bh->b_data)) {
5060 ext4_error(sb, "bit already cleared for block %llu", 5063 ext4_error(sb, "bit already cleared for block %llu",
5061 (ext4_fsblk_t)(block + i)); 5064 (ext4_fsblk_t)(block + i));
5062 BUFFER_TRACE(bitmap_bh, "bit already cleared"); 5065 BUFFER_TRACE(bitmap_bh, "bit already cleared");
5063 } else { 5066 } else {
5064 blocks_freed++; 5067 clusters_freed++;
5065 } 5068 }
5066 } 5069 }
5067 5070
@@ -5075,19 +5078,20 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
5075 * them with group lock_held 5078 * them with group lock_held
5076 */ 5079 */
5077 ext4_lock_group(sb, block_group); 5080 ext4_lock_group(sb, block_group);
5078 mb_clear_bits(bitmap_bh->b_data, bit, count); 5081 mb_clear_bits(bitmap_bh->b_data, bit, cluster_count);
5079 mb_free_blocks(NULL, &e4b, bit, count); 5082 mb_free_blocks(NULL, &e4b, bit, cluster_count);
5080 blk_free_count = blocks_freed + ext4_free_group_clusters(sb, desc); 5083 free_clusters_count = clusters_freed +
5081 ext4_free_group_clusters_set(sb, desc, blk_free_count); 5084 ext4_free_group_clusters(sb, desc);
5085 ext4_free_group_clusters_set(sb, desc, free_clusters_count);
5082 ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh); 5086 ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh);
5083 ext4_group_desc_csum_set(sb, block_group, desc); 5087 ext4_group_desc_csum_set(sb, block_group, desc);
5084 ext4_unlock_group(sb, block_group); 5088 ext4_unlock_group(sb, block_group);
5085 percpu_counter_add(&sbi->s_freeclusters_counter, 5089 percpu_counter_add(&sbi->s_freeclusters_counter,
5086 EXT4_NUM_B2C(sbi, blocks_freed)); 5090 clusters_freed);
5087 5091
5088 if (sbi->s_log_groups_per_flex) { 5092 if (sbi->s_log_groups_per_flex) {
5089 ext4_group_t flex_group = ext4_flex_group(sbi, block_group); 5093 ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
5090 atomic64_add(EXT4_NUM_B2C(sbi, blocks_freed), 5094 atomic64_add(clusters_freed,
5091 &sbi->s_flex_groups[flex_group].free_clusters); 5095 &sbi->s_flex_groups[flex_group].free_clusters);
5092 } 5096 }
5093 5097
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 1dac59c24792..50443bda8e98 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -107,7 +107,7 @@ static int verify_group_input(struct super_block *sb,
107 107
108 overhead = ext4_group_overhead_blocks(sb, group); 108 overhead = ext4_group_overhead_blocks(sb, group);
109 metaend = start + overhead; 109 metaend = start + overhead;
110 input->free_blocks_count = free_blocks_count = 110 input->free_clusters_count = free_blocks_count =
111 input->blocks_count - 2 - overhead - sbi->s_itb_per_group; 111 input->blocks_count - 2 - overhead - sbi->s_itb_per_group;
112 112
113 if (test_opt(sb, DEBUG)) 113 if (test_opt(sb, DEBUG))
@@ -258,6 +258,7 @@ static int ext4_alloc_group_tables(struct super_block *sb,
258 ext4_group_t last_group; 258 ext4_group_t last_group;
259 unsigned overhead; 259 unsigned overhead;
260 __u16 uninit_mask = (flexbg_size > 1) ? ~EXT4_BG_BLOCK_UNINIT : ~0; 260 __u16 uninit_mask = (flexbg_size > 1) ? ~EXT4_BG_BLOCK_UNINIT : ~0;
261 int i;
261 262
262 BUG_ON(flex_gd->count == 0 || group_data == NULL); 263 BUG_ON(flex_gd->count == 0 || group_data == NULL);
263 264
@@ -294,7 +295,7 @@ next_group:
294 group_data[bb_index].block_bitmap = start_blk++; 295 group_data[bb_index].block_bitmap = start_blk++;
295 group = ext4_get_group_number(sb, start_blk - 1); 296 group = ext4_get_group_number(sb, start_blk - 1);
296 group -= group_data[0].group; 297 group -= group_data[0].group;
297 group_data[group].free_blocks_count--; 298 group_data[group].mdata_blocks++;
298 flex_gd->bg_flags[group] &= uninit_mask; 299 flex_gd->bg_flags[group] &= uninit_mask;
299 } 300 }
300 301
@@ -305,7 +306,7 @@ next_group:
305 group_data[ib_index].inode_bitmap = start_blk++; 306 group_data[ib_index].inode_bitmap = start_blk++;
306 group = ext4_get_group_number(sb, start_blk - 1); 307 group = ext4_get_group_number(sb, start_blk - 1);
307 group -= group_data[0].group; 308 group -= group_data[0].group;
308 group_data[group].free_blocks_count--; 309 group_data[group].mdata_blocks++;
309 flex_gd->bg_flags[group] &= uninit_mask; 310 flex_gd->bg_flags[group] &= uninit_mask;
310 } 311 }
311 312
@@ -324,15 +325,22 @@ next_group:
324 if (start_blk + itb > next_group_start) { 325 if (start_blk + itb > next_group_start) {
325 flex_gd->bg_flags[group + 1] &= uninit_mask; 326 flex_gd->bg_flags[group + 1] &= uninit_mask;
326 overhead = start_blk + itb - next_group_start; 327 overhead = start_blk + itb - next_group_start;
327 group_data[group + 1].free_blocks_count -= overhead; 328 group_data[group + 1].mdata_blocks += overhead;
328 itb -= overhead; 329 itb -= overhead;
329 } 330 }
330 331
331 group_data[group].free_blocks_count -= itb; 332 group_data[group].mdata_blocks += itb;
332 flex_gd->bg_flags[group] &= uninit_mask; 333 flex_gd->bg_flags[group] &= uninit_mask;
333 start_blk += EXT4_SB(sb)->s_itb_per_group; 334 start_blk += EXT4_SB(sb)->s_itb_per_group;
334 } 335 }
335 336
337 /* Update free clusters count to exclude metadata blocks */
338 for (i = 0; i < flex_gd->count; i++) {
339 group_data[i].free_clusters_count -=
340 EXT4_NUM_B2C(EXT4_SB(sb),
341 group_data[i].mdata_blocks);
342 }
343
336 if (test_opt(sb, DEBUG)) { 344 if (test_opt(sb, DEBUG)) {
337 int i; 345 int i;
338 group = group_data[0].group; 346 group = group_data[0].group;
@@ -342,12 +350,13 @@ next_group:
342 flexbg_size); 350 flexbg_size);
343 351
344 for (i = 0; i < flex_gd->count; i++) { 352 for (i = 0; i < flex_gd->count; i++) {
345 printk(KERN_DEBUG "adding %s group %u: %u " 353 ext4_debug(
346 "blocks (%d free)\n", 354 "adding %s group %u: %u blocks (%d free, %d mdata blocks)\n",
347 ext4_bg_has_super(sb, group + i) ? "normal" : 355 ext4_bg_has_super(sb, group + i) ? "normal" :
348 "no-super", group + i, 356 "no-super", group + i,
349 group_data[i].blocks_count, 357 group_data[i].blocks_count,
350 group_data[i].free_blocks_count); 358 group_data[i].free_clusters_count,
359 group_data[i].mdata_blocks);
351 } 360 }
352 } 361 }
353 return 0; 362 return 0;
@@ -399,7 +408,7 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh)
399} 408}
400 409
401/* 410/*
402 * set_flexbg_block_bitmap() mark @count blocks starting from @block used. 411 * set_flexbg_block_bitmap() mark clusters [@first_cluster, @last_cluster] used.
403 * 412 *
404 * Helper function for ext4_setup_new_group_blocks() which set . 413 * Helper function for ext4_setup_new_group_blocks() which set .
405 * 414 *
@@ -409,22 +418,26 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh)
409 */ 418 */
410static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle, 419static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
411 struct ext4_new_flex_group_data *flex_gd, 420 struct ext4_new_flex_group_data *flex_gd,
412 ext4_fsblk_t block, ext4_group_t count) 421 ext4_fsblk_t first_cluster, ext4_fsblk_t last_cluster)
413{ 422{
423 struct ext4_sb_info *sbi = EXT4_SB(sb);
424 ext4_group_t count = last_cluster - first_cluster + 1;
414 ext4_group_t count2; 425 ext4_group_t count2;
415 426
416 ext4_debug("mark blocks [%llu/%u] used\n", block, count); 427 ext4_debug("mark clusters [%llu-%llu] used\n", first_cluster,
417 for (count2 = count; count > 0; count -= count2, block += count2) { 428 last_cluster);
429 for (count2 = count; count > 0;
430 count -= count2, first_cluster += count2) {
418 ext4_fsblk_t start; 431 ext4_fsblk_t start;
419 struct buffer_head *bh; 432 struct buffer_head *bh;
420 ext4_group_t group; 433 ext4_group_t group;
421 int err; 434 int err;
422 435
423 group = ext4_get_group_number(sb, block); 436 group = ext4_get_group_number(sb, EXT4_C2B(sbi, first_cluster));
424 start = ext4_group_first_block_no(sb, group); 437 start = EXT4_B2C(sbi, ext4_group_first_block_no(sb, group));
425 group -= flex_gd->groups[0].group; 438 group -= flex_gd->groups[0].group;
426 439
427 count2 = EXT4_BLOCKS_PER_GROUP(sb) - (block - start); 440 count2 = EXT4_CLUSTERS_PER_GROUP(sb) - (first_cluster - start);
428 if (count2 > count) 441 if (count2 > count)
429 count2 = count; 442 count2 = count;
430 443
@@ -445,9 +458,9 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
445 err = ext4_journal_get_write_access(handle, bh); 458 err = ext4_journal_get_write_access(handle, bh);
446 if (err) 459 if (err)
447 return err; 460 return err;
448 ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block, 461 ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n",
449 block - start, count2); 462 first_cluster, first_cluster - start, count2);
450 ext4_set_bits(bh->b_data, block - start, count2); 463 ext4_set_bits(bh->b_data, first_cluster - start, count2);
451 464
452 err = ext4_handle_dirty_metadata(handle, NULL, bh); 465 err = ext4_handle_dirty_metadata(handle, NULL, bh);
453 if (unlikely(err)) 466 if (unlikely(err))
@@ -596,9 +609,10 @@ handle_bb:
596 if (overhead != 0) { 609 if (overhead != 0) {
597 ext4_debug("mark backup superblock %#04llx (+0)\n", 610 ext4_debug("mark backup superblock %#04llx (+0)\n",
598 start); 611 start);
599 ext4_set_bits(bh->b_data, 0, overhead); 612 ext4_set_bits(bh->b_data, 0,
613 EXT4_NUM_B2C(sbi, overhead));
600 } 614 }
601 ext4_mark_bitmap_end(group_data[i].blocks_count, 615 ext4_mark_bitmap_end(EXT4_B2C(sbi, group_data[i].blocks_count),
602 sb->s_blocksize * 8, bh->b_data); 616 sb->s_blocksize * 8, bh->b_data);
603 err = ext4_handle_dirty_metadata(handle, NULL, bh); 617 err = ext4_handle_dirty_metadata(handle, NULL, bh);
604 if (err) 618 if (err)
@@ -643,7 +657,11 @@ handle_ib:
643 continue; 657 continue;
644 } 658 }
645 err = set_flexbg_block_bitmap(sb, handle, 659 err = set_flexbg_block_bitmap(sb, handle,
646 flex_gd, start, count); 660 flex_gd,
661 EXT4_B2C(sbi, start),
662 EXT4_B2C(sbi,
663 start + count
664 - 1));
647 if (err) 665 if (err)
648 goto out; 666 goto out;
649 count = group_table_count[j]; 667 count = group_table_count[j];
@@ -653,7 +671,11 @@ handle_ib:
653 671
654 if (count) { 672 if (count) {
655 err = set_flexbg_block_bitmap(sb, handle, 673 err = set_flexbg_block_bitmap(sb, handle,
656 flex_gd, start, count); 674 flex_gd,
675 EXT4_B2C(sbi, start),
676 EXT4_B2C(sbi,
677 start + count
678 - 1));
657 if (err) 679 if (err)
658 goto out; 680 goto out;
659 } 681 }
@@ -841,7 +863,8 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
841 ext4_std_error(sb, err); 863 ext4_std_error(sb, err);
842 goto exit_inode; 864 goto exit_inode;
843 } 865 }
844 inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >> 9; 866 inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >>
867 (9 - EXT4_SB(sb)->s_cluster_bits);
845 ext4_mark_iloc_dirty(handle, inode, &iloc); 868 ext4_mark_iloc_dirty(handle, inode, &iloc);
846 memset(gdb_bh->b_data, 0, sb->s_blocksize); 869 memset(gdb_bh->b_data, 0, sb->s_blocksize);
847 err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh); 870 err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
@@ -936,6 +959,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
936{ 959{
937 struct super_block *sb = inode->i_sb; 960 struct super_block *sb = inode->i_sb;
938 int reserved_gdb =le16_to_cpu(EXT4_SB(sb)->s_es->s_reserved_gdt_blocks); 961 int reserved_gdb =le16_to_cpu(EXT4_SB(sb)->s_es->s_reserved_gdt_blocks);
962 int cluster_bits = EXT4_SB(sb)->s_cluster_bits;
939 struct buffer_head **primary; 963 struct buffer_head **primary;
940 struct buffer_head *dind; 964 struct buffer_head *dind;
941 struct ext4_iloc iloc; 965 struct ext4_iloc iloc;
@@ -1011,7 +1035,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
1011 if (!err) 1035 if (!err)
1012 err = err2; 1036 err = err2;
1013 } 1037 }
1014 inode->i_blocks += reserved_gdb * sb->s_blocksize >> 9; 1038
1039 inode->i_blocks += reserved_gdb * sb->s_blocksize >> (9 - cluster_bits);
1015 ext4_mark_iloc_dirty(handle, inode, &iloc); 1040 ext4_mark_iloc_dirty(handle, inode, &iloc);
1016 1041
1017exit_bh: 1042exit_bh:
@@ -1245,7 +1270,7 @@ static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
1245 ext4_group_t group; 1270 ext4_group_t group;
1246 __u16 *bg_flags = flex_gd->bg_flags; 1271 __u16 *bg_flags = flex_gd->bg_flags;
1247 int i, gdb_off, gdb_num, err = 0; 1272 int i, gdb_off, gdb_num, err = 0;
1248 1273
1249 1274
1250 for (i = 0; i < flex_gd->count; i++, group_data++, bg_flags++) { 1275 for (i = 0; i < flex_gd->count; i++, group_data++, bg_flags++) {
1251 group = group_data->group; 1276 group = group_data->group;
@@ -1272,7 +1297,7 @@ static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
1272 1297
1273 ext4_inode_table_set(sb, gdp, group_data->inode_table); 1298 ext4_inode_table_set(sb, gdp, group_data->inode_table);
1274 ext4_free_group_clusters_set(sb, gdp, 1299 ext4_free_group_clusters_set(sb, gdp,
1275 EXT4_NUM_B2C(sbi, group_data->free_blocks_count)); 1300 group_data->free_clusters_count);
1276 ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb)); 1301 ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
1277 if (ext4_has_group_desc_csum(sb)) 1302 if (ext4_has_group_desc_csum(sb))
1278 ext4_itable_unused_set(sb, gdp, 1303 ext4_itable_unused_set(sb, gdp,
@@ -1328,7 +1353,7 @@ static void ext4_update_super(struct super_block *sb,
1328 */ 1353 */
1329 for (i = 0; i < flex_gd->count; i++) { 1354 for (i = 0; i < flex_gd->count; i++) {
1330 blocks_count += group_data[i].blocks_count; 1355 blocks_count += group_data[i].blocks_count;
1331 free_blocks += group_data[i].free_blocks_count; 1356 free_blocks += EXT4_C2B(sbi, group_data[i].free_clusters_count);
1332 } 1357 }
1333 1358
1334 reserved_blocks = ext4_r_blocks_count(es) * 100; 1359 reserved_blocks = ext4_r_blocks_count(es) * 100;
@@ -1500,17 +1525,18 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
1500 ext4_fsblk_t n_blocks_count, 1525 ext4_fsblk_t n_blocks_count,
1501 unsigned long flexbg_size) 1526 unsigned long flexbg_size)
1502{ 1527{
1503 struct ext4_super_block *es = EXT4_SB(sb)->s_es; 1528 struct ext4_sb_info *sbi = EXT4_SB(sb);
1529 struct ext4_super_block *es = sbi->s_es;
1504 struct ext4_new_group_data *group_data = flex_gd->groups; 1530 struct ext4_new_group_data *group_data = flex_gd->groups;
1505 ext4_fsblk_t o_blocks_count; 1531 ext4_fsblk_t o_blocks_count;
1506 ext4_group_t n_group; 1532 ext4_group_t n_group;
1507 ext4_group_t group; 1533 ext4_group_t group;
1508 ext4_group_t last_group; 1534 ext4_group_t last_group;
1509 ext4_grpblk_t last; 1535 ext4_grpblk_t last;
1510 ext4_grpblk_t blocks_per_group; 1536 ext4_grpblk_t clusters_per_group;
1511 unsigned long i; 1537 unsigned long i;
1512 1538
1513 blocks_per_group = EXT4_BLOCKS_PER_GROUP(sb); 1539 clusters_per_group = EXT4_CLUSTERS_PER_GROUP(sb);
1514 1540
1515 o_blocks_count = ext4_blocks_count(es); 1541 o_blocks_count = ext4_blocks_count(es);
1516 1542
@@ -1531,9 +1557,10 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
1531 int overhead; 1557 int overhead;
1532 1558
1533 group_data[i].group = group + i; 1559 group_data[i].group = group + i;
1534 group_data[i].blocks_count = blocks_per_group; 1560 group_data[i].blocks_count = EXT4_BLOCKS_PER_GROUP(sb);
1535 overhead = ext4_group_overhead_blocks(sb, group + i); 1561 overhead = ext4_group_overhead_blocks(sb, group + i);
1536 group_data[i].free_blocks_count = blocks_per_group - overhead; 1562 group_data[i].mdata_blocks = overhead;
1563 group_data[i].free_clusters_count = EXT4_CLUSTERS_PER_GROUP(sb);
1537 if (ext4_has_group_desc_csum(sb)) { 1564 if (ext4_has_group_desc_csum(sb)) {
1538 flex_gd->bg_flags[i] = EXT4_BG_BLOCK_UNINIT | 1565 flex_gd->bg_flags[i] = EXT4_BG_BLOCK_UNINIT |
1539 EXT4_BG_INODE_UNINIT; 1566 EXT4_BG_INODE_UNINIT;
@@ -1547,10 +1574,10 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
1547 /* We need to initialize block bitmap of last group. */ 1574 /* We need to initialize block bitmap of last group. */
1548 flex_gd->bg_flags[i - 1] &= ~EXT4_BG_BLOCK_UNINIT; 1575 flex_gd->bg_flags[i - 1] &= ~EXT4_BG_BLOCK_UNINIT;
1549 1576
1550 if ((last_group == n_group) && (last != blocks_per_group - 1)) { 1577 if ((last_group == n_group) && (last != clusters_per_group - 1)) {
1551 group_data[i - 1].blocks_count = last + 1; 1578 group_data[i - 1].blocks_count = EXT4_C2B(sbi, last + 1);
1552 group_data[i - 1].free_blocks_count -= blocks_per_group- 1579 group_data[i - 1].free_clusters_count -= clusters_per_group -
1553 last - 1; 1580 last - 1;
1554 } 1581 }
1555 1582
1556 return 1; 1583 return 1;
@@ -1797,7 +1824,8 @@ static int ext4_convert_meta_bg(struct super_block *sb, struct inode *inode)
1797 } 1824 }
1798 1825
1799 /* Do a quick sanity check of the resize inode */ 1826 /* Do a quick sanity check of the resize inode */
1800 if (inode->i_blocks != 1 << (inode->i_blkbits - 9)) 1827 if (inode->i_blocks != 1 << (inode->i_blkbits -
1828 (9 - sbi->s_cluster_bits)))
1801 goto invalid_resize_inode; 1829 goto invalid_resize_inode;
1802 for (i = 0; i < EXT4_N_BLOCKS; i++) { 1830 for (i = 0; i < EXT4_N_BLOCKS; i++) {
1803 if (i == EXT4_DIND_BLOCK) { 1831 if (i == EXT4_DIND_BLOCK) {
@@ -1960,7 +1988,7 @@ retry:
1960 if (n_group == o_group) 1988 if (n_group == o_group)
1961 add = n_blocks_count - o_blocks_count; 1989 add = n_blocks_count - o_blocks_count;
1962 else 1990 else
1963 add = EXT4_BLOCKS_PER_GROUP(sb) - (offset + 1); 1991 add = EXT4_C2B(sbi, EXT4_CLUSTERS_PER_GROUP(sb) - (offset + 1));
1964 if (add > 0) { 1992 if (add > 0) {
1965 err = ext4_group_extend_no_check(sb, o_blocks_count, add); 1993 err = ext4_group_extend_no_check(sb, o_blocks_count, add);
1966 if (err) 1994 if (err)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e2557711a11c..0556cd036b69 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1159,6 +1159,9 @@ static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
1159 if (inode->i_ino == EXT4_ROOT_INO) 1159 if (inode->i_ino == EXT4_ROOT_INO)
1160 return -EPERM; 1160 return -EPERM;
1161 1161
1162 if (WARN_ON_ONCE(IS_DAX(inode) && i_size_read(inode)))
1163 return -EINVAL;
1164
1162 res = ext4_convert_inline_data(inode); 1165 res = ext4_convert_inline_data(inode);
1163 if (res) 1166 if (res)
1164 return res; 1167 return res;
@@ -2790,14 +2793,11 @@ static int ext4_feature_set_ok(struct super_block *sb, int readonly)
2790 * This function is called once a day if we have errors logged 2793 * This function is called once a day if we have errors logged
2791 * on the file system 2794 * on the file system
2792 */ 2795 */
2793static void print_daily_error_info(unsigned long arg) 2796static void print_daily_error_info(struct timer_list *t)
2794{ 2797{
2795 struct super_block *sb = (struct super_block *) arg; 2798 struct ext4_sb_info *sbi = from_timer(sbi, t, s_err_report);
2796 struct ext4_sb_info *sbi; 2799 struct super_block *sb = sbi->s_sb;
2797 struct ext4_super_block *es; 2800 struct ext4_super_block *es = sbi->s_es;
2798
2799 sbi = EXT4_SB(sb);
2800 es = sbi->s_es;
2801 2801
2802 if (es->s_error_count) 2802 if (es->s_error_count)
2803 /* fsck newer than v1.41.13 is needed to clean this condition. */ 2803 /* fsck newer than v1.41.13 is needed to clean this condition. */
@@ -3707,6 +3707,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
3707 } 3707 }
3708 3708
3709 if (sbi->s_mount_opt & EXT4_MOUNT_DAX) { 3709 if (sbi->s_mount_opt & EXT4_MOUNT_DAX) {
3710 if (ext4_has_feature_inline_data(sb)) {
3711 ext4_msg(sb, KERN_ERR, "Cannot use DAX on a filesystem"
3712 " that may contain inline data");
3713 goto failed_mount;
3714 }
3710 err = bdev_dax_supported(sb, blocksize); 3715 err = bdev_dax_supported(sb, blocksize);
3711 if (err) 3716 if (err)
3712 goto failed_mount; 3717 goto failed_mount;
@@ -3976,11 +3981,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
3976 } 3981 }
3977 3982
3978 sbi->s_gdb_count = db_count; 3983 sbi->s_gdb_count = db_count;
3979 get_random_bytes(&sbi->s_next_generation, sizeof(u32));
3980 spin_lock_init(&sbi->s_next_gen_lock);
3981 3984
3982 setup_timer(&sbi->s_err_report, print_daily_error_info, 3985 timer_setup(&sbi->s_err_report, print_daily_error_info, 0);
3983 (unsigned long) sb);
3984 3986
3985 /* Register extent status tree shrinker */ 3987 /* Register extent status tree shrinker */
3986 if (ext4_es_register_shrinker(sbi)) 3988 if (ext4_es_register_shrinker(sbi))
@@ -4613,7 +4615,8 @@ static int ext4_load_journal(struct super_block *sb,
4613 "required on readonly filesystem"); 4615 "required on readonly filesystem");
4614 if (really_read_only) { 4616 if (really_read_only) {
4615 ext4_msg(sb, KERN_ERR, "write access " 4617 ext4_msg(sb, KERN_ERR, "write access "
4616 "unavailable, cannot proceed"); 4618 "unavailable, cannot proceed "
4619 "(try mounting with noload)");
4617 return -EROFS; 4620 return -EROFS;
4618 } 4621 }
4619 ext4_msg(sb, KERN_INFO, "write access will " 4622 ext4_msg(sb, KERN_INFO, "write access will "
diff --git a/fs/iomap.c b/fs/iomap.c
index d4801f8dd4fd..5011a964a550 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -350,8 +350,8 @@ static int iomap_zero(struct inode *inode, loff_t pos, unsigned offset,
350static int iomap_dax_zero(loff_t pos, unsigned offset, unsigned bytes, 350static int iomap_dax_zero(loff_t pos, unsigned offset, unsigned bytes,
351 struct iomap *iomap) 351 struct iomap *iomap)
352{ 352{
353 sector_t sector = iomap->blkno + 353 sector_t sector = (iomap->addr +
354 (((pos & ~(PAGE_SIZE - 1)) - iomap->offset) >> 9); 354 (pos & PAGE_MASK) - iomap->offset) >> 9;
355 355
356 return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, sector, 356 return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, sector,
357 offset, bytes); 357 offset, bytes);
@@ -510,11 +510,12 @@ static int iomap_to_fiemap(struct fiemap_extent_info *fi,
510 flags |= FIEMAP_EXTENT_MERGED; 510 flags |= FIEMAP_EXTENT_MERGED;
511 if (iomap->flags & IOMAP_F_SHARED) 511 if (iomap->flags & IOMAP_F_SHARED)
512 flags |= FIEMAP_EXTENT_SHARED; 512 flags |= FIEMAP_EXTENT_SHARED;
513 if (iomap->flags & IOMAP_F_DATA_INLINE)
514 flags |= FIEMAP_EXTENT_DATA_INLINE;
513 515
514 return fiemap_fill_next_extent(fi, iomap->offset, 516 return fiemap_fill_next_extent(fi, iomap->offset,
515 iomap->blkno != IOMAP_NULL_BLOCK ? iomap->blkno << 9: 0, 517 iomap->addr != IOMAP_NULL_ADDR ? iomap->addr : 0,
516 iomap->length, flags); 518 iomap->length, flags);
517
518} 519}
519 520
520static loff_t 521static loff_t
@@ -830,7 +831,7 @@ iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos,
830 bio = bio_alloc(GFP_KERNEL, 1); 831 bio = bio_alloc(GFP_KERNEL, 1);
831 bio_set_dev(bio, iomap->bdev); 832 bio_set_dev(bio, iomap->bdev);
832 bio->bi_iter.bi_sector = 833 bio->bi_iter.bi_sector =
833 iomap->blkno + ((pos - iomap->offset) >> 9); 834 (iomap->addr + pos - iomap->offset) >> 9;
834 bio->bi_private = dio; 835 bio->bi_private = dio;
835 bio->bi_end_io = iomap_dio_bio_end_io; 836 bio->bi_end_io = iomap_dio_bio_end_io;
836 837
@@ -909,7 +910,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length,
909 bio = bio_alloc(GFP_KERNEL, nr_pages); 910 bio = bio_alloc(GFP_KERNEL, nr_pages);
910 bio_set_dev(bio, iomap->bdev); 911 bio_set_dev(bio, iomap->bdev);
911 bio->bi_iter.bi_sector = 912 bio->bi_iter.bi_sector =
912 iomap->blkno + ((pos - iomap->offset) >> 9); 913 (iomap->addr + pos - iomap->offset) >> 9;
913 bio->bi_write_hint = dio->iocb->ki_hint; 914 bio->bi_write_hint = dio->iocb->ki_hint;
914 bio->bi_private = dio; 915 bio->bi_private = dio;
915 bio->bi_end_io = iomap_dio_bio_end_io; 916 bio->bi_end_io = iomap_dio_bio_end_io;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 7d5ef3bf3f3e..d2a85c9720e9 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -165,11 +165,11 @@ static void jbd2_superblock_csum_set(journal_t *j, journal_superblock_t *sb)
165 * Helper function used to manage commit timeouts 165 * Helper function used to manage commit timeouts
166 */ 166 */
167 167
168static void commit_timeout(unsigned long __data) 168static void commit_timeout(struct timer_list *t)
169{ 169{
170 struct task_struct * p = (struct task_struct *) __data; 170 journal_t *journal = from_timer(journal, t, j_commit_timer);
171 171
172 wake_up_process(p); 172 wake_up_process(journal->j_task);
173} 173}
174 174
175/* 175/*
@@ -197,8 +197,7 @@ static int kjournald2(void *arg)
197 * Set up an interval timer which can be used to trigger a commit wakeup 197 * Set up an interval timer which can be used to trigger a commit wakeup
198 * after the commit interval expires 198 * after the commit interval expires
199 */ 199 */
200 setup_timer(&journal->j_commit_timer, commit_timeout, 200 timer_setup(&journal->j_commit_timer, commit_timeout, 0);
201 (unsigned long)current);
202 201
203 set_freezable(); 202 set_freezable();
204 203
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index 3f880ae0966b..70b8bf781fce 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -66,7 +66,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
66 bex->es = PNFS_BLOCK_READ_DATA; 66 bex->es = PNFS_BLOCK_READ_DATA;
67 else 67 else
68 bex->es = PNFS_BLOCK_READWRITE_DATA; 68 bex->es = PNFS_BLOCK_READWRITE_DATA;
69 bex->soff = (iomap.blkno << 9); 69 bex->soff = iomap.addr;
70 break; 70 break;
71 case IOMAP_UNWRITTEN: 71 case IOMAP_UNWRITTEN:
72 if (seg->iomode & IOMODE_RW) { 72 if (seg->iomode & IOMODE_RW) {
@@ -79,7 +79,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
79 } 79 }
80 80
81 bex->es = PNFS_BLOCK_INVALID_DATA; 81 bex->es = PNFS_BLOCK_INVALID_DATA;
82 bex->soff = (iomap.blkno << 9); 82 bex->soff = iomap.addr;
83 break; 83 break;
84 } 84 }
85 /*FALLTHRU*/ 85 /*FALLTHRU*/
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index f179bdf1644d..9744b4819e0d 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -54,13 +54,13 @@ xfs_bmbt_to_iomap(
54 struct xfs_mount *mp = ip->i_mount; 54 struct xfs_mount *mp = ip->i_mount;
55 55
56 if (imap->br_startblock == HOLESTARTBLOCK) { 56 if (imap->br_startblock == HOLESTARTBLOCK) {
57 iomap->blkno = IOMAP_NULL_BLOCK; 57 iomap->addr = IOMAP_NULL_ADDR;
58 iomap->type = IOMAP_HOLE; 58 iomap->type = IOMAP_HOLE;
59 } else if (imap->br_startblock == DELAYSTARTBLOCK) { 59 } else if (imap->br_startblock == DELAYSTARTBLOCK) {
60 iomap->blkno = IOMAP_NULL_BLOCK; 60 iomap->addr = IOMAP_NULL_ADDR;
61 iomap->type = IOMAP_DELALLOC; 61 iomap->type = IOMAP_DELALLOC;
62 } else { 62 } else {
63 iomap->blkno = xfs_fsb_to_db(ip, imap->br_startblock); 63 iomap->addr = BBTOB(xfs_fsb_to_db(ip, imap->br_startblock));
64 if (imap->br_state == XFS_EXT_UNWRITTEN) 64 if (imap->br_state == XFS_EXT_UNWRITTEN)
65 iomap->type = IOMAP_UNWRITTEN; 65 iomap->type = IOMAP_UNWRITTEN;
66 else 66 else
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 8a7c6d26b147..76ce247d3d4b 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -16,8 +16,8 @@ struct vm_fault;
16 */ 16 */
17#define IOMAP_HOLE 0x01 /* no blocks allocated, need allocation */ 17#define IOMAP_HOLE 0x01 /* no blocks allocated, need allocation */
18#define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */ 18#define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */
19#define IOMAP_MAPPED 0x03 /* blocks allocated @blkno */ 19#define IOMAP_MAPPED 0x03 /* blocks allocated at @addr */
20#define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ 20#define IOMAP_UNWRITTEN 0x04 /* blocks allocated at @addr in unwritten state */
21 21
22/* 22/*
23 * Flags for all iomap mappings: 23 * Flags for all iomap mappings:
@@ -27,16 +27,17 @@ struct vm_fault;
27/* 27/*
28 * Flags that only need to be reported for IOMAP_REPORT requests: 28 * Flags that only need to be reported for IOMAP_REPORT requests:
29 */ 29 */
30#define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */ 30#define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */
31#define IOMAP_F_SHARED 0x20 /* block shared with another file */ 31#define IOMAP_F_SHARED 0x20 /* block shared with another file */
32#define IOMAP_F_DATA_INLINE 0x40 /* data inline in the inode */
32 33
33/* 34/*
34 * Magic value for blkno: 35 * Magic value for addr:
35 */ 36 */
36#define IOMAP_NULL_BLOCK -1LL /* blkno is not valid */ 37#define IOMAP_NULL_ADDR -1ULL /* addr is not valid */
37 38
38struct iomap { 39struct iomap {
39 sector_t blkno; /* 1st sector of mapping, 512b units */ 40 u64 addr; /* disk offset of mapping, bytes */
40 loff_t offset; /* file offset of mapping, bytes */ 41 loff_t offset; /* file offset of mapping, bytes */
41 u64 length; /* length of mapping, bytes */ 42 u64 length; /* length of mapping, bytes */
42 u16 type; /* type of mapping */ 43 u16 type; /* type of mapping */
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-29 02:06:30 -0400