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| author | Naohiro Aota <naohiro.aota@wdc.com> | 2021-08-09 03:29:18 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-08-23 14:19:11 +0300 |
| commit | 63fb5879db7ca94fefac12cf7a5a051cee889c12 (patch) | |
| tree | aa81a2bfa80b33af75952f2583f91cb18a673bc3 /fs/btrfs | |
| parent | 0ae79c6fe70d5c5c645733b7ed39d5e6021d8c9a (diff) | |
| download | linux-63fb5879db7ca94fefac12cf7a5a051cee889c12.tar.xz | |
btrfs: zoned: add asserts on splitting extent_map
We call split_zoned_em() on an extent_map on submitting a bio for it. Thus,
we can assume the extent_map is PINNED, not LOGGING, and in the modified
list. Add ASSERT()s to ensure the extent_maps after the split also has the
proper flags set and are in the modified list.
Suggested-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/inode.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index d8a1e58b4bc8..09bd7c11c99b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2303,7 +2303,6 @@ static int split_zoned_em(struct btrfs_inode *inode, u64 start, u64 len, struct extent_map *split_mid = NULL; struct extent_map *split_post = NULL; int ret = 0; - int modified; unsigned long flags; /* Sanity check */ @@ -2333,11 +2332,12 @@ static int split_zoned_em(struct btrfs_inode *inode, u64 start, u64 len, ASSERT(em->len == len); ASSERT(!test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)); ASSERT(em->block_start < EXTENT_MAP_LAST_BYTE); + ASSERT(test_bit(EXTENT_FLAG_PINNED, &em->flags)); + ASSERT(!test_bit(EXTENT_FLAG_LOGGING, &em->flags)); + ASSERT(!list_empty(&em->list)); flags = em->flags; clear_bit(EXTENT_FLAG_PINNED, &em->flags); - clear_bit(EXTENT_FLAG_LOGGING, &flags); - modified = !list_empty(&em->list); /* First, replace the em with a new extent_map starting from * em->start */ split_pre->start = em->start; @@ -2351,7 +2351,7 @@ static int split_zoned_em(struct btrfs_inode *inode, u64 start, u64 len, split_pre->compress_type = em->compress_type; split_pre->generation = em->generation; - replace_extent_mapping(em_tree, em, split_pre, modified); + replace_extent_mapping(em_tree, em, split_pre, 1); /* * Now we only have an extent_map at: @@ -2371,7 +2371,7 @@ static int split_zoned_em(struct btrfs_inode *inode, u64 start, u64 len, split_mid->flags = flags; split_mid->compress_type = em->compress_type; split_mid->generation = em->generation; - add_extent_mapping(em_tree, split_mid, modified); + add_extent_mapping(em_tree, split_mid, 1); } if (post) { @@ -2385,7 +2385,7 @@ static int split_zoned_em(struct btrfs_inode *inode, u64 start, u64 len, split_post->flags = flags; split_post->compress_type = em->compress_type; split_post->generation = em->generation; - add_extent_mapping(em_tree, split_post, modified); + add_extent_mapping(em_tree, split_post, 1); } /* Once for us */ |