btrfs: update comment for btrfs_set_inode_full_sync() about locking

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Nowadays we have a lock used to synchronize mmap writes with reflink and
fsync operations (struct btrfs_inode::i_mmap_lock), so update the comment
for btrfs_set_inode_full_sync() to mention that it can also be called
while holding that mmap lock. Besides being a valid alternative to the
inode's VFS lock, we already have the extent map shrinker using that mmap
lock instead.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Filipe Manana 2024-04-09 16:41:05 +01:00 • committed by David Sterba

parent 956a17d9d0

commit 65bb9fb00b

1 changed files with 5 additions and 3 deletions

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fs/btrfs/btrfs_inode.h

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