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btrfs: add lockdep assertion to remaining delalloc callbacks

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The merge and split callbacks for an inode's io tree are supposed to be
called while the io tree's spinlock is being held, so that the given
extent_state records are stable, not modified or freed while the callbacks
are using them. So add lockdep assertions in the callbacks.

Reviewed-by: Boris Burkov <boris@bur.io>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2024-02-09 12:19:55 +00:00 committed by David Sterba
parent bdc0f89e06
commit b5d5639259
1 changed files with 4 additions and 0 deletions
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4
fs/btrfs/inode.c
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@ -2300,6 +2300,8 @@ void btrfs_split_delalloc_extent(struct btrfs_inode *inode,
struct btrfs_fs_info *fs_info = inode->root->fs_info;
u64 size;
lockdep_assert_held(&inode->io_tree.lock);
/* not delalloc, ignore it */
if (!(orig->state & EXTENT_DELALLOC))
return;
@ -2338,6 +2340,8 @@ void btrfs_merge_delalloc_extent(struct btrfs_inode *inode, struct extent_state
u64 new_size, old_size;
u32 num_extents;
lockdep_assert_held(&inode->io_tree.lock);
/* not delalloc, ignore it */
if (!(other->state & EXTENT_DELALLOC))
return;