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btrfs: reserve correct number of items for unlink and rmdir 

__btrfs_unlink_inode() calls btrfs_update_inode() on the parent
directory in order to update its size and sequence number. Make sure we
account for it.

Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Omar Sandoval 2022-03-09 17:31:31 -08:00 committed by David Sterba
parent 42226c9897
commit bca4ad7c0b
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/inode.c
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@ -4199,8 +4199,9 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir)
* 1 for the dir index
* 1 for the inode ref
* 1 for the inode
* 1 for the parent inode
*/
return btrfs_start_transaction_fallback_global_rsv(root, 5);
return btrfs_start_transaction_fallback_global_rsv(root, 6);
}
static int btrfs_unlink(struct inode *dir, struct dentry *dentry)