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Subject[PATCH 4.16 059/110] btrfs: Split btrfs_del_delalloc_inode into 2 functions
Date
4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nikolay Borisov <nborisov@suse.com>

commit 2b8773313494ede83a26fb372466e634564002ed upstream.

This is in preparation of fixing delalloc inodes leakage on transaction
abort. Also export the new function.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/btrfs/ctree.h | 2 ++
fs/btrfs/inode.c | 13 ++++++++++---
2 files changed, 12 insertions(+), 3 deletions(-)

--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3153,6 +3153,8 @@ noinline int can_nocow_extent(struct ino
u64 *orig_start, u64 *orig_block_len,
u64 *ram_bytes);

+void __btrfs_del_delalloc_inode(struct btrfs_root *root,
+ struct btrfs_inode *inode);
struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry);
int btrfs_set_inode_index(struct btrfs_inode *dir, u64 *index);
int btrfs_unlink_inode(struct btrfs_trans_handle *trans,
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1762,12 +1762,12 @@ static void btrfs_add_delalloc_inodes(st
spin_unlock(&root->delalloc_lock);
}

-static void btrfs_del_delalloc_inode(struct btrfs_root *root,
- struct btrfs_inode *inode)
+
+void __btrfs_del_delalloc_inode(struct btrfs_root *root,
+ struct btrfs_inode *inode)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);

- spin_lock(&root->delalloc_lock);
if (!list_empty(&inode->delalloc_inodes)) {
list_del_init(&inode->delalloc_inodes);
clear_bit(BTRFS_INODE_IN_DELALLOC_LIST,
@@ -1780,6 +1780,13 @@ static void btrfs_del_delalloc_inode(str
spin_unlock(&fs_info->delalloc_root_lock);
}
}
+}
+
+static void btrfs_del_delalloc_inode(struct btrfs_root *root,
+ struct btrfs_inode *inode)
+{
+ spin_lock(&root->delalloc_lock);
+ __btrfs_del_delalloc_inode(root, inode);
spin_unlock(&root->delalloc_lock);
}


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