The root is only used to get fs_info out of it, but the same can be
retrieved from the inode that's in async_cow.
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
---
fs/btrfs/inode.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 564ec00c765b..36b323b27dbf 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -358,7 +358,6 @@ struct async_extent {
struct async_cow {
struct inode *inode;
- struct btrfs_root *root;
struct page *locked_page;
u64 start;
u64 end;
@@ -1144,13 +1143,11 @@ static noinline void async_cow_submit(struct btrfs_work *work)
{
struct btrfs_fs_info *fs_info;
struct async_cow *async_cow;
- struct btrfs_root *root;
unsigned long nr_pages;
async_cow = container_of(work, struct async_cow, work);
- root = async_cow->root;
- fs_info = root->fs_info;
+ fs_info = BTRFS_I(async_cow->inode)->root->fs_info;
nr_pages = (async_cow->end - async_cow->start + PAGE_SIZE) >>
PAGE_SHIFT;
@@ -1179,7 +1176,6 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct async_cow *async_cow;
- struct btrfs_root *root = BTRFS_I(inode)->root;
unsigned long nr_pages;
u64 cur_end;
@@ -1189,7 +1185,6 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
async_cow = kmalloc(sizeof(*async_cow), GFP_NOFS);
BUG_ON(!async_cow); /* -ENOMEM */
async_cow->inode = igrab(inode);
- async_cow->root = root;
async_cow->locked_page = locked_page;
async_cow->start = start;
async_cow->write_flags = write_flags;
--
2.18.0
--
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