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-rw-r--r--fs/btrfs/disk-io.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 212806d59012..abc929a47d4b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4187,8 +4187,7 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
{
- struct btrfs_fs_info *fs_info;
- struct btrfs_root *root;
+ struct btrfs_fs_info *fs_info = buf->fs_info;
u64 transid = btrfs_header_generation(buf);
int was_dirty;
@@ -4201,8 +4200,6 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
if (unlikely(test_bit(EXTENT_BUFFER_UNMAPPED, &buf->bflags)))
return;
#endif
- root = BTRFS_I(buf->pages[0]->mapping->host)->root;
- fs_info = root->fs_info;
btrfs_assert_tree_locked(buf);
if (transid != fs_info->generation)
WARN(1, KERN_CRIT "btrfs transid mismatch buffer %llu, found %llu running %llu\n",