diff options
| -rw-r--r-- | fs/btrfs/inode.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 99816d5d605b..9f3ed58f7fde 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1736,15 +1736,6 @@ static noinline int run_delalloc_cow(struct btrfs_inode *inode, return 1; } -static noinline int csum_exist_in_range(struct btrfs_fs_info *fs_info, - u64 bytenr, u64 num_bytes, bool nowait) -{ - struct btrfs_root *csum_root = btrfs_csum_root(fs_info, bytenr); - - return btrfs_lookup_csums_list(csum_root, bytenr, bytenr + num_bytes - 1, - NULL, nowait); -} - static int fallback_to_cow(struct btrfs_inode *inode, struct page *locked_page, const u64 start, const u64 end) { @@ -1859,6 +1850,7 @@ static int can_nocow_file_extent(struct btrfs_path *path, struct extent_buffer *leaf = path->nodes[0]; struct btrfs_root *root = inode->root; struct btrfs_file_extent_item *fi; + struct btrfs_root *csum_root; u64 extent_end; u8 extent_type; int can_nocow = 0; @@ -1919,7 +1911,7 @@ static int can_nocow_file_extent(struct btrfs_path *path, if (args->free_path) { /* * We don't need the path anymore, plus through the - * csum_exist_in_range() call below we will end up allocating + * btrfs_lookup_csums_list() call below we will end up allocating * another path. So free the path to avoid unnecessary extra * memory usage. */ @@ -1940,8 +1932,11 @@ static int can_nocow_file_extent(struct btrfs_path *path, * Force COW if csums exist in the range. This ensures that csums for a * given extent are either valid or do not exist. */ - ret = csum_exist_in_range(root->fs_info, args->disk_bytenr, args->num_bytes, - nowait); + + csum_root = btrfs_csum_root(root->fs_info, args->disk_bytenr); + ret = btrfs_lookup_csums_list(csum_root, args->disk_bytenr, + args->disk_bytenr + args->num_bytes - 1, + NULL, nowait); WARN_ON_ONCE(ret > 0 && is_freespace_inode); if (ret != 0) goto out; |