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btrfs: remove no longer used counter when reading data page

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commit ad3fc7946b1829213bbdbb2b9ad0d124b31ae4a7 upstream.

After commit 92082d40976ed0 ("btrfs: integrate page status update for
data read path into begin/end_page_read"), the 'nr' counter at
btrfs_do_readpage() is no longer used, we increment it but we never
read from it. So just remove it.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Filipe Manana 2022-02-03 15:36:44 +00:00 committed by Greg Kroah-Hartman
parent 6308ab54c8
commit ed0e951463
1 changed files with 1 additions and 4 deletions

5
fs/btrfs/extent_io.c

@ -3561,7 +3561,6 @@ int btrfs_do_readpage(struct page *page, struct extent_map **em_cached,
u64 cur_end;
struct extent_map *em;
int ret = 0;
int nr = 0;
size_t pg_offset = 0;
size_t iosize;
size_t blocksize = inode->i_sb->s_blocksize;
@ -3727,9 +3726,7 @@ int btrfs_do_readpage(struct page *page, struct extent_map **em_cached,
end_bio_extent_readpage, 0,
this_bio_flag,
force_bio_submit);
if (!ret) {
nr++;
} else {
if (ret) {
unlock_extent(tree, cur, cur + iosize - 1);
end_page_read(page, false, cur, iosize);
goto out;