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btrfs: remove no longer used counter when reading data page

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After commit 92082d4097 ("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>
This commit is contained in:
Filipe Manana 2022-02-03 15:36:44 +00:00 committed by David Sterba
parent bbf0ea7ea3
commit ad3fc7946b
1 changed files with 1 additions and 4 deletions
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5
fs/btrfs/extent_io.c
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@ -3563,7 +3563,6 @@ 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;
@ -3722,9 +3721,7 @@ 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;