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Code Pull requests 5 Wiki Activity

dm writecache: remove disabled code in memory_entry()

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This dead branch was missed during review.  It only makes memory_entry()
more inefficient due to needless call to is_power_of_2(), etc.

Reported-by: shenghui <shhuiw@foxmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2018-10-22 10:59:52 -04:00
parent 3d4e738311
commit da4ad3a23a
1 changed files with 1 additions and 4 deletions
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5
drivers/md/dm-writecache.c
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@ -350,10 +350,7 @@ static struct wc_memory_superblock *sb(struct dm_writecache *wc)
static struct wc_memory_entry *memory_entry(struct dm_writecache *wc, struct wc_entry *e)
{
if (is_power_of_2(sizeof(struct wc_entry)) && 0)
return &sb(wc)->entries[e - wc->entries];
else
return &sb(wc)->entries[e->index];
return &sb(wc)->entries[e->index];
}
static void *memory_data(struct dm_writecache *wc, struct wc_entry *e)