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staging: zram: drop zram_stat_dec/inc functions 

It seems like an overkill to have adding and subtracting
1 functions from the 32bit counters. Just do it directly.

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Davidlohr Bueso 2013-01-01 21:24:29 -08:00 committed by Greg Kroah-Hartman
parent cad683fb9d
commit d178a07c4b
1 changed files with 8 additions and 18 deletions
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26
drivers/staging/zram/zram_drv.c
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@ -42,16 +42,6 @@ struct zram *zram_devices;
/* Module params (documentation at end) */
static unsigned int num_devices = 1;
static void zram_stat_inc(u32 *v)
{
*v = *v + 1;
}
static void zram_stat_dec(u32 *v)
{
*v = *v - 1;
}
static void zram_stat64_add(struct zram *zram, u64 *v, u64 inc)
{
spin_lock(&zram->stat64_lock);
@ -144,22 +134,22 @@ static void zram_free_page(struct zram *zram, size_t index)
*/
if (zram_test_flag(zram, index, ZRAM_ZERO)) {
zram_clear_flag(zram, index, ZRAM_ZERO);
zram_stat_dec(&zram->stats.pages_zero);
zram->stats.pages_zero--;
}
return;
}
if (unlikely(size > max_zpage_size))
zram_stat_dec(&zram->stats.bad_compress);
zram->stats.bad_compress--;
zs_free(zram->mem_pool, handle);
if (size <= PAGE_SIZE / 2)
zram_stat_dec(&zram->stats.good_compress);
zram->stats.good_compress--;
zram_stat64_sub(zram, &zram->stats.compr_size,
zram->table[index].size);
zram_stat_dec(&zram->stats.pages_stored);
zram->stats.pages_stored--;
zram->table[index].handle = 0;
zram->table[index].size = 0;
@ -311,7 +301,7 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index,
kunmap_atomic(user_mem);
if (is_partial_io(bvec))
kfree(uncmem);
zram_stat_inc(&zram->stats.pages_zero);
zram->stats.pages_zero++;
zram_set_flag(zram, index, ZRAM_ZERO);
ret = 0;
goto out;
@ -330,7 +320,7 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index,
}
if (unlikely(clen > max_zpage_size)) {
zram_stat_inc(&zram->stats.bad_compress);
zram->stats.bad_compress++;
src = uncmem;
clen = PAGE_SIZE;
}
@ -353,9 +343,9 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index,
/* Update stats */
zram_stat64_add(zram, &zram->stats.compr_size, clen);
zram_stat_inc(&zram->stats.pages_stored);
zram->stats.pages_stored++;
if (clen <= PAGE_SIZE / 2)
zram_stat_inc(&zram->stats.good_compress);
zram->stats.good_compress++;
return 0;