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>

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 10d75929bc291057bd37ab51f5aa0c809cc1724a..6762b994f6f4b70403b262fd31e9e7aa99e95e1f 100644 (file)
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -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;