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authorSergey Senozhatsky <senozhatsky@chromium.org>2022-11-17 23:13:26 +0900
committerAndrew Morton <akpm@linux-foundation.org>2022-11-30 15:59:01 -0800
commit47939359add5242d27ee6a30e8bcb0cef15ba45c (patch)
tree8d3c492585f9f3d0696484ce845cba267a56e408 /drivers
parent4c74b65f478dc9353780a6be17fc82f1b06cea80 (diff)
zram: remove unused stats fields
We don't show num_reads and num_writes since we removed corresponding sysfs nodes in 2017. Block layer stats are exposed via /sys/block/zramX/stat file. However, we still increment those atomic vars and store them in zram stats. Remove leftovers. Link: https://lkml.kernel.org/r/20221117141326.1105181-1-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/zram/zram_drv.c2
-rw-r--r--drivers/block/zram/zram_drv.h2
2 files changed, 0 insertions, 4 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 9d33801e8ba8..e290d6d97047 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1981,11 +1981,9 @@ static int zram_bvec_rw(struct zram *zram, struct bio_vec *bvec, u32 index,
int ret;
if (!op_is_write(op)) {
- atomic64_inc(&zram->stats.num_reads);
ret = zram_bvec_read(zram, bvec, index, offset, bio);
flush_dcache_page(bvec->bv_page);
} else {
- atomic64_inc(&zram->stats.num_writes);
ret = zram_bvec_write(zram, bvec, index, offset, bio);
}
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index 473325415a74..c5254626f051 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -76,8 +76,6 @@ struct zram_table_entry {
struct zram_stats {
atomic64_t compr_data_size; /* compressed size of pages stored */
- atomic64_t num_reads; /* failed + successful */
- atomic64_t num_writes; /* --do-- */
atomic64_t failed_reads; /* can happen when memory is too low */
atomic64_t failed_writes; /* can happen when memory is too low */
atomic64_t invalid_io; /* non-page-aligned I/O requests */