diff options
| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2014-04-07 15:38:05 -0700 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2015-05-11 20:41:56 +0800 |
| commit | 0a0d055ef99c20fe0e6b1cced9d358ab2e56eafd (patch) | |
| tree | af447be5a77f2a2268b9a8de3c7af9eede535c07 /drivers | |
| parent | e72baa0d78767e5eeaba4f3a3f82be4b584f57fd (diff) | |
zram: report failed read and write stats
zram accounted but did not report numbers of failed read and write
queries. make these stats available as failed_reads and failed_writes
attrs.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 6444724939db5de7390c90f7b4a657159b3b4465)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index c4179fb54fde..4043e783e50a 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -728,6 +728,8 @@ static DEVICE_ATTR(mem_used_total, S_IRUGO, mem_used_total_show, NULL); ZRAM_ATTR_RO(num_reads); ZRAM_ATTR_RO(num_writes); +ZRAM_ATTR_RO(failed_reads); +ZRAM_ATTR_RO(failed_writes); ZRAM_ATTR_RO(invalid_io); ZRAM_ATTR_RO(notify_free); ZRAM_ATTR_RO(zero_pages); @@ -739,6 +741,8 @@ static struct attribute *zram_disk_attrs[] = { &dev_attr_reset.attr, &dev_attr_num_reads.attr, &dev_attr_num_writes.attr, + &dev_attr_failed_reads.attr, + &dev_attr_failed_writes.attr, &dev_attr_invalid_io.attr, &dev_attr_notify_free.attr, &dev_attr_zero_pages.attr, |