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Commit 64447249 authored by Sergey Senozhatsky's avatar Sergey Senozhatsky Committed by Linus Torvalds
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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: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: default avatarMinchan Kim <minchan@kernel.org>
Acked-by: default avatarJerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a68eb3b6

drivers/block/zram/zram_drv.c

+4 −0
Original line number Diff line number Diff line
@@ -730,6 +730,8 @@ 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);
@@ -741,6 +743,8 @@ 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,