zram: use generic start/end io accounting

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Use bio generic_start_io_acct() and generic_end_io_acct() to account
device's block layer statistics.  This will let users to monitor zram
activities using sysstat and similar packages/tools.

Apart from the usual per-stat sysfs attr, zram IO stats are now also
available in '/sys/block/zram<id>/stat' and '/proc/diskstats' files.

We will slowly get rid of per-stat sysfs files.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Sergey Senozhatsky 2015-04-15 16:15:57 -07:00 • committed by Linus Torvalds

parent c72c6160d9

commit 8811a9421b

1 changed files with 6 additions and 0 deletions

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drivers/block/zram/zram_drv.c

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