linux-stable/drivers/block/zram
Sergey Senozhatsky 623e47fc64 zram: introduce per-device debug_stat sysfs node
debug_stat sysfs is read-only and represents various debugging data that
zram developers may need.  This file is not meant to be used by anyone
else: its content is not documented and will change any time w/o any
notice.  Therefore, the output of debug_stat file contains a version
string.  To avoid any confusion, we will increase the version number
every time we modify the output.

At the moment this file exports only one value -- the number of
re-compressions, IOW, the number of times compression fast path has
failed.  This stat is temporary any will be useful in case if any
per-cpu compression streams regressions will be reported.

Link: http://lkml.kernel.org/r/20160513230834.GB26763@bbox
Link: http://lkml.kernel.org/r/20160511134553.12655-1-sergey.senozhatsky@gmail.com
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20 17:58:30 -07:00
..
Kconfig zram: remove obsolete ZRAM_DEBUG option 2015-06-25 17:00:35 -07:00
Makefile zram: add lz4 algorithm backend 2014-04-07 16:36:01 -07:00
zcomp.c zram: remove max_comp_streams internals 2016-05-20 17:58:30 -07:00
zcomp.h zram: user per-cpu compression streams 2016-05-20 17:58:30 -07:00
zcomp_lz4.c zram/zcomp: do not zero out zcomp private pages 2016-01-15 11:40:52 -08:00
zcomp_lz4.h zram: add lz4 algorithm backend 2014-04-07 16:36:01 -07:00
zcomp_lzo.c zram/zcomp: do not zero out zcomp private pages 2016-01-15 11:40:52 -08:00
zcomp_lzo.h zram: introduce compressing backend abstraction 2014-04-07 16:36:01 -07:00
zram_drv.c zram: introduce per-device debug_stat sysfs node 2016-05-20 17:58:30 -07:00
zram_drv.h zram: introduce per-device debug_stat sysfs node 2016-05-20 17:58:30 -07:00