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Commit 8dd1d324 authored by Sergey Senozhatsky's avatar Sergey Senozhatsky Committed by Linus Torvalds
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zram: document failed_reads, failed_writes stats 



Document `failed_reads' and `failed_writes' device attributes.
Remove info about `discard' - there is no such zram attr.

Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Jerome 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 e64cd51d

Documentation/ABI/testing/sysfs-block-zram

+15 −9
Original line number Diff line number Diff line
@@ -43,6 +43,21 @@ Description: 
		The invalid_io file is read-only and specifies the number of

		non-page-size-aligned I/O requests issued to this device.



What:		/sys/block/zram<id>/failed_reads

Date:		February 2014

Contact:	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

Description:

		The failed_reads file is read-only and specifies the number of

		failed reads happened on this device.





What:		/sys/block/zram<id>/failed_writes

Date:		February 2014

Contact:	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

Description:

		The failed_writes file is read-only and specifies the number of

		failed writes happened on this device.



What:		/sys/block/zram<id>/notify_free

Date:		August 2010

Contact:	Nitin Gupta <ngupta@vflare.org>
@@ -53,15 +68,6 @@ Description: 
		is freed. This statistic is applicable only when this disk is

		being used as a swap disk.



What:		/sys/block/zram<id>/discard

Date:		August 2010

Contact:	Nitin Gupta <ngupta@vflare.org>

Description:

		The discard file is read-only and specifies the number of

		discard requests received by this device. These requests

		provide information to block device regarding blocks which are

		no longer used by filesystem.



What:		/sys/block/zram<id>/zero_pages

Date:		August 2010

Contact:	Nitin Gupta <ngupta@vflare.org>

Documentation/blockdev/zram.txt

+2 −1
Original line number Diff line number Diff line
@@ -51,9 +51,10 @@ size of the disk when not in use so a huge zram is wasteful. 
		disksize

		num_reads

		num_writes

		failed_reads

		failed_writes

		invalid_io

		notify_free

		discard

		zero_pages

		orig_data_size

		compr_data_size