Subject: + zram-document-failed_reads-failed_writes-stats.patch added to -mm tree
To: sergey.senozhatsky@xxxxxxxxx,jmarchan@xxxxxxxxxx,minchan@xxxxxxxxxx,ngupta@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 05 Feb 2014 12:45:39 -0800
The patch titled
Subject: zram: document failed_reads, failed_writes stats
has been added to the -mm tree. Its filename is
zram-document-failed_reads-failed_writes-stats.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/zram-document-failed_reads-failed_writes-stats.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/zram-document-failed_reads-failed_writes-stats.patch
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From: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Subject: 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: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Jerome Marchand <jmarchan@xxxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/ABI/testing/sysfs-block-zram | 24 +++++++++++--------
Documentation/blockdev/zram.txt | 3 +-
2 files changed, 17 insertions(+), 10 deletions(-)
diff -puN Documentation/ABI/testing/sysfs-block-zram~zram-document-failed_reads-failed_writes-stats Documentation/ABI/testing/sysfs-block-zram
--- a/Documentation/ABI/testing/sysfs-block-zram~zram-document-failed_reads-failed_writes-stats
+++ a/Documentation/ABI/testing/sysfs-block-zram
@@ -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@xxxxxxxxx>
+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@xxxxxxxxx>
+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@xxxxxxxxxx>
@@ -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@xxxxxxxxxx>
-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@xxxxxxxxxx>
diff -puN Documentation/blockdev/zram.txt~zram-document-failed_reads-failed_writes-stats Documentation/blockdev/zram.txt
--- a/Documentation/blockdev/zram.txt~zram-document-failed_reads-failed_writes-stats
+++ a/Documentation/blockdev/zram.txt
@@ -51,9 +51,10 @@ size of the disk when not in use so a hu
disksize
num_reads
num_writes
+ failed_reads
+ failed_writes
invalid_io
notify_free
- discard
zero_pages
orig_data_size
compr_data_size
_
Patches currently in -mm which might be from sergey.senozhatsky@xxxxxxxxx are
zram-drop-init_done-struct-zram-member.patch
zram-do-not-pass-rw-argument-to-__zram_make_request.patch
zram-remove-good-and-bad-compress-stats.patch
zram-use-atomic64_t-for-all-zram-stats.patch
zram-remove-zram-stats-code-duplication.patch
zram-report-failed-read-and-write-stats.patch
zram-drop-not-used-table-count-member.patch
zram-move-zram-size-warning-to-documentation.patch
zram-document-failed_reads-failed_writes-stats.patch
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