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| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2014-04-07 15:38:08 -0700 |
|---|---|---|
| committer | Simon Shields <keepcalm444@gmail.com> | 2016-06-12 21:20:02 +1000 |
| commit | 21d7e34531302ffb35a4ca8c6fd67c14060b4100 (patch) | |
| tree | 4db22aa6f8a826d57ec2f8a670fc8c7e197601f1 /Documentation | |
| parent | 0379e619c298e0b53543df4761818f42e0d5a481 (diff) | |
| download | kernel_samsung_smdk4412-21d7e34531302ffb35a4ca8c6fd67c14060b4100.zip kernel_samsung_smdk4412-21d7e34531302ffb35a4ca8c6fd67c14060b4100.tar.gz kernel_samsung_smdk4412-21d7e34531302ffb35a4ca8c6fd67c14060b4100.tar.bz2 | |
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@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-block-zram | 26 | ||||
| -rw-r--r-- | Documentation/blockdev/zram.txt | 3 |
2 files changed, 18 insertions, 11 deletions
diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram index c8b3b48..d460d12 100644 --- a/Documentation/ABI/testing/sysfs-block-zram +++ b/Documentation/ABI/testing/sysfs-block-zram @@ -42,6 +42,21 @@ 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> @@ -52,15 +67,6 @@ 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> @@ -96,4 +102,4 @@ Description: overhead, allocated for this disk. So, allocator space efficiency can be calculated using compr_data_size and this statistic. - Unit: bytes
\ No newline at end of file + Unit: bytes diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt index f82d084..d389fb7 100644 --- a/Documentation/blockdev/zram.txt +++ b/Documentation/blockdev/zram.txt @@ -53,9 +53,10 @@ 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 |