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zram: document failed_reads, failed_writes stats

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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>
This commit is contained in:
Sergey Senozhatsky
2014-04-07 15:38:08 -07:00
committed by Linus Torvalds
parent e64cd51d2f
commit 8dd1d3247e
2 changed files with 17 additions and 10 deletions
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Documentation/blockdev/zram.txt
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@@ -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