zram: fix incorrect stat with failed_reads
authorChao Yu <chao2.yu@samsung.com>
Fri, 29 Aug 2014 22:18:37 +0000 (15:18 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 29 Aug 2014 23:28:16 +0000 (16:28 -0700)
commit0cf1e9d6c34d4c82ac3af8015594849814843d36
tree0a70299438127765023ec7415c8b010b35f86838
parent0c38e1fe0fced6aa06dbf444f7203dd7f325e369
zram: fix incorrect stat with failed_reads

Since we allocate a temporary buffer in zram_bvec_read to handle partial
page operations in commit 924bd88d703e ("Staging: zram: allow partial
page operations"), our ->failed_reads value may be incorrect as we do
not increase its value when failing to allocate the temporary buffer.

Let's fix this issue and correct the annotation of failed_reads.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/block/zram/zram_drv.c
drivers/block/zram/zram_drv.h