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| author |   Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2013-06-22 17:21:00 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-24 16:08:32 -0700 |
| commit | 75c7caf5a052ffd8db3312fa7864ee2d142890c4 (patch) | |
| tree | 88d8e7f6f2c0bbc40c44e22924c6287e017d72f9 /drivers/staging/zram/zram_drv.c | |
| parent | staging: drm/imx: use generic irq chip unused field to block out invalid irqs (diff) | |
| download | linux-dev-75c7caf5a052ffd8db3312fa7864ee2d142890c4.tar.xz linux-dev-75c7caf5a052ffd8db3312fa7864ee2d142890c4.zip | |
zram: allow request end to coincide with disksize
Pass valid_io_request() checks if request end coincides with disksize
(end equals bound), only fail if we attempt to read beyond the bound.
mkfs.ext2 produces numerous errors:
[ 2164.632747] quiet_error: 1 callbacks suppressed
[ 2164.633260] Buffer I/O error on device zram0, logical block 153599
[ 2164.633265] lost page write due to I/O error on zram0
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/zram/zram_drv.c')
| -rw-r--r-- | drivers/staging/zram/zram_drv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 753877431b5f..82c7202fd5cc 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -180,7 +180,7 @@ static inline int valid_io_request(struct zram *zram, struct bio *bio) end = start + (bio->bi_size >> SECTOR_SHIFT); bound = zram->disksize >> SECTOR_SHIFT; /* out of range range */ - if (unlikely(start >= bound || end >= bound || start > end)) + if (unlikely(start >= bound || end > bound || start > end)) return 0; /* I/O request is valid */ |