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| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2013-06-22 17:21:00 +0300 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-11-28 14:01:59 +0000 |
| commit | 498a727b33ee121e4b57428257a05f657674af46 (patch) | |
| tree | a987bf6443bbbeea6d0aa6f7b5cfc012dd75c050 /drivers/staging | |
| parent | 3b712f1354a50e043f37583d5f31e013245d7825 (diff) | |
| download | kernel_samsung_smdk4412-498a727b33ee121e4b57428257a05f657674af46.zip kernel_samsung_smdk4412-498a727b33ee121e4b57428257a05f657674af46.tar.gz kernel_samsung_smdk4412-498a727b33ee121e4b57428257a05f657674af46.tar.bz2 | |
zram: allow request end to coincide with disksize
commit 75c7caf5a052ffd8db3312fa7864ee2d142890c4 upstream.
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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/staging')
| -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 d197b3e..e1a4994 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -553,7 +553,7 @@ 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 */ |