| Message ID | 1379534475-19919-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index dd915ce..73534ec 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -473,7 +473,7 @@ 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 */
This is a note to let you know that I have just added a patch titled zram: allow request end to coincide with disksize to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue This patch is scheduled to be released in version 3.8.13.10. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.8.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 3a988815d74b5d6214bf7ad3faf7fe9a36689cdc Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Date: Sat, 22 Jun 2013 17:21:00 +0300 Subject: 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: Kamal Mostafa <kamal@canonical.com> --- drivers/staging/zram/zram_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.8.1.2