diff options
Diffstat (limited to 'kernels/linux-libre-xen/md-raid0-fix-restore-to-sector-variable-in-raid0_mak.patch')
| -rw-r--r-- | kernels/linux-libre-xen/md-raid0-fix-restore-to-sector-variable-in-raid0_mak.patch | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/kernels/linux-libre-xen/md-raid0-fix-restore-to-sector-variable-in-raid0_mak.patch b/kernels/linux-libre-xen/md-raid0-fix-restore-to-sector-variable-in-raid0_mak.patch deleted file mode 100644 index 9f09102dc..000000000 --- a/kernels/linux-libre-xen/md-raid0-fix-restore-to-sector-variable-in-raid0_mak.patch +++ /dev/null @@ -1,50 +0,0 @@ -From a81157768a00e8cf8a7b43b5ea5cac931262374f Mon Sep 17 00:00:00 2001 -From: Eric Work <work.eric@gmail.com> -Date: Mon, 18 May 2015 23:26:23 -0700 -Subject: [PATCH] md/raid0: fix restore to sector variable in - raid0_make_request - -The variable "sector" in "raid0_make_request()" was improperly updated -by a call to "sector_div()" which modifies its first argument in place. -Commit 47d68979cc968535cb87f3e5f2e6a3533ea48fbd restored this variable -after the call for later re-use. Unfortunetly the restore was done after -the referenced variable "bio" was advanced. This lead to the original -value and the restored value being different. Here we move this line to -the proper place. - -One observed side effect of this bug was discarding a file though -unlinking would cause an unrelated file's contents to be discarded. - -Signed-off-by: NeilBrown <neilb@suse.de> -Fixes: 47d68979cc96 ("md/raid0: fix bug with chunksize not a power of 2.") -Cc: stable@vger.kernel.org (any that received above backport) -URL: https://bugzilla.kernel.org/show_bug.cgi?id=98501 ---- - drivers/md/raid0.c | 4 +++- - 1 file changed, 3 insertions(+), 1 deletion(-) - -diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c -index 6a68ef5..efb654e 100644 ---- a/drivers/md/raid0.c -+++ b/drivers/md/raid0.c -@@ -524,6 +524,9 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio) - ? (sector & (chunk_sects-1)) - : sector_div(sector, chunk_sects)); - -+ /* Restore due to sector_div */ -+ sector = bio->bi_iter.bi_sector; -+ - if (sectors < bio_sectors(bio)) { - split = bio_split(bio, sectors, GFP_NOIO, fs_bio_set); - bio_chain(split, bio); -@@ -531,7 +534,6 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio) - split = bio; - } - -- sector = bio->bi_iter.bi_sector; - zone = find_zone(mddev->private, §or); - tmp_dev = map_sector(mddev, zone, sector, §or); - split->bi_bdev = tmp_dev->bdev; --- -2.4.1 - |