diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-08-28 18:37:31 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-08-28 18:37:31 +0100 |
commit | cdf0bfb0126bbd8c5424ca01fd59fd70d8ea80f9 (patch) | |
tree | e7864d3dacf433b7ccbe17a49b2e72b6a4b3a24c /drivers/md/raid10.c | |
parent | b4f656eea63376da79b0b5a17660c4ce14b71b74 (diff) | |
parent | 6af396a6b6c698eb3834184518fc9a59bc22c817 (diff) |
Merge branch 'for-rmk/barriers' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into devel-stable
Diffstat (limited to 'drivers/md/raid10.c')
-rw-r--r-- | drivers/md/raid10.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 957a719e8c2f..df7b0a06b0ea 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2290,12 +2290,18 @@ static void recovery_request_write(struct mddev *mddev, struct r10bio *r10_bio) d = r10_bio->devs[1].devnum; wbio = r10_bio->devs[1].bio; wbio2 = r10_bio->devs[1].repl_bio; + /* Need to test wbio2->bi_end_io before we call + * generic_make_request as if the former is NULL, + * the latter is free to free wbio2. + */ + if (wbio2 && !wbio2->bi_end_io) + wbio2 = NULL; if (wbio->bi_end_io) { atomic_inc(&conf->mirrors[d].rdev->nr_pending); md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(wbio)); generic_make_request(wbio); } - if (wbio2 && wbio2->bi_end_io) { + if (wbio2) { atomic_inc(&conf->mirrors[d].replacement->nr_pending); md_sync_acct(conf->mirrors[d].replacement->bdev, bio_sectors(wbio2)); |