diff options
| author | Ming Lei <tom.leiming@gmail.com> | 2017-02-14 16:29:00 +0100 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2017-02-15 20:23:24 +0100 |
| commit | 10273170fd5602d8090b1312e66ad4746ab02c94 (patch) | |
| tree | fabf2633960f4fdbbc1a6963c3fe2011577c42b4 /drivers/md/md.c | |
| parent | block: introduce bio_clone_bioset_partial() (diff) | |
| download | linux-10273170fd5602d8090b1312e66ad4746ab02c94.tar.xz linux-10273170fd5602d8090b1312e66ad4746ab02c94.zip | |
md: fail if mddev->bio_set can't be created
The current behaviour is to fall back to allocate
bio from 'fs_bio_set', that isn't a correct way
because it might cause deadlock.
So this patch simply return failure if mddev->bio_set
can't be created.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/md/md.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 13020e5c8cc0..137a1fe124e8 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5228,8 +5228,11 @@ int md_run(struct mddev *mddev) sysfs_notify_dirent_safe(rdev->sysfs_state); } - if (mddev->bio_set == NULL) + if (mddev->bio_set == NULL) { mddev->bio_set = bioset_create(BIO_POOL_SIZE, 0); + if (!mddev->bio_set) + return -ENOMEM; + } spin_lock(&pers_lock); pers = find_pers(mddev->level, mddev->clevel); |