Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md

Pull MD updates from Shaohua Li:
 "A few fixes of MD for this merge window. Mostly bug fixes:

   - raid5 stripe batch fix from Amy

   - Read error handling for raid1 FailFast device from Gioh

   - raid10 recovery NULL pointer dereference fix from Guoqing

   - Support write hint for raid5 stripe cache from Mariusz

   - Fixes for device hot add/remove from Neil and Yufen

   - Improve flush bio scalability from Xiao"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
  MD: fix lock contention for flush bios
  md/raid5: Assigning NULL to sh->batch_head before testing bit R5_Overlap of a stripe
  md/raid1: add error handling of read error from FailFast device
  md: fix NULL dereference of mddev->pers in remove_and_add_spares()
  raid5: copy write hint from origin bio to stripe
  md: fix two problems with setting the "re-add" device state.
  raid10: check bio in r10buf_pool_free to void NULL pointer dereference
  md: fix an error code format and remove unsed bio_sector
This commit is contained in:
Linus Torvalds
2018-06-09 12:01:36 -07:00
6 changed files with 149 additions and 71 deletions

View File

@@ -255,9 +255,11 @@ static void r10buf_pool_free(void *__r10_bio, void *data)
for (j = conf->copies; j--; ) {
struct bio *bio = r10bio->devs[j].bio;
rp = get_resync_pages(bio);
resync_free_pages(rp);
bio_put(bio);
if (bio) {
rp = get_resync_pages(bio);
resync_free_pages(rp);
bio_put(bio);
}
bio = r10bio->devs[j].repl_bio;
if (bio)
@@ -2362,7 +2364,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
{
int sect = 0; /* Offset from r10_bio->sector */
int sectors = r10_bio->sectors;
struct md_rdev*rdev;
struct md_rdev *rdev;
int max_read_errors = atomic_read(&mddev->max_corr_read_errors);
int d = r10_bio->devs[r10_bio->read_slot].devnum;