diff options
| author | Ming Lei <tom.leiming@gmail.com> | 2017-03-17 00:12:35 +0800 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2017-03-24 10:41:37 -0700 |
| commit | 2d06e3b7145bb08705615e6e7400024d8e36a5c0 (patch) | |
| tree | 9d1f8a457a580d37b9ba13f02f44ecf9d49d712d /drivers/md/raid10.c | |
| parent | cdb76be31568604f389f951bd0efadd3f530f2dd (diff) | |
md: raid10: avoid direct access to bvec table in handle_reshape_read_error
All reshape I/O share pages from 1st copy device, so just use that pages
for avoiding direct access to bvec table in handle_reshape_read_error.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md/raid10.c')
| -rw-r--r-- | drivers/md/raid10.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 827bb5bef53c..0f13d57ef646 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4653,7 +4653,10 @@ static int handle_reshape_read_error(struct mddev *mddev, struct r10bio *r10b = &on_stack.r10_bio; int slot = 0; int idx = 0; - struct bio_vec *bvec = r10_bio->master_bio->bi_io_vec; + struct page **pages; + + /* reshape IOs share pages from .devs[0].bio */ + pages = get_resync_pages(r10_bio->devs[0].bio)->pages; r10b->sector = r10_bio->sector; __raid10_find_phys(&conf->prev, r10b); @@ -4682,7 +4685,7 @@ static int handle_reshape_read_error(struct mddev *mddev, success = sync_page_io(rdev, addr, s << 9, - bvec[idx].bv_page, + pages[idx], REQ_OP_READ, 0, false); rdev_dec_pending(rdev, mddev); rcu_read_lock(); |