Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 20:51:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Browse Source 
Pull more block fixes from Jens Axboe:
 "Since I mistakenly left out the lightnvm regression fix yesterday and
  the aoeblk seems adequately tested at this point, might as well send
  out another pull to make -rc5"

* 'for-linus' of git://git.kernel.dk/linux-block:
  aoe: fix crash in page count manipulation
  lightnvm: invalid offset calculation for lba_shift
This commit is contained in:
Linus Torvalds 2016-11-13 10:09:04 -08:00
commit 348ce85b0a
2 changed files with 1 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/block/aoe/aoecmd.c
View File

@ -853,45 +853,6 @@ rqbiocnt(struct request *r)
return n;
}
/* This can be removed if we are certain that no users of the block
* layer will ever use zero-count pages in bios. Otherwise we have to
* protect against the put_page sometimes done by the network layer.
*
* See http://oss.sgi.com/archives/xfs/2007-01/msg00594.html for
* discussion.
*
* We cannot use get_page in the workaround, because it insists on a
* positive page count as a precondition. So we use _refcount directly.
*/
static void
bio_pageinc(struct bio *bio)
{
struct bio_vec bv;
struct page *page;
struct bvec_iter iter;
bio_for_each_segment(bv, bio, iter) {
/* Non-zero page count for non-head members of
* compound pages is no longer allowed by the kernel.
*/
page = compound_head(bv.bv_page);
page_ref_inc(page);
}
}
static void
bio_pagedec(struct bio *bio)
{
struct page *page;
struct bio_vec bv;
struct bvec_iter iter;
bio_for_each_segment(bv, bio, iter) {
page = compound_head(bv.bv_page);
page_ref_dec(page);
}
}
static void
bufinit(struct buf *buf, struct request *rq, struct bio *bio)
{
@ -899,7 +860,6 @@ bufinit(struct buf *buf, struct request *rq, struct bio *bio)
buf->rq = rq;
buf->bio = bio;
buf->iter = bio->bi_iter;
bio_pageinc(bio);
}
static struct buf *
@ -1127,7 +1087,6 @@ aoe_end_buf(struct aoedev *d, struct buf *buf)
if (buf == d->ip.buf)
d->ip.buf = NULL;
rq = buf->rq;
bio_pagedec(buf->bio);
mempool_free(buf, d->bufpool);
n = (unsigned long) rq->special;
rq->special = (void *) --n;

2
drivers/nvme/host/lightnvm.c
View File

@ -612,7 +612,7 @@ int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node,
ret = nvm_register(dev);
ns->lba_shift = ilog2(dev->sec_size) - 9;
ns->lba_shift = ilog2(dev->sec_size);
if (sysfs_create_group(&dev->dev.kobj, attrs))
pr_warn("%s: failed to create sysfs group for identification\n",