diff options
| author | Jens Axboe <axboe@kernel.dk> | 2013-04-02 10:04:39 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2013-04-02 10:04:39 +0200 |
| commit | 64f8de4da7d3962632f152d3d702d68bb8accc29 (patch) | |
| tree | c90a872a6d91c824635d59572e1e578980f4bc98 /block | |
| parent | aoe: Fix unitialized var usage (diff) | |
| parent | writeback: expose the bdi_wq workqueue (diff) | |
| download | linux-64f8de4da7d3962632f152d3d702d68bb8accc29.tar.xz linux-64f8de4da7d3962632f152d3d702d68bb8accc29.zip | |
Merge branch 'writeback-workqueue' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq into for-3.10/core
Tejun writes:
-----
This is the pull request for the earlier patchset[1] with the same
name. It's only three patches (the first one was committed to
workqueue tree) but the merge strategy is a bit involved due to the
dependencies.
* Because the conversion needs features from wq/for-3.10,
block/for-3.10/core is based on rc3, and wq/for-3.10 has conflicts
with rc3, I pulled mainline (rc5) into wq/for-3.10 to prevent those
workqueue conflicts from flaring up in block tree.
* Resolving the issue that Jan and Dave raised about debugging
requires arch-wide changes. The patchset is being worked on[2] but
it'll have to go through -mm after these changes show up in -next,
and not included in this pull request.
The three commits are located in the following git branch.
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git writeback-workqueue
Pulling it into block/for-3.10/core produces a conflict in
drivers/md/raid5.c between the following two commits.
e3620a3ad5 ("MD RAID5: Avoid accessing gendisk or queue structs when not available")
2f6db2a707 ("raid5: use bio_reset()")
The conflict is trivial - one removes an "if ()" conditional while the
other removes "rbi->bi_next = NULL" right above it. We just need to
remove both. The merged branch is available at
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git block-test-merge
so that you can use it for verification. The test merge commit has
proper merge description.
While these changes are a bit of pain to route, they make code simpler
and even have, while minute, measureable performance gain[3] even on a
workload which isn't particularly favorable to showing the benefits of
this conversion.
----
Fixed up the conflict.
Conflicts:
drivers/md/raid5.c
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-flush.c | 2 | ||||
| -rw-r--r-- | block/partition-generic.c | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index db8f1b507857..cc2b827a853c 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -444,7 +444,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask, * copied from blk_rq_pos(rq). */ if (error_sector) - *error_sector = bio->bi_sector; + *error_sector = bio->bi_sector; if (!bio_flagged(bio, BIO_UPTODATE)) ret = -EIO; diff --git a/block/partition-generic.c b/block/partition-generic.c index 789cdea05893..ae95ee6a58aa 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -257,6 +257,7 @@ void delete_partition(struct gendisk *disk, int partno) hd_struct_put(part); } +EXPORT_SYMBOL(delete_partition); static ssize_t whole_disk_show(struct device *dev, struct device_attribute *attr, char *buf) |