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| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2014-06-07 02:39:37 -0500 |
|---|---|---|
| committer | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2015-02-23 09:59:07 -0600 |
| commit | 589a1c491621ab81a1955d17d634636522c1b4c1 (patch) | |
| tree | b476b0701562e54da42f4664f4ee81e8bb39f563 /drivers/md/raid1.c | |
| parent | e59721ccdc65dd4fbd8f311a063ecc8f6232dbcc (diff) | |
| download | blackbird-op-linux-589a1c491621ab81a1955d17d634636522c1b4c1.tar.gz blackbird-op-linux-589a1c491621ab81a1955d17d634636522c1b4c1.zip | |
Suspend writes in RAID1 if within range
If there is a resync going on, all nodes must suspend writes to the
range. This is recorded in the suspend_info/suspend_list.
If there is an I/O within the ranges of any of the suspend_info,
should_suspend will return 1.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 4153da5d4011..3aa58ab5b1fd 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1101,8 +1101,10 @@ static void make_request(struct mddev *mddev, struct bio * bio) md_write_start(mddev, bio); /* wait on superblock update early */ if (bio_data_dir(bio) == WRITE && - bio_end_sector(bio) > mddev->suspend_lo && - bio->bi_iter.bi_sector < mddev->suspend_hi) { + ((bio_end_sector(bio) > mddev->suspend_lo && + bio->bi_iter.bi_sector < mddev->suspend_hi) || + (mddev_is_clustered(mddev) && + md_cluster_ops->area_resyncing(mddev, bio->bi_iter.bi_sector, bio_end_sector(bio))))) { /* As the suspend_* range is controlled by * userspace, we want an interruptible * wait. @@ -1113,7 +1115,10 @@ static void make_request(struct mddev *mddev, struct bio * bio) prepare_to_wait(&conf->wait_barrier, &w, TASK_INTERRUPTIBLE); if (bio_end_sector(bio) <= mddev->suspend_lo || - bio->bi_iter.bi_sector >= mddev->suspend_hi) + bio->bi_iter.bi_sector >= mddev->suspend_hi || + (mddev_is_clustered(mddev) && + !md_cluster_ops->area_resyncing(mddev, + bio->bi_iter.bi_sector, bio_end_sector(bio)))) break; schedule(); } |
