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authorNeilBrown <neilb@suse.de>2010-06-01 11:37:35 +0200
committerNeilBrown <neilb@suse.de>2010-07-26 05:21:34 +0200
commit69e51b449d383e97b1b9f890f8378c96e9e17346 (patch)
tree650123fa4f08e8fa7f348a4ca875c59c129e5d84 /drivers/md/md.c
parentmd/bitmap: prepare for storing write-intent-bitmap via dm-dirty-log. (diff)
downloadlinux-69e51b449d383e97b1b9f890f8378c96e9e17346.tar.xz
linux-69e51b449d383e97b1b9f890f8378c96e9e17346.zip
md/bitmap: separate out loading a bitmap from initialising the structures.
dm makes this distinction between ->ctr and ->resume, so we need to too. Also get the new bitmap_load to clear out the bitmap first, as this is most consistent with the dm suspend/resume approach Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 9d4e44e460e9..40b7ca0294ac 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4594,7 +4594,11 @@ static int do_md_run(mddev_t *mddev)
err = md_run(mddev);
if (err)
goto out;
-
+ err = bitmap_load(mddev);
+ if (err) {
+ bitmap_destroy(mddev);
+ goto out;
+ }
set_capacity(mddev->gendisk, mddev->array_sectors);
revalidate_disk(mddev->gendisk);
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
@@ -5382,8 +5386,11 @@ static int set_bitmap_file(mddev_t *mddev, int fd)
err = 0;
if (mddev->pers) {
mddev->pers->quiesce(mddev, 1);
- if (fd >= 0)
+ if (fd >= 0) {
err = bitmap_create(mddev);
+ if (!err)
+ err = bitmap_load(mddev);
+ }
if (fd < 0 || err) {
bitmap_destroy(mddev);
fd = -1; /* make sure to put the file */
@@ -5632,6 +5639,8 @@ static int update_array_info(mddev_t *mddev, mdu_array_info_t *info)
mddev->bitmap_info.default_offset;
mddev->pers->quiesce(mddev, 1);
rv = bitmap_create(mddev);
+ if (!rv)
+ rv = bitmap_load(mddev);
if (rv)
bitmap_destroy(mddev);
mddev->pers->quiesce(mddev, 0);