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| author | NeilBrown <neilb@suse.de> | 2011-08-25 06:43:08 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-08-25 06:43:08 +0200 |
| commit | aeb9b211849621f592288ed5ad694de9eeaae87a (patch) | |
| tree | affa418deafe2f218dc84e4aeb6ed4bbaf85d3e5 | |
| parent | md: report failure if a 'set faulty' request doesn't. (diff) | |
| download | linux-aeb9b211849621f592288ed5ad694de9eeaae87a.tar.xz linux-aeb9b211849621f592288ed5ad694de9eeaae87a.zip | |
md: ensure changes to 'write-mostly' are reflected in metadata.
The 'write-mostly' flag can be changed through sysfs.
With 0.90 metadata, those changes are reflected in the metadata.
For 1.x metadata, they aren't.
So fix super_1_sync to record 'write-mostly' status.
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | drivers/md/md.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 1cd9bfb45e9a..9a880239219d 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1738,6 +1738,11 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev) sb->level = cpu_to_le32(mddev->level); sb->layout = cpu_to_le32(mddev->layout); + if (test_bit(WriteMostly, &rdev->flags)) + sb->devflags |= WriteMostly1; + else + sb->devflags &= ~WriteMostly1; + if (mddev->bitmap && mddev->bitmap_info.file == NULL) { sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_info.offset); sb->feature_map = cpu_to_le32(MD_FEATURE_BITMAP_OFFSET); |