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authorNeilBrown2006-02-02 14:28:04 -0800
committerLinus Torvalds2006-02-02 15:07:11 -0800
commitf0ca340cd20b350eab8288974e9a6077900846e8 (patch)
treec438cf3fc472ae1fb22a64cede2e192a72cb97d6 /drivers
parent6d89332b776fc11bac0073209e44ec8f39831e4e (diff)
[PATCH] md: Make sure array geometry changes persist with version-1 superblocks
super_1_sync only updates fields in the superblock that might have changed. 'raid_disks' and 'size' could have changed, but this information doesn't get updated.... until this patch. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/md.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 9fac8ac496c5..06dee51456e8 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1161,6 +1161,9 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->cnt_corrected_read = atomic_read(&rdev->corrected_errors);
+ sb->raid_disks = cpu_to_le32(mddev->raid_disks);
+ sb->size = cpu_to_le64(mddev->size);
+
if (mddev->bitmap && mddev->bitmap_file == NULL) {
sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_offset);
sb->feature_map = cpu_to_le32(MD_FEATURE_BITMAP_OFFSET);