diff options
| author | NeilBrown <neilb@suse.de> | 2006-02-02 14:28:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-02 15:07:12 -0800 |
| commit | 978f946bb628ef228e13aadf4d4255b8727c4fc3 (patch) | |
| tree | f50dbda1faae2962fdd8c6517d4bc65d3c168862 /drivers/md | |
| parent | f0ca340cd20b350eab8288974e9a6077900846e8 (diff) | |
| download | lwn-978f946bb628ef228e13aadf4d4255b8727c4fc3.tar.gz lwn-978f946bb628ef228e13aadf4d4255b8727c4fc3.zip | |
[PATCH] md: Don't remove bitmap from md array when switching to read-only
While a read-only array doesn't not really need a bitmap, we should
not remove the bitmap when switching an array to read-only because
a/ There is no code to re-add the bitmap which switching to read-write,
b/ There is insufficient locking - the bitmap could be accessed while it is
being removed.
Cc: Reuben Farrelly <reuben-lkml@reub.net>
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/md')
| -rw-r--r-- | drivers/md/md.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 06dee51456e8..653d4dcbee23 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2689,14 +2689,6 @@ static int do_md_stop(mddev_t * mddev, int ro) set_disk_ro(disk, 1); } - bitmap_destroy(mddev); - if (mddev->bitmap_file) { - atomic_set(&mddev->bitmap_file->f_dentry->d_inode->i_writecount, 1); - fput(mddev->bitmap_file); - mddev->bitmap_file = NULL; - } - mddev->bitmap_offset = 0; - /* * Free resources if final stop */ @@ -2706,6 +2698,14 @@ static int do_md_stop(mddev_t * mddev, int ro) struct gendisk *disk; printk(KERN_INFO "md: %s stopped.\n", mdname(mddev)); + bitmap_destroy(mddev); + if (mddev->bitmap_file) { + atomic_set(&mddev->bitmap_file->f_dentry->d_inode->i_writecount, 1); + fput(mddev->bitmap_file); + mddev->bitmap_file = NULL; + } + mddev->bitmap_offset = 0; + ITERATE_RDEV(mddev,rdev,tmp) if (rdev->raid_disk >= 0) { char nm[20]; |