diff options
| author | NeilBrown <neilb@suse.de> | 2012-11-19 00:47:48 +0100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-11-20 00:27:37 +0100 |
| commit | 5eff3c439d3478ba9e8ba5f8c0aaf6e6fadb6e58 (patch) | |
| tree | 4e60271793978e8ee07f73360a2044a33a8d91de /drivers/md | |
| parent | md: Avoid write invalid address if read_seqretry returned true. (diff) | |
| download | linux-5eff3c439d3478ba9e8ba5f8c0aaf6e6fadb6e58.tar.xz linux-5eff3c439d3478ba9e8ba5f8c0aaf6e6fadb6e58.zip | |
md: make sure everything is freed when dm-raid stops an array.
md_stop() would stop an array, but not free various attached
data structures.
For internal arrays, these are freed later in do_md_stop() or
mddev_put(), but they don't apply for dm-raid arrays.
So get md_stop() to free them, and only all it from dm-raid.
For internal arrays we now call __md_stop.
Reported-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 4c7d880a60a4..61200717687b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5294,7 +5294,7 @@ void md_stop_writes(struct mddev *mddev) } EXPORT_SYMBOL_GPL(md_stop_writes); -void md_stop(struct mddev *mddev) +static void __md_stop(struct mddev *mddev) { mddev->ready = 0; mddev->pers->stop(mddev); @@ -5304,6 +5304,18 @@ void md_stop(struct mddev *mddev) mddev->pers = NULL; clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); } + +void md_stop(struct mddev *mddev) +{ + /* stop the array and free an attached data structures. + * This is called from dm-raid + */ + __md_stop(mddev); + bitmap_destroy(mddev); + if (mddev->bio_set) + bioset_free(mddev->bio_set); +} + EXPORT_SYMBOL_GPL(md_stop); static int md_set_readonly(struct mddev *mddev, struct block_device *bdev) @@ -5364,7 +5376,7 @@ static int do_md_stop(struct mddev * mddev, int mode, set_disk_ro(disk, 0); __md_stop_writes(mddev); - md_stop(mddev); + __md_stop(mddev); mddev->queue->merge_bvec_fn = NULL; mddev->queue->backing_dev_info.congested_fn = NULL; |