md: raid1/raid10 md devices leak memory when stopping

Hi.

Raid1 and raid10 devices leak memory every time they stop.
This is a patch for linux-3.9.0-rc7 to fix this problem.

Thanks,
Hirokazu Takahashi.

Signed-off-by: Hirokazu Takahashi <taka@valinux.co.jp>
Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index fd86b372692db6d6bd5c6afdd498ae16be49f2c3..c055b92d7eb5e9f8d93a66785db5246cfae167a3 100644 (file)
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2901,6 +2901,7 @@ static int stop(struct mddev *mddev)
        if (conf->r1bio_pool)
                mempool_destroy(conf->r1bio_pool);
        kfree(conf->mirrors);
+       safe_put_page(conf->tmppage);
        kfree(conf->poolinfo);
        kfree(conf);
        mddev->private = NULL;

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 2372926dc559a0e3b77b96bec99d743041a8160b..c35d912a7f9bc62dec0a80934f9b637a99d687d8 100644 (file)
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3826,6 +3826,7 @@ static int stop(struct mddev *mddev)
 
        if (conf->r10bio_pool)
                mempool_destroy(conf->r10bio_pool);
+       safe_put_page(conf->tmppage);
        kfree(conf->mirrors);
        kfree(conf);
        mddev->private = NULL;