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| author | NeilBrown <neilb@suse.de> | 2012-03-19 12:46:37 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-02 09:27:11 -0700 |
| commit | 6990597d9d2f45a969d16d068369f93db0a7d281 (patch) | |
| tree | 3509df1e0836c9125f4354b93837037c9d1d2ab5 /drivers/md | |
| parent | bf8109a3b01b5c64e0ec4b11fa020abca8d00223 (diff) | |
| download | kernel_samsung_smdk4412-6990597d9d2f45a969d16d068369f93db0a7d281.zip kernel_samsung_smdk4412-6990597d9d2f45a969d16d068369f93db0a7d281.tar.gz kernel_samsung_smdk4412-6990597d9d2f45a969d16d068369f93db0a7d281.tar.bz2 | |
md/bitmap: ensure to load bitmap when creating via sysfs.
commit 4474ca42e2577563a919fd3ed782e2ec55bf11a2 upstream.
When commit 69e51b449d383e (md/bitmap: separate out loading a bitmap...)
created bitmap_load, it missed calling it after bitmap_create when a
bitmap is created through the sysfs interface.
So if a bitmap is added this way, we don't allocate memory properly
and can crash.
This is suitable for any -stable release since 2.6.35.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bitmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 574b09a..703a3fa 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1982,6 +1982,8 @@ location_store(mddev_t *mddev, const char *buf, size_t len) if (mddev->pers) { mddev->pers->quiesce(mddev, 1); rv = bitmap_create(mddev); + if (!rv) + rv = bitmap_load(mddev); if (rv) { bitmap_destroy(mddev); mddev->bitmap_info.offset = 0; |