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| author | Zhao Heming <heming.zhao@suse.com> | 2020-07-21 02:08:53 +0800 |
|---|---|---|
| committer | Song Liu <songliubraving@fb.com> | 2020-07-21 17:30:37 -0700 |
| commit | edee9dfe51b77ad6532a1014a7be91b2a423bc37 (patch) | |
| tree | 17bd346200afb8da9403d838be6be97e09e1f3c9 /drivers | |
| parent | 7c9d5c54fb72d92fe3fd7d3a3eb58b5200e454c4 (diff) | |
| download | linux-edee9dfe51b77ad6532a1014a7be91b2a423bc37.tar.gz | |
md-cluster: fix rmmod issue when md_cluster convert bitmap to none
update_array_info misses calling module_put when removing cluster bitmap. steps to reproduce: ``` node1 # mdadm -C /dev/md0 -b clustered -e 1.2 -n 2 -l mirror /dev/sda /dev/sdb mdadm: array /dev/md0 started. node1 # lsmod | egrep "dlm|md_|raid1" md_cluster 28672 1 dlm 212992 14 md_cluster configfs 57344 2 dlm raid1 53248 1 md_mod 176128 2 raid1,md_cluster node1 # mdadm -G /dev/md0 -b none node1 # lsmod | egrep "dlm|md_|raid1" md_cluster 28672 1 <== should be zero dlm 212992 9 md_cluster configfs 57344 2 dlm raid1 53248 1 md_mod 176128 2 raid1,md_cluster node1 # mdadm -G /dev/md0 -b clustered node1 # lsmod | egrep "dlm|md_|raid1" md_cluster 28672 2 <== increase dlm 212992 14 md_cluster configfs 57344 2 dlm raid1 53248 1 md_mod 176128 2 raid1,md_cluster node1 # mdadm -G /dev/md0 -b none node1 # mdadm -G /dev/md0 -b clustered node1 # lsmod | egrep "dlm|md_|raid1" md_cluster 28672 3 <== increase dlm 212992 14 md_cluster configfs 57344 2 dlm raid1 53248 1 md_mod 176128 2 raid1,md_cluster ``` Reviewed-by: NeilBrown <neilb@suse.de> Signed-off-by: Zhao Heming <heming.zhao@suse.com> Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/md.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 79a6b2f423dd..ea48bc25cce1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7415,6 +7415,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info) mddev->bitmap_info.nodes = 0; md_cluster_ops->leave(mddev); + module_put(md_cluster_mod); mddev->safemode_delay = DEFAULT_SAFEMODE_DELAY; } mddev_suspend(mddev); |