diff options
| author | Ryan Moeller <[email protected]> | 2020-09-15 18:40:03 -0400 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-09-15 15:40:03 -0700 |
| commit | 37325e47499ccdb4eeabfaa61d06a4075390b960 (patch) | |
| tree | b6aa2bd19232e58e01dae4e2d4cfbbc94a844bc8 /module | |
| parent | 085321621e79a75bea41c2b6511da6ebfbf2ba0a (diff) | |
Linux: Prevent destruction while showing mount devname
Use ZFS_ENTER and ZFS_EXIT to protect datasets while their mount
devname is being retrieved.
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Ryan Moeller <[email protected]>
Closes #10892
Closes #10927
Diffstat (limited to 'module')
| -rw-r--r-- | module/os/linux/zfs/zpl_super.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/module/os/linux/zfs/zpl_super.c b/module/os/linux/zfs/zpl_super.c index 333c64746..ec88afee9 100644 --- a/module/os/linux/zfs/zpl_super.c +++ b/module/os/linux/zfs/zpl_super.c @@ -187,10 +187,12 @@ __zpl_show_devname(struct seq_file *seq, zfsvfs_t *zfsvfs) { char *fsname; + ZFS_ENTER(zfsvfs); fsname = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); dmu_objset_name(zfsvfs->z_os, fsname); seq_puts(seq, fsname); kmem_free(fsname, ZFS_MAX_DATASET_NAME_LEN); + ZFS_EXIT(zfsvfs); return (0); } |