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authorBrian Behlendorf <[email protected]>2019-10-04 12:30:51 -0700
committerGitHub <[email protected]>2019-10-04 12:30:51 -0700
commit6bd4f4545d3d334442fbe87d40ad0e0542703ce6 (patch)
treeb5dd68d31b02cec719dc2f11d0e7f658c34a3f11
parent2cc479d049eb84b9cd7da9f2d64266429f3c3201 (diff)
Fix automount for root filesystems
Commit 093bb64 resolved an automount failures for chroot'd processes but inadvertently broke automounting for root filesystems where the vfs_mntpoint is NULL. Resolve the issue by checking for NULL in order to generate the correct path. Reviewed-by: Tom Caputi <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #9381 Closes #9384
-rw-r--r--module/os/linux/zfs/zfs_ctldir.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/module/os/linux/zfs/zfs_ctldir.c b/module/os/linux/zfs/zfs_ctldir.c
index 1e61ef06d..3b2a6eb82 100644
--- a/module/os/linux/zfs/zfs_ctldir.c
+++ b/module/os/linux/zfs/zfs_ctldir.c
@@ -1053,7 +1053,8 @@ zfsctl_snapshot_mount(struct path *path, int flags)
* on mount.zfs(8).
*/
snprintf(full_path, MAXPATHLEN, "%s/.zfs/snapshot/%s",
- zfsvfs->z_vfs->vfs_mntpoint, dname(dentry));
+ zfsvfs->z_vfs->vfs_mntpoint ? zfsvfs->z_vfs->vfs_mntpoint : "",
+ dname(dentry));
/*
* Multiple concurrent automounts of a snapshot are never allowed.