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Diffstat (limited to 'fs/nfs/super.c')
-rw-r--r--fs/nfs/super.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index b30c003b47d1..76e1ee5d03ed 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2417,8 +2417,21 @@ static int nfs_bdi_register(struct nfs_server *server)
int nfs_set_sb_security(struct super_block *s, struct dentry *mntroot,
struct nfs_mount_info *mount_info)
{
- return security_sb_set_mnt_opts(s, &mount_info->parsed->lsm_opts,
- 0, NULL);
+ int error;
+ unsigned long kflags = 0, kflags_out = 0;
+ if (NFS_SB(s)->caps & NFS_CAP_SECURITY_LABEL)
+ kflags |= SECURITY_LSM_NATIVE_LABELS;
+
+ error = security_sb_set_mnt_opts(s, &mount_info->parsed->lsm_opts,
+ kflags, &kflags_out);
+ if (error)
+ goto err;
+
+ if (NFS_SB(s)->caps & NFS_CAP_SECURITY_LABEL &&
+ !(kflags_out & SECURITY_LSM_NATIVE_LABELS))
+ NFS_SB(s)->caps &= ~NFS_CAP_SECURITY_LABEL;
+err:
+ return error;
}
EXPORT_SYMBOL_GPL(nfs_set_sb_security);