1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 18a4cc9feeb3..626dfd38528f 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -2086,6 +2086,9 @@ nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
         } else
                 size = 0;
 
+        error = mnt_want_write(fhp->fh_export->ex_path.mnt);
+        if (error)
+                goto getout;
         if (size)
                 error = vfs_setxattr(fhp->fh_dentry, name, value, size, 0);
         else {
@@ -2097,6 +2100,7 @@ nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
                                 error = 0;
                 }
         }
+        mnt_drop_write(fhp->fh_export->ex_path.mnt);
 
 getout:
         kfree(value);