[Devel] [PATCH RHEL7 COMMIT] ms/vfs: fix mounting a filesystem with i_version

[Konstantin Khorenko]

The commit is pushed to "branch-rh7-3.10.0-1160.88.1.vz7.195.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-1160.88.1.vz7.195.2
------>
commit ffab82a230ff21f95990064c2be7c1bf0a6fb7e7
Author: Mimi Zohar <zohar at linux.vnet.ibm.com>
Date:   Thu Apr 13 18:47:15 2023 +0800

    ms/vfs: fix mounting a filesystem with i_version
    
    The mount i_version flag is not enabled in the new sb_flags.  This patch
    adds the missing SB_I_VERSION flag.
    
    Fixes: e462ec5 "VFS: Differentiate mount flags (MS_*) from internal
           superblock flags"
    Signed-off-by: Mimi Zohar <zohar at linux.vnet.ibm.com>
    Signed-off-by: Al Viro <viro at zeniv.linux.org.uk>
    
    (cherry picked from commit 917086ff231f614e6705927d8fe3eb6aa74b21bf)
    https://jira.sw.ru/browse/PSBM-144416
    Signed-off-by: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
    
    =================
    Patchset description:
    mount: Port move_mount_set_group and mount_setattr
    
    We need this as in Virtuozzo criu after rebase to mainstream criu in u20
    we will switch to this new API for sharing group setting accross mounts.
    
    https://jira.vzint.dev/browse/PSBM-144416
---
 fs/namespace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 1a62ab03692e..b60e2eab0d85 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3586,7 +3586,8 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 			    SB_MANDLOCK |
 			    SB_DIRSYNC |
 			    SB_SILENT |
-			    SB_POSIXACL);
+			    SB_POSIXACL |
+			    SB_I_VERSION);
 
 	if (flags & MS_REMOUNT)
 		retval = do_remount(&path, flags, sb_flags, mnt_flags,