[Devel] [PATCH RH9 05/14] ve/kernfs: fix lookup for kernfs superblock

[Andrey Zhadchenko]

From: Konstantin Khorenko <khorenko at virtuozzo.com>

sysfs (kernfs) mount looks up for already existing superblock,
but uses non-inited kernfs_super_info->ve field for comparison.

Fill the ve field before existing superblock lookup.

https://jira.sw.ru/browse/PSBM-85052
https://jira.sw.ru/browse/PSBM-103433

Signed-off-by: Konstantin Khorenko <khorenko at virtuozzo.com>

[VvS RHEL7.8 rebase] context changes
Signed-off-by: Andrey Ryabinin <aryabinin at virtuozzo.com>

(cherry picked from vz8 commit 1fbfb821a1d844ec06f88f5e38c5cb6237cad66f)
Signed-off-by: Andrey Zhadchenko <andrey.zhadchenko at virtuozzo.com>
---
 fs/kernfs/mount.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
index fd0ae3b..a09515e 100644
--- a/fs/kernfs/mount.c
+++ b/fs/kernfs/mount.c
@@ -327,6 +327,7 @@ int kernfs_get_tree(struct fs_context *fc)
 	info->root = kfc->root;
 	info->ns = kfc->ns_tag;
 	INIT_LIST_HEAD(&info->node);
+	info->ve = get_exec_env();
 
 	fc->s_fs_info = info;
 	sb = sget_fc(fc, kernfs_test_super, kernfs_set_super);
-- 
1.8.3.1