archives/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-03-08 04:24:31 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

change_mnt_propagation(): do_make_slave() is a no-op unless IS_MNT_SHARED()

Browse source 
... since mnt->mnt_share and mnt->mnt_slave_list are guaranteed to be empty unless
IS_MNT_SHARED(mnt).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2025-06-24 23:25:00 -04:00
parent d5f15047f1
commit ef86251194
1 changed files with 4 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

9
fs/pnode.c
View file

@ -70,10 +70,8 @@ static int do_make_slave(struct mount *mnt)
struct mount *master, *slave_mnt;
if (list_empty(&mnt->mnt_share)) {
if (IS_MNT_SHARED(mnt)) {
mnt_release_group_id(mnt);
CLEAR_MNT_SHARED(mnt);
}
mnt_release_group_id(mnt);
CLEAR_MNT_SHARED(mnt);
master = mnt->mnt_master;
if (!master) {
struct list_head *p = &mnt->mnt_slave_list;
@ -119,7 +117,8 @@ void change_mnt_propagation(struct mount *mnt, int type)
set_mnt_shared(mnt);
return;
}
do_make_slave(mnt);
if (IS_MNT_SHARED(mnt))
do_make_slave(mnt);
list_del_init(&mnt->mnt_slave);
if (type == MS_SLAVE) {
if (mnt->mnt_master)