bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

propagate_mnt(): handle all peer groups in the same loop

Browse Source 
the only difference is that for the original group we want to skip
the first element; not worth having the logics twice...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2025-06-27 22:56:43 -04:00
parent 25776a09d8
commit 2b2a34793d
1 changed files with 15 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
fs/pnode.c
View File

@@ -289,7 +289,7 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
struct mount *source_mnt, struct hlist_head *tree_list)
{
struct mount *m, *n;
int ret = 0;
int err = 0;
/*
* we don't want to bother passing tons of arguments to
@@ -303,26 +303,23 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
if (dest_mnt->mnt_master)
SET_MNT_MARK(dest_mnt->mnt_master);
/* all peers of dest_mnt, except dest_mnt itself */
for (n = next_peer(dest_mnt); n != dest_mnt; n = next_peer(n)) {
ret = propagate_one(n, dest_mp);
if (ret)
goto out;
}
/* all slave groups */
for (m = next_group(dest_mnt, dest_mnt); m;
m = next_group(m, dest_mnt)) {
/* everything in that slave group */
n = m;
/* iterate over peer groups, depth first */
for (m = dest_mnt; m && !err; m = next_group(m, dest_mnt)) {
if (m == dest_mnt) { // have one for dest_mnt itself
n = next_peer(m);
if (n == m)
continue;
} else {
n = m;
}
do {
ret = propagate_one(n, dest_mp);
if (ret)
goto out;
err = propagate_one(n, dest_mp);
if (err)
break;
n = next_peer(n);
} while (n != m);
}
out:
hlist_for_each_entry(n, tree_list, mnt_hash) {
m = n->mnt_parent;
if (m->mnt_master)
@@ -330,7 +327,7 @@ out:
}
if (dest_mnt->mnt_master)
CLEAR_MNT_MARK(dest_mnt->mnt_master);
return ret;
return err;
}
/*