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authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-01 16:38:21 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-01 16:38:21 -0800
commitffbf700df204dd25a48a19979a126e37f5dd1e6a (patch)
treed92bf07cda161c226d90baef25423faa65a8acbf /fs/namespace.c
parentd0deeb803cd65c41c37ac106063c46c51d5d43ab (diff)
parent922a6f34c1756d2b0c35d9b2d915b8af19e85965 (diff)
downloadrandom-ffbf700df204dd25a48a19979a126e37f5dd1e6a.tar.gz
Merge tag 'vfs-6.19-rc1.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull autofs update from Christian Brauner: "Prevent futile mount triggers in private mount namespaces. Fix a problematic loop in autofs when a mount namespace contains autofs mounts that are propagation private and there is no namespace-specific automount daemon to handle possible automounting. Previously, attempted path resolution would loop until MAXSYMLINKS was reached before failing, causing significant noise in the log. The fix adds a check in autofs ->d_automount() so that the VFS can immediately return EPERM in this case. Since the mount is propagation private, EPERM is the most appropriate error code" * tag 'vfs-6.19-rc1.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: autofs: dont trigger mount if it cant succeed
Diffstat (limited to 'fs/namespace.c')
-rw-r--r--fs/namespace.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index d7afac807ac38b..35960fd00ee094 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -5148,6 +5148,12 @@ static u64 mnt_to_propagation_flags(struct mount *m)
return propagation;
}
+u64 vfsmount_to_propagation_flags(struct vfsmount *mnt)
+{
+ return mnt_to_propagation_flags(real_mount(mnt));
+}
+EXPORT_SYMBOL_GPL(vfsmount_to_propagation_flags);
+
static void statmount_sb_basic(struct kstatmount *s)
{
struct super_block *sb = s->mnt->mnt_sb;