From: Richard Weinberger <richard@nod.at>
To: linux-nfs@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
jlayton@kernel.org, chuck.lever@oracle.com, anna@kernel.org,
trond.myklebust@hammerspace.com, viro@zeniv.linux.org.uk,
raven@themaw.net, chris.chilvers@appsbroker.com,
david.young@appsbroker.com, luis.turcitu@appsbroker.com,
david@sigma-star.at, Richard Weinberger <richard@nod.at>
Subject: [PATCH 2/3] fs: namei: Allow follow_down() to uncover auto mounts
Date: Thu, 17 Nov 2022 20:11:50 +0100 [thread overview]
Message-ID: <20221117191151.14262-3-richard@nod.at> (raw)
In-Reply-To: <20221117191151.14262-1-richard@nod.at>
This function is only used by NFSD to cross mount points.
If a mount point is of type auto mount, follow_down() will
not uncover it. Add LOOKUP_AUTOMOUNT to the lookup flags
to have ->d_automount() called when NFSD walks down the
mount tree.
Signed-off-by: Richard Weinberger <richard@nod.at>
---
fs/namei.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/namei.c b/fs/namei.c
index 578c2110df02..000c4b84e6be 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1462,7 +1462,7 @@ int follow_down(struct path *path)
{
struct vfsmount *mnt = path->mnt;
bool jumped;
- int ret = traverse_mounts(path, &jumped, NULL, 0);
+ int ret = traverse_mounts(path, &jumped, NULL, LOOKUP_AUTOMOUNT);
if (path->mnt != mnt)
mntput(mnt);
--
2.26.2
next prev parent reply other threads:[~2022-11-17 19:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 19:11 [PATCH 0/3] NFS: NFSD: Allow crossing mounts when re-exporting Richard Weinberger
2022-11-17 19:11 ` [PATCH 1/3] NFSD: Teach nfsd_mountpoint() auto mounts Richard Weinberger
2022-11-17 19:11 ` Richard Weinberger [this message]
2022-11-17 21:01 ` [PATCH 2/3] fs: namei: Allow follow_down() to uncover " Jeff Layton
2022-11-17 21:12 ` Richard Weinberger
2022-11-17 21:42 ` Jeff Layton
2022-11-27 21:29 ` Richard Weinberger
2022-11-28 11:49 ` Jeff Layton
2022-11-17 23:37 ` Ian Kent
2022-11-17 19:11 ` [PATCH 3/3] NFS: nfs_encode_fh: Remove S_AUTOMOUNT check Richard Weinberger
2022-12-07 8:43 [PATCH 0/3 v2] NFS: NFSD: Allow crossing mounts when re-exporting Richard Weinberger
2022-12-07 8:43 ` [PATCH 2/3] fs: namei: Allow follow_down() to uncover auto mounts Richard Weinberger
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