Andrew Morton
2022-Jun-08 19:16 UTC
[Ocfs2-devel] + ocfs2-kill-ebusy-from-dlmfs_evict_inode.patch added to mm-nonmm-unstable branch
The patch titled
Subject: ocfs2: kill EBUSY from dlmfs_evict_inode
has been added to the -mm mm-nonmm-unstable branch. Its filename is
ocfs2-kill-ebusy-from-dlmfs_evict_inode.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ocfs2-kill-ebusy-from-dlmfs_evict_inode.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Junxiao Bi via Ocfs2-devel <ocfs2-devel at oss.oracle.com>
Subject: ocfs2: kill EBUSY from dlmfs_evict_inode
Date: Tue, 7 Jun 2022 10:12:26 -0700
When unlinking a dlmfs, first it will invoke dlmfs_unlink(), and then
invoke dlmfs_evict_inode(), user_dlm_destroy_lock() is invoked in both
places, the second one from dlmfs_evict_inode() will get EBUSY error
because USER_LOCK_IN_TEARDOWN is already set in lockres. This doesn't
affect any function, just the error log is annoying.
Link: https://lkml.kernel.org/r/20220607171226.86672-1-junxiao.bi at oracle.com
Signed-off-by: Junxiao Bi <junxiao.bi at oracle.com>
Reviewed-by: Joseph Qi <joseph.qi at linux.alibaba.com>
Cc: Mark Fasheh <mark at fasheh.com>
Cc: Joel Becker <jlbec at evilplan.org>
Cc: Junxiao Bi <junxiao.bi at oracle.com>
Cc: Changwei Ge <gechangwei at live.cn>
Cc: Gang He <ghe at suse.com>
Cc: Jun Piao <piaojun at huawei.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
---
fs/ocfs2/dlmfs/dlmfs.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
--- a/fs/ocfs2/dlmfs/dlmfs.c~ocfs2-kill-ebusy-from-dlmfs_evict_inode
+++ a/fs/ocfs2/dlmfs/dlmfs.c
@@ -296,17 +296,25 @@ static void dlmfs_evict_inode(struct ino
{
int status;
struct dlmfs_inode_private *ip;
+ struct user_lock_res *lockres;
+ int teardown;
clear_inode(inode);
mlog(0, "inode %lu\n", inode->i_ino);
ip = DLMFS_I(inode);
+ lockres = &ip->ip_lockres;
if (S_ISREG(inode->i_mode)) {
- status = user_dlm_destroy_lock(&ip->ip_lockres);
- if (status < 0)
- mlog_errno(status);
+ spin_lock(&lockres->l_lock);
+ teardown = !!(lockres->l_flags & USER_LOCK_IN_TEARDOWN);
+ spin_unlock(&lockres->l_lock);
+ if (!teardown) {
+ status = user_dlm_destroy_lock(lockres);
+ if (status < 0)
+ mlog_errno(status);
+ }
iput(ip->ip_parent);
goto clear_fields;
}
_
Patches currently in -mm which might be from ocfs2-devel at oss.oracle.com are
ocfs2-kill-ebusy-from-dlmfs_evict_inode.patch