* [merged mm-hotfixes-stable] ocfs2-clear-dinode-links-count-in-case-of-error.patch removed from -mm tree
@ 2022-10-21 4:34 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2022-10-21 4:34 UTC (permalink / raw)
To: mm-commits, wangyan122, stable, piaojun, mark, junxiao.bi, jlbec,
ghe, gechangwei, joseph.qi, akpm
The quilt patch titled
Subject: ocfs2: clear dinode links count in case of error
has been removed from the -mm tree. Its filename was
ocfs2-clear-dinode-links-count-in-case-of-error.patch
This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Joseph Qi <joseph.qi@linux.alibaba.com>
Subject: ocfs2: clear dinode links count in case of error
Date: Mon, 17 Oct 2022 21:02:27 +0800
In ocfs2_mknod(), if error occurs after dinode successfully allocated,
ocfs2 i_links_count will not be 0.
So even though we clear inode i_nlink before iput in error handling, it
still won't wipe inode since we'll refresh inode from dinode during inode
lock. So just like clear inode i_nlink, we clear ocfs2 i_links_count as
well. Also do the same change for ocfs2_symlink().
Link: https://lkml.kernel.org/r/20221017130227.234480-2-joseph.qi@linux.alibaba.com
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Yan Wang <wangyan122@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/ocfs2/namei.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
--- a/fs/ocfs2/namei.c~ocfs2-clear-dinode-links-count-in-case-of-error
+++ a/fs/ocfs2/namei.c
@@ -232,6 +232,7 @@ static int ocfs2_mknod(struct user_names
handle_t *handle = NULL;
struct ocfs2_super *osb;
struct ocfs2_dinode *dirfe;
+ struct ocfs2_dinode *fe = NULL;
struct buffer_head *new_fe_bh = NULL;
struct inode *inode = NULL;
struct ocfs2_alloc_context *inode_ac = NULL;
@@ -382,6 +383,7 @@ static int ocfs2_mknod(struct user_names
goto leave;
}
+ fe = (struct ocfs2_dinode *) new_fe_bh->b_data;
if (S_ISDIR(mode)) {
status = ocfs2_fill_new_dir(osb, handle, dir, inode,
new_fe_bh, data_ac, meta_ac);
@@ -454,8 +456,11 @@ roll_back:
leave:
if (status < 0 && did_quota_inode)
dquot_free_inode(inode);
- if (handle)
+ if (handle) {
+ if (status < 0 && fe)
+ ocfs2_set_links_count(fe, 0);
ocfs2_commit_trans(osb, handle);
+ }
ocfs2_inode_unlock(dir, 1);
if (did_block_signals)
@@ -2019,8 +2024,11 @@ bail:
ocfs2_clusters_to_bytes(osb->sb, 1));
if (status < 0 && did_quota_inode)
dquot_free_inode(inode);
- if (handle)
+ if (handle) {
+ if (status < 0 && fe)
+ ocfs2_set_links_count(fe, 0);
ocfs2_commit_trans(osb, handle);
+ }
ocfs2_inode_unlock(dir, 1);
if (did_block_signals)
_
Patches currently in -mm which might be from joseph.qi@linux.alibaba.com are
ocfs2-cluster-use-bitmap-api-instead-of-hand-writing-it.patch
ocfs2-use-bitmap-api-in-fill_node_map.patch
ocfs2-dlm-use-bitmap-api-instead-of-hand-writing-it.patch
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2022-10-21 4:34 [merged mm-hotfixes-stable] ocfs2-clear-dinode-links-count-in-case-of-error.patch removed from -mm tree Andrew Morton
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