The patch titled
Subject: coda: avoid flagging NULL inodes
has been added to the -mm tree. Its filename is
coda-avoid-flagging-null-inodes.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/coda-avoid-flagging-null-inodes.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/coda-avoid-flagging-null-inodes.patch
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------------------------------------------------------
From: Jan Harkes <jaharkes@xxxxxxxxxx>
Subject: coda: avoid flagging NULL inodes
Somehow we hit a negative dentry in coda_rename even after checking with
d_really_is_positive. Maybe something raced and turned the new_dentry
negative while we were fixing up directory link counts.
Link: https://lkml.kernel.org/r/20210908140308.18491-5-jaharkes@xxxxxxxxxx
Signed-off-by: Jan Harkes <jaharkes@xxxxxxxxxx>
Cc: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Cc: Jing Yangyang <jing.yangyang@xxxxxxxxxx>
Cc: Xin Tan <tanxin.ctf@xxxxxxxxx>
Cc: Xiyu Yang <xiyuyang19@xxxxxxxxxxxx>
Cc: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/coda/coda_linux.h | 3 +++
1 file changed, 3 insertions(+)
--- a/fs/coda/coda_linux.h~coda-avoid-flagging-null-inodes
+++ a/fs/coda/coda_linux.h
@@ -83,6 +83,9 @@ static __inline__ void coda_flag_inode(s
{
struct coda_inode_info *cii = ITOC(inode);
+ if (!inode)
+ return;
+
spin_lock(&cii->c_lock);
cii->c_flags |= flag;
spin_unlock(&cii->c_lock);
_
Patches currently in -mm which might be from jaharkes@xxxxxxxxxx are
coda-avoid-null-pointer-dereference-from-a-bad-inode.patch
coda-check-for-async-upcall-request-using-local-state.patch
coda-avoid-flagging-null-inodes.patch
coda-avoid-hidden-code-duplication-in-rename.patch
coda-avoid-doing-bad-things-on-inode-type-changes-during-revalidation.patch
coda-bump-module-version-to-72.patch
