Commit 76097eb7 authored by Jan Harkes's avatar Jan Harkes Committed by Linus Torvalds
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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@cs.cmu.edu


Signed-off-by: default avatarJan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b1deb685

fs/coda/coda_linux.h

+3 −0
Original line number Diff line number Diff line
@@ -83,6 +83,9 @@ static __inline__ void coda_flag_inode(struct inode *inode, int flag) 
{

	struct coda_inode_info *cii = ITOC(inode);



	if (!inode)

		return;



	spin_lock(&cii->c_lock);

	cii->c_flags |= flag;

	spin_unlock(&cii->c_lock);