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Date: Wed, 30 Dec 2020 15:01:25 +0800 From: YANG LI <abaci-bugfix@...ux.alibaba.com> To: viro@...iv.linux.org.uk Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, YANG LI <abaci-bugfix@...ux.alibaba.com> Subject: [PATCH] fs: fix: second lock in function d_prune_aliases(). Goto statement jumping will cause lock to be executed again without executing unlock, placing the lock statement in front of goto label to fix this problem. Signed-off-by: YANG LI <abaci-bugfix@...ux.alibaba.com> Reported-by: Abaci <abaci@...ux.alibaba.com> --- fs/dcache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/dcache.c b/fs/dcache.c index 97e81a8..bf38446 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1050,6 +1050,6 @@ void d_prune_aliases(struct inode *inode) { struct dentry *dentry; -restart: spin_lock(&inode->i_lock); +restart: hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) { spin_lock(&dentry->d_lock); -- 1.8.3.1
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