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-rw-r--r--fs/dcache.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index cb4a106..265e0ce 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3116,26 +3116,28 @@ char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
/*
* Write full pathname from the root of the filesystem into the buffer.
*/
-static char *__dentry_path(struct dentry *dentry, char *buf, int buflen)
+static char *__dentry_path(struct dentry *d, char *buf, int buflen)
{
+ struct dentry *dentry;
char *end, *retval;
int len, seq = 0;
int error = 0;
+ if (buflen < 2)
+ goto Elong;
+
rcu_read_lock();
restart:
+ dentry = d;
end = buf + buflen;
len = buflen;
prepend(&end, &len, "\0", 1);
- if (buflen < 1)
- goto Elong;
/* Get '/' right */
retval = end-1;
*retval = '/';
read_seqbegin_or_lock(&rename_lock, &seq);
while (!IS_ROOT(dentry)) {
struct dentry *parent = dentry->d_parent;
- int error;
prefetch(parent);
error = prepend_name(&end, &len, &dentry->d_name);
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