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path: root/fs/cifs/dfs_cache.c
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Diffstat (limited to 'fs/cifs/dfs_cache.c')
-rw-r--r--fs/cifs/dfs_cache.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index 58d11be9d020..308101d90006 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -644,7 +644,9 @@ static struct cache_entry *__lookup_cache_entry(const char *path, unsigned int h
*
* Use whole path components in the match. Must be called with htable_rw_lock held.
*
+ * Return cached entry if successful.
* Return ERR_PTR(-ENOENT) if the entry is not found.
+ * Return error ptr otherwise.
*/
static struct cache_entry *lookup_cache_entry(const char *path)
{
@@ -789,8 +791,13 @@ static struct cache_entry *cache_refresh_path(const unsigned int xid,
down_read(&htable_rw_lock);
ce = lookup_cache_entry(path);
- if (!IS_ERR(ce) && !force_refresh && !cache_entry_expired(ce))
+ if (!IS_ERR(ce)) {
+ if (!force_refresh && !cache_entry_expired(ce))
+ return ce;
+ } else if (PTR_ERR(ce) != -ENOENT) {
+ up_read(&htable_rw_lock);
return ce;
+ }
/*
* Unlock shared access as we don't want to hold any locks while getting
@@ -822,7 +829,7 @@ static struct cache_entry *cache_refresh_path(const unsigned int xid,
if (rc)
ce = ERR_PTR(rc);
}
- } else {
+ } else if (PTR_ERR(ce) == -ENOENT) {
ce = add_cache_entry_locked(refs, numrefs);
}