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authorSean Paul2019-05-22 22:08:21 +0200
committerSean Paul2019-05-22 22:08:21 +0200
commit374ed5429346a021c8e2d26fafce14c5b15dedd0 (patch)
tree70739e93443494993197cc11f41c0fd0a0f3aac0 /net/sunrpc/cache.c
parentvideo/hdmi: Add Unpack function for DRM infoframe (diff)
parentLinux 5.2-rc1 (diff)
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Merge drm/drm-next into drm-misc-next
Backmerging 5.2-rc1 to -misc-next for robher Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'net/sunrpc/cache.c')
-rw-r--r--net/sunrpc/cache.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 12bb23b8e0c5..d22328984853 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -40,6 +40,7 @@
static bool cache_defer_req(struct cache_req *req, struct cache_head *item);
static void cache_revisit_request(struct cache_head *item);
+static bool cache_listeners_exist(struct cache_detail *detail);
static void cache_init(struct cache_head *h, struct cache_detail *detail)
{
@@ -54,6 +55,7 @@ static void cache_init(struct cache_head *h, struct cache_detail *detail)
h->last_refresh = now;
}
+static inline int cache_is_valid(struct cache_head *h);
static void cache_fresh_locked(struct cache_head *head, time_t expiry,
struct cache_detail *detail);
static void cache_fresh_unlocked(struct cache_head *head,
@@ -105,6 +107,8 @@ static struct cache_head *sunrpc_cache_add_entry(struct cache_detail *detail,
if (cache_is_expired(detail, tmp)) {
hlist_del_init_rcu(&tmp->cache_list);
detail->entries --;
+ if (cache_is_valid(tmp) == -EAGAIN)
+ set_bit(CACHE_NEGATIVE, &tmp->flags);
cache_fresh_locked(tmp, 0, detail);
freeme = tmp;
break;
@@ -303,7 +307,8 @@ int cache_check(struct cache_detail *detail,
cache_fresh_unlocked(h, detail);
break;
}
- }
+ } else if (!cache_listeners_exist(detail))
+ rv = try_to_negate_entry(detail, h);
}
if (rv == -EAGAIN) {