aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--fs/nfsd/nfscache.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index f8f060ffbf4f..6040da8830ff 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -224,13 +224,6 @@ hash_refile(struct svc_cacherep *rp)
224 hlist_add_head(&rp->c_hash, cache_hash + hash_32(rp->c_xid, maskbits)); 224 hlist_add_head(&rp->c_hash, cache_hash + hash_32(rp->c_xid, maskbits));
225} 225}
226 226
227static inline bool
228nfsd_cache_entry_expired(struct svc_cacherep *rp)
229{
230 return rp->c_state != RC_INPROG &&
231 time_after(jiffies, rp->c_timestamp + RC_EXPIRE);
232}
233
234/* 227/*
235 * Walk the LRU list and prune off entries that are older than RC_EXPIRE. 228 * Walk the LRU list and prune off entries that are older than RC_EXPIRE.
236 * Also prune the oldest ones when the total exceeds the max number of entries. 229 * Also prune the oldest ones when the total exceeds the max number of entries.
@@ -242,8 +235,14 @@ prune_cache_entries(void)
242 long freed = 0; 235 long freed = 0;
243 236
244 list_for_each_entry_safe(rp, tmp, &lru_head, c_lru) { 237 list_for_each_entry_safe(rp, tmp, &lru_head, c_lru) {
245 if (!nfsd_cache_entry_expired(rp) && 238 /*
246 num_drc_entries <= max_drc_entries) 239 * Don't free entries attached to calls that are still
240 * in-progress, but do keep scanning the list.
241 */
242 if (rp->c_state == RC_INPROG)
243 continue;
244 if (num_drc_entries <= max_drc_entries &&
245 time_before(jiffies, rp->c_timestamp + RC_EXPIRE))
247 break; 246 break;
248 nfsd_reply_cache_free_locked(rp); 247 nfsd_reply_cache_free_locked(rp);
249 freed++; 248 freed++;