X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Fcache.c;h=e9d95cf40510808c0466f4d289e69f51665a4ccc;hb=579ee9ab24b7cd3981d927f69ae919dcfaeac5ff;hp=979c9176e33b15f24cfd69a49975a12300f0fa33;hpb=79fd07ce3738aceebc08fd363c14795ae9353057;p=bluesky.git

diff --git a/bluesky/cache.c b/bluesky/cache.c
index 979c917..e9d95cf 100644
--- a/bluesky/cache.c
+++ b/bluesky/cache.c
@@ -14,6 +14,7 @@
 #include "bluesky-private.h"
 
 #define WRITEBACK_DELAY (5 * 1000000)
+#define CACHE_CLEAN_DELAY (30 * 1000000)
 
 /* Filesystem caching and cache coherency. */
 
@@ -36,6 +37,13 @@ static void writeback_complete(gpointer a, gpointer i)
     g_mutex_unlock(inode->lock);
 }
 
+/* Drop cached data for a given inode, if it is clean.  inode must be locked. */
+static void drop_caches(BlueSkyInode *inode)
+{
+    if (inode->type == BLUESKY_REGULAR)
+        bluesky_file_drop_cached(inode);
+}
+
 static void flushd_inode(gpointer value, gpointer user_data)
 {
     BlueSkyFS *fs = (BlueSkyFS *)user_data;
@@ -45,6 +53,9 @@ static void flushd_inode(gpointer value, gpointer user_data)
     g_mutex_lock(inode->lock);
 
     if (inode->change_count == inode->change_commit) {
+        uint64_t delay = bluesky_get_current_time() - inode->access_time;
+        if (delay >= CACHE_CLEAN_DELAY)
+            drop_caches(inode);
         g_mutex_unlock(inode->lock);
         bluesky_inode_unref(inode);
         return;