Try to clean up the locking for LRU lists.

[bluesky.git] / bluesky / file.c

diff --git a/bluesky/file.c b/bluesky/file.c
index ee4179e..8be3ea1 100644 (file)
--- a/bluesky/file.c
+++ b/bluesky/file.c
@@ -44,6 +44,12 @@ void bluesky_block_touch(BlueSkyInode *inode, uint64_t i)
         break;
     }
 
+    if (block->type != BLUESKY_BLOCK_CACHED
+            && block->type != BLUESKY_BLOCK_DIRTY)
+        g_atomic_int_add(&inode->fs->cache_total, 1);
+    if (block->type != BLUESKY_BLOCK_DIRTY)
+        g_atomic_int_add(&inode->fs->cache_dirty, 1);
+
     block->type = BLUESKY_BLOCK_DIRTY;
 }
 
@@ -87,6 +93,11 @@ void bluesky_file_truncate(BlueSkyInode *inode, uint64_t size)
         for (guint i = inode->blocks->len; i < blocks; i++) {
             BlueSkyBlock *b = &g_array_index(inode->blocks, BlueSkyBlock, i);
             g_free(b->ref);
+            if (b->type == BLUESKY_BLOCK_CACHED
+                    || b->type == BLUESKY_BLOCK_DIRTY)
+                g_atomic_int_add(&inode->fs->cache_total, -1);
+            if (b->type == BLUESKY_BLOCK_DIRTY)
+                g_atomic_int_add(&inode->fs->cache_dirty, -1);
             bluesky_string_unref(b->data);
         }
         g_array_set_size(inode->blocks, blocks);
@@ -232,6 +243,7 @@ void bluesky_block_fetch(BlueSkyFS *fs, BlueSkyBlock *block,
         bluesky_store_async_wait(async);
 
     bluesky_store_async_unref(async);
+    g_atomic_int_add(&fs->cache_total, 1);
 }
 
 /* Write the given block to cloud-backed storage and mark it clean. */
@@ -263,6 +275,7 @@ void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
     block->ref = name;
 
     block->type = BLUESKY_BLOCK_CACHED;
+    g_atomic_int_add(&fs->cache_dirty, -1);
 
     g_checksum_free(csum);
 }
@@ -290,9 +303,12 @@ void bluesky_file_drop_cached(BlueSkyInode *inode)
                   "Dropping block %d of inode %"PRIu64" from cache",
                   i, inode->inum);
 
+            g_log("bluesky/cache", G_LOG_LEVEL_DEBUG,
+                  "  (reference count was %d)", b->data->refcount);
             bluesky_string_unref(b->data);
             b->data = NULL;
             b->type = BLUESKY_BLOCK_REF;
+            g_atomic_int_add(&inode->fs->cache_total, -1);
         }
     }
 }