Changeset 8e13bfa in mainline for uspace/srv/vfs/vfs_ops.c

Timestamp:

2009-06-10T18:49:37Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0d3b9474

Parents:

0e31a2b

Message:

Synchronize access to pending_req.

File:

• uspace/srv/vfs/vfs_ops.c (modified) (4 diffs)

uspace/srv/vfs/vfs_ops.c

@@ -67 +67 @@
 } pending_req_t;
 
+FIBRIL_MUTEX_INITIALIZE(pending_lock);
 LIST_INITIALIZE(pending_req);
 
@@ -264 +265 @@
         
 loop:
+        fibril_mutex_lock(&pending_lock);
         for (cur = pending_req.next; cur != &pending_req; cur = cur->next) {
                 pending_req_t *pr = list_get_instance(cur, pending_req_t, link);
-                
+
                 fs_handle_t fs_handle = fs_name_to_handle(pr->fs_name, true);
                 if (!fs_handle)
@@ -283 +285 @@
                 list_remove(cur);
                 free(pr);
+                fibril_mutex_unlock(&pending_lock);
+                fibril_yield();
                 goto loop;
         }
+        fibril_mutex_unlock(&pending_lock);
 }
 
@@ -463 +468 @@
                         pr->dev_handle = dev_handle;
                         link_initialize(&pr->link);
+                        fibril_mutex_lock(&pending_lock);
                         list_append(&pr->link, &pending_req);
+                        fibril_mutex_unlock(&pending_lock);
                         return;
                 }