[PATCH] RFS: Use unprotected chain operations

[Sebastian Huber]

This area is protected by the RFS file system instance lock.
---
 cpukit/libfs/src/rfs/rtems-rfs-buffer.c |   23 +++++++++++++----------
 cpukit/libfs/src/rfs/rtems-rfs-file.c   |    4 ++--
 2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/cpukit/libfs/src/rfs/rtems-rfs-buffer.c b/cpukit/libfs/src/rfs/rtems-rfs-buffer.c
index 8e7e16b..ff1d2c7 100644
--- a/cpukit/libfs/src/rfs/rtems-rfs-buffer.c
+++ b/cpukit/libfs/src/rfs/rtems-rfs-buffer.c
@@ -61,7 +61,7 @@ rtems_rfs_scan_chain (rtems_chain_control*   chain,
                 ((intptr_t)(buffer->user)));
 
       (*count)--;
-      rtems_chain_extract (node);
+      rtems_chain_extract_unprotected (node);
       rtems_chain_set_off_chain (node);
       return buffer;
     }
@@ -181,7 +181,8 @@ rtems_rfs_buffer_handle_request (rtems_rfs_file_system*   fs,
    * Increase the reference count of the buffer.
    */
   rtems_rfs_buffer_refs_up (handle);
-  rtems_chain_append (&fs->buffers, rtems_rfs_buffer_link (handle));
+  rtems_chain_append_unprotected (&fs->buffers,
+                                  rtems_rfs_buffer_link (handle));
   fs->buffers_count++;
 
   handle->buffer->user = (void*) ((intptr_t) block);
@@ -215,7 +216,7 @@ rtems_rfs_buffer_handle_release (rtems_rfs_file_system*   fs,
 
     if (rtems_rfs_buffer_refs (handle) == 0)
     {
-      rtems_chain_extract (rtems_rfs_buffer_link (handle));
+      rtems_chain_extract_unprotected (rtems_rfs_buffer_link (handle));
       fs->buffers_count--;
 
       if (rtems_rfs_fs_no_local_cache (fs))
@@ -247,14 +248,15 @@ rtems_rfs_buffer_handle_release (rtems_rfs_file_system*   fs,
 
           if (fs->release_count > fs->release_modified_count)
           {
-            buffer = (rtems_rfs_buffer*) rtems_chain_get (&fs->release);
+            buffer = (rtems_rfs_buffer*)
+              rtems_chain_get_unprotected (&fs->release);
             fs->release_count--;
             modified = false;
           }
           else
           {
-            buffer =
-              (rtems_rfs_buffer*) rtems_chain_get (&fs->release_modified);
+            buffer = (rtems_rfs_buffer*)
+              rtems_chain_get_unprotected (&fs->release_modified);
             fs->release_modified_count--;
             modified = true;
           }
@@ -264,13 +266,14 @@ rtems_rfs_buffer_handle_release (rtems_rfs_file_system*   fs,
 
         if (rtems_rfs_buffer_dirty (handle))
         {
-          rtems_chain_append (&fs->release_modified,
-                              rtems_rfs_buffer_link (handle));
+          rtems_chain_append_unprotected (&fs->release_modified,
+                                          rtems_rfs_buffer_link (handle));
           fs->release_modified_count++;
         }
         else
         {
-          rtems_chain_append (&fs->release, rtems_rfs_buffer_link (handle));
+          rtems_chain_append_unprotected (&fs->release,
+                                          rtems_rfs_buffer_link (handle));
           fs->release_count++;
         }
       }
@@ -447,7 +450,7 @@ rtems_rfs_release_chain (rtems_chain_control* chain,
 
   while (!rtems_chain_is_empty (chain))
   {
-    buffer = (rtems_rfs_buffer*) rtems_chain_get (chain);
+    buffer = (rtems_rfs_buffer*) rtems_chain_get_unprotected (chain);
     (*count)--;
 
     buffer->user = (void*) 0;
diff --git a/cpukit/libfs/src/rfs/rtems-rfs-file.c b/cpukit/libfs/src/rfs/rtems-rfs-file.c
index a3be4ab..eb5f329 100644
--- a/cpukit/libfs/src/rfs/rtems-rfs-file.c
+++ b/cpukit/libfs/src/rfs/rtems-rfs-file.c
@@ -123,7 +123,7 @@ rtems_rfs_file_open (rtems_rfs_file_system*  fs,
     shared->ctime = rtems_rfs_inode_get_ctime (&shared->inode);
     shared->fs = fs;
 
-    rtems_chain_append (&fs->file_shares, &shared->link);
+    rtems_chain_append_unprotected (&fs->file_shares, &shared->link);
 
     rtems_rfs_inode_unload (fs, &shared->inode, false);
 
@@ -197,7 +197,7 @@ rtems_rfs_file_close (rtems_rfs_file_system* fs,
         rrc = rc;
     }
 
-    rtems_chain_extract (&handle->shared->link);
+    rtems_chain_extract_unprotected (&handle->shared->link);
     free (handle->shared);
   }
 
-- 
1.7.7