Changeset 33640 in vbox

Timestamp:

Nov 1, 2010 9:41:21 AM (15 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

67253

Message:

Linux host page allocator: don't use system reserves for >=1M reqs

File:

• trunk/src/VBox/Runtime/r0drv/linux/memobj-r0drv-linux.c (modified) (2 diffs)

trunk/src/VBox/Runtime/r0drv/linux/memobj-r0drv-linux.c

@@ -196 +196 @@
     pMemLnx->cPages = cPages;
 
+# ifdef __GFP_NOMEMALLOC
+     if (cPages > 255)
+        /* Introduced with Linux 2.6.12: Don't use emergency reserves */
+        fFlagsLnx |= __GFP_NOMEMALLOC;
+# endif
+
     /*
      * Allocate the pages.
@@ -204 +210 @@
         ||  cb <= PAGE_SIZE * 2)
     {
-# ifdef __GFP_NOMEMALLOC
-        /* Introduced with Linux 2.6.12: Don't use emergency reserves */
-        fFlagsLnx |= __GFP_NOMEMALLOC;
-# endif
 # ifdef VBOX_USE_INSERT_PAGE
         paPages = alloc_pages(fFlagsLnx |  __GFP_COMP, rtR0MemObjLinuxOrder(cPages));