UBUNTU: SAUCE: add tracing for user initiated readahead requests

[linux-flexiantxendom0-natty.git] / include / linux / page-flags.h

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 0db8037..94b3f07 100644 (file)
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -107,6 +107,7 @@ enum pageflags {
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
        PG_compound_lock,
 #endif
+       PG_readaheadunused,     /* user oriented readahead as yet unused*/
        __NR_PAGEFLAGS,
 
        /* Filesystems */
@@ -235,6 +236,8 @@ PAGEFLAG(MappedToDisk, mappedtodisk)
 PAGEFLAG(Reclaim, reclaim) TESTCLEARFLAG(Reclaim, reclaim)
 PAGEFLAG(Readahead, reclaim)           /* Reminder to do async read-ahead */
 
+PAGEFLAG(ReadaheadUnused, readaheadunused)
+
 #ifdef CONFIG_HIGHMEM
 /*
  * Must use a macro here due to header dependency issues. page_zone() is not