On Mon, 2008-08-18 at 19:02 +0100, [EMAIL PROTECTED] wrote: > From: Mel Gorman <[EMAIL PROTECTED]> > > Similar to morecore, it is necessary to prefault regions allocated by > get_huge_pagess() when requested. > > Signed-off-by: Mel Gorman <[EMAIL PROTECTED]>
Acked-by: Adam Litke <[EMAIL PROTECTED]> > --- > alloc.c | 10 ++++++++++ > 1 files changed, 10 insertions(+), 0 deletions(-) > > diff --git a/alloc.c b/alloc.c > index 596c3c1..197c1ce 100644 > --- a/alloc.c > +++ b/alloc.c > @@ -102,6 +102,16 @@ void *get_huge_pages(size_t len, ghp_t flags) > return NULL; > } > > + /* Fault the region to ensure accesses succeed */ > + if (__lh_hugetlbfs_prefault(heap_fd, buf, len) != 0) { > + munmap(buf, len); > + close(heap_fd); > + > + /* Try falling back to base pages if allowed */ > + if (flags & GHP_FALLBACK) > + return fallback_base_pages(len, flags); > + } > + > /* Close the file so we do not have to track the descriptor */ > if (close(heap_fd) != 0) { > WARNING("Failed to close new heap fd: %s\n", strerror(errno)); -- Adam Litke - (agl at us.ibm.com) IBM Linux Technology Center ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Libhugetlbfs-devel mailing list Libhugetlbfs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libhugetlbfs-devel