From 41badc15cbad0350de34408c1b0c690f9df76d4b Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Fri, 22 Feb 2013 16:32:47 -0800 Subject: mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool do_mmap_pgoff() rounds up the desired size to the next PAGE_SIZE multiple, however there was no equivalent code in mm_populate(), which caused issues. This could be fixed by introduced the same rounding in mm_populate(), however I think it's preferable to make do_mmap_pgoff() return populate as a size rather than as a boolean, so we don't have to duplicate the size rounding logic in mm_populate(). Signed-off-by: Michel Lespinasse Acked-by: Rik van Riel Tested-by: Andy Lutomirski Cc: Greg Ungerer Cc: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/util.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'mm/util.c') diff --git a/mm/util.c b/mm/util.c index 13467e043e9e..3704bf1bef94 100644 --- a/mm/util.c +++ b/mm/util.c @@ -355,7 +355,7 @@ unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr, { unsigned long ret; struct mm_struct *mm = current->mm; - bool populate; + unsigned long populate; ret = security_mmap_file(file, prot, flag); if (!ret) { @@ -363,8 +363,8 @@ unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr, ret = do_mmap_pgoff(file, addr, len, prot, flag, pgoff, &populate); up_write(&mm->mmap_sem); - if (!IS_ERR_VALUE(ret) && populate) - mm_populate(ret, len); + if (populate) + mm_populate(ret, populate); } return ret; } -- cgit v1.2.3-59-g8ed1b