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| author | Hugh Dickins <hugh.dickins@tiscali.co.uk> | 2009-09-21 17:03:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-22 07:17:40 -0700 |
| commit | 1c3aff1ceec2cc86810e2690e67873ff0c505862 (patch) | |
| tree | bf2f1badfd3f8859299f00c8a95c0a11e5cfa778 /mm/nommu.c | |
| parent | 408e82b78bcc9f1b47c76e833c3df97f675947de (diff) | |
| download | lwn-1c3aff1ceec2cc86810e2690e67873ff0c505862.tar.gz lwn-1c3aff1ceec2cc86810e2690e67873ff0c505862.zip | |
mm: remove unused GUP flags
GUP_FLAGS_IGNORE_VMA_PERMISSIONS and GUP_FLAGS_IGNORE_SIGKILL were
flags added solely to prevent __get_user_pages() from doing some of
what it usually does, in the munlock case: we can now remove them.
Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/nommu.c')
| -rw-r--r-- | mm/nommu.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 3b90086e85a2..386443e9d2c6 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -176,7 +176,6 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, int i; int write = !!(flags & GUP_FLAGS_WRITE); int force = !!(flags & GUP_FLAGS_FORCE); - int ignore = !!(flags & GUP_FLAGS_IGNORE_VMA_PERMISSIONS); /* calculate required read or write permissions. * - if 'force' is set, we only require the "MAY" flags. @@ -190,8 +189,8 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, goto finish_or_fault; /* protect what we can, including chardevs */ - if (vma->vm_flags & (VM_IO | VM_PFNMAP) || - (!ignore && !(vm_flags & vma->vm_flags))) + if ((vma->vm_flags & (VM_IO | VM_PFNMAP)) || + !(vm_flags & vma->vm_flags)) goto finish_or_fault; if (pages) { @@ -210,7 +209,6 @@ finish_or_fault: return i ? : -EFAULT; } - /* * get a list of pages in an address range belonging to the specified process * and indicate the VMA that covers each page |