| commit | cc3327e7dfc16a9a3e164075234c869867a59e45 | |
| author | Hugh Dickins <hugh@veritas.com> | |
| Wed, 23 Nov 2005 21:37:38 +0000 (23 13:37 -0800) | ||
| committer | Linus Torvalds <torvalds@g5.osdl.org> | |
| Thu, 24 Nov 2005 00:08:38 +0000 (23 16:08 -0800) | ||
| tree | d120c13540a7fa4769c0bf53eb12628a76366631 | treesnapshot (tar.gz zip) |
| parent | 7b6ac9dffe6f4dd8776908b234ac1410ed15f112 | commitdiff |
[PATCH] mm: unbloat get_futex_key
The follow_page changes in get_futex_key have left it with two almost
identical blocks, when handling the rare case of a futex in a nonlinear vma.
get_user_pages will itself do that follow_page, and its additional
find_extend_vma is hardly any overhead since the vma is already cached. Let's
just delete the follow_page block and let get_user_pages do it.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The follow_page changes in get_futex_key have left it with two almost
identical blocks, when handling the rare case of a futex in a nonlinear vma.
get_user_pages will itself do that follow_page, and its additional
find_extend_vma is hardly any overhead since the vma is already cached. Let's
just delete the follow_page block and let get_user_pages do it.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| kernel/futex.c | diffblobblamehistory |