[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1424901517-25069-1-git-send-email-dave@stgolabs.net>
Date: Wed, 25 Feb 2015 13:58:34 -0800
From: Davidlohr Bueso <dave@...olabs.net>
To: akpm@...ux-foundation.org
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org, dave@...olabs.net
Subject: [PATCH -part2 0/3] mm: improve handling of mm->exe_file
This set addresses exe_file use for users that require the mmap_sem
for other things (mostly looking up the related vma->vm_file). In
a lot of cases we end up with scenarios where we take the mmap_sem in
get_mm_exe_file(), just to then take it again soon after. This is only
temporary as we will remove the need for mmap_sem when dealing with
exe_file.
Applies on top of linux-next (-20150225). The arch bits are entirely
100% untested, so I apologize if there are any stupid build issues.
Thanks!
Davidlohr Bueso (3):
tile/elf: reorganize notify_exec()
oprofile: reduce mmap_sem hold for mm->exe_file
powerpc/oprofile: reduce mmap_sem hold for exe_file
arch/powerpc/oprofile/cell/spu_task_sync.c | 13 +++++----
arch/tile/mm/elf.c | 47 ++++++++++++++++++------------
drivers/oprofile/buffer_sync.c | 30 ++++++++++---------
3 files changed, 53 insertions(+), 37 deletions(-)
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists