Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex | KernelTrap

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex

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From: David Howells

Subject: Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex

Date: Wednesday, September 24, 2008 - 12:59 pm

Hugh Dickins <hugh@veritas.com> wrote:

quoted text> If we're hell-bent on #ifdefs throughout mm/shmem.c, I wouldn't
> mind scattering some CONFIG_SWAPs in there too, would cut out
> lots of overhead when swap unconfigured.  But again, how ugly?

That might be necessary: NOMMU doesn't support swap.

David
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Messages in current thread:

[patch] x86: some lock annotations for user copy paths, Nick Piggin, (Wed Sep 10, 4:37 am)

Re: [patch] x86: some lock annotations for user copy paths, Peter Zijlstra, (Wed Sep 10, 4:41 am)

Re: [patch] x86: some lock annotations for user copy paths, Ingo Molnar, (Wed Sep 10, 4:47 am)

Re: [patch] x86: some lock annotations for user copy paths, Ingo Molnar, (Wed Sep 10, 4:50 am)

Re: [patch] x86: some lock annotations for user copy paths, Ingo Molnar, (Wed Sep 10, 5:12 am)

Re: [patch] x86: some lock annotations for user copy paths, Ingo Molnar, (Wed Sep 10, 5:32 am)

Re: [patch] x86: some lock annotations for user copy paths, Nick Piggin, (Wed Sep 10, 7:30 am)

Re: [patch] x86: some lock annotations for user copy paths, Andi Kleen, (Wed Sep 10, 7:31 am)

Re: [patch] x86: some lock annotations for user copy paths, Nick Piggin, (Wed Sep 10, 7:48 am)

Re: [patch] x86: some lock annotations for user copy paths, Peter Zijlstra, (Wed Sep 10, 8:01 am)

Re: [patch] x86: some lock annotations for user copy paths, Nick Piggin, (Wed Sep 10, 8:12 am)

Re: [patch] x86: some lock annotations for user copy paths, Nick Piggin, (Wed Sep 10, 8:17 am)

Re: [patch] x86: some lock annotations for user copy paths, Nick Piggin, (Wed Sep 10, 8:26 am)

Re: [patch] x86: some lock annotations for user copy paths, Ingo Molnar, (Thu Sep 11, 1:27 am)

Re: [patch] x86: some lock annotations for user copy paths, Nick Piggin, (Thu Sep 11, 3:43 am)

[PATCH] sysfs: fix deadlock, Ingo Molnar, (Fri Sep 12, 2:24 am)

[lockdep] possible circular locking, between &mm->mmap_sem ..., Ingo Molnar, (Sun Sep 14, 12:39 am)

Re: [lockdep] possible circular locking, between &mm->mmap ..., Andrew Morton, (Sun Sep 14, 12:44 am)

[patch] mm: fix locking, inotify_read's ev_mutex vs do_pag ..., Ingo Molnar, (Sun Sep 14, 1:06 am)

Re: [lockdep] possible circular locking, between &mm->mmap ..., Nick Piggin, (Sun Sep 14, 2:36 pm)

Re: [PATCH] sysfs: fix deadlock, Nick Piggin, (Sun Sep 14, 3:02 pm)

[patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Nick Piggin, (Sun Sep 14, 3:12 pm)

Re: [PATCH] sysfs: fix deadlock, Peter Zijlstra, (Mon Sep 15, 2:15 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Andrew Morton, (Wed Sep 17, 1:14 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Matt Mackall, (Wed Sep 17, 1:46 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Ingo Molnar, (Thu Sep 18, 4:12 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Jeremy Fitzhardinge, (Thu Sep 18, 12:29 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Matt Mackall, (Thu Sep 18, 2:11 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Ingo Molnar, (Fri Sep 19, 1:40 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Dave Hansen, (Fri Sep 19, 7:18 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Hugh Dickins, (Sat Sep 20, 9:12 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, David Howells, (Mon Sep 22, 7:54 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Dave Hansen, (Mon Sep 22, 8:14 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Nick Piggin, (Mon Sep 22, 10:32 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, David Howells, (Wed Sep 24, 11:18 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Matt Mackall, (Wed Sep 24, 11:29 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, David Howells, (Wed Sep 24, 11:56 am)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Matt Mackall, (Wed Sep 24, 12:11 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, David Howells, (Wed Sep 24, 12:26 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Hugh Dickins, (Wed Sep 24, 12:29 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Hugh Dickins, (Wed Sep 24, 12:41 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Andrew Morton, (Wed Sep 24, 12:47 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, David Howells, (Wed Sep 24, 12:59 pm)

Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex, Hugh Dickins, (Wed Sep 24, 4:43 pm)

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