Re: [PATCH 0/5] make *_gate_vma accept mm_struct instead of task_struct II

On Thu, Mar 10, 2011 at 08:38:09AM -0800, Andi Kleen wrote: > On Thu, Mar 10, 2011 at 08:00:32AM -0800, Andi Kleen wrote: > > On Tue, Mar 08, 2011 at 07:31:56PM -0500, Stephen Wilson wrote: > > > The only architecture this change impacts in any significant way is >

Re: [PATCH 0/5] make *_gate_vma accept mm_struct instead of task_struct

On Thu, Mar 10, 2011 at 08:00:32AM -0800, Andi Kleen wrote: > On Tue, Mar 08, 2011 at 07:31:56PM -0500, Stephen Wilson wrote: > > > > Morally, the question of whether an address lies in a gate vma should be > > asked > > with respect to an mm, not a particular

Re: [PATCH 0/5] make *_gate_vma accept mm_struct instead of task_struct

On Wed, Mar 09, 2011 at 05:09:09AM -0800, Michel Lespinasse wrote: > On Tue, Mar 8, 2011 at 4:31 PM, Stephen Wilson wrote: > > Morally, the question of whether an address lies in a gate vma should be > > asked > > with respect to an mm, not a particular task. > > &g

[PATCH 5/5] mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm

Now that gate vma's are referenced with respect to a particular mm and not a particular task it only makes sense to propagate the change to this predicate as well. Signed-off-by: Stephen Wilson --- arch/powerpc/kernel/vdso.c |2 +- arch/s390/kernel/vdso.c|2 +-

[PATCH 4/5] mm: arch: make in_gate_area take an mm_struct instead of a task_struct

Morally, the question of whether an address lies in a gate vma should be asked with respect to an mm, not a particular task. Moreover, dropping the dependency on task_struct will help make existing and future operations on mm's more flexible and convenient. Signed-off-by: Stephen W

[PATCH 3/5] mm: arch: make get_gate_vma take an mm_struct instead of a task_struct

Morally, the presence of a gate vma is more an attribute of a particular mm than a particular task. Moreover, dropping the dependency on task_struct will help make both existing and future operations on mm's more flexible and convenient. Signed-off-by: Stephen Wilson --- arch/powerpc/k

[PATCH 1/5] x86: add context tag to mark mm when running a task in 32-bit compatibility mode

This tag is intended to mirror the thread info TIF_IA32 flag. Will be used to identify mm's which support 32 bit tasks running in compatibility mode without requiring a reference to the task itself. Signed-off-by: Stephen Wilson --- arch/x86/include/asm/mmu.h |6 ++ 1 files chang

[PATCH 2/5] x86: mark associated mm when running a task in 32 bit compatibility mode

This patch simply follows the same practice as for setting the TIF_IA32 flag. In particular, an mm is marked as holding 32-bit tasks when a 32-bit binary is exec'ed. Both ELF and a.out formats are updated. Signed-off-by: Stephen Wilson --- arch/x86/ia32/ia32_aout.c|1 + arch/x86/k

[PATCH 0/5] make *_gate_vma accept mm_struct instead of task_struct

c/pid/mem. I will be posting the second series to lkml shortly. These patches are based on v2.6.38-rc8. The general approach used here was suggested to me by Alexander Viro, but any mistakes present in these patches are entirely my own. -- steve Stephen Wilson (5): x86: add context tag to