linux-toradex.git/include/asm-s390, branch v2.6.16.46 Linux kernel for Apalis and Colibri modules [PATCH] s390: fix compile with VIRT_CPU_ACCOUNTING=n 2006-03-07T02:40:44+00:00 Jan Blunck jblunck@suse.de 2006-03-06T23:42:46+00:00 5c8338904653365bfb92385b38915becb903d8bb When CONFIG_VIRT_CPU_ACCOUNTING is not defined compiling fails with an undefined reference to account_vtime(). Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
When CONFIG_VIRT_CPU_ACCOUNTING is not defined compiling fails with an
undefined reference to account_vtime().

Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: revert dasd eer module 2006-02-21T04:00:12+00:00 Heiko Carstens heiko.carstens@de.ibm.com 2006-02-21T02:28:14+00:00 49d9c81a699b57a5b6488f3a761669d05e116588 Revert dasd eer module until we have a common understanding of how the interface should be. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Revert dasd eer module until we have a common understanding of how the
interface should be.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: additional_cpus parameter 2006-02-17T21:59:26+00:00 Heiko Carstens heiko.carstens@de.ibm.com 2006-02-17T21:52:46+00:00 255acee706b333b79f593dd366f16e1f107cccc3 Introduce additional_cpus command line option. By default no additional cpu can be attached to the system anymore. Only the cpus present at IPL time can be switched on/off. If it is desired that additional cpus can be attached to the system the maximum number of additional cpus needs to be specified with this option. This change is necessary in order to limit the waste of per_cpu data structures. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Introduce additional_cpus command line option.  By default no additional cpu
can be attached to the system anymore.  Only the cpus present at IPL time can
be switched on/off.  If it is desired that additional cpus can be attached to
the system the maximum number of additional cpus needs to be specified with
this option.

This change is necessary in order to limit the waste of per_cpu data
structures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] add asm-generic/mman.h 2006-02-15T23:32:22+00:00 Michael S. Tsirkin mst@mellanox.co.il 2006-02-15T23:17:39+00:00 5f6164f3092832e0d9b12eed52e09a76bf39c64a Make new MADV_REMOVE, MADV_DONTFORK, MADV_DOFORK consistent across all arches. The idea is to make it possible to use them portably even before distros include them in libc headers. Move common flags to asm-generic/mman.h Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Make new MADV_REMOVE, MADV_DONTFORK, MADV_DOFORK consistent across all
arches.  The idea is to make it possible to use them portably even before
distros include them in libc headers.

Move common flags to asm-generic/mman.h

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] madvise MADV_DONTFORK/MADV_DOFORK 2006-02-15T00:09:34+00:00 Michael S. Tsirkin mst@mellanox.co.il 2006-02-14T21:53:08+00:00 f822566165dd46ff5de9bf895cfa6c51f53bb0c4 Currently, copy-on-write may change the physical address of a page even if the user requested that the page is pinned in memory (either by mlock or by get_user_pages). This happens if the process forks meanwhile, and the parent writes to that page. As a result, the page is orphaned: in case of get_user_pages, the application will never see any data hardware DMA's into this page after the COW. In case of mlock'd memory, the parent is not getting the realtime/security benefits of mlock. In particular, this affects the Infiniband modules which do DMA from and into user pages all the time. This patch adds madvise options to control whether memory range is inherited across fork. Useful e.g. for when hardware is doing DMA from/into these pages. Could also be useful to an application wanting to speed up its forks by cutting large areas out of consideration. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Acked-by: Hugh Dickins <hugh@veritas.com> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Currently, copy-on-write may change the physical address of a page even if the
user requested that the page is pinned in memory (either by mlock or by
get_user_pages).  This happens if the process forks meanwhile, and the parent
writes to that page.  As a result, the page is orphaned: in case of
get_user_pages, the application will never see any data hardware DMA's into
this page after the COW.  In case of mlock'd memory, the parent is not getting
the realtime/security benefits of mlock.

In particular, this affects the Infiniband modules which do DMA from and into
user pages all the time.

This patch adds madvise options to control whether memory range is inherited
across fork.  Useful e.g.  for when hardware is doing DMA from/into these
pages.  Could also be useful to an application wanting to speed up its forks
by cutting large areas out of consideration.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Acked-by: Hugh Dickins <hugh@veritas.com>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: fstatat64 support 2006-02-12T18:11:58+00:00 Heiko Carstens heiko.carstens@de.ibm.com 2006-02-12T11:35:03+00:00 19bf9cbf6b313ae79a0c7278ccaa9c72c86931bd Add fstatat64 support to s390 in order to follow changes with commit cff2b760096d1e6feaa31948e7af4abbefe47822 . Also fixes compilation for 31 bit. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Add fstatat64 support to s390 in order to follow changes with
commit cff2b760096d1e6feaa31948e7af4abbefe47822 .
Also fixes compilation for 31 bit.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: remove one set of brackets in __constant_test_bit() 2006-02-12T05:41:13+00:00 Eric Paris eparis@redhat.com 2006-02-12T01:56:04+00:00 ef1bea9e2a5a72d2c3362522e0a09099406732ff Right now in __constant_test_bit for the s390 there is an extra set of () surrounding the calculation. This patch simply removes one set of () that is surrounding the whole clause. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Right now in __constant_test_bit for the s390 there is an extra set of ()
surrounding the calculation.  This patch simply removes one set of () that is
surrounding the whole clause.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: add #ifdef __KERNEL__ to asm-s390/setup.h 2006-02-12T05:41:13+00:00 Heiko Carstens heiko.carstens@de.ibm.com 2006-02-12T01:56:03+00:00 0defa3c19e7792001df09d6fa5ab461d3599ff6d Based on a patch from Maximilian Attems <maks@sternwelten.at> . Nothing in asm-s390/setup.h is of interest for user space. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Based on a patch from Maximilian Attems <maks@sternwelten.at> .  Nothing in
asm-s390/setup.h is of interest for user space.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: add support for unshare system call 2006-02-12T05:41:13+00:00 Heiko Carstens heiko.carstens@de.ibm.com 2006-02-12T01:56:02+00:00 e7684277f6882a23cfb734cb7450c3a469e6e8b1 Add support for unshare system call. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Add support for unshare system call.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] s390: fix non smp build of kexec 2006-02-12T05:41:12+00:00 Heiko Carstens heiko.carstens@de.ibm.com 2006-02-12T01:56:01+00:00 a386fba2516b5404864647906219ced57bf2f2b7 Add missing smp_cpu_not_running define to avoid build warnings in the non smp case. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
Add missing smp_cpu_not_running define to avoid build warnings in the non smp
case.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>