linux/arch/s390, branch v2.6.39-rc2

Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

2011-03-26T00:47:04Z

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] cmpxchg: implement cmpxchg64() [S390] xchg/cmpxchg: move to own header file [S390] ccwgroup_driver: remove duplicate members [S390] ccw_bus_type: make it static [S390] ccw_driver: remove duplicate members [S390] qdio: prevent handling of buffers if count is zero [S390] setup: register bss section as resource [S390] setup: simplify setup_resources() [S390] wire up sys_syncfs [S390] wire up sys_clock_adjtime [S390] wire up sys_open_by_handle_at [S390] wire up sys_name_to_handle_at [S390] oprofile: disable hw sampling for CONFIG_32BIT [S390] early: limit savesys cmd string handling [S390] early: Fix possible overlapping data buffer

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-03-24T03:51:42Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: deal with races in /proc/*/{syscall,stack,personality} proc: enable writing to /proc/pid/mem proc: make check_mem_permission() return an mm_struct on success proc: hold cred_guard_mutex in check_mem_permission() proc: disable mem_write after exec mm: implement access_remote_vm mm: factor out main logic of access_process_vm mm: use mm_struct to resolve gate vma's in __get_user_pages mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm mm: arch: make in_gate_area take an mm_struct instead of a task_struct mm: arch: make get_gate_vma take an mm_struct instead of a task_struct x86: mark associated mm when running a task in 32 bit compatibility mode x86: add context tag to mark mm when running a task in 32-bit compatibility mode auxv: require the target to be tracable (or yourself) close race in /proc/*/environ report errors in /proc/*/*map* sanely pagemap: close races with suid execve make sessionid permissions in /proc/*/task/* match those in /proc/* fix leaks in path_lookupat() Fix up trivial conflicts in fs/proc/base.c

remove dma64_addr_t

2011-03-24T02:47:18Z

There is no user now. Signed-off-by: FUJITA Tomonori Cc: David Miller Cc: Ralf Baechle Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

bitops: remove minix bitops from asm/bitops.h

2011-03-24T02:46:22Z

minix bit operations are only used by minix filesystem and useless by other modules. Because byte order of inode and block bitmaps is different on each architecture like below: m68k: big-endian 16bit indexed bitmaps h8300, microblaze, s390, sparc, m68knommu: big-endian 32 or 64bit indexed bitmaps m32r, mips, sh, xtensa: big-endian 32 or 64bit indexed bitmaps for big-endian mode little-endian bitmaps for little-endian mode Others: little-endian bitmaps In order to move minix bit operations from asm/bitops.h to architecture independent code in minix filesystem, this provides two config options. CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k. CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which use native byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu, m32r, mips, sh, xtensa). The architectures which always use little-endian bitmaps do not select these options. Finally, we can remove minix bit operations from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita Acked-by: Arnd Bergmann Acked-by: Greg Ungerer Cc: Geert Uytterhoeven Cc: Roman Zippel Cc: Andreas Schwab Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Michal Simek Cc: "David S. Miller" Cc: Hirokazu Takata Acked-by: Ralf Baechle Acked-by: Paul Mundt Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

bitops: remove ext2 non-atomic bitops from asm/bitops.h

2011-03-24T02:46:21Z

As the result of conversions, there are no users of ext2 non-atomic bit operations except for ext2 filesystem itself. Now we can put them into architecture independent code in ext2 filesystem, and remove from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

s390: introduce little-endian bitops

2011-03-24T02:46:12Z

Introduce little-endian bit operations by renaming native ext2 bit operations. The ext2 bit operations are kept as wrapper macros using little-endian bit operations to maintain bisectability until the conversions are finished. Signed-off-by: Akinobu Mita Cc: Arnd Bergmann Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm

2011-03-23T20:36:55Z

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 Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro

mm: arch: make in_gate_area take an mm_struct instead of a task_struct

2011-03-23T20:36:54Z

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 Wilson Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro

mm: arch: make get_gate_vma take an mm_struct instead of a task_struct

2011-03-23T20:36:54Z

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 Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro

[S390] cmpxchg: implement cmpxchg64()

2011-03-23T09:16:00Z

We have a cmpxchg64_local() implementation but strange enough the SMP capable variant cmpxchg64() is missing. So implement it. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky