linux-toradex.git/arch/s390/include, branch v3.6.1

s390/hugetlb: use direct TLB flushing for hugetlbfs pages

2012-09-06T08:40:37+00:00

huge_ptep_get_and_clear() is either missing a TLB invalidation or
an mm->context.attach_count check. Since the attach_count logic was
introduced with normal ptes in mind, let's just use direct TLB
flushing for hugetlbfs pages.

Signed-off-by: Gerald Schaefer 
Signed-off-by: Martin Schwidefsky

s390/mm: fix deadlock in unmap_hugepage_range()

2012-09-03T09:14:06+00:00

git commit cd2934a3 moved the flush_tlb_range() within
__unmap_hugepage_range() inside the mm->page_table_lock, which
triggered a deadlock in s390 tlb flushing code. __tlb_flush_mm_cond()
also tries to acquire the mm->page_table_lock, but that is not needed
because all callers already have mm->mmap_sem or mm->page_table_lock,
so it can be safely removed to fix the deadlock.

Signed-off-by: Gerald Schaefer 
Signed-off-by: Martin Schwidefsky

s390/32: Don't clobber personality flags on exec

2012-08-30T14:28:07+00:00

In native 32 bit mode the personality flags were not correctly inherited.
This is the s390 version of 59e4c3a2 "powerpc/32: Don't clobber personality
flags on exec".

Reported-by: Mike Frysinger 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/smp: add missing smp_store_status() for !SMP

2012-08-28T08:08:34+00:00

Fix this compile error:

arch/s390/kernel/machine_kexec.c: In function ‘setup_regs’:
arch/s390/kernel/machine_kexec.c:63:3: error: implicit declaration
 of function ‘smp_store_status’ [-Werror=implicit-function-declaration]

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390: Always use "long" for ssize_t to match size_t

2012-08-21T13:23:04+00:00

On s390x-linux-gcc, __SIZE_TYPE__ expands to "long unsigned int" for both
32-bit s390 and 64-bit s390x, as
gcc-4.6.3-nolibc/s390x-linux/lib/gcc/s390x-linux/4.6.3/plugin/include/config/s390/linux.h
has

    #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "long unsigned int")

To match this, __kernel_size_t is always set to "long unsigned int".

But while __kernel_ssize_t is "long" on 64-bit s390x, it is "int" on 32-bit
s390, causing compiler warnings like:

    fs/quota/quota_tree.c:372:4: warning: format '%zd' expects argument of type 'signed size_t', but argument 4 has type 'ssize_t' [-Wformat]

To fix this, __kernel_ssize_t should be "long", irrespective of word size.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/seccomp: add support for system call filtering using BPF

2012-08-08T14:32:56+00:00

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/mm: remove MAX_PHYSADDR_BITS define

2012-08-08T14:32:55+00:00

It's unused, so remove it.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2012-07-31T22:32:05+00:00

Pull s390 updates from Martin Schwidefsky:
 "This it the second batch of s390 patches for the 3.6 merge window.
  Included is enablement for two common code changes, killable page
  faults and sorted exception tables.  And the regular set of cleanup
  and bug fix patches."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: make use of user_mode() macro where possible
  s390/mm: rename user_mode variable to addressing_mode
  s390/mm: fix fault handling for page table walk case
  s390/mm: make page faults killable
  s390: update defconfig
  s390/mm: downgrade page table after fork of a 31 bit process
  s390/ipl: Use diagnose 8 command separation
  s390/linker script: use RO_DATA_SECTION
  s390/exceptions: sort exception table at build time
  s390/debug: remove module_exit function / move EXPORT_SYMBOLs

ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION

2012-07-31T00:25:21+00:00

Rather than #define the options manually in the architecture code, add
Kconfig options for them and select them there instead.  This also allows
us to select the compat IPC version parsing automatically for platforms
using the old compat IPC interface.

Reported-by: Andrew Morton 
Signed-off-by: Will Deacon 
Cc: Arnd Bergmann 
Cc: Chris Metcalf 
Cc: Catalin Marinas 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

s390/mm: rename user_mode variable to addressing_mode

2012-07-30T09:03:11+00:00

Fix name clash with user_mode() define which is also used in common code.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky