linux.git/arch/xtensa/kernel/syscall.c, branch v4.11

sched/headers: Prepare for new header dependencies before moving more code to

2017-03-02T07:42:30+00:00

We are going to split more MM APIs out of , which
will have to be picked up from a couple of .c files.

The APIs that we are going to move are:

  arch_pick_mmap_layout()
  arch_get_unmapped_area()
  arch_get_unmapped_area_topdown()
  mm_update_next_owner()

Include the header in the files that are going to need it.

Acked-by: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

Replace with globally

2016-12-24T19:46:01+00:00

This was entirely automated, using the script by Al:

  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*'
  sed -i -e "s!$PATT!#include !" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro 
Signed-off-by: Linus Torvalds

xtensa: nommu: don't provide arch_get_unmapped_area

2014-10-21T09:28:48+00:00

Nommu unconditionally provides arch_get_unmapped_area that always
returns -ENOMEM.

Signed-off-by: Max Filippov

xtensa: avoid mmap cache aliasing

2013-02-24T03:12:53+00:00

Provide arch_get_unmapped_area function aligning shared memory mapping
addresses to the biggest of the page size or the cache way size. That
guarantees that corresponding virtual addresses of shared mappings are
cached by the same cache sets.

Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: clean up files to make them code-style compliant

2012-12-19T05:10:25+00:00

Remove heading and trailing spaces, trim trailing lines, and wrap lines
that are longer than 80 characters.

Signed-off-by: Chris Zankel

xtensa: allow multi-inclusion for uapi/unistd.h

2012-10-25T21:53:36+00:00

Xtensa implements a method that allows to generate a arbitrary output
for each system call by defining the __SYSCALL(number, function, num_args).
This usually requires to include uapi/unistd.h twice. Instead of removing
the guard agains multiple inclusion entirely, allow to include unistd.h again
only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at
the end of the file.

Signed-off-by: Chris Zankel

UAPI: (Scripted) Disintegrate arch/xtensa/include/asm

2012-10-16T04:48:53+00:00

UAPI: (Scripted) Disintegrate arch/xtensa/include/asm

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Michael Kerrisk 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones 
Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

ipc: add COMPAT_SHMLBA support

2012-07-31T00:25:20+00:00

If the SHMLBA definition for a native task differs from the definition for
a compat task, the do_shmat() function would need to handle both.

This patch introduces COMPAT_SHMLBA, which is used by the compat shmat
syscall when calling the ipc code and allows architectures such as AArch64
(where the native SHMLBA is 64k but the compat (AArch32) definition is
16k) to provide the correct semantics for compat IPC system calls.

Cc: David S. Miller 
Cc: Chris Zankel 
Cc: Arnd Bergmann 
Acked-by: Catalin Marinas 
Signed-off-by: Will Deacon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sanitize do_pipe_flags() callers in arch

2009-12-16T17:16:40+00:00

* hpux_pipe() - no need to take BKL
* sys32_pipe() in arch/x86/ia32 and xtensa_pipe() in arch/xtensa -
	no need at all, since both functions are open-coded sys_pipe()

Signed-off-by: Al Viro

Unify sys_mmap*

2009-12-11T11:44:29+00:00

New helper - sys_mmap_pgoff(); switch syscalls to using it.

Acked-by: David S. Miller 
Signed-off-by: Al Viro