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

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Pull generic execve() changes from Al Viro:
 "This introduces the generic kernel_thread() and kernel_execve()
  functions, and switches x86, arm, alpha, um and s390 over to them."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (26 commits)
  s390: convert to generic kernel_execve()
  s390: switch to generic kernel_thread()
  s390: fold kernel_thread_helper() into ret_from_fork()
  s390: fold execve_tail() into start_thread(), convert to generic sys_execve()
  um: switch to generic kernel_thread()
  x86, um/x86: switch to generic sys_execve and kernel_execve
  x86: split ret_from_fork
  alpha: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
  alpha: switch to generic kernel_thread()
  alpha: switch to generic sys_execve()
  arm: get rid of execve wrapper, switch to generic execve() implementation
  arm: optimized current_pt_regs()
  arm: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
  arm: split ret_from_fork, simplify kernel_thread() [based on patch by rmk]
  generic sys_execve()
  generic kernel_execve()
  new helper: current_pt_regs()
  preparation for generic kernel_thread()
  um: kill thread->forking
  um: let signal_delivered() do SIGTRAP on singlestepping into handler
  ...
This commit is contained in:
Linus Torvalds
2012-10-10 12:02:25 +09:00
parent f59b51fe3d f322220d61
commit 42859eea96
96 changed files with 391 additions and 900 deletions
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17
arch/um/kernel/syscall.c
View File

@@ -13,7 +13,6 @@
#include <asm/mman.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include "internal.h"
long sys_fork(void)
{
@@ -50,19 +49,3 @@ long old_mmap(unsigned long addr, unsigned long len,
out:
return err;
}
int kernel_execve(const char *filename,
const char *const argv[],
const char *const envp[])
{
mm_segment_t fs;
int ret;
fs = get_fs();
set_fs(KERNEL_DS);
ret = um_execve(filename, (const char __user *const __user *)argv,
(const char __user *const __user *) envp);
set_fs(fs);
return ret;
}