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linux-sg2042
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Merge branch 'bkl/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing 

* 'bkl/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing:
  ptrace: Cleanup useless header
  ptrace: kill BKL in ptrace syscall
This commit is contained in:
Linus Torvalds 2010-05-17 13:48:10 -07:00
parent 81880d603d b8bc1389b7
commit 3d2c978e0c
1 changed files with 0 additions and 11 deletions
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11
kernel/ptrace.c
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@ -14,7 +14,6 @@
#include <linux/mm.h> #include <linux/mm.h>
#include <linux/highmem.h> #include <linux/highmem.h>
#include <linux/pagemap.h> #include <linux/pagemap.h>
#include <linux/smp_lock.h>
#include <linux/ptrace.h> #include <linux/ptrace.h>
#include <linux/security.h> #include <linux/security.h>
#include <linux/signal.h> #include <linux/signal.h>
@ -666,10 +665,6 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, long, addr, long, data)
struct task_struct *child; struct task_struct *child;
long ret; long ret;
/*
* This lock_kernel fixes a subtle race with suid exec
*/
lock_kernel();
if (request == PTRACE_TRACEME) { if (request == PTRACE_TRACEME) {
ret = ptrace_traceme(); ret = ptrace_traceme();
if (!ret) if (!ret)
@ -703,7 +698,6 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, long, addr, long, data)
out_put_task_struct: out_put_task_struct:
put_task_struct(child); put_task_struct(child);
out: out:
unlock_kernel();
return ret; return ret;
} }
@ -813,10 +807,6 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
struct task_struct *child; struct task_struct *child;
long ret; long ret;
/*
* This lock_kernel fixes a subtle race with suid exec
*/
lock_kernel();
if (request == PTRACE_TRACEME) { if (request == PTRACE_TRACEME) {
ret = ptrace_traceme(); ret = ptrace_traceme();
goto out; goto out;
@ -846,7 +836,6 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
out_put_task_struct: out_put_task_struct:
put_task_struct(child); put_task_struct(child);
out: out:
unlock_kernel();
return ret; return ret;
} }
#endif /* CONFIG_COMPAT */ #endif /* CONFIG_COMPAT */