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authorAlexey Dobriyan <adobriyan@gmail.com>2007-07-17 04:03:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:03 -0700
commitf284ce7269031947326bac6bb19a977705276222 (patch)
tree8b145d42d4da182fb185dacc53b24ca7a2546114 /kernel/ptrace.c
parent7664732315c97f48dba9d1e7339ad16fc5a320ac (diff)
PTRACE_POKEDATA consolidation
Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata() function. AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless return EPERM. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/ptrace.c')
-rw-r--r--kernel/ptrace.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 1653d35419a..4a1745f1dad 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -501,3 +501,11 @@ int generic_ptrace_peekdata(struct task_struct *tsk, long addr, long data)
return -EIO;
return put_user(tmp, (unsigned long __user *)data);
}
+
+int generic_ptrace_pokedata(struct task_struct *tsk, long addr, long data)
+{
+ int copied;
+
+ copied = access_process_vm(tsk, addr, &data, sizeof(data), 1);
+ return (copied == sizeof(data)) ? 0 : -EIO;
+}