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authorIngo Molnar <mingo@elte.hu>2009-05-11 09:33:06 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-11 09:33:15 +0200
commit134cbf35c739bf89c51fd975a33a6b87507482c4 (patch)
treec30536dcbb6e99a0f204879bbe5a19bfb27cccf8 /fs/proc/base.c
parent2feceeff1e771850e49f9074307f071964fd9e3e (diff)
parent091bf7624d1c90cec9e578a18529f615213ff847 (diff)
Merge commit 'v2.6.30-rc5' into x86/mm
Merge reason: this branch was on a .30-rc2 base - sync it up with all the latest fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r--fs/proc/base.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index aa763ab0077..fb45615943c 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -322,7 +322,10 @@ static int proc_pid_wchan(struct task_struct *task, char *buffer)
wchan = get_wchan(task);
if (lookup_symbol_name(wchan, symname) < 0)
- return sprintf(buffer, "%lu", wchan);
+ if (!ptrace_may_access(task, PTRACE_MODE_READ))
+ return 0;
+ else
+ return sprintf(buffer, "%lu", wchan);
else
return sprintf(buffer, "%s", symname);
}