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authorSilesh C V <svellattu@mvista.com>2014-07-23 13:59:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-07-23 15:10:54 -0700
commitaed8adb7688d5744cb484226820163af31d2499a (patch)
tree90ccf665967201bfc6ea7cb3480b89fd8bff0551
parent15ba2236f3556fc01b9ca91394465152b5ea74b6 (diff)
downloadop-kernel-dev-aed8adb7688d5744cb484226820163af31d2499a.zip
op-kernel-dev-aed8adb7688d5744cb484226820163af31d2499a.tar.gz
coredump: fix the setting of PF_DUMPCORE
Commit 079148b919d0 ("coredump: factor out the setting of PF_DUMPCORE") cleaned up the setting of PF_DUMPCORE by removing it from all the linux_binfmt->core_dump() and moving it to zap_threads().But this ended up clearing all the previously set flags. This causes issues during core generation when tsk->flags is checked again (eg. for PF_USED_MATH to dump floating point registers). Fix this. Signed-off-by: Silesh C V <svellattu@mvista.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Mandeep Singh Baines <msb@chromium.org> Cc: <stable@vger.kernel.org> [3.10+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/coredump.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/coredump.c b/fs/coredump.c
index 0b2528f..a93f7e6 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -306,7 +306,7 @@ static int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
if (unlikely(nr < 0))
return nr;
- tsk->flags = PF_DUMPCORE;
+ tsk->flags |= PF_DUMPCORE;
if (atomic_read(&mm->mm_users) == nr + 1)
goto done;
/*
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