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authorSilesh C V <svellattu@mvista.com>2014-07-23 13:59:59 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-31 12:53:50 -0700
commitd1cc001905146d58c17ac8452eb96f226767819d (patch)
tree7d9876a1dcdd501aaf1934bcf35ba3948816bfb4 /fs/coredump.c
parent6d53522cde3626ce08e280dc979bb0bb08d6d08b (diff)
downloadlinux-linaro-stable-d1cc001905146d58c17ac8452eb96f226767819d.tar.gz
coredump: fix the setting of PF_DUMPCORE
commit aed8adb7688d5744cb484226820163af31d2499a upstream. 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/coredump.c')
-rw-r--r--fs/coredump.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/coredump.c b/fs/coredump.c
index dafafbafa731..1d402ce5b72f 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -299,7 +299,7 @@ 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;
/*