[PATCH] mmc: card: don't use PF_MEMALLOC

From: Martin Kepplinger
Date: Wed Mar 16 2016 - 07:45:56 EST

PF_MEMALLOC is assigned to processes by mm. If drivers prevent memory
reclaim and mm is not in control, strange hang-up or OOM Killer invocation
could happen.

Signed-off-by: Martin Kepplinger <martink@xxxxxxxxx>
I use MMC cards with this change perfectly fine. As I understand it,
even *if* PF_MEMALLOC has a real reason to be here, I think it should
be very well documented.

drivers/mmc/card/queue.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 6f4323c..be71249 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -51,8 +51,6 @@ static int mmc_queue_thread(void *d)
struct mmc_queue *mq = d;
struct request_queue *q = mq->queue;

- current->flags |= PF_MEMALLOC;
do {
struct request *req = NULL;