Re: [PATCH] dm ioctl: Restore __GFP_HIGH in copy_params()

[Junaid Shahid <junaids@google.com>]

(Correcting linux-mm email addr)

d224e9381897 (drivers/md/dm-ioctl.c: use kvmalloc rather than opencoded
variant) left out the __GFP_HIGH flag when converting from __vmalloc to
kvmalloc. This can cause the IOCTL to fail in some low memory situations
where it wouldn't have failed earlier. This patch adds it back to avoid
any potential regression.

Signed-off-by: Junaid Shahid <junaids@google.com>
---
 drivers/md/dm-ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 0555b4410e05..bacad7637a56 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1715,7 +1715,7 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl *param_kern
 	 */
 	dmi = NULL;
 	noio_flag = memalloc_noio_save();
-	dmi = kvmalloc(param_kernel->data_size, GFP_KERNEL);
+	dmi = kvmalloc(param_kernel->data_size, GFP_KERNEL | __GFP_HIGH);
 	memalloc_noio_restore(noio_flag);
 
 	if (!dmi) {
-- 
2.13.0.303.g4ebf302169-goog

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