The patch titled
Subject: vhost: vringh: use krealloc_array()
has been added to the -mm tree. Its filename is
vhost-vringh-use-krealloc_array.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/vhost-vringh-use-krealloc_array.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/vhost-vringh-use-krealloc_array.patch
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------------------------------------------------------
From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Subject: vhost: vringh: use krealloc_array()
Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.
Link: https://lkml.kernel.org/r/20201109110654.12547-5-brgl@xxxxxxxx
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Christian Knig <christian.koenig@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Gustavo Padovan <gustavo@xxxxxxxxxxx>
Cc: James Morse <james.morse@xxxxxxx>
Cc: Jaroslav Kysela <perex@xxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Robert Richter <rric@xxxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/vhost/vringh.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/vhost/vringh.c~vhost-vringh-use-krealloc_array
+++ a/drivers/vhost/vringh.c
@@ -198,7 +198,8 @@ static int resize_iovec(struct vringh_ki
flag = (iov->max_num & VRINGH_IOV_ALLOCATED);
if (flag)
- new = krealloc(iov->iov, new_num * sizeof(struct iovec), gfp);
+ new = krealloc_array(iov->iov, new_num,
+ sizeof(struct iovec), gfp);
else {
new = kmalloc_array(new_num, sizeof(struct iovec), gfp);
if (new) {
_
Patches currently in -mm which might be from bgolaszewski@xxxxxxxxxxxx are
mm-slab-clarify-kreallocs-behavior-with-__gfp_zero.patch
mm-slab-provide-krealloc_array.patch
alsa-pcm-use-krealloc_array.patch
vhost-vringh-use-krealloc_array.patch
pinctrl-use-krealloc_array.patch
edac-ghes-use-krealloc_array.patch
drm-atomic-use-krealloc_array.patch
hwtracing-intel-use-krealloc_array.patch
dma-buf-use-krealloc_array.patch
