[PATCH 2/2] fs/fuse, splice_write: reduce allocation size.

From: Andrey Ryabinin
Date: Mon Jul 16 2018 - 12:02:57 EST


The 'bufs' array contains 'pipe->buffers' elements, but the
fuse_dev_splice_write() uses only 'pipe->nrbufs' elements.

So reduce the allocation size to 'pipe->nrbufs' elements.

Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
---
fs/fuse/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 74900571546d..39789f070cde 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1944,7 +1944,7 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
if (!fud)
return -EPERM;

- bufs = kvmalloc_array(pipe->buffers, sizeof(struct pipe_buffer),
+ bufs = kvmalloc_array(pipe->nrbufs, sizeof(struct pipe_buffer),
GFP_KERNEL);
if (!bufs)
return -ENOMEM;
--
2.16.4