[Devel] [PATCH rh7 2/2] ms/fuse: reduce allocation size for splice_write

Andrey Ryabinin aryabinin at virtuozzo.com
Fri Jul 27 14:28:43 MSK 2018


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 at virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi at redhat.com>
Signed-off-by: Andrey Ryabinin <aryabinin at virtuozzo.com>
---
 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 d1680b61b2a0..d37765bee602 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -2038,7 +2038,7 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
 
 	pipe_lock(pipe);
 
-	bufs = kvmalloc(pipe->buffers * sizeof(struct pipe_buffer), GFP_KERNEL);
+	bufs = kvmalloc(pipe->nrbufs * sizeof(struct pipe_buffer), GFP_KERNEL);
 	if (!bufs) {
 		pipe_unlock(pipe);
 		return -ENOMEM;
-- 
2.16.4



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