Commit 0e9fb6f1 authored Aug 19, 2019 by Vasily Averin Committed by Miklos Szeredi Apr 20, 2020

fuse: BUG_ON correction in fuse_dev_splice_write()



commit 96354535 ("fuse: reduce allocation size for splice_write")
changed size of bufs array, so BUG_ON which checks the index of the array
shold also be fixed.

[SzM: turn BUG_ON into WARN_ON]

Fixes: 96354535 ("fuse: reduce allocation size for splice_write")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

parent a5d8422c

fs/fuse/dev.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -1977,8 +1977,9 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
		struct pipe_buffer *ibuf;
		struct pipe_buffer *obuf;

		BUG_ON(nbuf >= pipe->ring_size);
		BUG_ON(tail == head);
		if (WARN_ON(nbuf >= count \|\| tail == head))
		goto out_free;

		ibuf = &pipe->bufs[tail & mask];
		obuf = &bufs[nbuf];

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