From 3e09b5b2293f21e6e28929b6bbb73833678bfdd1 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Mon, 7 Nov 2022 17:30:21 +0100 Subject: btrfs: constify input buffer parameter in compression code The input buffers passed down to compression must never be changed, switch type to u8 as it's a raw byte buffer and use const. Reviewed-by: Anand Jain Signed-off-by: David Sterba --- fs/btrfs/compression.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/compression.c') diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 42e6dde2ad59..30adf430241e 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -119,7 +119,7 @@ static int compression_decompress_bio(struct list_head *ws, } static int compression_decompress(int type, struct list_head *ws, - unsigned char *data_in, struct page *dest_page, + const u8 *data_in, struct page *dest_page, unsigned long start_byte, size_t srclen, size_t destlen) { switch (type) { @@ -1232,7 +1232,7 @@ static int btrfs_decompress_bio(struct compressed_bio *cb) * single page, and we want to read a single page out of it. * start_byte tells us the offset into the compressed data we're interested in */ -int btrfs_decompress(int type, unsigned char *data_in, struct page *dest_page, +int btrfs_decompress(int type, const u8 *data_in, struct page *dest_page, unsigned long start_byte, size_t srclen, size_t destlen) { struct list_head *workspace; -- cgit v1.2.3