Commit 14a3357b authored by David Sterba's avatar David Sterba
Browse files

btrfs: constify buffers used by compression helpers 



Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 9ed57367

fs/btrfs/compression.c

+1 −1
Original line number Diff line number Diff line
@@ -1015,7 +1015,7 @@ void btrfs_exit_compress(void) 
 *

 * total_out is the last byte of the buffer

 */

int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,

int btrfs_decompress_buf2page(const char *buf, unsigned long buf_start,

			      unsigned long total_out, u64 disk_start,

			      struct bio *bio)

{

fs/btrfs/compression.h

+1 −1
Original line number Diff line number Diff line
@@ -32,7 +32,7 @@ int btrfs_compress_pages(int type, struct address_space *mapping, 
			 unsigned long max_out);

int btrfs_decompress(int type, unsigned char *data_in, struct page *dest_page,

		     unsigned long start_byte, size_t srclen, size_t destlen);

int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,

int btrfs_decompress_buf2page(const char *buf, unsigned long buf_start,

			      unsigned long total_out, u64 disk_start,

			      struct bio *bio);

fs/btrfs/lzo.c

+1 −1
Original line number Diff line number Diff line
@@ -76,7 +76,7 @@ static inline void write_compress_length(char *buf, size_t len) 
	memcpy(buf, &dlen, LZO_LEN);

}



static inline size_t read_compress_length(char *buf)

static inline size_t read_compress_length(const char *buf)

{

	__le32 dlen;

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