fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version
Update fs/pstore and fs/squashfs to use the updated functions from the
new LZ4 module.
Link: http://lkml.kernel.org/r/1486321748-19085-5-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 729677e..efab7b6 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -342,31 +342,35 @@
{
int ret;
- ret = lz4_compress(in, inlen, out, &outlen, workspace);
- if (ret) {
- pr_err("lz4_compress error, ret = %d!\n", ret);
+ ret = LZ4_compress_default(in, out, inlen, outlen, workspace);
+ if (!ret) {
+ pr_err("LZ4_compress_default error; compression failed!\n");
return -EIO;
}
- return outlen;
+ return ret;
}
static int decompress_lz4(void *in, void *out, size_t inlen, size_t outlen)
{
int ret;
- ret = lz4_decompress_unknownoutputsize(in, inlen, out, &outlen);
- if (ret) {
- pr_err("lz4_decompress error, ret = %d!\n", ret);
+ ret = LZ4_decompress_safe(in, out, inlen, outlen);
+ if (ret < 0) {
+ /*
+ * LZ4_decompress_safe will return an error code
+ * (< 0) if decompression failed
+ */
+ pr_err("LZ4_decompress_safe error, ret = %d!\n", ret);
return -EIO;
}
- return outlen;
+ return ret;
}
static void allocate_lz4(void)
{
- big_oops_buf_sz = lz4_compressbound(psinfo->bufsize);
+ big_oops_buf_sz = LZ4_compressBound(psinfo->bufsize);
big_oops_buf = kmalloc(big_oops_buf_sz, GFP_KERNEL);
if (big_oops_buf) {
workspace = kmalloc(LZ4_MEM_COMPRESS, GFP_KERNEL);