diff options
| author | Sven Schmidt | 2017-02-24 15:01:22 -0800 |
|---|---|---|
| committer | Linus Torvalds | 2017-02-24 17:46:57 -0800 |
| commit | d21b5ff12df45a65bb220c7e8103a5f0f5609377 (patch) | |
| tree | 965462c0aa0797c11e5411313d0dc48db91e5b79 /fs | |
| parent | 73a15ac6d5413caaee95979e318df58d4ee6d9a3 (diff) | |
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/pstore/platform.c | 22 | ||||
| -rw-r--r-- | fs/squashfs/lz4_wrapper.c | 12 |
2 files changed, 19 insertions, 15 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 729677e18e36..efab7b64925b 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -342,31 +342,35 @@ static int compress_lz4(const void *in, void *out, size_t inlen, size_t outlen) { 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); diff --git a/fs/squashfs/lz4_wrapper.c b/fs/squashfs/lz4_wrapper.c index ff4468bd18b0..95da65366548 100644 --- a/fs/squashfs/lz4_wrapper.c +++ b/fs/squashfs/lz4_wrapper.c @@ -97,7 +97,6 @@ static int lz4_uncompress(struct squashfs_sb_info *msblk, void *strm, struct squashfs_lz4 *stream = strm; void *buff = stream->input, *data; int avail, i, bytes = length, res; - size_t dest_len = output->length; for (i = 0; i < b; i++) { avail = min(bytes, msblk->devblksize - offset); @@ -108,12 +107,13 @@ static int lz4_uncompress(struct squashfs_sb_info *msblk, void *strm, put_bh(bh[i]); } - res = lz4_decompress_unknownoutputsize(stream->input, length, - stream->output, &dest_len); - if (res) + res = LZ4_decompress_safe(stream->input, stream->output, + length, output->length); + + if (res < 0) return -EIO; - bytes = dest_len; + bytes = res; data = squashfs_first_page(output); buff = stream->output; while (data) { @@ -128,7 +128,7 @@ static int lz4_uncompress(struct squashfs_sb_info *msblk, void *strm, } squashfs_finish_page(output); - return dest_len; + return res; } const struct squashfs_decompressor squashfs_lz4_comp_ops = { |