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-rw-r--r--src/journal/compress.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/journal/compress.c b/src/journal/compress.c
index 49d694ac28..93ac92aaad 100644
--- a/src/journal/compress.c
+++ b/src/journal/compress.c
@@ -49,6 +49,13 @@ DEFINE_STRING_TABLE_LOOKUP(object_compressed, int);
int compress_blob_xz(const void *src, uint64_t src_size, void *dst, uint64_t *dst_size) {
#ifdef HAVE_XZ
+ static const lzma_options_lzma opt = {
+ 1u << 20u, NULL, 0, LZMA_LC_DEFAULT, LZMA_LP_DEFAULT,
+ LZMA_PB_DEFAULT, LZMA_MODE_FAST, 128, LZMA_MF_HC3, 4};
+ static const lzma_filter filters[2] = {
+ {LZMA_FILTER_LZMA2, (lzma_options_lzma*) &opt},
+ {LZMA_VLI_UNKNOWN, NULL}
+ };
lzma_ret ret;
size_t out_pos = 0;
@@ -60,8 +67,11 @@ int compress_blob_xz(const void *src, uint64_t src_size, void *dst, uint64_t *ds
/* Returns < 0 if we couldn't compress the data or the
* compressed result is longer than the original */
- ret = lzma_easy_buffer_encode(LZMA_PRESET_DEFAULT, LZMA_CHECK_NONE, NULL,
- src, src_size, dst, &out_pos, src_size - 1);
+ if (src_size < 80)
+ return -ENOBUFS;
+
+ ret = lzma_stream_buffer_encode((lzma_filter*) filters, LZMA_CHECK_NONE, NULL,
+ src, src_size, dst, &out_pos, src_size - 1);
if (ret != LZMA_OK)
return -ENOBUFS;