[Crash-utility] [PATCH 6/8] Add uncompression processing
Signed-off-by: HATAYAMA Daisuke <d.hatayama(a)jp.fujitsu.com>
---
makedumpfile.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/makedumpfile.c b/makedumpfile.c
index 1525b30..e42b07d 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -279,6 +279,22 @@ readpmem_kdump_compressed(unsigned long long paddr, void *bufptr,
size_t size)
}
memcpy(bufptr, buf2 + page_offset, size);
#endif
+#ifdef USESNAPPY
+ } else if ((pd.flags & DUMP_DH_COMPRESSED_SNAPPY)) {
+
+ ret = snappy_uncompressed_length(buf, pd.size, &retlen);
+ if (ret != SNAPPY_OK) {
+ ERRMSG("Uncompress failed: %d\n", ret);
+ goto error;
+ }
+
+ ret = snappy_uncompress(buf, pd.size, buf2, &retlen);
+ if ((ret != SNAPPY_OK) || (retlen != info->page_size)) {
+ ERRMSG("Uncompress failed: %d\n", ret);
+ goto error;
+ }
+ memcpy(bufptr, buf2 + page_offset, size);
+#endif
} else
memcpy(bufptr, buf + page_offset, size);