Signed-off-by: HATAYAMA Daisuke <d.hatayama at jp.fujitsu.com>
---
defs.h | 3 +++
diskdump.c | 28 ++++++++++++++++++++++++++++
2 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/defs.h b/defs.h
index 8eebc52..f938c8c 100755
--- a/defs.h
+++ b/defs.h
@@ -51,6 +51,9 @@
#ifdef LZO
#include <lzo/lzo1x.h>
#endif
+#ifdef SNAPPY
+#include <snappy-c.h>
+#endif
#ifndef ATTRIBUTE_UNUSED
#define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
diff --git a/diskdump.c b/diskdump.c
index 4d194c5..39f4652 100644
--- a/diskdump.c
+++ b/diskdump.c
@@ -874,6 +874,34 @@ cache_page(physaddr_t paddr)
return READ_ERROR;
}
#endif
+ } else if (pd.flags & DUMP_DH_COMPRESSED_SNAPPY) {
+
+ if (!(dd->flags & SNAPPY_SUPPORTED)) {
+ error(INFO, "%s: uncompress failed: no snappy compression support\n",
+ DISKDUMP_VALID() ? "diskdump" : "compressed kdump");
+ return READ_ERROR;
+ }
+
+#ifdef SNAPPY
+ ret = snappy_uncompressed_length((char *)dd->compressed_page,
+ pd.size, &retlen);
+ if (ret != SNAPPY_OK) {
+ error(INFO, "%s: uncompress failed: %d\n",
+ DISKDUMP_VALID() ? "diskdump" : "compressed kdump",
+ ret);
+ return READ_ERROR;
+ }
+
+ ret = snappy_uncompress((char *)dd->compressed_page, pd.size,
+ (char *)dd->page_cache_hdr[i].pg_bufptr,
+ &retlen);
+ if ((ret != SNAPPY_OK) || (retlen != block_size)) {
+ error(INFO, "%s: uncompress failed: %d\n",
+ DISKDUMP_VALID() ? "diskdump" : "compressed kdump",
+ ret);
+ return READ_ERROR;
+ }
+#endif
} else
memcpy(dd->page_cache_hdr[i].pg_bufptr,
dd->compressed_page, block_size);
--
1.7.7.6
