From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
To: kumagai-atsushi@mxc.nes.nec.co.jp
Cc: kexec@lists.infradead.org, crash-utility@redhat.com
Subject: [PATCH 6/8] Add uncompression processing
Date: Tue, 03 Jul 2012 12:07:59 +0900 [thread overview]
Message-ID: <20120703030759.16633.87085.stgit@localhost6.localdomain6> (raw)
In-Reply-To: <20120703030552.16633.42523.stgit@localhost6.localdomain6>
Signed-off-by: HATAYAMA Daisuke <d.hatayama@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);
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next prev parent reply other threads:[~2012-07-03 3:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 3:07 [PATCH 0/8] makedumpfile: Add Snappy Compression Support HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 1/8] Add dump header for snappy HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 2/8] Add command-line processing " HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 3/8] Add snappy build support HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 4/8] Notify snappy unsupporting when disabled HATAYAMA Daisuke
2012-07-03 3:07 ` [PATCH 5/8] Add compression processing HATAYAMA Daisuke
2012-07-03 3:07 ` HATAYAMA Daisuke [this message]
2012-07-03 3:08 ` [PATCH 7/8] Add help message HATAYAMA Daisuke
2012-07-03 3:08 ` [PATCH 8/8] Add manual description HATAYAMA Daisuke
2012-07-05 5:05 ` [PATCH 0/8] makedumpfile: Add Snappy Compression Support Atsushi Kumagai
2012-07-05 5:36 ` HATAYAMA Daisuke
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