[PATCH 07/11] makedumpfile: Add single thread zstd uncompression processing

[Tao Liu]

Signed-off-by: Tao Liu <ltao at redhat.com>
Signed-off-by: Coiby Xu <coxu at redhat.com>
---
 makedumpfile.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/makedumpfile.c b/makedumpfile.c
index af21a84..e70d882 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -832,7 +832,7 @@ readpage_kdump_compressed(unsigned long long paddr, void *bufptr)
 	 * Read page data
 	 */
 	rdbuf = pd.flags & (DUMP_DH_COMPRESSED_ZLIB | DUMP_DH_COMPRESSED_LZO |
-		DUMP_DH_COMPRESSED_SNAPPY) ? buf : bufptr;
+		DUMP_DH_COMPRESSED_SNAPPY | DUMP_DH_COMPRESSED_ZSTD) ? buf : bufptr;
 	if (read(info->fd_memory, rdbuf, pd.size) != pd.size) {
 		ERRMSG("Can't read %s. %s\n",
 				info->name_memory, strerror(errno));
@@ -873,6 +873,14 @@ readpage_kdump_compressed(unsigned long long paddr, void *bufptr)
 			ERRMSG("Uncompress failed: %d\n", ret);
 			return FALSE;
 		}
+#endif
+#ifdef USEZSTD
+	} else if ((pd.flags & DUMP_DH_COMPRESSED_ZSTD)) {
+		ret = ZSTD_decompress(bufptr, info->page_size, buf, pd.size);
+		if (ZSTD_isError(ret) || (ret != info->page_size)) {
+			ERRMSG("Uncompress failed: %d\n", ret);
+			return FALSE;
+		}
 #endif
 	}
 
-- 
2.29.2