[Sheepdog] [PATCH] sheep: use valloc for data object I/O

[MORITA Kazutaka]

Data objects may be opened with O_DIRECT, so we must allocate aligned
memory here.

Signed-off-by: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
---
 sheep/simple_store.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/sheep/simple_store.c b/sheep/simple_store.c
index 92e5504..424589f 100644
--- a/sheep/simple_store.c
+++ b/sheep/simple_store.c
@@ -45,7 +45,12 @@ static int store_write_last_sector(uint64_t oid, struct siocb *iocb)
 	char *buf = NULL;
 	int ret;
 
-	buf = xzalloc(size);
+	buf = valloc(size);
+	if (!buf) {
+		eprintf("failed to allocate memory\n");
+		return SD_RES_NO_MEM;
+	}
+
 	iocb->buf = buf;
 	iocb->length = size;
 	iocb->offset = SD_DATA_OBJ_SIZE - size;
-- 
1.7.2.5