[PATCH 1/2] commands: memcpy: Make use of write_full()

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Change memcpy to rely on write_full() instead of re-implementing it
locally.

Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
 commands/memcpy.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/commands/memcpy.c b/commands/memcpy.c
index ddaf767ea..803f06e57 100644
--- a/commands/memcpy.c
+++ b/commands/memcpy.c
@@ -84,7 +84,7 @@ static int do_memcpy(int argc, char *argv[])
 	buf = xmalloc(RW_BUF_SIZE);
 
 	while (count > 0) {
-		int now, r, w, tmp;
+		int now, r;
 
 		now = min((loff_t)RW_BUF_SIZE, count);
 
@@ -97,19 +97,9 @@ static int do_memcpy(int argc, char *argv[])
 		if (!r)
 			break;
 
-		tmp = 0;
-		now = r;
-		while (now) {
-			w = write(destfd, buf + tmp, now);
-			if (w < 0) {
-				perror("write");
-				goto out;
-			}
-	                if (!w)
-			        break;
-
-			now -= w;
-			tmp += w;
+		if (write_full(destfd, buf, r) < 0) {
+			perror("write");
+			goto out;
 		}
 
 		count -= r;
-- 
2.20.1


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