From: Dmitry V. Levin <ldv@altlinux.org>
Date: Tue, 19 Sep 2017 11:32:05 +0000 (+0000)
Subject: loop: decode LOOP_SET_BLOCK_SIZE
X-Git-Tag: v4.20~58
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5b9de7b081d946d2dce9b92328dd3ff991ddec1d;p=strace

loop: decode LOOP_SET_BLOCK_SIZE

* loop.c (loop_ioctl) <LOOP_SET_BLOCK_SIZE>: Handle LOOP_SET_BLOCK_SIZE.
* tests/ioctl_loop.c (main): Check it.
---

diff --git a/loop.c b/loop.c
index 4811dc00..33bd0385 100644
--- a/loop.c
+++ b/loop.c
@@ -189,6 +189,7 @@ MPERS_PRINTER_DECL(int, loop_ioctl,
 		break;
 
 	case LOOP_SET_DIRECT_IO:
+	case LOOP_SET_BLOCK_SIZE:
 		tprintf(", %" PRI_klu, arg);
 		break;
 
diff --git a/tests/ioctl_loop.c b/tests/ioctl_loop.c
index 032b3909..56ebd9e4 100644
--- a/tests/ioctl_loop.c
+++ b/tests/ioctl_loop.c
@@ -303,6 +303,11 @@ main(void)
 	printf("ioctl(-1, LOOP_SET_DIRECT_IO, %lu) = -1 EBADF (%m)\n",
 	       (unsigned long) magic);
 
+	/* LOOP_SET_BLOCK_SIZE */
+	ioctl(-1, LOOP_SET_BLOCK_SIZE, magic);
+	printf("ioctl(-1, LOOP_SET_BLOCK_SIZE, %lu) = -1 EBADF (%m)\n",
+	       (unsigned long) magic);
+
 	/* LOOP_CTL_ADD */
 	ioctl(-1, LOOP_CTL_ADD, magic);
 	printf("ioctl(-1, LOOP_CTL_ADD, %d) = -1 EBADF (%m)\n",