From: Davidlohr Bueso <dave@gnu.org>
Date: Tue, 21 Jun 2011 03:10:13 +0000 (-0400)
Subject: mkfs.minix: check for misalignment
X-Git-Tag: v2.20-rc1~140
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f1384353e89132b9fc0b2a160fc3351aaa6973e;p=thirdparty%2Futil-linux.git

mkfs.minix: check for misalignment

Produce a warning if the device is misaligned.

[kzak@redhat.com: - use it for block devices only]

Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/disk-utils/mkfs.minix.c b/disk-utils/mkfs.minix.c
index 328e285a97..24b84db780 100644
--- a/disk-utils/mkfs.minix.c
+++ b/disk-utils/mkfs.minix.c
@@ -653,6 +653,7 @@ int main(int argc, char ** argv) {
 		DEV = open(device_name,O_RDWR | O_EXCL);
 	else
 		DEV = open(device_name,O_RDWR);
+
 	if (DEV<0)
 		err(MKFS_ERROR, _("%s: open failed"), device_name);
 	if (S_ISBLK(statbuf.st_mode)) {
@@ -660,6 +661,10 @@ int main(int argc, char ** argv) {
 
 		if (blkdev_get_sector_size(DEV, &sectorsize) == -1)
 			sectorsize = DEFAULT_SECTOR_SIZE;		/* kernel < 2.3.3 */
+
+		if (blkdev_is_misaligned(DEV))
+			warnx(_("%s: device is misaligned"), device_name);
+
 		if (BLOCK_SIZE < sectorsize)
 			errx(MKFS_ERROR, _("block size smaller than physical "
 					"sector size of %s"), device_name);