[parted-devel] [PATCH] Don't fail if unable to reread partition table

[Soren Hansen]

I used to use parted 1.7.7 as this was what was shipped by Ubuntu and
Debian up until very recently. I used parted to add a partition table to
disk images that I'd be using for virtual machines.  
When parted was updated to 1.8.8, this stopped working, since parted
fails if telling the kernel to reread the partition table for the device
in question fails. However, for disk images this makes little sense.

This patch makes libparted consider (ioctl(fd, BLKRRPART) || errno
== EINVAL) succesful.

Signed-off-by: Soren Hansen <soren at canonical.com>

diff -urNad parted-1.8.8.git.2008.03.24~/libparted/arch/linux.c parted-1.8.8.git.2008.03.24/libparted/arch/linux.c
--- parted-1.8.8.git.2008.03.24~/libparted/arch/linux.c 2008-08-05 17:02:18.151661314 +0200
+++ parted-1.8.8.git.2008.03.24/libparted/arch/linux.c  2008-08-05 17:02:47.096662006 +0200
@@ -2454,7 +2467,7 @@
         int             retry_count = 5;
 
         sync();
-        while (ioctl (arch_specific->fd, BLKRRPART)) {
+        while (ioctl (arch_specific->fd, BLKRRPART) || errno == EINVAL) {
                 retry_count--;
                 sync();
                 if (!retry_count) {


-- 
Soren Hansen               | 
Virtualisation specialist  | Ubuntu Server Team
Canonical Ltd.             | http://www.ubuntu.com/
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