parted/libparted-make-BLKRRPART-more-robust.patch

50 lines
1.6 KiB
Diff

From: Petr Uzel <petr.uzel@suse.cz>
Subject: libparted: Make BLKRRPART more robust
Patch-mainline: no, upstream does not use BLKRRPART and leaves DASDs broken
---
libparted/arch/linux.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/libparted/arch/linux.c
+++ b/libparted/arch/linux.c
@@ -39,6 +39,7 @@
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/utsname.h> /* for uname() */
+#include <sys/file.h>
#include <scsi/scsi.h>
#include <assert.h>
#ifdef ENABLE_DEVICE_MAPPER
@@ -3102,14 +3103,15 @@ static int
_kernel_reread_part_table (PedDevice* dev)
{
LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
- int retry_count = 9;
+ int retry_count = 5;
sync();
+ flock(arch_specific->fd, LOCK_EX);
while (ioctl (arch_specific->fd, BLKRRPART)) {
retry_count--;
sync();
- if (retry_count == 3)
- sleep(1); /* Pause to allow system to settle */
+
+ sleep(1); /* Pause to allow system to settle */
if (!retry_count) {
ped_exception_throw (
@@ -3119,10 +3121,12 @@ _kernel_reread_part_table (PedDevice* de
"table on %s (%s). As a result, it may not "
"reflect all of your changes until after reboot."),
dev->path, strerror (errno));
+ flock(arch_specific->fd, LOCK_UN);
return 0;
}
}
+ flock(arch_specific->fd, LOCK_UN);
return 1;
}