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fdisk: reinstate a short sleep between sync() and ioctl(BLKRRPART)

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While at it, simplify code a bit.

function                                             old     new   delta
write_table                                          201     198      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2011-07-13 09:06:32 +02:00
parent a669eca3a2
commit 80856b37e8
1 changed files with 18 additions and 25 deletions
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43
util-linux/fdisk.c
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@ -201,7 +201,6 @@ enum action { OPEN_MAIN, TRY_ONLY, CREATE_EMPTY_DOS, CREATE_EMPTY_SUN };
static void update_units(void);
#if ENABLE_FEATURE_FDISK_WRITABLE
static void change_units(void);
static void reread_partition_table(int leave);
static void delete_partition(int i);
static unsigned get_partition(int warn, unsigned max);
static void list_types(const char *const *sys);
@ -2553,7 +2552,6 @@ write_table(void)
ptes[3].changed = 1;
for (i = 3; i < g_partitions; i++) {
struct pte *pe = &ptes[i];
if (pe->changed) {
write_part_table_flag(pe->sectorbuffer);
write_sector(pe->offset_from_dev_start, pe->sectorbuffer);
@ -2565,27 +2563,24 @@ write_table(void)
sgi_write_table();
}
else if (LABEL_IS_SUN) {
int needw = 0;
for (i = 0; i < 8; i++)
if (ptes[i].changed)
needw = 1;
if (needw)
sun_write_table();
for (i = 0; i < 8; i++) {
if (ptes[i].changed) {
sun_write_table();
break;
}
}
}
printf("The partition table has been altered!\n\n");
reread_partition_table(1);
}
printf(
"The partition table has been altered.\n"
"Calling ioctl(BLKRRPART) to re-read partition table.\n"
);
static void
reread_partition_table(int leave)
{
int i;
printf("Calling ioctl() to re-read partition table\n");
sync();
/* sleep(2); Huh? */
/* Users with slow external USB disks on a 320MHz ARM system (year 2011)
* report that sleep is needed, otherwise BLKRRPART may fail with -EIO:
*/
sleep(1);
i = ioctl_or_perror(dev_fd, BLKRRPART, NULL,
"WARNING: rereading partition table "
"failed, kernel still uses old table");
@ -2597,11 +2592,9 @@ reread_partition_table(int leave)
"information\n");
#endif
if (leave) {
if (ENABLE_FEATURE_CLEAN_UP)
close_dev_fd();
exit(i != 0);
}
if (ENABLE_FEATURE_CLEAN_UP)
close_dev_fd();
exit(i != 0);
}
#endif /* FEATURE_FDISK_WRITABLE */
@ -3100,7 +3093,7 @@ int fdisk_main(int argc UNUSED_PARAM, char **argv)
verify();
break;
case 'w':
write_table(); /* does not return */
write_table(); /* does not return */
break;
#if ENABLE_FEATURE_FDISK_ADVANCED
case 'x':