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mkfs: Make HDIO_GETGEO ioctl optional

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Some block devices don't implement HDIO_GETGEP ioctl;
loop device being a notable example.
Without this patch, it's not possible to make a f2fs
on a file mounted over a loop device.

Signed-off-by: Ezequiel Garcia <ezequiel@free-electrons.com>
This commit is contained in:
Ezequiel Garcia 2012-12-11 23:08:35 -03:00 committed by Jaegeuk Kim
parent 807776acbf
commit 07b815d395
1 changed files with 4 additions and 5 deletions
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9
mkfs/f2fs_format.c
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@ -262,11 +262,10 @@ static int8_t f2fs_get_device_info()
return -1;
}
if (ioctl(fd, HDIO_GETGEO, &geom) < 0) {
printf("\n\tError: Cannot get the device geometry\n");
return -1;
}
f2fs_params.start_sector = geom.start;
if (ioctl(fd, HDIO_GETGEO, &geom) < 0)
f2fs_params.start_sector = 0;
else
f2fs_params.start_sector = geom.start;
}
else {
printf("\n\n\tError: Volume type is not supported!!!\n");