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| author | Davidlohr Bueso | 2012-06-03 20:15:20 +0200 |
|---|---|---|
| committer | Karel Zak | 2012-06-06 10:40:40 +0200 |
| commit | 618882d6095a2c11876e800fef1ff442d60605f5 (patch) | |
| tree | 1c4e98f4f9ffac576f88b838591ee9ab024c9409 /fdisk/utils.c | |
| parent | fdisk: add device topology to the API (diff) | |
| download | kernel-qcow2-util-linux-618882d6095a2c11876e800fef1ff442d60605f5.tar.gz kernel-qcow2-util-linux-618882d6095a2c11876e800fef1ff442d60605f5.tar.xz kernel-qcow2-util-linux-618882d6095a2c11876e800fef1ff442d60605f5.zip | |
fdisk: add total sectors
Add the total_sectors variable to the context structure. This is the initial
geometry information.
Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Diffstat (limited to 'fdisk/utils.c')
| -rw-r--r-- | fdisk/utils.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fdisk/utils.c b/fdisk/utils.c index 5de4cab02..3162c7054 100644 --- a/fdisk/utils.c +++ b/fdisk/utils.c @@ -40,6 +40,16 @@ static unsigned long __get_sector_size(int fd) return DEFAULT_SECTOR_SIZE; } +static int __discover_geometry(struct fdisk_context *cxt) +{ + sector_t nsects; + + /* get number of 512-byte sectors, and convert it the real sectors */ + if (!blkdev_get_sectors(cxt->dev_fd, &nsects)) + cxt->total_sectors = (nsects / (cxt->sector_size >> 9)); + return 0; +} + static int __discover_topology(struct fdisk_context *cxt) { #ifdef HAVE_LIBBLKID @@ -151,7 +161,9 @@ struct fdisk_context *fdisk_new_context_from_filename(const char *fname, int rea cxt->dev_path = strdup(fname); if (!cxt->dev_path) goto fail; + __discover_topology(cxt); + __discover_geometry(cxt); DBG(CONTEXT, dbgprint("context initialized for %s [%s]", fname, readonly ? "READ-ONLY" : "READ-WRITE")); |