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block,ide: simplify bdops->set_capacity() to ->unlock_native_capacity()

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bdops->set_capacity() is unnecessarily generic.  All that's required
is a simple one way notification to lower level driver telling it to
try to unlock native capacity.  There's no reason to pass in target
capacity or return the new capacity.  The former is always the
inherent native capacity and the latter can be handled via the usual
device resize / revalidation path.  In fact, the current API is always
used that way.

Replace ->set_capacity() with ->unlock_native_capacity() which take
only @disk and doesn't return anything.  IDE which is the only current
user of the API is converted accordingly.

Signed-off-by: Tejun Heo <[email protected]>
Cc: Ben Hutchings <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Acked-by: David S. Miller <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2010-05-15 20:09:29 +02:00 • committed by Jens Axboe
commit c3e33e043f
5 changed files with 24 additions and 36 deletions
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4
fs/partitions/check.c
View file

@ -601,10 +601,10 @@ rescan:
"%s: p%d size %llu exceeds device capacity, ",
disk->disk_name, p, (unsigned long long) size);
if (bdops->set_capacity &&
if (bdops->unlock_native_capacity &&
(disk->flags & GENHD_FL_NATIVE_CAPACITY) == 0) {
printk(KERN_CONT "enabling native capacity\n");
bdops->set_capacity(disk, ~0ULL);
bdops->unlock_native_capacity(disk);
disk->flags |= GENHD_FL_NATIVE_CAPACITY;
/* free state and restart */
kfree(state);