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[PATCH] USB: ub 01 remove first_open 

The first_open was long overdue for removal, but I wanted to keep this
separate for other changes in case of regressions.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Pete Zaitcev 2006-03-02 16:36:09 -08:00 committed by Greg Kroah-Hartman
parent ae55717584
commit 4d69581929
1 changed files with 0 additions and 23 deletions
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23
drivers/block/ub.c
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@ -8,7 +8,6 @@
* and is not licensed separately. See file COPYING for details.
*
* TODO (sorted by decreasing priority)
* -- Kill first_open (Al Viro fixed the block layer now)
* -- set readonly flag for CDs, set removable flag for CF readers
* -- do inquiry and verify we got a disk and not a tape (for LUN mismatch)
* -- special case some senses, e.g. 3a/0 -> no media present, reduce retries
@ -334,7 +333,6 @@ struct ub_lun {
int changed; /* Media was changed */
int removable;
int readonly;
int first_open; /* Kludge. See ub_bd_open. */
struct ub_request urq;
@ -1849,26 +1847,6 @@ static int ub_bd_open(struct inode *inode, struct file *filp)
sc->openc++;
spin_unlock_irqrestore(&ub_lock, flags);
/*
* This is a workaround for a specific problem in our block layer.
* In 2.6.9, register_disk duplicates the code from rescan_partitions.
* However, if we do add_disk with a device which persistently reports
* a changed media, add_disk calls register_disk, which does do_open,
* which will call rescan_paritions for changed media. After that,
* register_disk attempts to do it all again and causes double kobject
* registration and a eventually an oops on module removal.
*
* The bottom line is, Al Viro says that we should not allow
* bdev->bd_invalidated to be set when doing add_disk no matter what.
*/
if (lun->first_open) {
lun->first_open = 0;
if (lun->changed) {
rc = -ENOMEDIUM;
goto err_open;
}
}
if (lun->removable || lun->readonly)
check_disk_change(inode->i_bdev);
@ -2537,7 +2515,6 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum)
lun->removable = 1; /* XXX Query this from the device */
lun->changed = 1; /* ub_revalidate clears only */
lun->first_open = 1;
ub_revalidate(sc, lun);
rc = -ENOMEM;