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paride: Convert to bdops->check_events() 

Convert paride drivers from ->media_changed() to ->check_events().

pcd and pd buffer and clear events after reporting; however, pf
unconditionally reports MEDIA_CHANGE and will generate spurious events
when polled.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Tim Waugh <tim@cyberelk.net>
This commit is contained in:
Tejun Heo 2011-03-09 19:54:28 +01:00
parent 1c27030bd2
commit b1b56b93f3
3 changed files with 21 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/block/paride/pcd.c
View File

@ -172,7 +172,8 @@ module_param_array(drive3, int, NULL, 0);
static int pcd_open(struct cdrom_device_info *cdi, int purpose);
static void pcd_release(struct cdrom_device_info *cdi);
static int pcd_drive_status(struct cdrom_device_info *cdi, int slot_nr);
static int pcd_media_changed(struct cdrom_device_info *cdi, int slot_nr);
static unsigned int pcd_check_events(struct cdrom_device_info *cdi,
unsigned int clearing, int slot_nr);
static int pcd_tray_move(struct cdrom_device_info *cdi, int position);
static int pcd_lock_door(struct cdrom_device_info *cdi, int lock);
static int pcd_drive_reset(struct cdrom_device_info *cdi);
@ -257,10 +258,11 @@ static int pcd_block_ioctl(struct block_device *bdev, fmode_t mode,
return ret;
}
static int pcd_block_media_changed(struct gendisk *disk)
static unsigned int pcd_block_check_events(struct gendisk *disk,
unsigned int clearing)
{
struct pcd_unit *cd = disk->private_data;
return cdrom_media_changed(&cd->info);
return cdrom_check_events(&cd->info, clearing);
}
static const struct block_device_operations pcd_bdops = {
@ -268,14 +270,14 @@ static const struct block_device_operations pcd_bdops = {
.open = pcd_block_open,
.release = pcd_block_release,
.ioctl = pcd_block_ioctl,
.media_changed = pcd_block_media_changed,
.check_events = pcd_block_check_events,
};
static struct cdrom_device_ops pcd_dops = {
.open = pcd_open,
.release = pcd_release,
.drive_status = pcd_drive_status,
.media_changed = pcd_media_changed,
.check_events = pcd_check_events,
.tray_move = pcd_tray_move,
.lock_door = pcd_lock_door,
.get_mcn = pcd_get_mcn,
@ -318,6 +320,7 @@ static void pcd_init_units(void)
disk->first_minor = unit;
strcpy(disk->disk_name, cd->name); /* umm... */
disk->fops = &pcd_bdops;
disk->events = DISK_EVENT_MEDIA_CHANGE;
}
}
@ -502,13 +505,14 @@ static int pcd_packet(struct cdrom_device_info *cdi, struct packet_command *cgc)
#define DBMSG(msg) ((verbose>1)?(msg):NULL)
static int pcd_media_changed(struct cdrom_device_info *cdi, int slot_nr)
static unsigned int pcd_check_events(struct cdrom_device_info *cdi,
unsigned int clearing, int slot_nr)
{
struct pcd_unit *cd = cdi->handle;
int res = cd->changed;
if (res)
cd->changed = 0;
return res;
return res ? DISK_EVENT_MEDIA_CHANGE : 0;
}
static int pcd_lock_door(struct cdrom_device_info *cdi, int lock)

7
drivers/block/paride/pd.c
View File

@ -794,7 +794,7 @@ static int pd_release(struct gendisk *p, fmode_t mode)
return 0;
}
static int pd_check_media(struct gendisk *p)
static unsigned int pd_check_events(struct gendisk *p, unsigned int clearing)
{
struct pd_unit *disk = p->private_data;
int r;
@ -803,7 +803,7 @@ static int pd_check_media(struct gendisk *p)
pd_special_command(disk, pd_media_check);
r = disk->changed;
disk->changed = 0;
return r;
return r ? DISK_EVENT_MEDIA_CHANGE : 0;
}
static int pd_revalidate(struct gendisk *p)
@ -822,7 +822,7 @@ static const struct block_device_operations pd_fops = {
.release = pd_release,
.ioctl = pd_ioctl,
.getgeo = pd_getgeo,
.media_changed = pd_check_media,
.check_events = pd_check_events,
.revalidate_disk= pd_revalidate
};
@ -837,6 +837,7 @@ static void pd_probe_drive(struct pd_unit *disk)
p->fops = &pd_fops;
p->major = major;
p->first_minor = (disk - pd) << PD_BITS;
p->events = DISK_EVENT_MEDIA_CHANGE;
disk->gd = p;
p->private_data = disk;
p->queue = pd_queue;

10
drivers/block/paride/pf.c
View File

@ -243,7 +243,8 @@ static struct pf_unit units[PF_UNITS];
static int pf_identify(struct pf_unit *pf);
static void pf_lock(struct pf_unit *pf, int func);
static void pf_eject(struct pf_unit *pf);
static int pf_check_media(struct gendisk *disk);
static unsigned int pf_check_events(struct gendisk *disk,
unsigned int clearing);
static char pf_scratch[512]; /* scratch block buffer */
@ -270,7 +271,7 @@ static const struct block_device_operations pf_fops = {
.release = pf_release,
.ioctl = pf_ioctl,
.getgeo = pf_getgeo,
.media_changed = pf_check_media,
.check_events = pf_check_events,
};
static void __init pf_init_units(void)
@ -293,6 +294,7 @@ static void __init pf_init_units(void)
disk->first_minor = unit;
strcpy(disk->disk_name, pf->name);
disk->fops = &pf_fops;
disk->events = DISK_EVENT_MEDIA_CHANGE;
if (!(*drives[unit])[D_PRT])
pf_drive_count++;
}
@ -377,9 +379,9 @@ static int pf_release(struct gendisk *disk, fmode_t mode)
}
static int pf_check_media(struct gendisk *disk)
static unsigned int pf_check_events(struct gendisk *disk, unsigned int clearing)
{
return 1;
return DISK_EVENT_MEDIA_CHANGE;
}
static inline int status_reg(struct pf_unit *pf)