From 1a8a74f03fcde1725ff26520220f3d21dbd8faa1 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 9 Mar 2011 19:54:27 +0100 Subject: floppy,{ami|ata}flop: Convert to bdops->check_events() Convert the floppy drivers from ->media_changed() to ->check_events(). Both floppy and ataflop buffer media changed state bit and clear them on revalidation and will behave correctly with kernel event polling. I can't tell how amiflop clears its event and it's possible that it may generate spurious events when polled. Signed-off-by: Tejun Heo Cc: Jens Axboe Cc: Kay Sievers --- drivers/block/ataflop.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/block/ataflop.c') diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index 605a67e40bbf..c871eae14120 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -1324,23 +1324,24 @@ static void finish_fdc_done( int dummy ) * due to unrecognised disk changes. */ -static int check_floppy_change(struct gendisk *disk) +static unsigned int floppy_check_events(struct gendisk *disk, + unsigned int clearing) { struct atari_floppy_struct *p = disk->private_data; unsigned int drive = p - unit; if (test_bit (drive, &fake_change)) { /* simulated change (e.g. after formatting) */ - return 1; + return DISK_EVENT_MEDIA_CHANGE; } if (test_bit (drive, &changed_floppies)) { /* surely changed (the WP signal changed at least once) */ - return 1; + return DISK_EVENT_MEDIA_CHANGE; } if (UD.wpstat) { /* WP is on -> could be changed: to be sure, buffers should be * invalidated... */ - return 1; + return DISK_EVENT_MEDIA_CHANGE; } return 0; @@ -1570,7 +1571,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, * or the next access will revalidate - and clear UDT :-( */ - if (check_floppy_change(disk)) + if (floppy_check_events(disk, 0)) floppy_revalidate(disk); if (UD.flags & FTD_MSG) @@ -1904,7 +1905,7 @@ static const struct block_device_operations floppy_fops = { .open = floppy_unlocked_open, .release = floppy_release, .ioctl = fd_ioctl, - .media_changed = check_floppy_change, + .check_events = floppy_check_events, .revalidate_disk= floppy_revalidate, }; @@ -1963,6 +1964,7 @@ static int __init atari_floppy_init (void) unit[i].disk->first_minor = i; sprintf(unit[i].disk->disk_name, "fd%d", i); unit[i].disk->fops = &floppy_fops; + unit[i].disk->events = DISK_EVENT_MEDIA_CHANGE; unit[i].disk->private_data = &unit[i]; unit[i].disk->queue = blk_init_queue(do_fd_request, &ataflop_lock); -- cgit v1.2.3