diff options
| author |   Christoph Hellwig <hch@lst.de> | 2020-09-08 16:53:34 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-09-10 09:32:30 -0600 |
| commit | 433d21ce313e93200cd0938aa717639c8098d45f (patch) | |
| tree | 5a809510e149d53c5b58b1f470461cc4e1e3288d /drivers/block | |
| parent | swim: use bdev_check_media_change (diff) | |
| download | linux-dev-433d21ce313e93200cd0938aa717639c8098d45f.tar.xz linux-dev-433d21ce313e93200cd0938aa717639c8098d45f.zip | |
swim: simplify media change handling
floppy_revalidate mostly duplicates work already done in floppy_open
despite only beeing called from floppy_open. Remove the function and
just clear the ->ejected flag directly under the right condition.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/swim.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/drivers/block/swim.c b/drivers/block/swim.c index d4565c555b28..52dd1efa00f9 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -217,8 +217,6 @@ extern int swim_read_sector_header(struct swim __iomem *base, extern int swim_read_sector_data(struct swim __iomem *base, unsigned char *data); -static int floppy_revalidate(struct gendisk *disk); - static DEFINE_MUTEX(swim_mutex); static inline void set_swim_mode(struct swim __iomem *base, int enable) { @@ -640,8 +638,8 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) return 0; if (mode & (FMODE_READ|FMODE_WRITE)) { - if (bdev_check_media_change(bdev)) - floppy_revalidate(bdev->bd_disk); + if (bdev_check_media_change(bdev) && fs->disk_in) + fs->ejected = 0; if ((mode & FMODE_WRITE) && fs->write_protected) { err = -EROFS; goto out; @@ -738,24 +736,6 @@ static unsigned int floppy_check_events(struct gendisk *disk, return fs->ejected ? DISK_EVENT_MEDIA_CHANGE : 0; } -static int floppy_revalidate(struct gendisk *disk) -{ - struct floppy_state *fs = disk->private_data; - struct swim __iomem *base = fs->swd->base; - - swim_drive(base, fs->location); - - if (fs->ejected) - setup_medium(fs); - - if (!fs->disk_in) - swim_motor(base, OFF); - else - fs->ejected = 0; - - return !fs->disk_in; -} - static const struct block_device_operations floppy_fops = { .owner = THIS_MODULE, .open = floppy_unlocked_open, |