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| author | Christoph Hellwig <hch@lst.de> | 2020-04-25 09:57:00 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-05-04 10:13:42 -0600 |
| commit | a711d91cd97e6c9a554ccd1652527a7f36661857 (patch) | |
| tree | f2cde770a237e0bc8415b86a709cfa070a0d7a21 /drivers/cdrom | |
| parent | 21f3cfeab304fc07b90d93d98d4d2f62110fe6b2 (diff) | |
| download | linux-stable-a711d91cd97e6c9a554ccd1652527a7f36661857.tar.gz linux-stable-a711d91cd97e6c9a554ccd1652527a7f36661857.tar.bz2 linux-stable-a711d91cd97e6c9a554ccd1652527a7f36661857.zip | |
block: add a cdrom_device_info pointer to struct gendisk
Add a pointer to the CDROM information structure to struct gendisk.
This will allow various removable media file systems to call directly
into the CDROM layer instead of abusing ioctls with kernel pointers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/cdrom')
| -rw-r--r-- | drivers/cdrom/cdrom.c | 5 | ||||
| -rw-r--r-- | drivers/cdrom/gdrom.c | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index faca0f346fff..a1d2112fd283 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -586,7 +586,7 @@ static int cdrom_mrw_set_lba_space(struct cdrom_device_info *cdi, int space) return 0; } -int register_cdrom(struct cdrom_device_info *cdi) +int register_cdrom(struct gendisk *disk, struct cdrom_device_info *cdi) { static char banner_printed; const struct cdrom_device_ops *cdo = cdi->ops; @@ -601,6 +601,9 @@ int register_cdrom(struct cdrom_device_info *cdi) cdrom_sysctl_register(); } + cdi->disk = disk; + disk->cdi = cdi; + ENSURE(cdo, drive_status, CDC_DRIVE_STATUS); if (cdo->check_events == NULL && cdo->media_changed == NULL) WARN_ON_ONCE(cdo->capability & (CDC_MEDIA_CHANGED | CDC_SELECT_DISC)); diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index c51292c2a131..09b0cd292720 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -770,7 +770,7 @@ static int probe_gdrom(struct platform_device *devptr) goto probe_fail_no_disk; } probe_gdrom_setupdisk(); - if (register_cdrom(gd.cd_info)) { + if (register_cdrom(gd.disk, gd.cd_info)) { err = -ENODEV; goto probe_fail_cdrom_register; } |