diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-02-08 20:03:14 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-02-08 20:03:14 +0100 |
| commit | cdccaa9467b982d57b139818d15e1e994feca372 (patch) | |
| tree | 573e6aa79bce8105b3a2508a462d03368ac5214c | |
| parent | 37b40adf2d1b4a5e51323be73ccf8ddcf3f15dd3 (diff) | |
| download | lwn-cdccaa9467b982d57b139818d15e1e994feca372.tar.gz lwn-cdccaa9467b982d57b139818d15e1e994feca372.zip | |
cdrom: move shared static to cdrom_device_info
The keeplocked variable in the cdrom driver is shared across multiple
drives, but set in per-device ioctls. Move it to the per-device struct,
avoiding that the setting on one drive affects the driver's behavior
when closing another.
[ Impact: limit udev's confusion to one drive when a CD burning program
unlocks the CD door at the end of burning. ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/cdrom/cdrom.c | 12 | ||||
| -rw-r--r-- | include/linux/cdrom.h | 3 |
2 files changed, 7 insertions, 8 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 8fefe59f52a7..d620b4495745 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -286,8 +286,6 @@ /* used to tell the module to turn on full debugging messages */ static bool debug; -/* used to keep tray locked at all times */ -static int keeplocked; /* default compatibility mode */ static bool autoclose=1; static bool autoeject; @@ -1204,7 +1202,7 @@ void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode) cdinfo(CD_CLOSE, "Use count for \"/dev/%s\" now zero\n", cdi->name); cdrom_dvd_rw_close_write(cdi); - if ((cdo->capability & CDC_LOCK) && !keeplocked) { + if ((cdo->capability & CDC_LOCK) && !cdi->keeplocked) { cdinfo(CD_CLOSE, "Unlocking door!\n"); cdo->lock_door(cdi, 0); } @@ -1371,7 +1369,7 @@ static int cdrom_select_disc(struct cdrom_device_info *cdi, int slot) curslot = info->hdr.curslot; kfree(info); - if (cdi->use_count > 1 || keeplocked) { + if (cdi->use_count > 1 || cdi->keeplocked) { if (slot == CDSL_CURRENT) { return curslot; } else { @@ -2289,7 +2287,7 @@ static int cdrom_ioctl_eject(struct cdrom_device_info *cdi) if (!CDROM_CAN(CDC_OPEN_TRAY)) return -ENOSYS; - if (cdi->use_count != 1 || keeplocked) + if (cdi->use_count != 1 || cdi->keeplocked) return -EBUSY; if (CDROM_CAN(CDC_LOCK)) { int ret = cdi->ops->lock_door(cdi, 0); @@ -2316,7 +2314,7 @@ static int cdrom_ioctl_eject_sw(struct cdrom_device_info *cdi, if (!CDROM_CAN(CDC_OPEN_TRAY)) return -ENOSYS; - if (keeplocked) + if (cdi->keeplocked) return -EBUSY; cdi->options &= ~(CDO_AUTO_CLOSE | CDO_AUTO_EJECT); @@ -2447,7 +2445,7 @@ static int cdrom_ioctl_lock_door(struct cdrom_device_info *cdi, if (!CDROM_CAN(CDC_LOCK)) return -EDRIVE_CANT_DO_THIS; - keeplocked = arg ? 1 : 0; + cdi->keeplocked = arg ? 1 : 0; /* * Don't unlock the door on multiple opens by default, but allow diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h index 35eae4b67503..7c48029dffe6 100644 --- a/include/linux/cdrom.h +++ b/include/linux/cdrom.h @@ -952,7 +952,8 @@ struct cdrom_device_info { char name[20]; /* name of the device type */ /* per-device flags */ __u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */ - __u8 reserved : 6; /* not used yet */ + __u8 keeplocked : 1; /* CDROM_LOCKDOOR status */ + __u8 reserved : 5; /* not used yet */ int cdda_method; /* see flags */ __u8 last_sense; __u8 media_written; /* dirty flag, DVD+RW bookkeeping */ |