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block: disable sysfs parts of the disk command filter 

We still have life time issues with the sysfs command filter kobject,
so disable it for 2.6.27 release. We can revisit this and make it work
properly for 2.6.28, for 2.6.27 release it's too risky.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2008-09-11 14:20:23 +02:00
parent adee14b2e1
commit 2dc75d3c3b
5 changed files with 2 additions and 8 deletions
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2
block/cmd-filter.c
View File

@ -49,6 +49,7 @@ int blk_verify_command(struct blk_cmd_filter *filter,
}
EXPORT_SYMBOL(blk_verify_command);
#if 0
/* and now, the sysfs stuff */
static ssize_t rcf_cmds_show(struct blk_cmd_filter *filter, char *page,
int rw)
@ -233,3 +234,4 @@ void blk_unregister_filter(struct gendisk *disk)
kobject_put(disk->holder_dir->parent);
}
EXPORT_SYMBOL(blk_unregister_filter);
#endif

2
drivers/ide/ide-cd.c
View File

@ -1933,7 +1933,6 @@ static void ide_cd_remove(ide_drive_t *drive)
ide_proc_unregister_driver(drive, info->driver);
blk_unregister_filter(info->disk);
del_gendisk(info->disk);
ide_cd_put(info);
@ -2159,7 +2158,6 @@ static int ide_cd_probe(ide_drive_t *drive)
g->fops = &idecd_ops;
g->flags |= GENHD_FL_REMOVABLE;
add_disk(g);
blk_register_filter(g);
return 0;
out_free_cd:

2
drivers/scsi/sd.c
View File

@ -1875,7 +1875,6 @@ static int sd_probe(struct device *dev)
dev_set_drvdata(dev, sdkp);
add_disk(gd);
blk_register_filter(gd);
sd_dif_config_host(sdkp);
sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
@ -1909,7 +1908,6 @@ static int sd_remove(struct device *dev)
struct scsi_disk *sdkp = dev_get_drvdata(dev);
device_del(&sdkp->dev);
blk_unregister_filter(sdkp->disk);
del_gendisk(sdkp->disk);
sd_shutdown(dev);

2
drivers/scsi/sr.c
View File

@ -656,7 +656,6 @@ static int sr_probe(struct device *dev)
dev_set_drvdata(dev, cd);
disk->flags |= GENHD_FL_REMOVABLE;
add_disk(disk);
blk_register_filter(disk);
sdev_printk(KERN_DEBUG, sdev,
"Attached scsi CD-ROM %s\n", cd->cdi.name);
@ -895,7 +894,6 @@ static int sr_remove(struct device *dev)
{
struct scsi_cd *cd = dev_get_drvdata(dev);
blk_unregister_filter(cd->disk);
del_gendisk(cd->disk);
mutex_lock(&sr_ref_mutex);

2
include/linux/blkdev.h
View File

@ -843,8 +843,6 @@ extern int blkdev_issue_flush(struct block_device *, sector_t *);
*/
extern int blk_verify_command(struct blk_cmd_filter *filter,
unsigned char *cmd, int has_write_perm);
extern int blk_register_filter(struct gendisk *disk);
extern void blk_unregister_filter(struct gendisk *disk);
extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
#define MAX_PHYS_SEGMENTS 128