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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-04-19 00:43:14 +0900 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-22 15:16:32 -0500 |
| commit | 97f46ae45c70857e459b7f8df1fc2807e7bd90a9 (patch) | |
| tree | 7e7245349c433f67be23c6a75c3936c0466b59d6 /drivers/scsi/scsi_sysfs.c | |
| parent | 643eb2d932c97a0583381629d632d486934cf7ee (diff) | |
| download | linux-97f46ae45c70857e459b7f8df1fc2807e7bd90a9.tar.gz | |
[SCSI] bsg: add release callback support
This patch adds release callback support, which is called when a bsg device goes away. bsg_register_queue() takes a pointer to a callback function. This feature is useful for stuff like sas_host that can't use the release callback in struct device. If a caller doesn't need bsg's release callback, it can call bsg_register_queue() with NULL pointer (e.g. scsi devices can use release callback in struct device so they don't need bsg's callback). With this patch, bsg uses kref for refcounts on bsg devices instead of get/put_device in fops->open/release. bsg calls put_device and the caller's release callback (if it was registered) in kref_put's release. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 198aa4571e35..049103f1d16f 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -889,7 +889,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev) goto out; } - error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL); + error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL); if (error) sdev_printk(KERN_INFO, sdev, |