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Acquire periph reference when handling d_getattr() method call.

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While GEOM in general has provider opened while sending BIO_GETATTR,
GEOM DISK does not really need to open disk to read medium-unrelated
attributes for own use.

Proposed by:	ken
This commit is contained in:
Alexander Motin 2013-06-12 09:07:15 +00:00
parent 33d6ebecd5
commit 7912f917ca
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251649
2 changed files with 6 additions and 0 deletions
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3
sys/cam/ata/ata_da.c
View File

@ -1080,10 +1080,13 @@ adagetattr(struct bio *bp)
struct cam_periph *periph;
periph = (struct cam_periph *)bp->bio_disk->d_drv1;
if (cam_periph_acquire(periph) != CAM_REQ_CMP)
return (ENXIO);
cam_periph_lock(periph);
ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
periph->path);
cam_periph_unlock(periph);
cam_periph_release(periph);
if (ret == 0)
bp->bio_completed = bp->bio_length;
return ret;

3
sys/cam/scsi/scsi_da.c
View File

@ -1427,10 +1427,13 @@ dagetattr(struct bio *bp)
struct cam_periph *periph;
periph = (struct cam_periph *)bp->bio_disk->d_drv1;
if (cam_periph_acquire(periph) != CAM_REQ_CMP)
return (ENXIO);
cam_periph_lock(periph);
ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
periph->path);
cam_periph_unlock(periph);
cam_periph_release(periph);
if (ret == 0)
bp->bio_completed = bp->bio_length;
return ret;