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Am Mon, 10 Feb 2020 00:23:20 +0000 (UTC)
Scott Long <sco...@freebsd.org> schrieb:

> Author: scottl
> Date: Mon Feb 10 00:23:20 2020
> New Revision: 357710
> URL: https://svnweb.freebsd.org/changeset/base/357710
> 
> Log:
>   Add rudamentary support for UFS to probe whether a block device supports the
>   BIO_SPEEDUP command.  Add complimentary support to the CAM periphs that
>   support it.
> 
> Modified:
>   head/sys/cam/ata/ata_da.c
>   head/sys/cam/nvme/nvme_da.c
>   head/sys/cam/scsi/scsi_da.c
>   head/sys/ufs/ffs/ffs_softdep.c
>   head/sys/ufs/ffs/ffs_vfsops.c
> 
> Modified: head/sys/cam/ata/ata_da.c
> ==============================================================================
> --- head/sys/cam/ata/ata_da.c Mon Feb 10 00:05:04 2020        (r357709)
> +++ head/sys/cam/ata/ata_da.c Mon Feb 10 00:23:20 2020        (r357710)
> @@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
>  #include <sys/proc.h>
>  #include <sys/reboot.h>
>  #include <sys/sbuf.h>
> +#include <geom/geom.h>
>  #include <geom/geom_disk.h>
>  #endif /* _KERNEL */
>  
> @@ -1565,6 +1566,10 @@ adagetattr(struct bio *bp)
>  {
>       int ret;
>       struct cam_periph *periph;
> +
> +     /* TODO: tunable knob */
> +     if (g_handleattr_int(bp, "GEOM::canspeedup", 1))
> +             return (0);
>  
>       periph = (struct cam_periph *)bp->bio_disk->d_drv1;
>       cam_periph_lock(periph);
> 
> Modified: head/sys/cam/nvme/nvme_da.c
> ==============================================================================
> --- head/sys/cam/nvme/nvme_da.c       Mon Feb 10 00:05:04 2020        
> (r357709)
> +++ head/sys/cam/nvme/nvme_da.c       Mon Feb 10 00:23:20 2020        
> (r357710)
> @@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
>  #include <sys/cons.h>
>  #include <sys/proc.h>
>  #include <sys/reboot.h>
> +#include <geom/geom.h>
>  #include <geom/geom_disk.h>
>  #endif /* _KERNEL */
>  
> @@ -699,6 +700,10 @@ ndagetattr(struct bio *bp)
>  {
>       int ret;
>       struct cam_periph *periph;
> +
> +     /* TODO: tunable knob */
> +     if (g_handleattr_int(bp, "GEOM::canspeedup", 1))
> +             return (0);
>  
>       periph = (struct cam_periph *)bp->bio_disk->d_drv1;
>       cam_periph_lock(periph);
> 
> Modified: head/sys/cam/scsi/scsi_da.c
> ==============================================================================
> --- head/sys/cam/scsi/scsi_da.c       Mon Feb 10 00:05:04 2020        
> (r357709)
> +++ head/sys/cam/scsi/scsi_da.c       Mon Feb 10 00:23:20 2020        
> (r357710)
> @@ -1942,6 +1942,10 @@ dagetattr(struct bio *bp)
>       int ret;
>       struct cam_periph *periph;
>  
> +     /* TODO: tunable knob for this */
> +     if (g_handleattr_int(bp, "GEOM::canspeedup", 1))
> +             return (0);
> +
>       periph = (struct cam_periph *)bp->bio_disk->d_drv1;
>       cam_periph_lock(periph);
>       ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
> 
> Modified: head/sys/ufs/ffs/ffs_softdep.c
> ==============================================================================
> --- head/sys/ufs/ffs/ffs_softdep.c    Mon Feb 10 00:05:04 2020        
> (r357709)
> +++ head/sys/ufs/ffs/ffs_softdep.c    Mon Feb 10 00:23:20 2020        
> (r357710)
> @@ -1464,6 +1464,9 @@ softdep_send_speedup(struct ufsmount *ump, size_t shor
>  {
>       struct buf *bp;
>  
> +     if ((ump->um_flags & UM_CANSPEEDUP) == 0)
> +             return;
> +
>       bp = malloc(sizeof(*bp), M_TRIM, M_WAITOK | M_ZERO);
>       bp->b_iocmd = BIO_SPEEDUP;
>       bp->b_ioflags = flags;
> 
> Modified: head/sys/ufs/ffs/ffs_vfsops.c
> ==============================================================================
> --- head/sys/ufs/ffs/ffs_vfsops.c     Mon Feb 10 00:05:04 2020        
> (r357709)
> +++ head/sys/ufs/ffs/ffs_vfsops.c     Mon Feb 10 00:23:20 2020        
> (r357710)
> @@ -794,7 +794,7 @@ ffs_mountfs(devvp, mp, td)
>       struct ucred *cred;
>       struct g_consumer *cp;
>       struct mount *nmp;
> -     int candelete;
> +     int candelete, canspeedup;
>       off_t loc;
>  
>       fs = NULL;
> @@ -1009,6 +1009,13 @@ ffs_mountfs(devvp, mp, td)
>                       ump->um_trimhash = hashinit(MAXTRIMIO, M_TRIM,
>                           &ump->um_trimlisthashsize);
>               }
> +     }
> +
> +     /* TODO: sysctl tunables, runtime modification */
> +     len = sizeof(int);
> +     if (g_io_getattr("GEOM::canspeedup", cp, &len, &canspeedup) == 0) {
> +             if (canspeedup)
> +                     ump->um_flags |= UM_CANSPEEDUP;
>       }
>  
>       ump->um_mountp = mp;
> _______________________________________________
> svn-src-h...@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/svn-src-head
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It seems that this commit makes our systems to hang at the point, when trying 
to mount the
root partition, last seen message on console is:

[...]
mountroot: waiting for device /dev/gpt/root...


The root partitions on those systems resides on UFS2 formated SSDs (if this has 
any relevance).

Regards,
oh

- -- 
O. Hartmann

Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
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