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Add rudamentary support for UFS to probe whether a block device supports the

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BIO_SPEEDUP command.  Add complimentary support to the CAM periphs that
support it.
This commit is contained in:
Scott Long 2020-02-10 00:23:20 +00:00
parent 39c614c6b7
commit 7d99bda79e
5 changed files with 25 additions and 1 deletions
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5
sys/cam/ata/ata_da.c
View File

@ -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 */
@ -1566,6 +1567,10 @@ 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);
ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,

5
sys/cam/nvme/nvme_da.c
View File

@ -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 */
@ -700,6 +701,10 @@ 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);
ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,

4
sys/cam/scsi/scsi_da.c
View File

@ -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,

3
sys/ufs/ffs/ffs_softdep.c
View File

@ -1464,6 +1464,9 @@ softdep_send_speedup(struct ufsmount *ump, size_t shortage, u_int flags)
{
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;

9
sys/ufs/ffs/ffs_vfsops.c
View File

@ -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;
@ -1011,6 +1011,13 @@ ffs_mountfs(devvp, mp, td)
}
}
/* 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;
ump->um_dev = dev;
ump->um_devvp = devvp;