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3580 Want zvols to return volblocksize when queried for physical block size

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illumos/illumos-gate@a0b60564df
This commit is contained in:
Andriy Gapon 2013-12-04 14:49:20 +00:00
parent 69dd9f346a
commit 432048d130
1 changed files with 52 additions and 31 deletions
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83
uts/common/fs/zfs/zvol.c
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@ -1627,8 +1627,6 @@ int
zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
{
zvol_state_t *zv;
struct dk_cinfo dki;
struct dk_minfo dkm;
struct dk_callback *dkc;
int error = 0;
rl_t *rl;
@ -1646,6 +1644,9 @@ zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
switch (cmd) {
case DKIOCINFO:
{
struct dk_cinfo dki;
bzero(&dki, sizeof (dki));
(void) strcpy(dki.dki_cname, "zvol");
(void) strcpy(dki.dki_dname, "zvol");
@ -1656,8 +1657,12 @@ zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
if (ddi_copyout(&dki, (void *)arg, sizeof (dki), flag))
error = SET_ERROR(EFAULT);
return (error);
}
case DKIOCGMEDIAINFO:
{
struct dk_minfo dkm;
bzero(&dkm, sizeof (dkm));
dkm.dki_lbsize = 1U << zv->zv_min_bs;
dkm.dki_capacity = zv->zv_volsize >> zv->zv_min_bs;
@ -1666,16 +1671,32 @@ zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
if (ddi_copyout(&dkm, (void *)arg, sizeof (dkm), flag))
error = SET_ERROR(EFAULT);
return (error);
}
case DKIOCGMEDIAINFOEXT:
{
struct dk_minfo_ext dkmext;
bzero(&dkmext, sizeof (dkmext));
dkmext.dki_lbsize = 1U << zv->zv_min_bs;
dkmext.dki_pbsize = zv->zv_volblocksize;
dkmext.dki_capacity = zv->zv_volsize >> zv->zv_min_bs;
dkmext.dki_media_type = DK_UNKNOWN;
mutex_exit(&zfsdev_state_lock);
if (ddi_copyout(&dkmext, (void *)arg, sizeof (dkmext), flag))
error = SET_ERROR(EFAULT);
return (error);
}
case DKIOCGETEFI:
{
uint64_t vs = zv->zv_volsize;
uint8_t bs = zv->zv_min_bs;
{
uint64_t vs = zv->zv_volsize;
uint8_t bs = zv->zv_min_bs;
mutex_exit(&zfsdev_state_lock);
error = zvol_getefi((void *)arg, flag, vs, bs);
return (error);
}
mutex_exit(&zfsdev_state_lock);
error = zvol_getefi((void *)arg, flag, vs, bs);
return (error);
}
case DKIOCFLUSHWRITECACHE:
dkc = (struct dk_callback *)arg;
@ -1688,31 +1709,31 @@ zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
return (error);
case DKIOCGETWCE:
{
int wce = (zv->zv_flags & ZVOL_WCE) ? 1 : 0;
if (ddi_copyout(&wce, (void *)arg, sizeof (int),
flag))
error = SET_ERROR(EFAULT);
{
int wce = (zv->zv_flags & ZVOL_WCE) ? 1 : 0;
if (ddi_copyout(&wce, (void *)arg, sizeof (int),
flag))
error = SET_ERROR(EFAULT);
break;
}
case DKIOCSETWCE:
{
int wce;
if (ddi_copyin((void *)arg, &wce, sizeof (int),
flag)) {
error = SET_ERROR(EFAULT);
break;
}
case DKIOCSETWCE:
{
int wce;
if (ddi_copyin((void *)arg, &wce, sizeof (int),
flag)) {
error = SET_ERROR(EFAULT);
break;
}
if (wce) {
zv->zv_flags |= ZVOL_WCE;
mutex_exit(&zfsdev_state_lock);
} else {
zv->zv_flags &= ~ZVOL_WCE;
mutex_exit(&zfsdev_state_lock);
zil_commit(zv->zv_zilog, ZVOL_OBJ);
}
return (0);
if (wce) {
zv->zv_flags |= ZVOL_WCE;
mutex_exit(&zfsdev_state_lock);
} else {
zv->zv_flags &= ~ZVOL_WCE;
mutex_exit(&zfsdev_state_lock);
zil_commit(zv->zv_zilog, ZVOL_OBJ);
}
return (0);
}
case DKIOCGGEOM:
case DKIOCGVTOC: