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| author | mav <mav@FreeBSD.org> | 2014-12-18 08:38:07 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2014-12-18 08:38:07 +0000 |
| commit | 4ff47ae9abedf70df85d191c50e4130adbdea839 (patch) | |
| tree | 493e69933075582f0f9d4d1a850896cee12710af /sys/cddl | |
| parent | 251a95deec1d0bdb97ae02542b701f42eb54476a (diff) | |
| download | FreeBSD-src-4ff47ae9abedf70df85d191c50e4130adbdea839.zip FreeBSD-src-4ff47ae9abedf70df85d191c50e4130adbdea839.tar.gz | |
MFC r275474: Add GET LBA STATUS command support to CTL.
It is implemented for LUNs backed by ZVOLs in "dev" mode and files.
GEOM has no such API, so for LUNs backed by raw devices all LBAs will
be reported as mapped/unknown.
Sponsored by: iXsystems, Inc.
Diffstat (limited to 'sys/cddl')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c index 0451c65..e483d33 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c @@ -91,6 +91,7 @@ #include <sys/dmu_tx.h> #include <sys/zfeature.h> #include <sys/zio_checksum.h> +#include <sys/filio.h> #include <geom/geom.h> @@ -2914,6 +2915,18 @@ zvol_d_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct threa error = ENOIOCTL; break; } + case FIOSEEKHOLE: + case FIOSEEKDATA: { + off_t *off = (off_t *)data; + uint64_t noff; + boolean_t hole; + + hole = (cmd == FIOSEEKHOLE); + noff = *off; + error = dmu_offset_next(zv->zv_objset, ZVOL_OBJ, hole, &noff); + *off = noff; + break; + } default: error = ENOIOCTL; } |
