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Implement SEEK_HOLE/SEEK_DATA for UFS.

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MFC after:	2 weeks
This commit is contained in:
Konstantin Belousov 2012-05-26 05:29:53 +00:00
parent 292520f710
commit 6ee10a96c0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=236044
1 changed files with 20 additions and 0 deletions
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20
sys/ufs/ufs/ufs_vnops.c
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@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
#include <sys/namei.h>
#include <sys/kernel.h>
#include <sys/fcntl.h>
#include <sys/filio.h>
#include <sys/stat.h>
#include <sys/bio.h>
#include <sys/buf.h>
@ -102,6 +103,7 @@ static int ufs_chown(struct vnode *, uid_t, gid_t, struct ucred *, struct thread
static vop_close_t ufs_close;
static vop_create_t ufs_create;
static vop_getattr_t ufs_getattr;
static vop_ioctl_t ufs_ioctl;
static vop_link_t ufs_link;
static int ufs_makeinode(int mode, struct vnode *, struct vnode **, struct componentname *);
static vop_markatime_t ufs_markatime;
@ -2504,6 +2506,9 @@ ufs_pathconf(ap)
*ap->a_retval = 0;
#endif
break;
case _PC_MIN_HOLE_SIZE:
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
break;
case _PC_ASYNC_IO:
/* _PC_ASYNC_IO should have been handled by upper layers. */
KASSERT(0, ("_PC_ASYNC_IO should not get here"));
@ -2737,6 +2742,20 @@ ufs_makeinode(mode, dvp, vpp, cnp)
return (error);
}
static int
ufs_ioctl(struct vop_ioctl_args *ap)
{
switch (ap->a_command) {
case FIOSEEKDATA:
case FIOSEEKHOLE:
return (vn_bmap_seekhole(ap->a_vp, ap->a_command,
(off_t *)ap->a_data, ap->a_cred));
default:
return (ENOTTY);
}
}
/* Global vfs data structures for ufs. */
struct vop_vector ufs_vnodeops = {
.vop_default = &default_vnodeops,
@ -2751,6 +2770,7 @@ struct vop_vector ufs_vnodeops = {
.vop_create = ufs_create,
.vop_getattr = ufs_getattr,
.vop_inactive = ufs_inactive,
.vop_ioctl = ufs_ioctl,
.vop_link = ufs_link,
.vop_lookup = vfs_cache_lookup,
.vop_markatime = ufs_markatime,