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Implement SEEK_HOLE/SEEK_DATA for ext2fs.

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Merged from r236044 on UFS.

MFC after:	3 days
This commit is contained in:
Pedro F. Giffuni 2013-07-07 15:51:28 +00:00
parent 9afdeb10e4
commit bdf1d79884
1 changed files with 20 additions and 0 deletions
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20
sys/fs/ext2fs/ext2_vnops.c
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@ -48,6 +48,7 @@
#include <sys/systm.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>
@ -92,6 +93,7 @@ static vop_close_t ext2_close;
static vop_create_t ext2_create;
static vop_fsync_t ext2_fsync;
static vop_getattr_t ext2_getattr;
static vop_ioctl_t ext2_ioctl;
static vop_link_t ext2_link;
static vop_mkdir_t ext2_mkdir;
static vop_mknod_t ext2_mknod;
@ -122,6 +124,7 @@ struct vop_vector ext2_vnodeops = {
.vop_fsync = ext2_fsync,
.vop_getattr = ext2_getattr,
.vop_inactive = ext2_inactive,
.vop_ioctl = ext2_ioctl,
.vop_link = ext2_link,
.vop_lookup = vfs_cache_lookup,
.vop_mkdir = ext2_mkdir,
@ -1427,6 +1430,9 @@ ext2_pathconf(struct vop_pathconf_args *ap)
case _PC_NO_TRUNC:
*ap->a_retval = 1;
return (0);
case _PC_MIN_HOLE_SIZE:
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
return(0);
default:
return (EINVAL);
}
@ -1702,6 +1708,20 @@ ext2_read(struct vop_read_args *ap)
return (error);
}
static int
ext2_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);
}
}
/*
* Vnode op for writing.
*/