Author: mjg
Date: Mon Dec 16 00:06:22 2019
New Revision: 355790
URL: https://svnweb.freebsd.org/changeset/base/355790
Log:
vfs: flatten vop vectors
This eliminates the following loop from all VOP calls:
while(vop != NULL && \
vop->vop_spare2 == NULL && vop->vop_bypass == NULL)
vop = vop->vop_default;
Reviewed by: jeff
Tesetd by: pho
Differential Revision: https://reviews.freebsd.org/D22738
Modified:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
head/sys/fs/autofs/autofs_vnops.c
head/sys/fs/cd9660/cd9660_vnops.c
head/sys/fs/deadfs/dead_vnops.c
head/sys/fs/devfs/devfs_vnops.c
head/sys/fs/ext2fs/ext2_vnops.c
head/sys/fs/fdescfs/fdesc_vnops.c
head/sys/fs/fifofs/fifo_vnops.c
head/sys/fs/fuse/fuse_vnops.c
head/sys/fs/msdosfs/msdosfs_vnops.c
head/sys/fs/nfsclient/nfs_clvnops.c
head/sys/fs/nullfs/null_vnops.c
head/sys/fs/pseudofs/pseudofs_vnops.c
head/sys/fs/smbfs/smbfs_vnops.c
head/sys/fs/tmpfs/tmpfs_fifoops.c
head/sys/fs/tmpfs/tmpfs_vnops.c
head/sys/fs/udf/udf_vnops.c
head/sys/fs/unionfs/union_vnops.c
head/sys/kern/uipc_mqueue.c
head/sys/kern/vfs_default.c
head/sys/kern/vfs_lookup.c
head/sys/kern/vfs_subr.c
head/sys/sys/vnode.h
head/sys/tools/vnode_if.awk
head/sys/ufs/ffs/ffs_vnops.c
head/sys/ufs/ufs/ufs_vnops.c
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c Mon Dec
16 00:04:33 2019 (r355789)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c Mon Dec
16 00:06:22 2019 (r355790)
@@ -826,6 +826,7 @@ static struct vop_vector zfsctl_ops_root = {
.vop_pathconf = zfsctl_common_pathconf,
.vop_getacl = zfsctl_common_getacl,
};
+VFS_VOP_VECTOR_REGISTER(zfsctl_ops_root);
static int
zfsctl_snapshot_zname(vnode_t *vp, const char *name, int len, char *zname)
@@ -1159,6 +1160,7 @@ static struct vop_vector zfsctl_ops_snapdir = {
.vop_pathconf = zfsctl_common_pathconf,
.vop_getacl = zfsctl_common_getacl,
};
+VFS_VOP_VECTOR_REGISTER(zfsctl_ops_snapdir);
static int
zfsctl_snapshot_inactive(ap)
@@ -1257,6 +1259,7 @@ static struct vop_vector zfsctl_ops_snapshot = {
.vop_advlockpurge = vop_stdadvlockpurge, /* called by vgone */
.vop_print = zfsctl_common_print,
};
+VFS_VOP_VECTOR_REGISTER(zfsctl_ops_snapshot);
int
zfsctl_lookup_objset(vfs_t *vfsp, uint64_t objsetid, zfsvfs_t **zfsvfsp)
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c Mon Dec
16 00:04:33 2019 (r355789)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c Mon Dec
16 00:06:22 2019 (r355790)
@@ -5995,6 +5995,7 @@ struct vop_vector zfs_vnodeops = {
.vop_unlock = vop_unlock,
.vop_islocked = vop_islocked,
};
+VFS_VOP_VECTOR_REGISTER(zfs_vnodeops);
struct vop_vector zfs_fifoops = {
.vop_default = &fifo_specops,
@@ -6012,6 +6013,7 @@ struct vop_vector zfs_fifoops = {
.vop_setacl = zfs_freebsd_setacl,
.vop_aclcheck = zfs_freebsd_aclcheck,
};
+VFS_VOP_VECTOR_REGISTER(zfs_fifoops);
/*
* special share hidden files vnode operations template
@@ -6024,3 +6026,4 @@ struct vop_vector zfs_shareops = {
.vop_fid = zfs_freebsd_fid,
.vop_pathconf = zfs_freebsd_pathconf,
};
+VFS_VOP_VECTOR_REGISTER(zfs_shareops);
Modified: head/sys/fs/autofs/autofs_vnops.c
==============================================================================
--- head/sys/fs/autofs/autofs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/autofs/autofs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -554,6 +554,7 @@ struct vop_vector autofs_vnodeops = {
.vop_write = VOP_EOPNOTSUPP,
.vop_reclaim = autofs_reclaim,
};
+VFS_VOP_VECTOR_REGISTER(autofs_vnodeops);
int
autofs_node_new(struct autofs_node *parent, struct autofs_mount *amp,
Modified: head/sys/fs/cd9660/cd9660_vnops.c
==============================================================================
--- head/sys/fs/cd9660/cd9660_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/cd9660/cd9660_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -906,6 +906,7 @@ struct vop_vector cd9660_vnodeops = {
.vop_vptofh = cd9660_vptofh,
.vop_getpages = cd9660_getpages,
};
+VFS_VOP_VECTOR_REGISTER(cd9660_vnodeops);
/*
* Special device vnode ops
@@ -920,3 +921,4 @@ struct vop_vector cd9660_fifoops = {
.vop_setattr = cd9660_setattr,
.vop_vptofh = cd9660_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(cd9660_fifoops);
Modified: head/sys/fs/deadfs/dead_vnops.c
==============================================================================
--- head/sys/fs/deadfs/dead_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/deadfs/dead_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -80,6 +80,7 @@ struct vop_vector dead_vnodeops = {
.vop_unset_text = dead_unset_text,
.vop_write = dead_write,
};
+VFS_VOP_VECTOR_REGISTER(dead_vnodeops);
static int
dead_getwritemount(struct vop_getwritemount_args *ap)
Modified: head/sys/fs/devfs/devfs_vnops.c
==============================================================================
--- head/sys/fs/devfs/devfs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/devfs/devfs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -1928,6 +1928,7 @@ static struct vop_vector devfs_vnodeops = {
.vop_symlink = devfs_symlink,
.vop_vptocnp = devfs_vptocnp,
};
+VFS_VOP_VECTOR_REGISTER(devfs_vnodeops);
/* Vops for VCHR vnodes in /dev. */
static struct vop_vector devfs_specops = {
@@ -1965,6 +1966,7 @@ static struct vop_vector devfs_specops = {
.vop_vptocnp = devfs_vptocnp,
.vop_write = dead_write,
};
+VFS_VOP_VECTOR_REGISTER(devfs_specops);
/*
* Our calling convention to the device drivers used to be that we passed
Modified: head/sys/fs/ext2fs/ext2_vnops.c
==============================================================================
--- head/sys/fs/ext2fs/ext2_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/ext2fs/ext2_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -182,6 +182,7 @@ struct vop_vector ext2_vnodeops = {
#endif /* UFS_ACL */
.vop_vptofh = ext2_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(ext2_vnodeops);
struct vop_vector ext2_fifoops = {
.vop_default = &fifo_specops,
@@ -199,6 +200,7 @@ struct vop_vector ext2_fifoops = {
.vop_write = VOP_PANIC,
.vop_vptofh = ext2_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(ext2_fifoops);
/*
* A virgin directory (no blushing please).
Modified: head/sys/fs/fdescfs/fdesc_vnops.c
==============================================================================
--- head/sys/fs/fdescfs/fdesc_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/fdescfs/fdesc_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -91,6 +91,7 @@ static struct vop_vector fdesc_vnodeops = {
.vop_reclaim = fdesc_reclaim,
.vop_setattr = fdesc_setattr,
};
+VFS_VOP_VECTOR_REGISTER(fdesc_vnodeops);
static void fdesc_insmntque_dtr(struct vnode *, void *);
static void fdesc_remove_entry(struct fdescnode *);
Modified: head/sys/fs/fifofs/fifo_vnops.c
==============================================================================
--- head/sys/fs/fifofs/fifo_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/fifofs/fifo_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -102,6 +102,7 @@ struct vop_vector fifo_specops = {
.vop_symlink = VOP_PANIC,
.vop_write = VOP_PANIC,
};
+VFS_VOP_VECTOR_REGISTER(fifo_specops);
/*
* Dispose of fifo resources.
Modified: head/sys/fs/fuse/fuse_vnops.c
==============================================================================
--- head/sys/fs/fuse/fuse_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/fuse/fuse_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -174,6 +174,7 @@ struct vop_vector fuse_fifoops = {
.vop_write = VOP_PANIC,
.vop_vptofh = fuse_vnop_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(fuse_fifoops);
struct vop_vector fuse_vnops = {
.vop_allocate = VOP_EINVAL,
@@ -223,6 +224,7 @@ struct vop_vector fuse_vnops = {
.vop_print = fuse_vnop_print,
.vop_vptofh = fuse_vnop_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(fuse_vnops);
uma_zone_t fuse_pbuf_zone;
Modified: head/sys/fs/msdosfs/msdosfs_vnops.c
==============================================================================
--- head/sys/fs/msdosfs/msdosfs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/msdosfs/msdosfs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -1962,3 +1962,4 @@ struct vop_vector msdosfs_vnodeops = {
.vop_write = msdosfs_write,
.vop_vptofh = msdosfs_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(msdosfs_vnodeops);
Modified: head/sys/fs/nfsclient/nfs_clvnops.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clvnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/nfsclient/nfs_clvnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -200,6 +200,7 @@ static struct vop_vector newnfs_vnodeops_nosig = {
.vop_listextattr = nfs_listextattr,
.vop_deleteextattr = nfs_deleteextattr,
};
+VFS_VOP_VECTOR_REGISTER(newnfs_vnodeops_nosig);
static int
nfs_vnodeops_bypass(struct vop_generic_args *a)
@@ -212,6 +213,7 @@ struct vop_vector newnfs_vnodeops = {
.vop_default = &default_vnodeops,
.vop_bypass = nfs_vnodeops_bypass,
};
+VFS_VOP_VECTOR_REGISTER(newnfs_vnodeops);
static struct vop_vector newnfs_fifoops_nosig = {
.vop_default = &fifo_specops,
@@ -227,6 +229,7 @@ static struct vop_vector newnfs_fifoops_nosig = {
.vop_setattr = nfs_setattr,
.vop_write = nfsfifo_write,
};
+VFS_VOP_VECTOR_REGISTER(newnfs_fifoops_nosig);
static int
nfs_fifoops_bypass(struct vop_generic_args *a)
@@ -239,6 +242,7 @@ struct vop_vector newnfs_fifoops = {
.vop_default = &default_vnodeops,
.vop_bypass = nfs_fifoops_bypass,
};
+VFS_VOP_VECTOR_REGISTER(newnfs_fifoops);
static int nfs_mknodrpc(struct vnode *dvp, struct vnode **vpp,
struct componentname *cnp, struct vattr *vap);
Modified: head/sys/fs/nullfs/null_vnops.c
==============================================================================
--- head/sys/fs/nullfs/null_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/nullfs/null_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -943,3 +943,4 @@ struct vop_vector null_vnodeops = {
.vop_vptofh = null_vptofh,
.vop_add_writecount = null_add_writecount,
};
+VFS_VOP_VECTOR_REGISTER(null_vnodeops);
Modified: head/sys/fs/pseudofs/pseudofs_vnops.c
==============================================================================
--- head/sys/fs/pseudofs/pseudofs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/pseudofs/pseudofs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -1095,3 +1095,4 @@ struct vop_vector pfs_vnodeops = {
.vop_write = pfs_write,
/* XXX I've probably forgotten a few that need VOP_EOPNOTSUPP */
};
+VFS_VOP_VECTOR_REGISTER(pfs_vnodeops);
Modified: head/sys/fs/smbfs/smbfs_vnops.c
==============================================================================
--- head/sys/fs/smbfs/smbfs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/smbfs/smbfs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -114,6 +114,7 @@ struct vop_vector smbfs_vnodeops = {
.vop_symlink = smbfs_symlink,
.vop_write = smbfs_write,
};
+VFS_VOP_VECTOR_REGISTER(smbfs_vnodeops);
static int
smbfs_access(ap)
Modified: head/sys/fs/tmpfs/tmpfs_fifoops.c
==============================================================================
--- head/sys/fs/tmpfs/tmpfs_fifoops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/tmpfs/tmpfs_fifoops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -75,3 +75,4 @@ struct vop_vector tmpfs_fifoop_entries = {
.vop_pathconf = tmpfs_pathconf,
.vop_print = tmpfs_print,
};
+VFS_VOP_VECTOR_REGISTER(tmpfs_fifoop_entries);
Modified: head/sys/fs/tmpfs/tmpfs_vnops.c
==============================================================================
--- head/sys/fs/tmpfs/tmpfs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/tmpfs/tmpfs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -1636,6 +1636,7 @@ struct vop_vector tmpfs_vnodeop_entries = {
.vop_unlock = vop_unlock,
.vop_islocked = vop_islocked,
};
+VFS_VOP_VECTOR_REGISTER(tmpfs_vnodeop_entries);
/*
* Same vector for mounts which do not use namecache.
@@ -1644,3 +1645,4 @@ struct vop_vector tmpfs_vnodeop_nonc_entries = {
.vop_default = &tmpfs_vnodeop_entries,
.vop_lookup = tmpfs_lookup,
};
+VFS_VOP_VECTOR_REGISTER(tmpfs_vnodeop_nonc_entries);
Modified: head/sys/fs/udf/udf_vnops.c
==============================================================================
--- head/sys/fs/udf/udf_vnops.c Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/fs/udf/udf_vnops.c Mon Dec 16 00:06:22 2019 (r355790)
@@ -97,6 +97,7 @@ static struct vop_vector udf_vnodeops = {
.vop_strategy = udf_strategy,
.vop_vptofh = udf_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(udf_vnodeops);
struct vop_vector udf_fifoops = {
.vop_default = &fifo_specops,
@@ -108,6 +109,7 @@ struct vop_vector udf_fifoops = {
.vop_setattr = udf_setattr,
.vop_vptofh = udf_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(udf_fifoops);
static MALLOC_DEFINE(M_UDFFID, "udf_fid", "UDF FileId structure");
static MALLOC_DEFINE(M_UDFDS, "udf_ds", "UDF Dirstream structure");
Modified: head/sys/fs/unionfs/union_vnops.c
==============================================================================
--- head/sys/fs/unionfs/union_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/fs/unionfs/union_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -2556,3 +2556,4 @@ struct vop_vector unionfs_vnodeops = {
.vop_vptofh = unionfs_vptofh,
.vop_add_writecount = unionfs_add_writecount,
};
+VFS_VOP_VECTOR_REGISTER(unionfs_vnodeops);
Modified: head/sys/kern/uipc_mqueue.c
==============================================================================
--- head/sys/kern/uipc_mqueue.c Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/kern/uipc_mqueue.c Mon Dec 16 00:06:22 2019 (r355790)
@@ -2690,6 +2690,7 @@ static struct vop_vector mqfs_vnodeops = {
.vop_mkdir = VOP_EOPNOTSUPP,
.vop_rmdir = VOP_EOPNOTSUPP
};
+VFS_VOP_VECTOR_REGISTER(mqfs_vnodeops);
static struct vfsops mqfs_vfsops = {
.vfs_init = mqfs_init,
Modified: head/sys/kern/vfs_default.c
==============================================================================
--- head/sys/kern/vfs_default.c Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/kern/vfs_default.c Mon Dec 16 00:06:22 2019 (r355790)
@@ -145,6 +145,7 @@ struct vop_vector default_vnodeops = {
.vop_add_writecount = vop_stdadd_writecount,
.vop_copy_file_range = vop_stdcopy_file_range,
};
+VFS_VOP_VECTOR_REGISTER(default_vnodeops);
/*
* Series of placeholder functions for various error returns for
Modified: head/sys/kern/vfs_lookup.c
==============================================================================
--- head/sys/kern/vfs_lookup.c Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/kern/vfs_lookup.c Mon Dec 16 00:06:22 2019 (r355790)
@@ -139,6 +139,10 @@ static struct vop_vector crossmp_vnodeops = {
.vop_lock1 = crossmp_vop_lock1,
.vop_unlock = crossmp_vop_unlock,
};
+/*
+ * VFS_VOP_VECTOR_REGISTER(crossmp_vnodeops) is not used here since the vnode
+ * gets allocated early. See nameiinit for the direct call below.
+ */
struct nameicap_tracker {
struct vnode *dp;
@@ -156,6 +160,7 @@ nameiinit(void *dummy __unused)
UMA_ALIGN_PTR, 0);
nt_zone = uma_zcreate("rentr", sizeof(struct nameicap_tracker),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
+ vfs_vector_op_register(&crossmp_vnodeops);
getnewvnode("crossmp", NULL, &crossmp_vnodeops, &vp_crossmp);
}
SYSINIT(vfs, SI_SUB_VFS, SI_ORDER_SECOND, nameiinit, NULL);
Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/kern/vfs_subr.c Mon Dec 16 00:06:22 2019 (r355790)
@@ -1558,6 +1558,10 @@ getnewvnode(const char *tag, struct mount *mp, struct
int error __unused;
CTR3(KTR_VFS, "%s: mp %p with tag %s", __func__, mp, tag);
+
+ KASSERT(vops->registered,
+ ("%s: not registered vector op %p\n", __func__, vops));
+
vp = NULL;
td = curthread;
if (td->td_vp_reserv > 0) {
@@ -4502,6 +4506,7 @@ static struct vop_vector sync_vnodeops = {
.vop_unlock = vop_stdunlock, /* unlock */
.vop_islocked = vop_stdislocked, /* islocked */
};
+VFS_VOP_VECTOR_REGISTER(sync_vnodeops);
/*
* Create a new filesystem syncer vnode for the specified mount point.
Modified: head/sys/sys/vnode.h
==============================================================================
--- head/sys/sys/vnode.h Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/sys/vnode.h Mon Dec 16 00:06:22 2019 (r355790)
@@ -955,6 +955,14 @@ int vn_chown(struct file *fp, uid_t uid, gid_t gid, st
void vn_fsid(struct vnode *vp, struct vattr *va);
+#include <sys/kernel.h>
+
+#define VFS_VOP_VECTOR_REGISTER(vnodeops) \
+ SYSINIT(vfs_vector_##vnodeops##_f, SI_SUB_VFS, SI_ORDER_ANY, \
+ vfs_vector_op_register, &vnodeops)
+
+void vfs_vector_op_register(struct vop_vector *vop);
+
#endif /* _KERNEL */
#endif /* !_SYS_VNODE_H_ */
Modified: head/sys/tools/vnode_if.awk
==============================================================================
--- head/sys/tools/vnode_if.awk Mon Dec 16 00:04:33 2019 (r355789)
+++ head/sys/tools/vnode_if.awk Mon Dec 16 00:06:22 2019 (r355790)
@@ -323,6 +323,7 @@ while ((getline < srcfile) > 0) {
}
if (cfile) {
+ funcarr[name] = 1;
# Print out the vop_F_vp_offsets structure. This all depends
# on naming conventions and nothing else.
printc("static int " name "_vp_offsets[] = {");
@@ -361,9 +362,6 @@ while ((getline < srcfile) > 0) {
printc("");
printc("\tVNASSERT(a->a_gen.a_desc == &" name "_desc, a->a_"
args[0]",");
printc("\t (\"Wrong a_desc in " name "(%p, %p)\", a->a_"
args[0]", a));");
- printc("\twhile(vop != NULL && \\");
- printc("\t vop->"name" == NULL && vop->vop_bypass == NULL)")
- printc("\t\tvop = vop->vop_default;")
printc("\tVNASSERT(vop != NULL, a->a_" args[0]", (\"No
"name"(%p, %p)\", a->a_" args[0]", a));")
printc("\tSDT_PROBE2(vfs, vop, " name ", entry, a->a_" args[0]
", a);\n");
for (i = 0; i < numargs; ++i)
@@ -422,9 +420,44 @@ while ((getline < srcfile) > 0) {
printc("};\n");
}
}
-
-if (pfile)
+
+if (cfile) {
+ printc("void");
+ printc("vfs_vector_op_register(struct vop_vector *orig_vop)");
+ printc("{");
+ printc("\tstruct vop_vector *vop;");
+ printc("");
+ printc("\tif (orig_vop->registered)");
+ printc("\t\tpanic(\"%s: vop_vector %p already registered\",")
+ printc("\t\t __func__, orig_vop);");
+ printc("");
+ for (name in funcarr) {
+ printc("\tvop = orig_vop;");
+ printc("\twhile (vop != NULL && \\");
+ printc("\t vop->"name" == NULL && vop->vop_bypass == NULL)")
+ printc("\t\tvop = vop->vop_default;")
+ printc("\tif (vop != NULL)");
+ printc("\t\torig_vop->"name" = vop->"name";");
+ printc("");
+ }
+ printc("\tvop = orig_vop;");
+ printc("\twhile (vop != NULL && vop->vop_bypass == NULL)")
+ printc("\t\tvop = vop->vop_default;")
+ printc("\tif (vop != NULL)");
+ printc("\t\torig_vop->vop_bypass = vop->vop_bypass;");
+ printc("");
+ printc("\torig_vop->registered = true;");
+ printc("}")
+}
+
+if (hfile) {
+ printh("void vfs_vector_op_register(struct vop_vector *orig_vop);");
+}
+
+if (pfile) {
+ printp("\tbool\tregistered;")
printp("};")
+}
if (hfile)
close(hfile);
Modified: head/sys/ufs/ffs/ffs_vnops.c
==============================================================================
--- head/sys/ufs/ffs/ffs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/ufs/ffs/ffs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -140,6 +140,7 @@ struct vop_vector ffs_vnodeops1 = {
.vop_write = ffs_write,
.vop_vptofh = ffs_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(ffs_vnodeops1);
struct vop_vector ffs_fifoops1 = {
.vop_default = &ufs_fifoops,
@@ -148,6 +149,7 @@ struct vop_vector ffs_fifoops1 = {
.vop_lock1 = ffs_lock,
.vop_vptofh = ffs_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(ffs_fifoops1);
/* Global vfs data structures for ufs. */
struct vop_vector ffs_vnodeops2 = {
@@ -168,6 +170,7 @@ struct vop_vector ffs_vnodeops2 = {
.vop_setextattr = ffs_setextattr,
.vop_vptofh = ffs_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(ffs_vnodeops2);
struct vop_vector ffs_fifoops2 = {
.vop_default = &ufs_fifoops,
@@ -184,6 +187,7 @@ struct vop_vector ffs_fifoops2 = {
.vop_setextattr = ffs_setextattr,
.vop_vptofh = ffs_vptofh,
};
+VFS_VOP_VECTOR_REGISTER(ffs_fifoops2);
/*
* Synch an open file.
Modified: head/sys/ufs/ufs/ufs_vnops.c
==============================================================================
--- head/sys/ufs/ufs/ufs_vnops.c Mon Dec 16 00:04:33 2019
(r355789)
+++ head/sys/ufs/ufs/ufs_vnops.c Mon Dec 16 00:06:22 2019
(r355790)
@@ -2771,6 +2771,7 @@ struct vop_vector ufs_vnodeops = {
.vop_aclcheck = ufs_aclcheck,
#endif
};
+VFS_VOP_VECTOR_REGISTER(ufs_vnodeops);
struct vop_vector ufs_fifoops = {
.vop_default = &fifo_specops,
@@ -2801,3 +2802,4 @@ struct vop_vector ufs_fifoops = {
.vop_aclcheck = ufs_aclcheck,
#endif
};
+VFS_VOP_VECTOR_REGISTER(ufs_fifoops);
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