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Code Issues Releases Activity

o Scatter vn_start_write() and vn_finished_write() through ACL code so

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that it interacts properly with snapshotting.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
This commit is contained in:
Robert Watson 2002-02-04 17:58:15 +00:00
parent b1668754dc
commit 4e1123c738
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=90202
3 changed files with 30 additions and 9 deletions
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13
sys/kern/kern_acl.c
View File

@ -30,9 +30,6 @@
/*
* Developed by the TrustedBSD Project.
* Support for POSIX.1e access control lists.
*
* XXX: When vn_start_write() was scattered throughout the kernel, it
* was not scattered here for some reason. It needs to be.
*/
#include "opt_cap.h"
@ -573,15 +570,20 @@ vacl_set_acl(struct thread *td, struct vnode *vp, acl_type_t type,
struct acl *aclp)
{
struct acl inkernacl;
struct mount *mp;
int error;
error = copyin(aclp, &inkernacl, sizeof(struct acl));
if (error)
return(error);
error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
if (error != 0)
return (error);
VOP_LEASE(vp, td, td->td_proc->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_SETACL(vp, type, &inkernacl, td->td_proc->p_ucred, td);
VOP_UNLOCK(vp, 0, td);
vn_finished_write(mp);
return(error);
}
@ -610,13 +612,18 @@ vacl_get_acl(struct thread *td, struct vnode *vp, acl_type_t type,
static int
vacl_delete(struct thread *td, struct vnode *vp, acl_type_t type)
{
struct mount *mp;
int error;
error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
if (error)
return (error);
VOP_LEASE(vp, td, td->td_proc->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_SETACL(vp, ACL_TYPE_DEFAULT, 0, td->td_proc->p_ucred,
td);
VOP_UNLOCK(vp, 0, td);
vn_finished_write(mp);
return (error);
}

13
sys/kern/subr_acl_posix1e.c
View File

@ -30,9 +30,6 @@
/*
* Developed by the TrustedBSD Project.
* Support for POSIX.1e access control lists.
*
* XXX: When vn_start_write() was scattered throughout the kernel, it
* was not scattered here for some reason. It needs to be.
*/
#include "opt_cap.h"
@ -573,15 +570,20 @@ vacl_set_acl(struct thread *td, struct vnode *vp, acl_type_t type,
struct acl *aclp)
{
struct acl inkernacl;
struct mount *mp;
int error;
error = copyin(aclp, &inkernacl, sizeof(struct acl));
if (error)
return(error);
error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
if (error != 0)
return (error);
VOP_LEASE(vp, td, td->td_proc->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_SETACL(vp, type, &inkernacl, td->td_proc->p_ucred, td);
VOP_UNLOCK(vp, 0, td);
vn_finished_write(mp);
return(error);
}
@ -610,13 +612,18 @@ vacl_get_acl(struct thread *td, struct vnode *vp, acl_type_t type,
static int
vacl_delete(struct thread *td, struct vnode *vp, acl_type_t type)
{
struct mount *mp;
int error;
error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
if (error)
return (error);
VOP_LEASE(vp, td, td->td_proc->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_SETACL(vp, ACL_TYPE_DEFAULT, 0, td->td_proc->p_ucred,
td);
VOP_UNLOCK(vp, 0, td);
vn_finished_write(mp);
return (error);
}

13
sys/kern/vfs_acl.c
View File

@ -30,9 +30,6 @@
/*
* Developed by the TrustedBSD Project.
* Support for POSIX.1e access control lists.
*
* XXX: When vn_start_write() was scattered throughout the kernel, it
* was not scattered here for some reason. It needs to be.
*/
#include "opt_cap.h"
@ -573,15 +570,20 @@ vacl_set_acl(struct thread *td, struct vnode *vp, acl_type_t type,
struct acl *aclp)
{
struct acl inkernacl;
struct mount *mp;
int error;
error = copyin(aclp, &inkernacl, sizeof(struct acl));
if (error)
return(error);
error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
if (error != 0)
return (error);
VOP_LEASE(vp, td, td->td_proc->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_SETACL(vp, type, &inkernacl, td->td_proc->p_ucred, td);
VOP_UNLOCK(vp, 0, td);
vn_finished_write(mp);
return(error);
}
@ -610,13 +612,18 @@ vacl_get_acl(struct thread *td, struct vnode *vp, acl_type_t type,
static int
vacl_delete(struct thread *td, struct vnode *vp, acl_type_t type)
{
struct mount *mp;
int error;
error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
if (error)
return (error);
VOP_LEASE(vp, td, td->td_proc->p_ucred, LEASE_WRITE);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_SETACL(vp, ACL_TYPE_DEFAULT, 0, td->td_proc->p_ucred,
td);
VOP_UNLOCK(vp, 0, td);
vn_finished_write(mp);
return (error);
}