diff options
| author | kib <kib@FreeBSD.org> | 2012-10-22 17:50:54 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2012-10-22 17:50:54 +0000 |
| commit | 560aa751e0f5cfef868bdf3fab01cdbc5169ef82 (patch) | |
| tree | 6e9ef0a47c5e91d26227820c50c9767e84550821 /sys/kern/kern_proc.c | |
| parent | ca71b68ea40c83f641d6485e027368568f244197 (diff) | |
| download | FreeBSD-src-560aa751e0f5cfef868bdf3fab01cdbc5169ef82.zip FreeBSD-src-560aa751e0f5cfef868bdf3fab01cdbc5169ef82.tar.gz | |
Remove the support for using non-mpsafe filesystem modules.
In particular, do not lock Giant conditionally when calling into the
filesystem module, remove the VFS_LOCK_GIANT() and related
macros. Stop handling buffers belonging to non-mpsafe filesystems.
The VFS_VERSION is bumped to indicate the interface change which does
not result in the interface signatures changes.
Conducted and reviewed by: attilio
Tested by: pho
Diffstat (limited to 'sys/kern/kern_proc.c')
| -rw-r--r-- | sys/kern/kern_proc.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c index e54331e..8ee043e 100644 --- a/sys/kern/kern_proc.c +++ b/sys/kern/kern_proc.c @@ -1873,7 +1873,7 @@ sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS) struct proc *p; struct vnode *vp; char *retbuf, *freebuf; - int error, vfslocked; + int error; if (arglen != 1) return (EINVAL); @@ -1895,9 +1895,7 @@ sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS) if (*pidp != -1) PROC_UNLOCK(p); error = vn_fullpath(req->td, vp, &retbuf, &freebuf); - vfslocked = VFS_LOCK_GIANT(vp->v_mount); vrele(vp); - VFS_UNLOCK_GIANT(vfslocked); if (error) return (error); error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1); @@ -1964,7 +1962,6 @@ sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS) entry = entry->next) { vm_object_t obj, tobj, lobj; vm_offset_t addr; - int vfslocked; if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) continue; @@ -2061,14 +2058,12 @@ sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS) vn_fullpath(curthread, vp, &fullpath, &freepath); cred = curthread->td_ucred; - vfslocked = VFS_LOCK_GIANT(vp->v_mount); vn_lock(vp, LK_SHARED | LK_RETRY); if (VOP_GETATTR(vp, &va, cred) == 0) { kve->kve_fileid = va.va_fileid; kve->kve_fsid = va.va_fsid; } vput(vp); - VFS_UNLOCK_GIANT(vfslocked); } } else { kve->kve_type = KVME_TYPE_NONE; @@ -2134,7 +2129,7 @@ sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS) vm_object_t obj, tobj, lobj; vm_offset_t addr; vm_paddr_t locked_pa; - int vfslocked, mincoreinfo; + int mincoreinfo; if (entry->eflags & MAP_ENTRY_IS_SUB_MAP) continue; @@ -2239,7 +2234,6 @@ sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS) &freepath); kve->kve_vn_type = vntype_to_kinfo(vp->v_type); cred = curthread->td_ucred; - vfslocked = VFS_LOCK_GIANT(vp->v_mount); vn_lock(vp, LK_SHARED | LK_RETRY); if (VOP_GETATTR(vp, &va, cred) == 0) { kve->kve_vn_fileid = va.va_fileid; @@ -2251,7 +2245,6 @@ sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS) kve->kve_status = KF_ATTR_VALID; } vput(vp); - VFS_UNLOCK_GIANT(vfslocked); } } else { kve->kve_type = KVME_TYPE_NONE; |
