d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Now that vfs_markatime() no longer requires an exclusive lock due to

Browse Source 
the VOP_MARKATIME() changes, use a shared vnode lock for mmap().

Submitted by:	ups
This commit is contained in:
jhb 2009-01-21 14:43:35 +00:00
parent 47455a7b41
commit dc43531891
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/vm/vm_mmap.c
View File

@ -1160,7 +1160,7 @@ vm_mmap_vnode(struct thread *td, vm_size_t objsize,
mp = vp->v_mount;
cred = td->td_ucred;
vfslocked = VFS_LOCK_GIANT(mp);
if ((error = vget(vp, LK_EXCLUSIVE, td)) != 0) {
if ((error = vget(vp, LK_SHARED, td)) != 0) {
VFS_UNLOCK_GIANT(vfslocked);
return (error);
}
@ -1177,7 +1177,7 @@ vm_mmap_vnode(struct thread *td, vm_size_t objsize,
if (obj->handle != vp) {
vput(vp);
vp = (struct vnode*)obj->handle;
vget(vp, LK_EXCLUSIVE, td);
vget(vp, LK_SHARED, td);
}
type = OBJT_VNODE;
handle = vp;