diff options
Diffstat (limited to 'sys/fs/tmpfs/tmpfs_subr.c')
| -rw-r--r-- | sys/fs/tmpfs/tmpfs_subr.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c index 4739f85..f639b09 100644 --- a/sys/fs/tmpfs/tmpfs_subr.c +++ b/sys/fs/tmpfs/tmpfs_subr.c @@ -166,6 +166,7 @@ tmpfs_alloc_node(struct tmpfs_mount *tmp, enum vtype type, char *target, dev_t rdev, struct tmpfs_node **node) { struct tmpfs_node *nnode; + vm_object_t obj; /* If the root directory of the 'tmp' file system is not yet * allocated, this must be the request to do it. */ @@ -227,9 +228,14 @@ tmpfs_alloc_node(struct tmpfs_mount *tmp, enum vtype type, break; case VREG: - nnode->tn_reg.tn_aobj = + obj = nnode->tn_reg.tn_aobj = vm_pager_allocate(OBJT_SWAP, NULL, 0, VM_PROT_DEFAULT, 0, NULL /* XXXKIB - tmpfs needs swap reservation */); + VM_OBJECT_WLOCK(obj); + /* OBJ_TMPFS is set together with the setting of vp->v_object */ + vm_object_set_flag(obj, OBJ_NOSPLIT); + vm_object_clear_flag(obj, OBJ_ONEMAPPING); + VM_OBJECT_WUNLOCK(obj); break; default: @@ -434,9 +440,11 @@ int tmpfs_alloc_vp(struct mount *mp, struct tmpfs_node *node, int lkflag, struct vnode **vpp) { - int error = 0; struct vnode *vp; + vm_object_t object; + int error; + error = 0; loop: TMPFS_NODE_LOCK(node); if ((vp = node->tn_vnode) != NULL) { @@ -506,13 +514,22 @@ loop: /* FALLTHROUGH */ case VLNK: /* FALLTHROUGH */ - case VREG: - /* FALLTHROUGH */ case VSOCK: break; case VFIFO: vp->v_op = &tmpfs_fifoop_entries; break; + case VREG: + object = node->tn_reg.tn_aobj; + VM_OBJECT_WLOCK(object); + VI_LOCK(vp); + KASSERT(vp->v_object == NULL, ("Not NULL v_object in tmpfs")); + vp->v_object = object; + object->un_pager.swp.swp_tmpfs = vp; + vm_object_set_flag(object, OBJ_TMPFS); + VI_UNLOCK(vp); + VM_OBJECT_WUNLOCK(object); + break; case VDIR: MPASS(node->tn_dir.tn_parent != NULL); if (node->tn_dir.tn_parent == node) @@ -523,7 +540,6 @@ loop: panic("tmpfs_alloc_vp: type %p %d", node, (int)node->tn_type); } - vnode_pager_setsize(vp, node->tn_size); error = insmntque(vp, mp); if (error) vp = NULL; @@ -1343,7 +1359,6 @@ retry: TMPFS_UNLOCK(tmp); node->tn_size = newsize; - vnode_pager_setsize(vp, newsize); return (0); } |
