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head/sys/kern/vfs_subr.c
| Show First 20 Lines • Show All 4,389 Lines • ▼ Show 20 Lines | |||||
| void | void | ||||
| vfs_msync(struct mount *mp, int flags) | vfs_msync(struct mount *mp, int flags) | ||||
| { | { | ||||
| struct vnode *vp, *mvp; | struct vnode *vp, *mvp; | ||||
| struct vm_object *obj; | struct vm_object *obj; | ||||
| CTR2(KTR_VFS, "%s: mp %p", __func__, mp); | CTR2(KTR_VFS, "%s: mp %p", __func__, mp); | ||||
| vnlru_return_batch(mp); | |||||
| MNT_VNODE_FOREACH_ACTIVE(vp, mp, mvp) { | MNT_VNODE_FOREACH_ACTIVE(vp, mp, mvp) { | ||||
| obj = vp->v_object; | obj = vp->v_object; | ||||
| if (obj != NULL && (obj->flags & OBJ_MIGHTBEDIRTY) != 0 && | if (obj != NULL && (obj->flags & OBJ_MIGHTBEDIRTY) != 0 && | ||||
| (flags == MNT_WAIT || VOP_ISLOCKED(vp) == 0)) { | (flags == MNT_WAIT || VOP_ISLOCKED(vp) == 0)) { | ||||
| if (!vget(vp, | if (!vget(vp, | ||||
| LK_EXCLUSIVE | LK_RETRY | LK_INTERLOCK, | LK_EXCLUSIVE | LK_RETRY | LK_INTERLOCK, | ||||
| curthread)) { | curthread)) { | ||||
| if (vp->v_vflag & VV_NOSYNC) { /* unlinked */ | if (vp->v_vflag & VV_NOSYNC) { /* unlinked */ | ||||
| ▲ Show 20 Lines • Show All 215 Lines • ▼ Show 20 Lines | sync_fsync(struct vop_fsync_args *ap) | ||||
| */ | */ | ||||
| if (vfs_busy(mp, MBF_NOWAIT) != 0) | if (vfs_busy(mp, MBF_NOWAIT) != 0) | ||||
| return (0); | return (0); | ||||
| if (vn_start_write(NULL, &mp, V_NOWAIT) != 0) { | if (vn_start_write(NULL, &mp, V_NOWAIT) != 0) { | ||||
| vfs_unbusy(mp); | vfs_unbusy(mp); | ||||
| return (0); | return (0); | ||||
| } | } | ||||
| save = curthread_pflags_set(TDP_SYNCIO); | save = curthread_pflags_set(TDP_SYNCIO); | ||||
| /* | |||||
| * The filesystem at hand may be idle with free vnodes stored in the | |||||
| * batch. Return them instead of letting them stay there indefinitely. | |||||
| */ | |||||
| vnlru_return_batch(mp); | |||||
| vfs_msync(mp, MNT_NOWAIT); | vfs_msync(mp, MNT_NOWAIT); | ||||
| error = VFS_SYNC(mp, MNT_LAZY); | error = VFS_SYNC(mp, MNT_LAZY); | ||||
| curthread_pflags_restore(save); | curthread_pflags_restore(save); | ||||
| vn_finished_write(mp); | vn_finished_write(mp); | ||||
| vfs_unbusy(mp); | vfs_unbusy(mp); | ||||
| return (error); | return (error); | ||||
| } | } | ||||
| ▲ Show 20 Lines • Show All 1,459 Lines • Show Last 20 Lines | |||||