diff options
Diffstat (limited to 'sys/fs/nfsclient/nfs_clbio.c')
| -rw-r--r-- | sys/fs/nfsclient/nfs_clbio.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/sys/fs/nfsclient/nfs_clbio.c b/sys/fs/nfsclient/nfs_clbio.c index 53ba7efe418f..5647868011ac 100644 --- a/sys/fs/nfsclient/nfs_clbio.c +++ b/sys/fs/nfsclient/nfs_clbio.c @@ -101,6 +101,10 @@ ncl_getpages(struct vop_getpages_args *ap) nmp = VFSTONFS(vp->v_mount); pages = ap->a_m; count = ap->a_count; + if (ap->a_rbehind) + *ap->a_rbehind = 0; + if (ap->a_rahead) + *ap->a_rahead = 0; if ((object = vp->v_object) == NULL) { ncl_printf("nfs_getpages: called with non-merged cache vnode??\n"); @@ -132,12 +136,18 @@ ncl_getpages(struct vop_getpages_args *ap) * If the requested page is partially valid, just return it and * allow the pager to zero-out the blanks. Partially valid pages * can only occur at the file EOF. + * + * XXXGL: is that true for NFS, where short read can occur??? */ - if (pages[ap->a_reqpage]->valid != 0) { - vm_pager_free_nonreq(object, pages, ap->a_reqpage, npages, - FALSE); - return (VM_PAGER_OK); + VM_OBJECT_WLOCK(object); + if (pages[npages - 1]->valid != 0) { + if (--npages == 0) { + VM_OBJECT_WUNLOCK(object); + return (VM_PAGER_OK); + } + count = npages << PAGE_SHIFT; } + VM_OBJECT_WUNLOCK(object); /* * We use only the kva address for the buffer, but this is extremely @@ -167,8 +177,6 @@ ncl_getpages(struct vop_getpages_args *ap) if (error && (uio.uio_resid == count)) { ncl_printf("nfs_getpages: error %d\n", error); - vm_pager_free_nonreq(object, pages, ap->a_reqpage, npages, - FALSE); return (VM_PAGER_ERROR); } @@ -212,8 +220,6 @@ ncl_getpages(struct vop_getpages_args *ap) */ ; } - if (i != ap->a_reqpage) - vm_page_readahead_finish(m); } VM_OBJECT_WUNLOCK(object); return (0); |