diff options
-rw-r--r-- | sys/fs/tmpfs/tmpfs_subr.c | 10 | ||||
-rw-r--r-- | sys/kern/kern_exec.c | 11 | ||||
-rw-r--r-- | sys/kern/uipc_shm.c | 18 | ||||
-rw-r--r-- | sys/kern/uipc_syscalls.c | 5 | ||||
-rw-r--r-- | sys/vm/vm_fault.c | 13 | ||||
-rw-r--r-- | sys/vm/vm_glue.c | 17 | ||||
-rw-r--r-- | sys/vm/vm_object.c | 8 |
7 files changed, 26 insertions, 56 deletions
diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c index 2e35582..5e2a825 100644 --- a/sys/fs/tmpfs/tmpfs_subr.c +++ b/sys/fs/tmpfs/tmpfs_subr.c @@ -1320,7 +1320,7 @@ tmpfs_reg_resize(struct vnode *vp, off_t newsize, boolean_t ignerr) struct tmpfs_mount *tmp; struct tmpfs_node *node; vm_object_t uobj; - vm_page_t m, ma[1]; + vm_page_t m; vm_pindex_t idx, newpages, oldpages; off_t oldsize; int base, rv; @@ -1367,11 +1367,9 @@ retry: VM_WAIT; VM_OBJECT_WLOCK(uobj); goto retry; - } else if (m->valid != VM_PAGE_BITS_ALL) { - ma[0] = m; - rv = vm_pager_get_pages(uobj, ma, 1, 0); - m = vm_page_lookup(uobj, idx); - } else + } else if (m->valid != VM_PAGE_BITS_ALL) + rv = vm_pager_get_pages(uobj, &m, 1, 0); + else /* A cached page was reactivated. */ rv = VM_PAGER_OK; vm_page_lock(m); diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index d3ae4f0..375e644 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -966,13 +966,10 @@ exec_map_first_page(imgp) } initial_pagein = i; rv = vm_pager_get_pages(object, ma, initial_pagein, 0); - ma[0] = vm_page_lookup(object, 0); - if ((rv != VM_PAGER_OK) || (ma[0] == NULL)) { - if (ma[0] != NULL) { - vm_page_lock(ma[0]); - vm_page_free(ma[0]); - vm_page_unlock(ma[0]); - } + if (rv != VM_PAGER_OK) { + vm_page_lock(ma[0]); + vm_page_free(ma[0]); + vm_page_unlock(ma[0]); VM_OBJECT_WUNLOCK(object); return (EIO); } diff --git a/sys/kern/uipc_shm.c b/sys/kern/uipc_shm.c index 3419c51..fb84330 100644 --- a/sys/kern/uipc_shm.c +++ b/sys/kern/uipc_shm.c @@ -189,14 +189,6 @@ uiomove_object_page(vm_object_t obj, size_t len, struct uio *uio) if (m->valid != VM_PAGE_BITS_ALL) { if (vm_pager_has_page(obj, idx, NULL, NULL)) { rv = vm_pager_get_pages(obj, &m, 1, 0); - m = vm_page_lookup(obj, idx); - if (m == NULL) { - printf( - "uiomove_object: vm_obj %p idx %jd null lookup rv %d\n", - obj, idx, rv); - VM_OBJECT_WUNLOCK(obj); - return (EIO); - } if (rv != VM_PAGER_OK) { printf( "uiomove_object: vm_obj %p idx %jd valid %x pager error %d\n", @@ -423,7 +415,7 @@ static int shm_dotruncate(struct shmfd *shmfd, off_t length) { vm_object_t object; - vm_page_t m, ma[1]; + vm_page_t m; vm_pindex_t idx, nobjsize; vm_ooffset_t delta; int base, rv; @@ -465,12 +457,10 @@ retry: VM_WAIT; VM_OBJECT_WLOCK(object); goto retry; - } else if (m->valid != VM_PAGE_BITS_ALL) { - ma[0] = m; - rv = vm_pager_get_pages(object, ma, 1, + } else if (m->valid != VM_PAGE_BITS_ALL) + rv = vm_pager_get_pages(object, &m, 1, 0); - m = vm_page_lookup(object, idx); - } else + else /* A cached page was reactivated. */ rv = VM_PAGER_OK; vm_page_lock(m); diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c index 1efe3da..e3557ba 100644 --- a/sys/kern/uipc_syscalls.c +++ b/sys/kern/uipc_syscalls.c @@ -2026,10 +2026,7 @@ sendfile_readpage(vm_object_t obj, struct vnode *vp, int nd, if (vm_pager_has_page(obj, pindex, NULL, NULL)) { rv = vm_pager_get_pages(obj, &m, 1, 0); SFSTAT_INC(sf_iocnt); - m = vm_page_lookup(obj, pindex); - if (m == NULL) - error = EIO; - else if (rv != VM_PAGER_OK) { + if (rv != VM_PAGER_OK) { vm_page_lock(m); vm_page_free(m); vm_page_unlock(m); diff --git a/sys/vm/vm_fault.c b/sys/vm/vm_fault.c index 0c84d44..7391465 100644 --- a/sys/vm/vm_fault.c +++ b/sys/vm/vm_fault.c @@ -679,19 +679,12 @@ vnode_locked: /* * Found the page. Leave it busy while we play * with it. - */ - - /* - * Relookup in case pager changed page. Pager + * + * Pager could have changed the page. Pager * is responsible for disposition of old page * if moved. */ - fs.m = vm_page_lookup(fs.object, fs.pindex); - if (!fs.m) { - unlock_and_deallocate(&fs); - goto RetryFault; - } - + fs.m = marray[reqpage]; hardfault++; break; /* break to PAGE HAS BEEN FOUND */ } diff --git a/sys/vm/vm_glue.c b/sys/vm/vm_glue.c index c9ee890..1ff17c2 100644 --- a/sys/vm/vm_glue.c +++ b/sys/vm/vm_glue.c @@ -230,7 +230,7 @@ vsunlock(void *addr, size_t len) static vm_page_t vm_imgact_hold_page(vm_object_t object, vm_ooffset_t offset) { - vm_page_t m, ma[1]; + vm_page_t m; vm_pindex_t pindex; int rv; @@ -238,11 +238,7 @@ vm_imgact_hold_page(vm_object_t object, vm_ooffset_t offset) pindex = OFF_TO_IDX(offset); m = vm_page_grab(object, pindex, VM_ALLOC_NORMAL); if (m->valid != VM_PAGE_BITS_ALL) { - ma[0] = m; - rv = vm_pager_get_pages(object, ma, 1, 0); - m = vm_page_lookup(object, pindex); - if (m == NULL) - goto out; + rv = vm_pager_get_pages(object, &m, 1, 0); if (rv != VM_PAGER_OK) { vm_page_lock(m); vm_page_free(m); @@ -571,7 +567,7 @@ vm_thread_swapin(struct thread *td) { vm_object_t ksobj; vm_page_t ma[KSTACK_MAX_PAGES]; - int i, j, k, pages, rv; + int i, j, pages, rv; pages = td->td_kstack_pages; ksobj = td->td_kstack_obj; @@ -593,9 +589,12 @@ vm_thread_swapin(struct thread *td) if (rv != VM_PAGER_OK) panic("vm_thread_swapin: cannot get kstack for proc: %d", td->td_proc->p_pid); + /* + * All pages in the array are in place, due to the + * pager is always the swap pager, which doesn't + * free or remove wired non-req pages from object. + */ vm_object_pip_wakeup(ksobj); - for (k = i; k < j; k++) - ma[k] = vm_page_lookup(ksobj, k); vm_page_xunbusy(ma[i]); } else if (vm_page_xbusied(ma[i])) vm_page_xunbusy(ma[i]); diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index e240b67..c7f3153 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -2046,7 +2046,7 @@ vm_object_page_cache(vm_object_t object, vm_pindex_t start, vm_pindex_t end) boolean_t vm_object_populate(vm_object_t object, vm_pindex_t start, vm_pindex_t end) { - vm_page_t m, ma[1]; + vm_page_t m; vm_pindex_t pindex; int rv; @@ -2054,11 +2054,7 @@ vm_object_populate(vm_object_t object, vm_pindex_t start, vm_pindex_t end) for (pindex = start; pindex < end; pindex++) { m = vm_page_grab(object, pindex, VM_ALLOC_NORMAL); if (m->valid != VM_PAGE_BITS_ALL) { - ma[0] = m; - rv = vm_pager_get_pages(object, ma, 1, 0); - m = vm_page_lookup(object, pindex); - if (m == NULL) - break; + rv = vm_pager_get_pages(object, &m, 1, 0); if (rv != VM_PAGER_OK) { vm_page_lock(m); vm_page_free(m); |