| fuse_vnops.c (292386) | fuse_vnops.c (298806) |
|---|---|
| 1/* 2 * Copyright (c) 2007-2009 Google Inc. and Amit Singh 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * --- 40 unchanged lines hidden (view full) --- 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 */ 55 56#include <sys/cdefs.h> | 1/* 2 * Copyright (c) 2007-2009 Google Inc. and Amit Singh 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * --- 40 unchanged lines hidden (view full) --- 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 */ 55 56#include <sys/cdefs.h> |
| 57__FBSDID("$FreeBSD: head/sys/fs/fuse/fuse_vnops.c 292386 2015-12-16 23:48:50Z glebius $"); | 57__FBSDID("$FreeBSD: head/sys/fs/fuse/fuse_vnops.c 298806 2016-04-29 20:51:24Z pfg $"); |
| 58 59#include <sys/types.h> 60#include <sys/module.h> 61#include <sys/systm.h> 62#include <sys/errno.h> 63#include <sys/param.h> 64#include <sys/kernel.h> 65#include <sys/conf.h> --- 956 unchanged lines hidden (view full) --- 1022 * do the access check just after fetching 1023 * the inode and its attributes from the 1024 * daemon? Why bother with producing the 1025 * corresponding vnode at all if something 1026 * is not OK? We know what's the deal as 1027 * soon as we get those attrs... There is 1028 * one bit of info though not given us by 1029 * the daemon: whether his response is | 58 59#include <sys/types.h> 60#include <sys/module.h> 61#include <sys/systm.h> 62#include <sys/errno.h> 63#include <sys/param.h> 64#include <sys/kernel.h> 65#include <sys/conf.h> --- 956 unchanged lines hidden (view full) --- 1022 * do the access check just after fetching 1023 * the inode and its attributes from the 1024 * daemon? Why bother with producing the 1025 * corresponding vnode at all if something 1026 * is not OK? We know what's the deal as 1027 * soon as we get those attrs... There is 1028 * one bit of info though not given us by 1029 * the daemon: whether his response is |
| 1030 * authorative or not... His response should | 1030 * authoritative or not... His response should |
| 1031 * be ignored if something is mounted over 1032 * the dir in question. But that can be 1033 * known only by having the vnode... 1034 */ 1035 int tmpvtype = vnode_vtype(*vpp); 1036 1037 bzero(&facp, sizeof(facp)); 1038 /*the early perm check hack */ --- 730 unchanged lines hidden (view full) --- 1769 */ 1770 VM_OBJECT_WLOCK(vp->v_object); 1771 if (pages[npages - 1]->valid != 0 && --npages == 0) 1772 goto out; 1773 VM_OBJECT_WUNLOCK(vp->v_object); 1774 1775 /* 1776 * We use only the kva address for the buffer, but this is extremely | 1031 * be ignored if something is mounted over 1032 * the dir in question. But that can be 1033 * known only by having the vnode... 1034 */ 1035 int tmpvtype = vnode_vtype(*vpp); 1036 1037 bzero(&facp, sizeof(facp)); 1038 /*the early perm check hack */ --- 730 unchanged lines hidden (view full) --- 1769 */ 1770 VM_OBJECT_WLOCK(vp->v_object); 1771 if (pages[npages - 1]->valid != 0 && --npages == 0) 1772 goto out; 1773 VM_OBJECT_WUNLOCK(vp->v_object); 1774 1775 /* 1776 * We use only the kva address for the buffer, but this is extremely |
| 1777 * convienient and fast. | 1777 * convenient and fast. |
| 1778 */ 1779 bp = getpbuf(&fuse_pbuf_freecnt); 1780 1781 kva = (vm_offset_t)bp->b_data; 1782 pmap_qenter(kva, pages, npages); 1783 PCPU_INC(cnt.v_vnodein); 1784 PCPU_ADD(cnt.v_vnodepgsin, npages); 1785 --- 44 unchanged lines hidden (view full) --- 1830 * Read operation filled a partial page. 1831 */ 1832 m->valid = 0; 1833 vm_page_set_valid_range(m, 0, size - toff); 1834 KASSERT(m->dirty == 0, 1835 ("fuse_getpages: page %p is dirty", m)); 1836 } else { 1837 /* | 1778 */ 1779 bp = getpbuf(&fuse_pbuf_freecnt); 1780 1781 kva = (vm_offset_t)bp->b_data; 1782 pmap_qenter(kva, pages, npages); 1783 PCPU_INC(cnt.v_vnodein); 1784 PCPU_ADD(cnt.v_vnodepgsin, npages); 1785 --- 44 unchanged lines hidden (view full) --- 1830 * Read operation filled a partial page. 1831 */ 1832 m->valid = 0; 1833 vm_page_set_valid_range(m, 0, size - toff); 1834 KASSERT(m->dirty == 0, 1835 ("fuse_getpages: page %p is dirty", m)); 1836 } else { 1837 /* |
| 1838 * Read operation was short. If no error occured | 1838 * Read operation was short. If no error occurred |
| 1839 * we may have hit a zero-fill section. We simply 1840 * leave valid set to 0. 1841 */ 1842 ; 1843 } 1844 } 1845 fuse_vm_page_unlock_queues(); 1846out: --- 56 unchanged lines hidden (view full) --- 1903 1904 if (offset + count > fsize) { 1905 count = fsize - offset; 1906 if (count < 0) 1907 count = 0; 1908 } 1909 /* 1910 * We use only the kva address for the buffer, but this is extremely | 1839 * we may have hit a zero-fill section. We simply 1840 * leave valid set to 0. 1841 */ 1842 ; 1843 } 1844 } 1845 fuse_vm_page_unlock_queues(); 1846out: --- 56 unchanged lines hidden (view full) --- 1903 1904 if (offset + count > fsize) { 1905 count = fsize - offset; 1906 if (count < 0) 1907 count = 0; 1908 } 1909 /* 1910 * We use only the kva address for the buffer, but this is extremely |
| 1911 * convienient and fast. | 1911 * convenient and fast. |
| 1912 */ 1913 bp = getpbuf(&fuse_pbuf_freecnt); 1914 1915 kva = (vm_offset_t)bp->b_data; 1916 pmap_qenter(kva, pages, npages); 1917 PCPU_INC(cnt.v_vnodeout); 1918 PCPU_ADD(cnt.v_vnodepgsout, count); 1919 --- 45 unchanged lines hidden --- | 1912 */ 1913 bp = getpbuf(&fuse_pbuf_freecnt); 1914 1915 kva = (vm_offset_t)bp->b_data; 1916 pmap_qenter(kva, pages, npages); 1917 PCPU_INC(cnt.v_vnodeout); 1918 PCPU_ADD(cnt.v_vnodepgsout, count); 1919 --- 45 unchanged lines hidden --- |