9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
29 */
30
31 #include <sys/types.h>
32 #include <sys/param.h>
33 #include <sys/t_lock.h>
34 #include <sys/systm.h>
35 #include <sys/sysmacros.h>
36 #include <sys/user.h>
37 #include <sys/time.h>
38 #include <sys/vfs.h>
39 #include <sys/vfs_opreg.h>
40 #include <sys/vnode.h>
41 #include <sys/file.h>
42 #include <sys/fcntl.h>
43 #include <sys/flock.h>
44 #include <sys/kmem.h>
45 #include <sys/uio.h>
46 #include <sys/errno.h>
47 #include <sys/stat.h>
48 #include <sys/cred.h>
1792 rw_enter(&tp->tn_contents, RW_WRITER);
1793 /* Size may have changed when lock was dropped */
1794 if (off + len > tp->tn_size + PAGEOFFSET) {
1795 err = EFAULT;
1796 goto out;
1797 }
1798 }
1799 for (toff = (anoff_t)off; toff < (anoff_t)off + len;
1800 toff += PAGESIZE) {
1801 if (anon_get_ptr(tp->tn_anon, btop(toff)) == NULL) {
1802 /* XXX - may allocate mem w. write lock held */
1803 (void) anon_set_ptr(tp->tn_anon, btop(toff),
1804 anon_alloc(vp, toff), ANON_SLEEP);
1805 tp->tn_nblocks++;
1806 }
1807 }
1808 rw_downgrade(&tp->tn_contents);
1809 }
1810
1811
1812 if (len <= PAGESIZE)
1813 err = tmp_getapage(vp, (u_offset_t)off, len, protp, pl, plsz,
1814 seg, addr, rw, cr);
1815 else
1816 err = pvn_getpages(tmp_getapage, vp, (u_offset_t)off, len,
1817 protp, pl, plsz, seg, addr, rw, cr);
1818
1819 gethrestime(&now);
1820 tp->tn_atime = now;
1821 if (rw == S_WRITE)
1822 tp->tn_mtime = now;
1823
1824 out:
1825 rw_exit(&tp->tn_contents);
1826 return (err);
1827 }
1828
1829 /*
1830 * Called from pvn_getpages or swap_getpage to get a particular page.
1831 */
1832 /*ARGSUSED*/
1833 static int
1834 tmp_getapage(
1835 struct vnode *vp,
1836 u_offset_t off,
1837 size_t len,
1838 uint_t *protp,
1839 page_t *pl[],
1840 size_t plsz,
1841 struct seg *seg,
1842 caddr_t addr,
1843 enum seg_rw rw,
1844 struct cred *cr)
1845 {
1846 struct page *pp;
1847 int flags;
1848 int err = 0;
1849 struct vnode *pvp;
1850 u_offset_t poff;
|
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
29 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
30 */
31
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/t_lock.h>
35 #include <sys/systm.h>
36 #include <sys/sysmacros.h>
37 #include <sys/user.h>
38 #include <sys/time.h>
39 #include <sys/vfs.h>
40 #include <sys/vfs_opreg.h>
41 #include <sys/vnode.h>
42 #include <sys/file.h>
43 #include <sys/fcntl.h>
44 #include <sys/flock.h>
45 #include <sys/kmem.h>
46 #include <sys/uio.h>
47 #include <sys/errno.h>
48 #include <sys/stat.h>
49 #include <sys/cred.h>
1793 rw_enter(&tp->tn_contents, RW_WRITER);
1794 /* Size may have changed when lock was dropped */
1795 if (off + len > tp->tn_size + PAGEOFFSET) {
1796 err = EFAULT;
1797 goto out;
1798 }
1799 }
1800 for (toff = (anoff_t)off; toff < (anoff_t)off + len;
1801 toff += PAGESIZE) {
1802 if (anon_get_ptr(tp->tn_anon, btop(toff)) == NULL) {
1803 /* XXX - may allocate mem w. write lock held */
1804 (void) anon_set_ptr(tp->tn_anon, btop(toff),
1805 anon_alloc(vp, toff), ANON_SLEEP);
1806 tp->tn_nblocks++;
1807 }
1808 }
1809 rw_downgrade(&tp->tn_contents);
1810 }
1811
1812
1813 err = pvn_getpages(tmp_getapage, vp, (u_offset_t)off, len, protp,
1814 pl, plsz, seg, addr, rw, cr);
1815
1816 gethrestime(&now);
1817 tp->tn_atime = now;
1818 if (rw == S_WRITE)
1819 tp->tn_mtime = now;
1820
1821 out:
1822 rw_exit(&tp->tn_contents);
1823 return (err);
1824 }
1825
1826 /*
1827 * Called from pvn_getpages to get a particular page.
1828 */
1829 /*ARGSUSED*/
1830 static int
1831 tmp_getapage(
1832 struct vnode *vp,
1833 u_offset_t off,
1834 size_t len,
1835 uint_t *protp,
1836 page_t *pl[],
1837 size_t plsz,
1838 struct seg *seg,
1839 caddr_t addr,
1840 enum seg_rw rw,
1841 struct cred *cr)
1842 {
1843 struct page *pp;
1844 int flags;
1845 int err = 0;
1846 struct vnode *pvp;
1847 u_offset_t poff;
|