Merge sgi.com:/source2/linux-2.6 into sgi.com:/source2/xfs-linux-2.6

fs/xfs/Makefile

@@ -67,8 +67,6 @@ endif
 
 xfs-$(CONFIG_XFS_RT)		+= xfs_rtalloc.o
 xfs-$(CONFIG_XFS_POSIX_ACL)	+= xfs_acl.o
-xfs-$(CONFIG_XFS_POSIX_CAP)	+= xfs_cap.o
-xfs-$(CONFIG_XFS_POSIX_MAC)	+= xfs_mac.o
 xfs-$(CONFIG_PROC_FS)		+= linux-2.6/xfs_stats.o
 xfs-$(CONFIG_SYSCTL)		+= linux-2.6/xfs_sysctl.o
 xfs-$(CONFIG_COMPAT)		+= linux-2.6/xfs_ioctl32.o

fs/xfs/linux-2.6/xfs_aops.c

@@ -552,18 +552,21 @@ xfs_submit_page(
 	struct page		*page,
 	struct writeback_control *wbc,
 	struct buffer_head	*bh_arr[],
-	int			cnt)
+	int			bh_count,
+	int			probed_page,
+	int			clear_dirty)
 {
 	struct buffer_head	*bh;
 	int			i;
 
 	BUG_ON(PageWriteback(page));
 	set_page_writeback(page);
-	clear_page_dirty(page);
+	if (clear_dirty)
+		clear_page_dirty(page);
 	unlock_page(page);
 
-	if (cnt) {
-		for (i = 0; i < cnt; i++) {
+	if (bh_count) {
+		for (i = 0; i < bh_count; i++) {
 			bh = bh_arr[i];
 			mark_buffer_async_write(bh);
 			if (buffer_unwritten(bh))
@@ -572,8 +575,11 @@ xfs_submit_page(
 			clear_buffer_dirty(bh);
 		}
 
-		for (i = 0; i < cnt; i++)
+		for (i = 0; i < bh_count; i++)
 			submit_bh(WRITE, bh_arr[i]);
+
+		if (probed_page && clear_dirty)
+			wbc->nr_to_write--;	/* Wrote an "extra" page */
 	} else {
 		end_page_writeback(page);
 		wbc->pages_skipped++;	/* We didn't write this page */
@@ -612,11 +618,13 @@ xfs_convert_page(
 	bh = head = page_buffers(page);
 	do {
 		offset = i << bbits;
+		if (offset >= end)
+			break;
 		if (!(PageUptodate(page) || buffer_uptodate(bh)))
 			continue;
 		if (buffer_mapped(bh) && all_bh &&
-		    !buffer_unwritten(bh) && !buffer_delay(bh)) {
-			if (startio && (offset < end)) {
+		    !(buffer_unwritten(bh) || buffer_delay(bh))) {
+			if (startio) {
 				lock_buffer(bh);
 				bh_arr[index++] = bh;
 			}
@@ -644,7 +652,7 @@ xfs_convert_page(
 				ASSERT(private);
 			}
 		}
-		if (startio && (offset < end)) {
+		if (startio) {
 			bh_arr[index++] = bh;
 		} else {
 			set_buffer_dirty(bh);
@@ -654,8 +662,7 @@ xfs_convert_page(
 	} while (i++, (bh = bh->b_this_page) != head);
 
 	if (startio) {
-		wbc->nr_to_write--;
-		xfs_submit_page(page, wbc, bh_arr, index);
+		xfs_submit_page(page, wbc, bh_arr, index, 1, index == i);
 	} else {
 		unlock_page(page);
 	}
@@ -867,7 +874,7 @@ xfs_page_state_convert(
 		SetPageUptodate(page);
 
 	if (startio)
-		xfs_submit_page(page, wbc, bh_arr, cnt);
+		xfs_submit_page(page, wbc, bh_arr, cnt, 0, 1);
 
 	if (iomp) {
 		tlast = (iomp->iomap_offset + iomp->iomap_bsize - 1) >>
@@ -1174,7 +1181,7 @@ linvfs_writepage(
 	return 0;
 
 out_fail:
-	set_page_dirty(page);
+	redirty_page_for_writepage(wbc, page);
 	unlock_page(page);
 	return 0;
 out_unlock:

fs/xfs/xfs_cap.c

-/*
- * Copyright (c) 2002 Silicon Graphics, Inc.  All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-
-STATIC int xfs_cap_allow_set(vnode_t *);
-
-
-/*
- * Test for existence of capability attribute as efficiently as possible.
- */
-int
-xfs_cap_vhascap(
-	vnode_t		*vp)
-{
-	int		error;
-	int		len = sizeof(xfs_cap_set_t);
-	int		flags = ATTR_KERNOVAL|ATTR_ROOT;
-
-	VOP_ATTR_GET(vp, SGI_CAP_LINUX, NULL, &len, flags, sys_cred, error);
-	return (error == 0);
-}
-
-/*
- * Convert from extended attribute representation to in-memory for XFS.
- */
-STATIC int
-posix_cap_xattr_to_xfs(
-	posix_cap_xattr		*src,
-	size_t			size,
-	xfs_cap_set_t		*dest)
-{
-	if (!src || !dest)
-		return EINVAL;
-
-	if (src->c_version != cpu_to_le32(POSIX_CAP_XATTR_VERSION))
-		return EINVAL;
-	if (src->c_abiversion != cpu_to_le32(_LINUX_CAPABILITY_VERSION))
-		return EINVAL;
-
-	if (size < sizeof(posix_cap_xattr))
-		return EINVAL;
-
-	ASSERT(sizeof(dest->cap_effective) == sizeof(src->c_effective));
-
-	dest->cap_effective	= src->c_effective;
-	dest->cap_permitted	= src->c_permitted;
-	dest->cap_inheritable	= src->c_inheritable;
-
-	return 0;
-}
-
-/*
- * Convert from in-memory XFS to extended attribute representation.
- */
-STATIC int
-posix_cap_xfs_to_xattr(
-	xfs_cap_set_t		*src,
-	posix_cap_xattr		*xattr_cap,
-	size_t			size)
-{
-	size_t			new_size = posix_cap_xattr_size();
-
-	if (size < new_size)
-		return -ERANGE;
-
-	ASSERT(sizeof(xattr_cap->c_effective) == sizeof(src->cap_effective));
-
-	xattr_cap->c_version	= cpu_to_le32(POSIX_CAP_XATTR_VERSION);
-	xattr_cap->c_abiversion	= cpu_to_le32(_LINUX_CAPABILITY_VERSION);
-	xattr_cap->c_effective	= src->cap_effective;
-	xattr_cap->c_permitted	= src->cap_permitted;
-	xattr_cap->c_inheritable= src->cap_inheritable;
-
-	return new_size;
-}
-
-int
-xfs_cap_vget(
-	vnode_t		*vp,
-	void		*cap,
-	size_t		size)
-{
-	int		error;
-	int		len = sizeof(xfs_cap_set_t);
-	int		flags = ATTR_ROOT;
-	xfs_cap_set_t	xfs_cap = { 0 };
-	posix_cap_xattr	*xattr_cap = cap;
-	char		*data = (char *)&xfs_cap;
-
-	VN_HOLD(vp);
-	if ((error = _MAC_VACCESS(vp, NULL, VREAD)))
-		goto out;
-
-	if (!size) {
-		flags |= ATTR_KERNOVAL;
-		data = NULL;
-	}
-	VOP_ATTR_GET(vp, SGI_CAP_LINUX, data, &len, flags, sys_cred, error);
-	if (error)
-		goto out;
-	ASSERT(len == sizeof(xfs_cap_set_t));
-
-	error = (size)? -posix_cap_xattr_size() :
-			-posix_cap_xfs_to_xattr(&xfs_cap, xattr_cap, size);
-out:
-	VN_RELE(vp);
-	return -error;
-}
-
-int
-xfs_cap_vremove(
-	vnode_t		*vp)
-{
-	int		error;
-
-	VN_HOLD(vp);
-	error = xfs_cap_allow_set(vp);
-	if (!error) {
-		VOP_ATTR_REMOVE(vp, SGI_CAP_LINUX, ATTR_ROOT, sys_cred, error);
-		if (error == ENOATTR)
-			error = 0;	/* 'scool */
-	}
-	VN_RELE(vp);
-	return -error;
-}
-
-int
-xfs_cap_vset(
-	vnode_t			*vp,
-	void			*cap,
-	size_t			size)
-{
-	posix_cap_xattr		*xattr_cap = cap;
-	xfs_cap_set_t		xfs_cap;
-	int			error;
-
-	if (!cap)
-		return -EINVAL;
-
-	error = posix_cap_xattr_to_xfs(xattr_cap, size, &xfs_cap);
-	if (error)
-		return -error;
-
-	VN_HOLD(vp);
-	error = xfs_cap_allow_set(vp);
-	if (error)
-		goto out;
-
-	VOP_ATTR_SET(vp, SGI_CAP_LINUX, (char *)&xfs_cap,
-			sizeof(xfs_cap_set_t), ATTR_ROOT, sys_cred, error);
-out:
-	VN_RELE(vp);
-	return -error;
-}
-
-STATIC int
-xfs_cap_allow_set(
-	vnode_t		*vp)
-{
-	vattr_t		va;
-	int		error;
-
-	if (vp->v_vfsp->vfs_flag & VFS_RDONLY)
-		return EROFS;
-	if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
-		return EPERM;
-	if ((error = _MAC_VACCESS(vp, NULL, VWRITE)))
-		return error;
-	va.va_mask = XFS_AT_UID;
-	VOP_GETATTR(vp, &va, 0, NULL, error);
-	if (error)
-		return error;
-	if (va.va_uid != current->fsuid && !capable(CAP_FOWNER))
-		return EPERM;
-	return error;
-}

fs/xfs/xfs_mac.c

-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
-
-#include "xfs.h"
-
-static xfs_mac_label_t *mac_low_high_lp;
-static xfs_mac_label_t *mac_high_low_lp;
-static xfs_mac_label_t *mac_admin_high_lp;
-static xfs_mac_label_t *mac_equal_equal_lp;
-
-/*
- * Test for the existence of a MAC label as efficiently as possible.
- */
-int
-xfs_mac_vhaslabel(
-	vnode_t		*vp)
-{
-	int		error;
-	int		len = sizeof(xfs_mac_label_t);
-	int		flags = ATTR_KERNOVAL|ATTR_ROOT;
-
-	VOP_ATTR_GET(vp, SGI_MAC_FILE, NULL, &len, flags, sys_cred, error);
-	return (error == 0);
-}
-
-int
-xfs_mac_iaccess(xfs_inode_t *ip, mode_t mode, struct cred *cr)
-{
-	xfs_mac_label_t mac;
-	xfs_mac_label_t *mp = mac_high_low_lp;
-
-	if (cr == NULL || sys_cred == NULL ) {
-		return EACCES;
-	}
-
-	if (xfs_attr_fetch(ip, SGI_MAC_FILE, (char *)&mac, sizeof(mac)) == 0) {
-		if ((mp = mac_add_label(&mac)) == NULL) {
-			return mac_access(mac_high_low_lp, cr, mode);
-		}
-	}
-
-	return mac_access(mp, cr, mode);
-}

fs/xfs/xfs_vnodeops.c

@@ -841,17 +841,17 @@ xfs_setattr(
 			if (vap->va_xflags & XFS_XFLAG_NODUMP)
 				di_flags |= XFS_DIFLAG_NODUMP;
 			if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
-				if (vap->va_xflags & XFS_XFLAG_REALTIME) {
-					ip->i_iocore.io_flags |= XFS_IOCORE_RT;
-					di_flags |= XFS_DIFLAG_REALTIME;
-				}
 				if (vap->va_xflags & XFS_XFLAG_RTINHERIT)
 					di_flags |= XFS_DIFLAG_RTINHERIT;
 				if (vap->va_xflags & XFS_XFLAG_NOSYMLINKS)
 					di_flags |= XFS_DIFLAG_NOSYMLINKS;
 			} else {
-				if (!(vap->va_xflags & XFS_XFLAG_REALTIME))
+				if (vap->va_xflags & XFS_XFLAG_REALTIME) {
+					di_flags |= XFS_DIFLAG_REALTIME;
+					ip->i_iocore.io_flags |= XFS_IOCORE_RT;
+				} else {
 					ip->i_iocore.io_flags &= ~XFS_IOCORE_RT;
+				}
 			}
 			ip->i_d.di_flags = di_flags;
 		}