From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/fs/ocfs2/symlink.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 kernel/fs/ocfs2/symlink.c (limited to 'kernel/fs/ocfs2/symlink.c') diff --git a/kernel/fs/ocfs2/symlink.c b/kernel/fs/ocfs2/symlink.c new file mode 100644 index 000000000..66edce7ec --- /dev/null +++ b/kernel/fs/ocfs2/symlink.c @@ -0,0 +1,100 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * linux/cluster/ssi/cfs/symlink.c + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE + * or NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Questions/Comments/Bugfixes to ssic-linux-devel@lists.sourceforge.net + * + * Copyright (C) 1992 Rick Sladkey + * + * Optimization changes Copyright (C) 1994 Florian La Roche + * + * Jun 7 1999, cache symlink lookups in the page cache. -DaveM + * + * Portions Copyright (C) 2001 Compaq Computer Corporation + * + * ocfs2 symlink handling code. + * + * Copyright (C) 2004, 2005 Oracle. + * + */ + +#include +#include +#include +#include +#include + +#include + +#include "ocfs2.h" + +#include "alloc.h" +#include "file.h" +#include "inode.h" +#include "journal.h" +#include "symlink.h" +#include "xattr.h" + +#include "buffer_head_io.h" + + +static int ocfs2_fast_symlink_readpage(struct file *unused, struct page *page) +{ + struct inode *inode = page->mapping->host; + struct buffer_head *bh = NULL; + int status = ocfs2_read_inode_block(inode, &bh); + struct ocfs2_dinode *fe; + const char *link; + void *kaddr; + size_t len; + + if (status < 0) { + mlog_errno(status); + return status; + } + + fe = (struct ocfs2_dinode *) bh->b_data; + link = (char *) fe->id2.i_symlink; + /* will be less than a page size */ + len = strnlen(link, ocfs2_fast_symlink_chars(inode->i_sb)); + kaddr = kmap_atomic(page); + memcpy(kaddr, link, len + 1); + kunmap_atomic(kaddr); + SetPageUptodate(page); + unlock_page(page); + brelse(bh); + return 0; +} + +const struct address_space_operations ocfs2_fast_symlink_aops = { + .readpage = ocfs2_fast_symlink_readpage, +}; + +const struct inode_operations ocfs2_symlink_inode_operations = { + .readlink = generic_readlink, + .follow_link = page_follow_link_light, + .put_link = page_put_link, + .getattr = ocfs2_getattr, + .setattr = ocfs2_setattr, + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, + .listxattr = ocfs2_listxattr, + .removexattr = generic_removexattr, + .fiemap = ocfs2_fiemap, +}; -- cgit 1.2.3-korg