cregit-Linux how code gets into the kernel

Release 4.10 fs/ocfs2/symlink.c

Directory: fs/ocfs2
/* -*- 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
 *      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
 *  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 <linux/fs.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/namei.h>

#include <cluster/masklog.h>

#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; }


mark fashehmark fasheh8856.05%114.29%
al viroal viro5736.31%114.29%
joel beckerjoel becker95.73%342.86%
sunil mushransunil mushran21.27%114.29%
hirofumi ogawahirofumi ogawa10.64%114.29%

const struct address_space_operations ocfs2_fast_symlink_aops = { .readpage = ocfs2_fast_symlink_readpage, }; const struct inode_operations ocfs2_symlink_inode_operations = { .get_link = page_get_link, .getattr = ocfs2_getattr, .setattr = ocfs2_setattr, .listxattr = ocfs2_listxattr, .fiemap = ocfs2_fiemap, };

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al viroal viro6426.23%216.67%
joel beckerjoel becker124.92%325.00%
tiger yangtiger yang104.10%18.33%
sunil mushransunil mushran72.87%216.67%
tristan yetristan ye31.23%18.33%
arjan van de venarjan van de ven20.82%18.33%
hirofumi ogawahirofumi ogawa10.41%18.33%
Directory: fs/ocfs2
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