078cd8279e
CURRENT_TIME macro is not appropriate for filesystems as it doesn't use the right granularity for filesystem timestamps. Use current_time() instead. CURRENT_TIME is also not y2038 safe. This is also in preparation for the patch that transitions vfs timestamps to use 64 bit time and hence make them y2038 safe. As part of the effort current_time() will be extended to do range checks. Hence, it is necessary for all file system timestamps to use current_time(). Also, current_time() will be transitioned along with vfs to be y2038 safe. Note that whenever a single call to current_time() is used to change timestamps in different inodes, it is because they share the same time granularity. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Felipe Balbi <balbi@kernel.org> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: David Sterba <dsterba@suse.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
168 lines
4.1 KiB
C
168 lines
4.1 KiB
C
/*
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* Copyright (C) International Business Machines Corp., 2000-2004
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/fs.h>
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#include <linux/quotaops.h>
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#include "jfs_incore.h"
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#include "jfs_inode.h"
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#include "jfs_filsys.h"
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#include "jfs_imap.h"
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#include "jfs_dinode.h"
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#include "jfs_debug.h"
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void jfs_set_inode_flags(struct inode *inode)
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{
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unsigned int flags = JFS_IP(inode)->mode2;
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unsigned int new_fl = 0;
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if (flags & JFS_IMMUTABLE_FL)
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new_fl |= S_IMMUTABLE;
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if (flags & JFS_APPEND_FL)
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new_fl |= S_APPEND;
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if (flags & JFS_NOATIME_FL)
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new_fl |= S_NOATIME;
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if (flags & JFS_DIRSYNC_FL)
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new_fl |= S_DIRSYNC;
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if (flags & JFS_SYNC_FL)
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new_fl |= S_SYNC;
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inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
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S_DIRSYNC | S_SYNC);
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}
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void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
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{
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unsigned int flags = jfs_ip->vfs_inode.i_flags;
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jfs_ip->mode2 &= ~(JFS_IMMUTABLE_FL | JFS_APPEND_FL | JFS_NOATIME_FL |
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JFS_DIRSYNC_FL | JFS_SYNC_FL);
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if (flags & S_IMMUTABLE)
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jfs_ip->mode2 |= JFS_IMMUTABLE_FL;
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if (flags & S_APPEND)
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jfs_ip->mode2 |= JFS_APPEND_FL;
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if (flags & S_NOATIME)
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jfs_ip->mode2 |= JFS_NOATIME_FL;
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if (flags & S_DIRSYNC)
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jfs_ip->mode2 |= JFS_DIRSYNC_FL;
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if (flags & S_SYNC)
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jfs_ip->mode2 |= JFS_SYNC_FL;
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}
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/*
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* NAME: ialloc()
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*
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* FUNCTION: Allocate a new inode
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*
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*/
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struct inode *ialloc(struct inode *parent, umode_t mode)
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{
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struct super_block *sb = parent->i_sb;
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struct inode *inode;
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struct jfs_inode_info *jfs_inode;
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int rc;
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inode = new_inode(sb);
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if (!inode) {
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jfs_warn("ialloc: new_inode returned NULL!");
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rc = -ENOMEM;
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goto fail;
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}
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jfs_inode = JFS_IP(inode);
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rc = diAlloc(parent, S_ISDIR(mode), inode);
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if (rc) {
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jfs_warn("ialloc: diAlloc returned %d!", rc);
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if (rc == -EIO)
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make_bad_inode(inode);
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goto fail_put;
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}
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if (insert_inode_locked(inode) < 0) {
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rc = -EINVAL;
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goto fail_put;
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}
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inode_init_owner(inode, parent, mode);
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/*
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* New inodes need to save sane values on disk when
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* uid & gid mount options are used
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*/
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jfs_inode->saved_uid = inode->i_uid;
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jfs_inode->saved_gid = inode->i_gid;
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/*
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* Allocate inode to quota.
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*/
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rc = dquot_initialize(inode);
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if (rc)
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goto fail_drop;
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rc = dquot_alloc_inode(inode);
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if (rc)
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goto fail_drop;
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/* inherit flags from parent */
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jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
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if (S_ISDIR(mode)) {
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jfs_inode->mode2 |= IDIRECTORY;
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jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
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}
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else {
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jfs_inode->mode2 |= INLINEEA | ISPARSE;
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if (S_ISLNK(mode))
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jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
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}
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jfs_inode->mode2 |= inode->i_mode;
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inode->i_blocks = 0;
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inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
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jfs_inode->otime = inode->i_ctime.tv_sec;
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inode->i_generation = JFS_SBI(sb)->gengen++;
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jfs_inode->cflag = 0;
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/* Zero remaining fields */
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memset(&jfs_inode->acl, 0, sizeof(dxd_t));
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memset(&jfs_inode->ea, 0, sizeof(dxd_t));
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jfs_inode->next_index = 0;
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jfs_inode->acltype = 0;
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jfs_inode->btorder = 0;
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jfs_inode->btindex = 0;
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jfs_inode->bxflag = 0;
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jfs_inode->blid = 0;
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jfs_inode->atlhead = 0;
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jfs_inode->atltail = 0;
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jfs_inode->xtlid = 0;
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jfs_set_inode_flags(inode);
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jfs_info("ialloc returns inode = 0x%p", inode);
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return inode;
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fail_drop:
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dquot_drop(inode);
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inode->i_flags |= S_NOQUOTA;
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clear_nlink(inode);
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unlock_new_inode(inode);
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fail_put:
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iput(inode);
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fail:
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return ERR_PTR(rc);
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}
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