mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
24e4a0f3de
According to commit 5f16f3225b
ext4: atomically set inode->i_flags in ext4_set_inode_flags()
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
165 lines
4 KiB
C
165 lines
4 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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dquot_initialize(inode);
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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;
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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\n", 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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