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linux-next/fs/jfs/jfs_inode.c
Al Viro c7b15a8657 jfs: don't bother with make_bad_inode() in ialloc()
We hit that when inumber allocation has failed.  In that case
the in-core inode is not hashed and since its ->i_nlink is 1
the only place where jfs checks is_bad_inode() won't be reached.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-08-03 16:03:33 -04:00

148 lines
3.5 KiB
C

/*
* Copyright (C) International Business Machines Corp., 2000-2004
*
* 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. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/fs.h>
#include <linux/quotaops.h>
#include "jfs_incore.h"
#include "jfs_inode.h"
#include "jfs_filsys.h"
#include "jfs_imap.h"
#include "jfs_dinode.h"
#include "jfs_debug.h"
void jfs_set_inode_flags(struct inode *inode)
{
unsigned int flags = JFS_IP(inode)->mode2;
unsigned int new_fl = 0;
if (flags & JFS_IMMUTABLE_FL)
new_fl |= S_IMMUTABLE;
if (flags & JFS_APPEND_FL)
new_fl |= S_APPEND;
if (flags & JFS_NOATIME_FL)
new_fl |= S_NOATIME;
if (flags & JFS_DIRSYNC_FL)
new_fl |= S_DIRSYNC;
if (flags & JFS_SYNC_FL)
new_fl |= S_SYNC;
inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
S_DIRSYNC | S_SYNC);
}
/*
* NAME: ialloc()
*
* FUNCTION: Allocate a new inode
*
*/
struct inode *ialloc(struct inode *parent, umode_t mode)
{
struct super_block *sb = parent->i_sb;
struct inode *inode;
struct jfs_inode_info *jfs_inode;
int rc;
inode = new_inode(sb);
if (!inode) {
jfs_warn("ialloc: new_inode returned NULL!");
return ERR_PTR(-ENOMEM);
}
jfs_inode = JFS_IP(inode);
rc = diAlloc(parent, S_ISDIR(mode), inode);
if (rc) {
jfs_warn("ialloc: diAlloc returned %d!", rc);
goto fail_put;
}
if (insert_inode_locked(inode) < 0) {
rc = -EINVAL;
goto fail_put;
}
inode_init_owner(inode, parent, mode);
/*
* New inodes need to save sane values on disk when
* uid & gid mount options are used
*/
jfs_inode->saved_uid = inode->i_uid;
jfs_inode->saved_gid = inode->i_gid;
/*
* Allocate inode to quota.
*/
rc = dquot_initialize(inode);
if (rc)
goto fail_drop;
rc = dquot_alloc_inode(inode);
if (rc)
goto fail_drop;
/* inherit flags from parent */
jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
if (S_ISDIR(mode)) {
jfs_inode->mode2 |= IDIRECTORY;
jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
}
else {
jfs_inode->mode2 |= INLINEEA | ISPARSE;
if (S_ISLNK(mode))
jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
}
jfs_inode->mode2 |= inode->i_mode;
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
jfs_inode->otime = inode->i_ctime.tv_sec;
inode->i_generation = JFS_SBI(sb)->gengen++;
jfs_inode->cflag = 0;
/* Zero remaining fields */
memset(&jfs_inode->acl, 0, sizeof(dxd_t));
memset(&jfs_inode->ea, 0, sizeof(dxd_t));
jfs_inode->next_index = 0;
jfs_inode->acltype = 0;
jfs_inode->btorder = 0;
jfs_inode->btindex = 0;
jfs_inode->bxflag = 0;
jfs_inode->blid = 0;
jfs_inode->atlhead = 0;
jfs_inode->atltail = 0;
jfs_inode->xtlid = 0;
jfs_set_inode_flags(inode);
jfs_info("ialloc returns inode = 0x%p", inode);
return inode;
fail_drop:
dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
clear_nlink(inode);
discard_new_inode(inode);
return ERR_PTR(rc);
fail_put:
iput(inode);
return ERR_PTR(rc);
}