1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) International Business Machines Corp., 2000-2004
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <linux/fs.h>
7*4882a593Smuzhiyun #include <linux/quotaops.h>
8*4882a593Smuzhiyun #include "jfs_incore.h"
9*4882a593Smuzhiyun #include "jfs_inode.h"
10*4882a593Smuzhiyun #include "jfs_filsys.h"
11*4882a593Smuzhiyun #include "jfs_imap.h"
12*4882a593Smuzhiyun #include "jfs_dinode.h"
13*4882a593Smuzhiyun #include "jfs_debug.h"
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun
jfs_set_inode_flags(struct inode * inode)16*4882a593Smuzhiyun void jfs_set_inode_flags(struct inode *inode)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun unsigned int flags = JFS_IP(inode)->mode2;
19*4882a593Smuzhiyun unsigned int new_fl = 0;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun if (flags & JFS_IMMUTABLE_FL)
22*4882a593Smuzhiyun new_fl |= S_IMMUTABLE;
23*4882a593Smuzhiyun if (flags & JFS_APPEND_FL)
24*4882a593Smuzhiyun new_fl |= S_APPEND;
25*4882a593Smuzhiyun if (flags & JFS_NOATIME_FL)
26*4882a593Smuzhiyun new_fl |= S_NOATIME;
27*4882a593Smuzhiyun if (flags & JFS_DIRSYNC_FL)
28*4882a593Smuzhiyun new_fl |= S_DIRSYNC;
29*4882a593Smuzhiyun if (flags & JFS_SYNC_FL)
30*4882a593Smuzhiyun new_fl |= S_SYNC;
31*4882a593Smuzhiyun inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
32*4882a593Smuzhiyun S_DIRSYNC | S_SYNC);
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /*
36*4882a593Smuzhiyun * NAME: ialloc()
37*4882a593Smuzhiyun *
38*4882a593Smuzhiyun * FUNCTION: Allocate a new inode
39*4882a593Smuzhiyun *
40*4882a593Smuzhiyun */
ialloc(struct inode * parent,umode_t mode)41*4882a593Smuzhiyun struct inode *ialloc(struct inode *parent, umode_t mode)
42*4882a593Smuzhiyun {
43*4882a593Smuzhiyun struct super_block *sb = parent->i_sb;
44*4882a593Smuzhiyun struct inode *inode;
45*4882a593Smuzhiyun struct jfs_inode_info *jfs_inode;
46*4882a593Smuzhiyun int rc;
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun inode = new_inode(sb);
49*4882a593Smuzhiyun if (!inode) {
50*4882a593Smuzhiyun jfs_warn("ialloc: new_inode returned NULL!");
51*4882a593Smuzhiyun return ERR_PTR(-ENOMEM);
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun jfs_inode = JFS_IP(inode);
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun rc = diAlloc(parent, S_ISDIR(mode), inode);
57*4882a593Smuzhiyun if (rc) {
58*4882a593Smuzhiyun jfs_warn("ialloc: diAlloc returned %d!", rc);
59*4882a593Smuzhiyun goto fail_put;
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun if (insert_inode_locked(inode) < 0) {
63*4882a593Smuzhiyun rc = -EINVAL;
64*4882a593Smuzhiyun goto fail_put;
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun inode_init_owner(inode, parent, mode);
68*4882a593Smuzhiyun /*
69*4882a593Smuzhiyun * New inodes need to save sane values on disk when
70*4882a593Smuzhiyun * uid & gid mount options are used
71*4882a593Smuzhiyun */
72*4882a593Smuzhiyun jfs_inode->saved_uid = inode->i_uid;
73*4882a593Smuzhiyun jfs_inode->saved_gid = inode->i_gid;
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun /*
76*4882a593Smuzhiyun * Allocate inode to quota.
77*4882a593Smuzhiyun */
78*4882a593Smuzhiyun rc = dquot_initialize(inode);
79*4882a593Smuzhiyun if (rc)
80*4882a593Smuzhiyun goto fail_drop;
81*4882a593Smuzhiyun rc = dquot_alloc_inode(inode);
82*4882a593Smuzhiyun if (rc)
83*4882a593Smuzhiyun goto fail_drop;
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun /* inherit flags from parent */
86*4882a593Smuzhiyun jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun if (S_ISDIR(mode)) {
89*4882a593Smuzhiyun jfs_inode->mode2 |= IDIRECTORY;
90*4882a593Smuzhiyun jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
91*4882a593Smuzhiyun }
92*4882a593Smuzhiyun else {
93*4882a593Smuzhiyun jfs_inode->mode2 |= INLINEEA | ISPARSE;
94*4882a593Smuzhiyun if (S_ISLNK(mode))
95*4882a593Smuzhiyun jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
96*4882a593Smuzhiyun }
97*4882a593Smuzhiyun jfs_inode->mode2 |= inode->i_mode;
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun inode->i_blocks = 0;
100*4882a593Smuzhiyun inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
101*4882a593Smuzhiyun jfs_inode->otime = inode->i_ctime.tv_sec;
102*4882a593Smuzhiyun inode->i_generation = JFS_SBI(sb)->gengen++;
103*4882a593Smuzhiyun
104*4882a593Smuzhiyun jfs_inode->cflag = 0;
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun /* Zero remaining fields */
107*4882a593Smuzhiyun memset(&jfs_inode->acl, 0, sizeof(dxd_t));
108*4882a593Smuzhiyun memset(&jfs_inode->ea, 0, sizeof(dxd_t));
109*4882a593Smuzhiyun jfs_inode->next_index = 0;
110*4882a593Smuzhiyun jfs_inode->acltype = 0;
111*4882a593Smuzhiyun jfs_inode->btorder = 0;
112*4882a593Smuzhiyun jfs_inode->btindex = 0;
113*4882a593Smuzhiyun jfs_inode->bxflag = 0;
114*4882a593Smuzhiyun jfs_inode->blid = 0;
115*4882a593Smuzhiyun jfs_inode->atlhead = 0;
116*4882a593Smuzhiyun jfs_inode->atltail = 0;
117*4882a593Smuzhiyun jfs_inode->xtlid = 0;
118*4882a593Smuzhiyun jfs_set_inode_flags(inode);
119*4882a593Smuzhiyun
120*4882a593Smuzhiyun jfs_info("ialloc returns inode = 0x%p", inode);
121*4882a593Smuzhiyun
122*4882a593Smuzhiyun return inode;
123*4882a593Smuzhiyun
124*4882a593Smuzhiyun fail_drop:
125*4882a593Smuzhiyun dquot_drop(inode);
126*4882a593Smuzhiyun inode->i_flags |= S_NOQUOTA;
127*4882a593Smuzhiyun clear_nlink(inode);
128*4882a593Smuzhiyun discard_new_inode(inode);
129*4882a593Smuzhiyun return ERR_PTR(rc);
130*4882a593Smuzhiyun
131*4882a593Smuzhiyun fail_put:
132*4882a593Smuzhiyun iput(inode);
133*4882a593Smuzhiyun return ERR_PTR(rc);
134*4882a593Smuzhiyun }
135