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-rw-r--r--fs/gfs2/inode.c406
1 files changed, 140 insertions, 266 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index d470e5286ecd..d122074c45e1 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -38,83 +38,12 @@
38#include "trans.h" 38#include "trans.h"
39#include "util.h" 39#include "util.h"
40 40
41/**
42 * gfs2_inode_attr_in - Copy attributes from the dinode into the VFS inode
43 * @ip: The GFS2 inode (with embedded disk inode data)
44 * @inode: The Linux VFS inode
45 *
46 */
47
48void gfs2_inode_attr_in(struct gfs2_inode *ip)
49{
50 struct inode *inode = &ip->i_inode;
51 struct gfs2_dinode *di = &ip->i_di;
52
53 inode->i_ino = ip->i_num.no_addr;
54
55 switch (di->di_mode & S_IFMT) {
56 case S_IFBLK:
57 case S_IFCHR:
58 inode->i_rdev = MKDEV(di->di_major, di->di_minor);
59 break;
60 default:
61 inode->i_rdev = 0;
62 break;
63 };
64
65 inode->i_mode = di->di_mode;
66 inode->i_nlink = di->di_nlink;
67 inode->i_uid = di->di_uid;
68 inode->i_gid = di->di_gid;
69 i_size_write(inode, di->di_size);
70 inode->i_atime.tv_sec = di->di_atime;
71 inode->i_mtime.tv_sec = di->di_mtime;
72 inode->i_ctime.tv_sec = di->di_ctime;
73 inode->i_atime.tv_nsec = 0;
74 inode->i_mtime.tv_nsec = 0;
75 inode->i_ctime.tv_nsec = 0;
76 inode->i_blocks = di->di_blocks <<
77 (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
78
79 if (di->di_flags & GFS2_DIF_IMMUTABLE)
80 inode->i_flags |= S_IMMUTABLE;
81 else
82 inode->i_flags &= ~S_IMMUTABLE;
83
84 if (di->di_flags & GFS2_DIF_APPENDONLY)
85 inode->i_flags |= S_APPEND;
86 else
87 inode->i_flags &= ~S_APPEND;
88}
89
90/**
91 * gfs2_inode_attr_out - Copy attributes from VFS inode into the dinode
92 * @ip: The GFS2 inode
93 *
94 * Only copy out the attributes that we want the VFS layer
95 * to be able to modify.
96 */
97
98void gfs2_inode_attr_out(struct gfs2_inode *ip)
99{
100 struct inode *inode = &ip->i_inode;
101 struct gfs2_dinode *di = &ip->i_di;
102 gfs2_assert_withdraw(GFS2_SB(inode),
103 (di->di_mode & S_IFMT) == (inode->i_mode & S_IFMT));
104 di->di_mode = inode->i_mode;
105 di->di_uid = inode->i_uid;
106 di->di_gid = inode->i_gid;
107 di->di_atime = inode->i_atime.tv_sec;
108 di->di_mtime = inode->i_mtime.tv_sec;
109 di->di_ctime = inode->i_ctime.tv_sec;
110}
111
112static int iget_test(struct inode *inode, void *opaque) 41static int iget_test(struct inode *inode, void *opaque)
113{ 42{
114 struct gfs2_inode *ip = GFS2_I(inode); 43 struct gfs2_inode *ip = GFS2_I(inode);
115 struct gfs2_inum *inum = opaque; 44 struct gfs2_inum_host *inum = opaque;
116 45
117 if (ip && ip->i_num.no_addr == inum->no_addr) 46 if (ip->i_num.no_addr == inum->no_addr)
118 return 1; 47 return 1;
119 48
120 return 0; 49 return 0;
@@ -123,19 +52,20 @@ static int iget_test(struct inode *inode, void *opaque)
123static int iget_set(struct inode *inode, void *opaque) 52static int iget_set(struct inode *inode, void *opaque)
124{ 53{
125 struct gfs2_inode *ip = GFS2_I(inode); 54 struct gfs2_inode *ip = GFS2_I(inode);
126 struct gfs2_inum *inum = opaque; 55 struct gfs2_inum_host *inum = opaque;
127 56
128 ip->i_num = *inum; 57 ip->i_num = *inum;
58 inode->i_ino = inum->no_addr;
129 return 0; 59 return 0;
130} 60}
131 61
132struct inode *gfs2_ilookup(struct super_block *sb, struct gfs2_inum *inum) 62struct inode *gfs2_ilookup(struct super_block *sb, struct gfs2_inum_host *inum)
133{ 63{
134 return ilookup5(sb, (unsigned long)inum->no_formal_ino, 64 return ilookup5(sb, (unsigned long)inum->no_formal_ino,
135 iget_test, inum); 65 iget_test, inum);
136} 66}
137 67
138static struct inode *gfs2_iget(struct super_block *sb, struct gfs2_inum *inum) 68static struct inode *gfs2_iget(struct super_block *sb, struct gfs2_inum_host *inum)
139{ 69{
140 return iget5_locked(sb, (unsigned long)inum->no_formal_ino, 70 return iget5_locked(sb, (unsigned long)inum->no_formal_ino,
141 iget_test, iget_set, inum); 71 iget_test, iget_set, inum);
@@ -150,7 +80,7 @@ static struct inode *gfs2_iget(struct super_block *sb, struct gfs2_inum *inum)
150 * Returns: A VFS inode, or an error 80 * Returns: A VFS inode, or an error
151 */ 81 */
152 82
153struct inode *gfs2_inode_lookup(struct super_block *sb, struct gfs2_inum *inum, unsigned int type) 83struct inode *gfs2_inode_lookup(struct super_block *sb, struct gfs2_inum_host *inum, unsigned int type)
154{ 84{
155 struct inode *inode = gfs2_iget(sb, inum); 85 struct inode *inode = gfs2_iget(sb, inum);
156 struct gfs2_inode *ip = GFS2_I(inode); 86 struct gfs2_inode *ip = GFS2_I(inode);
@@ -188,7 +118,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, struct gfs2_inum *inum,
188 if (unlikely(error)) 118 if (unlikely(error))
189 goto fail_put; 119 goto fail_put;
190 120
191 ip->i_vn = ip->i_gl->gl_vn - 1; 121 set_bit(GIF_INVALID, &ip->i_flags);
192 error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh); 122 error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh);
193 if (unlikely(error)) 123 if (unlikely(error))
194 goto fail_iopen; 124 goto fail_iopen;
@@ -208,6 +138,63 @@ fail:
208 return ERR_PTR(error); 138 return ERR_PTR(error);
209} 139}
210 140
141static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
142{
143 struct gfs2_dinode_host *di = &ip->i_di;
144 const struct gfs2_dinode *str = buf;
145
146 if (ip->i_num.no_addr != be64_to_cpu(str->di_num.no_addr)) {
147 if (gfs2_consist_inode(ip))
148 gfs2_dinode_print(ip);
149 return -EIO;
150 }
151 if (ip->i_num.no_formal_ino != be64_to_cpu(str->di_num.no_formal_ino))
152 return -ESTALE;
153
154 ip->i_inode.i_mode = be32_to_cpu(str->di_mode);
155 ip->i_inode.i_rdev = 0;
156 switch (ip->i_inode.i_mode & S_IFMT) {
157 case S_IFBLK:
158 case S_IFCHR:
159 ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major),
160 be32_to_cpu(str->di_minor));
161 break;
162 };
163
164 ip->i_inode.i_uid = be32_to_cpu(str->di_uid);
165 ip->i_inode.i_gid = be32_to_cpu(str->di_gid);
166 /*
167 * We will need to review setting the nlink count here in the
168 * light of the forthcoming ro bind mount work. This is a reminder
169 * to do that.
170 */
171 ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink);
172 di->di_size = be64_to_cpu(str->di_size);
173 i_size_write(&ip->i_inode, di->di_size);
174 di->di_blocks = be64_to_cpu(str->di_blocks);
175 gfs2_set_inode_blocks(&ip->i_inode);
176 ip->i_inode.i_atime.tv_sec = be64_to_cpu(str->di_atime);
177 ip->i_inode.i_atime.tv_nsec = 0;
178 ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
179 ip->i_inode.i_mtime.tv_nsec = 0;
180 ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime);
181 ip->i_inode.i_ctime.tv_nsec = 0;
182
183 di->di_goal_meta = be64_to_cpu(str->di_goal_meta);
184 di->di_goal_data = be64_to_cpu(str->di_goal_data);
185 di->di_generation = be64_to_cpu(str->di_generation);
186
187 di->di_flags = be32_to_cpu(str->di_flags);
188 gfs2_set_inode_flags(&ip->i_inode);
189 di->di_height = be16_to_cpu(str->di_height);
190
191 di->di_depth = be16_to_cpu(str->di_depth);
192 di->di_entries = be32_to_cpu(str->di_entries);
193
194 di->di_eattr = be64_to_cpu(str->di_eattr);
195 return 0;
196}
197
211/** 198/**
212 * gfs2_inode_refresh - Refresh the incore copy of the dinode 199 * gfs2_inode_refresh - Refresh the incore copy of the dinode
213 * @ip: The GFS2 inode 200 * @ip: The GFS2 inode
@@ -229,21 +216,11 @@ int gfs2_inode_refresh(struct gfs2_inode *ip)
229 return -EIO; 216 return -EIO;
230 } 217 }
231 218
232 gfs2_dinode_in(&ip->i_di, dibh->b_data); 219 error = gfs2_dinode_in(ip, dibh->b_data);
233
234 brelse(dibh); 220 brelse(dibh);
221 clear_bit(GIF_INVALID, &ip->i_flags);
235 222
236 if (ip->i_num.no_addr != ip->i_di.di_num.no_addr) { 223 return error;
237 if (gfs2_consist_inode(ip))
238 gfs2_dinode_print(&ip->i_di);
239 return -EIO;
240 }
241 if (ip->i_num.no_formal_ino != ip->i_di.di_num.no_formal_ino)
242 return -ESTALE;
243
244 ip->i_vn = ip->i_gl->gl_vn;
245
246 return 0;
247} 224}
248 225
249int gfs2_dinode_dealloc(struct gfs2_inode *ip) 226int gfs2_dinode_dealloc(struct gfs2_inode *ip)
@@ -255,7 +232,7 @@ int gfs2_dinode_dealloc(struct gfs2_inode *ip)
255 232
256 if (ip->i_di.di_blocks != 1) { 233 if (ip->i_di.di_blocks != 1) {
257 if (gfs2_consist_inode(ip)) 234 if (gfs2_consist_inode(ip))
258 gfs2_dinode_print(&ip->i_di); 235 gfs2_dinode_print(ip);
259 return -EIO; 236 return -EIO;
260 } 237 }
261 238
@@ -318,14 +295,14 @@ int gfs2_change_nlink(struct gfs2_inode *ip, int diff)
318 u32 nlink; 295 u32 nlink;
319 int error; 296 int error;
320 297
321 BUG_ON(ip->i_di.di_nlink != ip->i_inode.i_nlink); 298 BUG_ON(diff != 1 && diff != -1);
322 nlink = ip->i_di.di_nlink + diff; 299 nlink = ip->i_inode.i_nlink + diff;
323 300
324 /* If we are reducing the nlink count, but the new value ends up being 301 /* If we are reducing the nlink count, but the new value ends up being
325 bigger than the old one, we must have underflowed. */ 302 bigger than the old one, we must have underflowed. */
326 if (diff < 0 && nlink > ip->i_di.di_nlink) { 303 if (diff < 0 && nlink > ip->i_inode.i_nlink) {
327 if (gfs2_consist_inode(ip)) 304 if (gfs2_consist_inode(ip))
328 gfs2_dinode_print(&ip->i_di); 305 gfs2_dinode_print(ip);
329 return -EIO; 306 return -EIO;
330 } 307 }
331 308
@@ -333,16 +310,19 @@ int gfs2_change_nlink(struct gfs2_inode *ip, int diff)
333 if (error) 310 if (error)
334 return error; 311 return error;
335 312
336 ip->i_di.di_nlink = nlink; 313 if (diff > 0)
337 ip->i_di.di_ctime = get_seconds(); 314 inc_nlink(&ip->i_inode);
338 ip->i_inode.i_nlink = nlink; 315 else
316 drop_nlink(&ip->i_inode);
317
318 ip->i_inode.i_ctime.tv_sec = get_seconds();
339 319
340 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 320 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
341 gfs2_dinode_out(&ip->i_di, dibh->b_data); 321 gfs2_dinode_out(ip, dibh->b_data);
342 brelse(dibh); 322 brelse(dibh);
343 mark_inode_dirty(&ip->i_inode); 323 mark_inode_dirty(&ip->i_inode);
344 324
345 if (ip->i_di.di_nlink == 0) { 325 if (ip->i_inode.i_nlink == 0) {
346 struct gfs2_rgrpd *rgd; 326 struct gfs2_rgrpd *rgd;
347 struct gfs2_holder ri_gh, rg_gh; 327 struct gfs2_holder ri_gh, rg_gh;
348 328
@@ -357,7 +337,6 @@ int gfs2_change_nlink(struct gfs2_inode *ip, int diff)
357 if (error) 337 if (error)
358 goto out_norgrp; 338 goto out_norgrp;
359 339
360 clear_nlink(&ip->i_inode);
361 gfs2_unlink_di(&ip->i_inode); /* mark inode unlinked */ 340 gfs2_unlink_di(&ip->i_inode); /* mark inode unlinked */
362 gfs2_glock_dq_uninit(&rg_gh); 341 gfs2_glock_dq_uninit(&rg_gh);
363out_norgrp: 342out_norgrp:
@@ -394,7 +373,7 @@ struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
394 struct super_block *sb = dir->i_sb; 373 struct super_block *sb = dir->i_sb;
395 struct gfs2_inode *dip = GFS2_I(dir); 374 struct gfs2_inode *dip = GFS2_I(dir);
396 struct gfs2_holder d_gh; 375 struct gfs2_holder d_gh;
397 struct gfs2_inum inum; 376 struct gfs2_inum_host inum;
398 unsigned int type; 377 unsigned int type;
399 int error = 0; 378 int error = 0;
400 struct inode *inode = NULL; 379 struct inode *inode = NULL;
@@ -436,7 +415,7 @@ static int pick_formal_ino_1(struct gfs2_sbd *sdp, u64 *formal_ino)
436{ 415{
437 struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode); 416 struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode);
438 struct buffer_head *bh; 417 struct buffer_head *bh;
439 struct gfs2_inum_range ir; 418 struct gfs2_inum_range_host ir;
440 int error; 419 int error;
441 420
442 error = gfs2_trans_begin(sdp, RES_DINODE, 0); 421 error = gfs2_trans_begin(sdp, RES_DINODE, 0);
@@ -479,7 +458,7 @@ static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino)
479 struct gfs2_inode *m_ip = GFS2_I(sdp->sd_inum_inode); 458 struct gfs2_inode *m_ip = GFS2_I(sdp->sd_inum_inode);
480 struct gfs2_holder gh; 459 struct gfs2_holder gh;
481 struct buffer_head *bh; 460 struct buffer_head *bh;
482 struct gfs2_inum_range ir; 461 struct gfs2_inum_range_host ir;
483 int error; 462 int error;
484 463
485 error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); 464 error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
@@ -500,21 +479,22 @@ static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino)
500 if (!ir.ir_length) { 479 if (!ir.ir_length) {
501 struct buffer_head *m_bh; 480 struct buffer_head *m_bh;
502 u64 x, y; 481 u64 x, y;
482 __be64 z;
503 483
504 error = gfs2_meta_inode_buffer(m_ip, &m_bh); 484 error = gfs2_meta_inode_buffer(m_ip, &m_bh);
505 if (error) 485 if (error)
506 goto out_brelse; 486 goto out_brelse;
507 487
508 x = *(u64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)); 488 z = *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
509 x = y = be64_to_cpu(x); 489 x = y = be64_to_cpu(z);
510 ir.ir_start = x; 490 ir.ir_start = x;
511 ir.ir_length = GFS2_INUM_QUANTUM; 491 ir.ir_length = GFS2_INUM_QUANTUM;
512 x += GFS2_INUM_QUANTUM; 492 x += GFS2_INUM_QUANTUM;
513 if (x < y) 493 if (x < y)
514 gfs2_consist_inode(m_ip); 494 gfs2_consist_inode(m_ip);
515 x = cpu_to_be64(x); 495 z = cpu_to_be64(x);
516 gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1); 496 gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1);
517 *(u64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = x; 497 *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = z;
518 498
519 brelse(m_bh); 499 brelse(m_bh);
520 } 500 }
@@ -567,7 +547,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
567 return error; 547 return error;
568 548
569 /* Don't create entries in an unlinked directory */ 549 /* Don't create entries in an unlinked directory */
570 if (!dip->i_di.di_nlink) 550 if (!dip->i_inode.i_nlink)
571 return -EPERM; 551 return -EPERM;
572 552
573 error = gfs2_dir_search(&dip->i_inode, name, NULL, NULL); 553 error = gfs2_dir_search(&dip->i_inode, name, NULL, NULL);
@@ -583,7 +563,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
583 563
584 if (dip->i_di.di_entries == (u32)-1) 564 if (dip->i_di.di_entries == (u32)-1)
585 return -EFBIG; 565 return -EFBIG;
586 if (S_ISDIR(mode) && dip->i_di.di_nlink == (u32)-1) 566 if (S_ISDIR(mode) && dip->i_inode.i_nlink == (u32)-1)
587 return -EMLINK; 567 return -EMLINK;
588 568
589 return 0; 569 return 0;
@@ -593,24 +573,24 @@ static void munge_mode_uid_gid(struct gfs2_inode *dip, unsigned int *mode,
593 unsigned int *uid, unsigned int *gid) 573 unsigned int *uid, unsigned int *gid)
594{ 574{
595 if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir && 575 if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir &&
596 (dip->i_di.di_mode & S_ISUID) && dip->i_di.di_uid) { 576 (dip->i_inode.i_mode & S_ISUID) && dip->i_inode.i_uid) {
597 if (S_ISDIR(*mode)) 577 if (S_ISDIR(*mode))
598 *mode |= S_ISUID; 578 *mode |= S_ISUID;
599 else if (dip->i_di.di_uid != current->fsuid) 579 else if (dip->i_inode.i_uid != current->fsuid)
600 *mode &= ~07111; 580 *mode &= ~07111;
601 *uid = dip->i_di.di_uid; 581 *uid = dip->i_inode.i_uid;
602 } else 582 } else
603 *uid = current->fsuid; 583 *uid = current->fsuid;
604 584
605 if (dip->i_di.di_mode & S_ISGID) { 585 if (dip->i_inode.i_mode & S_ISGID) {
606 if (S_ISDIR(*mode)) 586 if (S_ISDIR(*mode))
607 *mode |= S_ISGID; 587 *mode |= S_ISGID;
608 *gid = dip->i_di.di_gid; 588 *gid = dip->i_inode.i_gid;
609 } else 589 } else
610 *gid = current->fsgid; 590 *gid = current->fsgid;
611} 591}
612 592
613static int alloc_dinode(struct gfs2_inode *dip, struct gfs2_inum *inum, 593static int alloc_dinode(struct gfs2_inode *dip, struct gfs2_inum_host *inum,
614 u64 *generation) 594 u64 *generation)
615{ 595{
616 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 596 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
@@ -650,9 +630,9 @@ out:
650 */ 630 */
651 631
652static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, 632static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
653 const struct gfs2_inum *inum, unsigned int mode, 633 const struct gfs2_inum_host *inum, unsigned int mode,
654 unsigned int uid, unsigned int gid, 634 unsigned int uid, unsigned int gid,
655 const u64 *generation) 635 const u64 *generation, dev_t dev)
656{ 636{
657 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 637 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
658 struct gfs2_dinode *di; 638 struct gfs2_dinode *di;
@@ -669,14 +649,15 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
669 di->di_mode = cpu_to_be32(mode); 649 di->di_mode = cpu_to_be32(mode);
670 di->di_uid = cpu_to_be32(uid); 650 di->di_uid = cpu_to_be32(uid);
671 di->di_gid = cpu_to_be32(gid); 651 di->di_gid = cpu_to_be32(gid);
672 di->di_nlink = cpu_to_be32(0); 652 di->di_nlink = 0;
673 di->di_size = cpu_to_be64(0); 653 di->di_size = 0;
674 di->di_blocks = cpu_to_be64(1); 654 di->di_blocks = cpu_to_be64(1);
675 di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(get_seconds()); 655 di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(get_seconds());
676 di->di_major = di->di_minor = cpu_to_be32(0); 656 di->di_major = cpu_to_be32(MAJOR(dev));
657 di->di_minor = cpu_to_be32(MINOR(dev));
677 di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr); 658 di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr);
678 di->di_generation = cpu_to_be64(*generation); 659 di->di_generation = cpu_to_be64(*generation);
679 di->di_flags = cpu_to_be32(0); 660 di->di_flags = 0;
680 661
681 if (S_ISREG(mode)) { 662 if (S_ISREG(mode)) {
682 if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) || 663 if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) ||
@@ -693,22 +674,22 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
693 } 674 }
694 675
695 di->__pad1 = 0; 676 di->__pad1 = 0;
696 di->di_payload_format = cpu_to_be32(0); 677 di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0);
697 di->di_height = cpu_to_be32(0); 678 di->di_height = 0;
698 di->__pad2 = 0; 679 di->__pad2 = 0;
699 di->__pad3 = 0; 680 di->__pad3 = 0;
700 di->di_depth = cpu_to_be16(0); 681 di->di_depth = 0;
701 di->di_entries = cpu_to_be32(0); 682 di->di_entries = 0;
702 memset(&di->__pad4, 0, sizeof(di->__pad4)); 683 memset(&di->__pad4, 0, sizeof(di->__pad4));
703 di->di_eattr = cpu_to_be64(0); 684 di->di_eattr = 0;
704 memset(&di->di_reserved, 0, sizeof(di->di_reserved)); 685 memset(&di->di_reserved, 0, sizeof(di->di_reserved));
705 686
706 brelse(dibh); 687 brelse(dibh);
707} 688}
708 689
709static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, 690static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
710 unsigned int mode, const struct gfs2_inum *inum, 691 unsigned int mode, const struct gfs2_inum_host *inum,
711 const u64 *generation) 692 const u64 *generation, dev_t dev)
712{ 693{
713 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 694 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
714 unsigned int uid, gid; 695 unsigned int uid, gid;
@@ -729,7 +710,7 @@ static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
729 if (error) 710 if (error)
730 goto out_quota; 711 goto out_quota;
731 712
732 init_dinode(dip, gl, inum, mode, uid, gid, generation); 713 init_dinode(dip, gl, inum, mode, uid, gid, generation, dev);
733 gfs2_quota_change(dip, +1, uid, gid); 714 gfs2_quota_change(dip, +1, uid, gid);
734 gfs2_trans_end(sdp); 715 gfs2_trans_end(sdp);
735 716
@@ -759,8 +740,7 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
759 if (alloc_required < 0) 740 if (alloc_required < 0)
760 goto fail; 741 goto fail;
761 if (alloc_required) { 742 if (alloc_required) {
762 error = gfs2_quota_check(dip, dip->i_di.di_uid, 743 error = gfs2_quota_check(dip, dip->i_inode.i_uid, dip->i_inode.i_gid);
763 dip->i_di.di_gid);
764 if (error) 744 if (error)
765 goto fail_quota_locks; 745 goto fail_quota_locks;
766 746
@@ -782,16 +762,16 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
782 goto fail_quota_locks; 762 goto fail_quota_locks;
783 } 763 }
784 764
785 error = gfs2_dir_add(&dip->i_inode, name, &ip->i_num, IF2DT(ip->i_di.di_mode)); 765 error = gfs2_dir_add(&dip->i_inode, name, &ip->i_num, IF2DT(ip->i_inode.i_mode));
786 if (error) 766 if (error)
787 goto fail_end_trans; 767 goto fail_end_trans;
788 768
789 error = gfs2_meta_inode_buffer(ip, &dibh); 769 error = gfs2_meta_inode_buffer(ip, &dibh);
790 if (error) 770 if (error)
791 goto fail_end_trans; 771 goto fail_end_trans;
792 ip->i_di.di_nlink = 1; 772 ip->i_inode.i_nlink = 1;
793 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 773 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
794 gfs2_dinode_out(&ip->i_di, dibh->b_data); 774 gfs2_dinode_out(ip, dibh->b_data);
795 brelse(dibh); 775 brelse(dibh);
796 return 0; 776 return 0;
797 777
@@ -860,13 +840,13 @@ static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip)
860 */ 840 */
861 841
862struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name, 842struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
863 unsigned int mode) 843 unsigned int mode, dev_t dev)
864{ 844{
865 struct inode *inode; 845 struct inode *inode;
866 struct gfs2_inode *dip = ghs->gh_gl->gl_object; 846 struct gfs2_inode *dip = ghs->gh_gl->gl_object;
867 struct inode *dir = &dip->i_inode; 847 struct inode *dir = &dip->i_inode;
868 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 848 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
869 struct gfs2_inum inum; 849 struct gfs2_inum_host inum;
870 int error; 850 int error;
871 u64 generation; 851 u64 generation;
872 852
@@ -890,35 +870,12 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
890 if (error) 870 if (error)
891 goto fail_gunlock; 871 goto fail_gunlock;
892 872
893 if (inum.no_addr < dip->i_num.no_addr) { 873 error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops,
894 gfs2_glock_dq(ghs); 874 LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
895 875 if (error)
896 error = gfs2_glock_nq_num(sdp, inum.no_addr, 876 goto fail_gunlock;
897 &gfs2_inode_glops, LM_ST_EXCLUSIVE,
898 GL_SKIP, ghs + 1);
899 if (error) {
900 return ERR_PTR(error);
901 }
902
903 gfs2_holder_reinit(LM_ST_EXCLUSIVE, 0, ghs);
904 error = gfs2_glock_nq(ghs);
905 if (error) {
906 gfs2_glock_dq_uninit(ghs + 1);
907 return ERR_PTR(error);
908 }
909
910 error = create_ok(dip, name, mode);
911 if (error)
912 goto fail_gunlock2;
913 } else {
914 error = gfs2_glock_nq_num(sdp, inum.no_addr,
915 &gfs2_inode_glops, LM_ST_EXCLUSIVE,
916 GL_SKIP, ghs + 1);
917 if (error)
918 goto fail_gunlock;
919 }
920 877
921 error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation); 878 error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev);
922 if (error) 879 if (error)
923 goto fail_gunlock2; 880 goto fail_gunlock2;
924 881
@@ -975,7 +932,7 @@ int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
975 932
976 if (ip->i_di.di_entries != 2) { 933 if (ip->i_di.di_entries != 2) {
977 if (gfs2_consist_inode(ip)) 934 if (gfs2_consist_inode(ip))
978 gfs2_dinode_print(&ip->i_di); 935 gfs2_dinode_print(ip);
979 return -EIO; 936 return -EIO;
980 } 937 }
981 938
@@ -997,7 +954,12 @@ int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
997 if (error) 954 if (error)
998 return error; 955 return error;
999 956
1000 error = gfs2_change_nlink(ip, -2); 957 /* It looks odd, but it really should be done twice */
958 error = gfs2_change_nlink(ip, -1);
959 if (error)
960 return error;
961
962 error = gfs2_change_nlink(ip, -1);
1001 if (error) 963 if (error)
1002 return error; 964 return error;
1003 965
@@ -1018,16 +980,16 @@ int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
1018int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name, 980int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
1019 struct gfs2_inode *ip) 981 struct gfs2_inode *ip)
1020{ 982{
1021 struct gfs2_inum inum; 983 struct gfs2_inum_host inum;
1022 unsigned int type; 984 unsigned int type;
1023 int error; 985 int error;
1024 986
1025 if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode)) 987 if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode))
1026 return -EPERM; 988 return -EPERM;
1027 989
1028 if ((dip->i_di.di_mode & S_ISVTX) && 990 if ((dip->i_inode.i_mode & S_ISVTX) &&
1029 dip->i_di.di_uid != current->fsuid && 991 dip->i_inode.i_uid != current->fsuid &&
1030 ip->i_di.di_uid != current->fsuid && !capable(CAP_FOWNER)) 992 ip->i_inode.i_uid != current->fsuid && !capable(CAP_FOWNER))
1031 return -EPERM; 993 return -EPERM;
1032 994
1033 if (IS_APPEND(&dip->i_inode)) 995 if (IS_APPEND(&dip->i_inode))
@@ -1044,7 +1006,7 @@ int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
1044 if (!gfs2_inum_equal(&inum, &ip->i_num)) 1006 if (!gfs2_inum_equal(&inum, &ip->i_num))
1045 return -ENOENT; 1007 return -ENOENT;
1046 1008
1047 if (IF2DT(ip->i_di.di_mode) != type) { 1009 if (IF2DT(ip->i_inode.i_mode) != type) {
1048 gfs2_consist_inode(dip); 1010 gfs2_consist_inode(dip);
1049 return -EIO; 1011 return -EIO;
1050 } 1012 }
@@ -1194,7 +1156,7 @@ int gfs2_glock_nq_atime(struct gfs2_holder *gh)
1194 return 0; 1156 return 0;
1195 1157
1196 curtime = get_seconds(); 1158 curtime = get_seconds();
1197 if (curtime - ip->i_di.di_atime >= quantum) { 1159 if (curtime - ip->i_inode.i_atime.tv_sec >= quantum) {
1198 gfs2_glock_dq(gh); 1160 gfs2_glock_dq(gh);
1199 gfs2_holder_reinit(LM_ST_EXCLUSIVE, gh->gh_flags & ~LM_FLAG_ANY, 1161 gfs2_holder_reinit(LM_ST_EXCLUSIVE, gh->gh_flags & ~LM_FLAG_ANY,
1200 gh); 1162 gh);
@@ -1206,7 +1168,7 @@ int gfs2_glock_nq_atime(struct gfs2_holder *gh)
1206 trying to get exclusive lock. */ 1168 trying to get exclusive lock. */
1207 1169
1208 curtime = get_seconds(); 1170 curtime = get_seconds();
1209 if (curtime - ip->i_di.di_atime >= quantum) { 1171 if (curtime - ip->i_inode.i_atime.tv_sec >= quantum) {
1210 struct buffer_head *dibh; 1172 struct buffer_head *dibh;
1211 struct gfs2_dinode *di; 1173 struct gfs2_dinode *di;
1212 1174
@@ -1220,11 +1182,11 @@ int gfs2_glock_nq_atime(struct gfs2_holder *gh)
1220 if (error) 1182 if (error)
1221 goto fail_end_trans; 1183 goto fail_end_trans;
1222 1184
1223 ip->i_di.di_atime = curtime; 1185 ip->i_inode.i_atime.tv_sec = curtime;
1224 1186
1225 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 1187 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
1226 di = (struct gfs2_dinode *)dibh->b_data; 1188 di = (struct gfs2_dinode *)dibh->b_data;
1227 di->di_atime = cpu_to_be64(ip->i_di.di_atime); 1189 di->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
1228 brelse(dibh); 1190 brelse(dibh);
1229 1191
1230 gfs2_trans_end(sdp); 1192 gfs2_trans_end(sdp);
@@ -1249,92 +1211,6 @@ fail:
1249 return error; 1211 return error;
1250} 1212}
1251 1213
1252/**
1253 * glock_compare_atime - Compare two struct gfs2_glock structures for sort
1254 * @arg_a: the first structure
1255 * @arg_b: the second structure
1256 *
1257 * Returns: 1 if A > B
1258 * -1 if A < B
1259 * 0 if A == B
1260 */
1261
1262static int glock_compare_atime(const void *arg_a, const void *arg_b)
1263{
1264 const struct gfs2_holder *gh_a = *(const struct gfs2_holder **)arg_a;
1265 const struct gfs2_holder *gh_b = *(const struct gfs2_holder **)arg_b;
1266 const struct lm_lockname *a = &gh_a->gh_gl->gl_name;
1267 const struct lm_lockname *b = &gh_b->gh_gl->gl_name;
1268
1269 if (a->ln_number > b->ln_number)
1270 return 1;
1271 if (a->ln_number < b->ln_number)
1272 return -1;
1273 if (gh_a->gh_state == LM_ST_SHARED && gh_b->gh_state == LM_ST_EXCLUSIVE)
1274 return 1;
1275 if (gh_a->gh_state == LM_ST_SHARED && (gh_b->gh_flags & GL_ATIME))
1276 return 1;
1277
1278 return 0;
1279}
1280
1281/**
1282 * gfs2_glock_nq_m_atime - acquire multiple glocks where one may need an
1283 * atime update
1284 * @num_gh: the number of structures
1285 * @ghs: an array of struct gfs2_holder structures
1286 *
1287 * Returns: 0 on success (all glocks acquired),
1288 * errno on failure (no glocks acquired)
1289 */
1290
1291int gfs2_glock_nq_m_atime(unsigned int num_gh, struct gfs2_holder *ghs)
1292{
1293 struct gfs2_holder **p;
1294 unsigned int x;
1295 int error = 0;
1296
1297 if (!num_gh)
1298 return 0;
1299
1300 if (num_gh == 1) {
1301 ghs->gh_flags &= ~(LM_FLAG_TRY | GL_ASYNC);
1302 if (ghs->gh_flags & GL_ATIME)
1303 error = gfs2_glock_nq_atime(ghs);
1304 else
1305 error = gfs2_glock_nq(ghs);
1306 return error;
1307 }
1308
1309 p = kcalloc(num_gh, sizeof(struct gfs2_holder *), GFP_KERNEL);
1310 if (!p)
1311 return -ENOMEM;
1312
1313 for (x = 0; x < num_gh; x++)
1314 p[x] = &ghs[x];
1315
1316 sort(p, num_gh, sizeof(struct gfs2_holder *), glock_compare_atime,NULL);
1317
1318 for (x = 0; x < num_gh; x++) {
1319 p[x]->gh_flags &= ~(LM_FLAG_TRY | GL_ASYNC);
1320
1321 if (p[x]->gh_flags & GL_ATIME)
1322 error = gfs2_glock_nq_atime(p[x]);
1323 else
1324 error = gfs2_glock_nq(p[x]);
1325
1326 if (error) {
1327 while (x--)
1328 gfs2_glock_dq(p[x]);
1329 break;
1330 }
1331 }
1332
1333 kfree(p);
1334 return error;
1335}
1336
1337
1338static int 1214static int
1339__gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) 1215__gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
1340{ 1216{
@@ -1345,10 +1221,8 @@ __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
1345 if (!error) { 1221 if (!error) {
1346 error = inode_setattr(&ip->i_inode, attr); 1222 error = inode_setattr(&ip->i_inode, attr);
1347 gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error); 1223 gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error);
1348 gfs2_inode_attr_out(ip);
1349
1350 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 1224 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
1351 gfs2_dinode_out(&ip->i_di, dibh->b_data); 1225 gfs2_dinode_out(ip, dibh->b_data);
1352 brelse(dibh); 1226 brelse(dibh);
1353 } 1227 }
1354 return error; 1228 return error;