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Diffstat (limited to 'fs/gfs2/dir.c')
-rw-r--r--fs/gfs2/dir.c93
1 files changed, 52 insertions, 41 deletions
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index e24af28b1a12..0fdcb7713cd9 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -131,8 +131,8 @@ static int gfs2_dir_write_stuffed(struct gfs2_inode *ip, const char *buf,
131 memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size); 131 memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size);
132 if (ip->i_di.di_size < offset + size) 132 if (ip->i_di.di_size < offset + size)
133 ip->i_di.di_size = offset + size; 133 ip->i_di.di_size = offset + size;
134 ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds(); 134 ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
135 gfs2_dinode_out(&ip->i_di, dibh->b_data); 135 gfs2_dinode_out(ip, dibh->b_data);
136 136
137 brelse(dibh); 137 brelse(dibh);
138 138
@@ -229,10 +229,10 @@ out:
229 229
230 if (ip->i_di.di_size < offset + copied) 230 if (ip->i_di.di_size < offset + copied)
231 ip->i_di.di_size = offset + copied; 231 ip->i_di.di_size = offset + copied;
232 ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds(); 232 ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
233 233
234 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 234 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
235 gfs2_dinode_out(&ip->i_di, dibh->b_data); 235 gfs2_dinode_out(ip, dibh->b_data);
236 brelse(dibh); 236 brelse(dibh);
237 237
238 return copied; 238 return copied;
@@ -340,10 +340,15 @@ fail:
340 return (copied) ? copied : error; 340 return (copied) ? copied : error;
341} 341}
342 342
343static inline int gfs2_dirent_sentinel(const struct gfs2_dirent *dent)
344{
345 return dent->de_inum.no_addr == 0 || dent->de_inum.no_formal_ino == 0;
346}
347
343static inline int __gfs2_dirent_find(const struct gfs2_dirent *dent, 348static inline int __gfs2_dirent_find(const struct gfs2_dirent *dent,
344 const struct qstr *name, int ret) 349 const struct qstr *name, int ret)
345{ 350{
346 if (dent->de_inum.no_addr != 0 && 351 if (!gfs2_dirent_sentinel(dent) &&
347 be32_to_cpu(dent->de_hash) == name->hash && 352 be32_to_cpu(dent->de_hash) == name->hash &&
348 be16_to_cpu(dent->de_name_len) == name->len && 353 be16_to_cpu(dent->de_name_len) == name->len &&
349 memcmp(dent+1, name->name, name->len) == 0) 354 memcmp(dent+1, name->name, name->len) == 0)
@@ -388,7 +393,7 @@ static int gfs2_dirent_find_space(const struct gfs2_dirent *dent,
388 unsigned actual = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len)); 393 unsigned actual = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len));
389 unsigned totlen = be16_to_cpu(dent->de_rec_len); 394 unsigned totlen = be16_to_cpu(dent->de_rec_len);
390 395
391 if (!dent->de_inum.no_addr) 396 if (gfs2_dirent_sentinel(dent))
392 actual = GFS2_DIRENT_SIZE(0); 397 actual = GFS2_DIRENT_SIZE(0);
393 if (totlen - actual >= required) 398 if (totlen - actual >= required)
394 return 1; 399 return 1;
@@ -405,7 +410,7 @@ static int gfs2_dirent_gather(const struct gfs2_dirent *dent,
405 void *opaque) 410 void *opaque)
406{ 411{
407 struct dirent_gather *g = opaque; 412 struct dirent_gather *g = opaque;
408 if (dent->de_inum.no_addr) { 413 if (!gfs2_dirent_sentinel(dent)) {
409 g->pdent[g->offset++] = dent; 414 g->pdent[g->offset++] = dent;
410 } 415 }
411 return 0; 416 return 0;
@@ -433,10 +438,10 @@ static int gfs2_check_dirent(struct gfs2_dirent *dent, unsigned int offset,
433 if (unlikely(offset + size > len)) 438 if (unlikely(offset + size > len))
434 goto error; 439 goto error;
435 msg = "zero inode number"; 440 msg = "zero inode number";
436 if (unlikely(!first && !dent->de_inum.no_addr)) 441 if (unlikely(!first && gfs2_dirent_sentinel(dent)))
437 goto error; 442 goto error;
438 msg = "name length is greater than space in dirent"; 443 msg = "name length is greater than space in dirent";
439 if (dent->de_inum.no_addr && 444 if (!gfs2_dirent_sentinel(dent) &&
440 unlikely(sizeof(struct gfs2_dirent)+be16_to_cpu(dent->de_name_len) > 445 unlikely(sizeof(struct gfs2_dirent)+be16_to_cpu(dent->de_name_len) >
441 size)) 446 size))
442 goto error; 447 goto error;
@@ -598,7 +603,7 @@ static int dirent_next(struct gfs2_inode *dip, struct buffer_head *bh,
598 return ret; 603 return ret;
599 604
600 /* Only the first dent could ever have de_inum.no_addr == 0 */ 605 /* Only the first dent could ever have de_inum.no_addr == 0 */
601 if (!tmp->de_inum.no_addr) { 606 if (gfs2_dirent_sentinel(tmp)) {
602 gfs2_consist_inode(dip); 607 gfs2_consist_inode(dip);
603 return -EIO; 608 return -EIO;
604 } 609 }
@@ -621,7 +626,7 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh,
621{ 626{
622 u16 cur_rec_len, prev_rec_len; 627 u16 cur_rec_len, prev_rec_len;
623 628
624 if (!cur->de_inum.no_addr) { 629 if (gfs2_dirent_sentinel(cur)) {
625 gfs2_consist_inode(dip); 630 gfs2_consist_inode(dip);
626 return; 631 return;
627 } 632 }
@@ -633,7 +638,8 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh,
633 out the inode number and return. */ 638 out the inode number and return. */
634 639
635 if (!prev) { 640 if (!prev) {
636 cur->de_inum.no_addr = 0; /* No endianess worries */ 641 cur->de_inum.no_addr = 0;
642 cur->de_inum.no_formal_ino = 0;
637 return; 643 return;
638 } 644 }
639 645
@@ -664,7 +670,7 @@ static struct gfs2_dirent *gfs2_init_dirent(struct inode *inode,
664 struct gfs2_dirent *ndent; 670 struct gfs2_dirent *ndent;
665 unsigned offset = 0, totlen; 671 unsigned offset = 0, totlen;
666 672
667 if (dent->de_inum.no_addr) 673 if (!gfs2_dirent_sentinel(dent))
668 offset = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len)); 674 offset = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len));
669 totlen = be16_to_cpu(dent->de_rec_len); 675 totlen = be16_to_cpu(dent->de_rec_len);
670 BUG_ON(offset + name->len > totlen); 676 BUG_ON(offset + name->len > totlen);
@@ -713,12 +719,12 @@ static int get_leaf(struct gfs2_inode *dip, u64 leaf_no,
713static int get_leaf_nr(struct gfs2_inode *dip, u32 index, 719static int get_leaf_nr(struct gfs2_inode *dip, u32 index,
714 u64 *leaf_out) 720 u64 *leaf_out)
715{ 721{
716 u64 leaf_no; 722 __be64 leaf_no;
717 int error; 723 int error;
718 724
719 error = gfs2_dir_read_data(dip, (char *)&leaf_no, 725 error = gfs2_dir_read_data(dip, (char *)&leaf_no,
720 index * sizeof(u64), 726 index * sizeof(__be64),
721 sizeof(u64), 0); 727 sizeof(__be64), 0);
722 if (error != sizeof(u64)) 728 if (error != sizeof(u64))
723 return (error < 0) ? error : -EIO; 729 return (error < 0) ? error : -EIO;
724 730
@@ -837,7 +843,8 @@ static int dir_make_exhash(struct inode *inode)
837 struct gfs2_leaf *leaf; 843 struct gfs2_leaf *leaf;
838 int y; 844 int y;
839 u32 x; 845 u32 x;
840 u64 *lp, bn; 846 __be64 *lp;
847 u64 bn;
841 int error; 848 int error;
842 849
843 error = gfs2_meta_inode_buffer(dip, &dibh); 850 error = gfs2_meta_inode_buffer(dip, &dibh);
@@ -893,20 +900,20 @@ static int dir_make_exhash(struct inode *inode)
893 gfs2_trans_add_bh(dip->i_gl, dibh, 1); 900 gfs2_trans_add_bh(dip->i_gl, dibh, 1);
894 gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode)); 901 gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
895 902
896 lp = (u64 *)(dibh->b_data + sizeof(struct gfs2_dinode)); 903 lp = (__be64 *)(dibh->b_data + sizeof(struct gfs2_dinode));
897 904
898 for (x = sdp->sd_hash_ptrs; x--; lp++) 905 for (x = sdp->sd_hash_ptrs; x--; lp++)
899 *lp = cpu_to_be64(bn); 906 *lp = cpu_to_be64(bn);
900 907
901 dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2; 908 dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
902 dip->i_di.di_blocks++; 909 dip->i_di.di_blocks++;
910 gfs2_set_inode_blocks(&dip->i_inode);
903 dip->i_di.di_flags |= GFS2_DIF_EXHASH; 911 dip->i_di.di_flags |= GFS2_DIF_EXHASH;
904 dip->i_di.di_payload_format = 0;
905 912
906 for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ; 913 for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
907 dip->i_di.di_depth = y; 914 dip->i_di.di_depth = y;
908 915
909 gfs2_dinode_out(&dip->i_di, dibh->b_data); 916 gfs2_dinode_out(dip, dibh->b_data);
910 917
911 brelse(dibh); 918 brelse(dibh);
912 919
@@ -929,7 +936,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
929 struct gfs2_leaf *nleaf, *oleaf; 936 struct gfs2_leaf *nleaf, *oleaf;
930 struct gfs2_dirent *dent = NULL, *prev = NULL, *next = NULL, *new; 937 struct gfs2_dirent *dent = NULL, *prev = NULL, *next = NULL, *new;
931 u32 start, len, half_len, divider; 938 u32 start, len, half_len, divider;
932 u64 bn, *lp, leaf_no; 939 u64 bn, leaf_no;
940 __be64 *lp;
933 u32 index; 941 u32 index;
934 int x, moved = 0; 942 int x, moved = 0;
935 int error; 943 int error;
@@ -974,7 +982,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
974 /* Change the pointers. 982 /* Change the pointers.
975 Don't bother distinguishing stuffed from non-stuffed. 983 Don't bother distinguishing stuffed from non-stuffed.
976 This code is complicated enough already. */ 984 This code is complicated enough already. */
977 lp = kmalloc(half_len * sizeof(u64), GFP_NOFS | __GFP_NOFAIL); 985 lp = kmalloc(half_len * sizeof(__be64), GFP_NOFS | __GFP_NOFAIL);
978 /* Change the pointers */ 986 /* Change the pointers */
979 for (x = 0; x < half_len; x++) 987 for (x = 0; x < half_len; x++)
980 lp[x] = cpu_to_be64(bn); 988 lp[x] = cpu_to_be64(bn);
@@ -1000,7 +1008,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
1000 if (dirent_next(dip, obh, &next)) 1008 if (dirent_next(dip, obh, &next))
1001 next = NULL; 1009 next = NULL;
1002 1010
1003 if (dent->de_inum.no_addr && 1011 if (!gfs2_dirent_sentinel(dent) &&
1004 be32_to_cpu(dent->de_hash) < divider) { 1012 be32_to_cpu(dent->de_hash) < divider) {
1005 struct qstr str; 1013 struct qstr str;
1006 str.name = (char*)(dent+1); 1014 str.name = (char*)(dent+1);
@@ -1037,7 +1045,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
1037 error = gfs2_meta_inode_buffer(dip, &dibh); 1045 error = gfs2_meta_inode_buffer(dip, &dibh);
1038 if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) { 1046 if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) {
1039 dip->i_di.di_blocks++; 1047 dip->i_di.di_blocks++;
1040 gfs2_dinode_out(&dip->i_di, dibh->b_data); 1048 gfs2_set_inode_blocks(&dip->i_inode);
1049 gfs2_dinode_out(dip, dibh->b_data);
1041 brelse(dibh); 1050 brelse(dibh);
1042 } 1051 }
1043 1052
@@ -1117,7 +1126,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
1117 error = gfs2_meta_inode_buffer(dip, &dibh); 1126 error = gfs2_meta_inode_buffer(dip, &dibh);
1118 if (!gfs2_assert_withdraw(sdp, !error)) { 1127 if (!gfs2_assert_withdraw(sdp, !error)) {
1119 dip->i_di.di_depth++; 1128 dip->i_di.di_depth++;
1120 gfs2_dinode_out(&dip->i_di, dibh->b_data); 1129 gfs2_dinode_out(dip, dibh->b_data);
1121 brelse(dibh); 1130 brelse(dibh);
1122 } 1131 }
1123 1132
@@ -1194,7 +1203,7 @@ static int do_filldir_main(struct gfs2_inode *dip, u64 *offset,
1194 int *copied) 1203 int *copied)
1195{ 1204{
1196 const struct gfs2_dirent *dent, *dent_next; 1205 const struct gfs2_dirent *dent, *dent_next;
1197 struct gfs2_inum inum; 1206 struct gfs2_inum_host inum;
1198 u64 off, off_next; 1207 u64 off, off_next;
1199 unsigned int x, y; 1208 unsigned int x, y;
1200 int run = 0; 1209 int run = 0;
@@ -1341,7 +1350,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
1341 u32 hsize, len = 0; 1350 u32 hsize, len = 0;
1342 u32 ht_offset, lp_offset, ht_offset_cur = -1; 1351 u32 ht_offset, lp_offset, ht_offset_cur = -1;
1343 u32 hash, index; 1352 u32 hash, index;
1344 u64 *lp; 1353 __be64 *lp;
1345 int copied = 0; 1354 int copied = 0;
1346 int error = 0; 1355 int error = 0;
1347 unsigned depth = 0; 1356 unsigned depth = 0;
@@ -1365,7 +1374,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
1365 1374
1366 if (ht_offset_cur != ht_offset) { 1375 if (ht_offset_cur != ht_offset) {
1367 error = gfs2_dir_read_data(dip, (char *)lp, 1376 error = gfs2_dir_read_data(dip, (char *)lp,
1368 ht_offset * sizeof(u64), 1377 ht_offset * sizeof(__be64),
1369 sdp->sd_hash_bsize, 1); 1378 sdp->sd_hash_bsize, 1);
1370 if (error != sdp->sd_hash_bsize) { 1379 if (error != sdp->sd_hash_bsize) {
1371 if (error >= 0) 1380 if (error >= 0)
@@ -1456,7 +1465,7 @@ out:
1456 */ 1465 */
1457 1466
1458int gfs2_dir_search(struct inode *dir, const struct qstr *name, 1467int gfs2_dir_search(struct inode *dir, const struct qstr *name,
1459 struct gfs2_inum *inum, unsigned int *type) 1468 struct gfs2_inum_host *inum, unsigned int *type)
1460{ 1469{
1461 struct buffer_head *bh; 1470 struct buffer_head *bh;
1462 struct gfs2_dirent *dent; 1471 struct gfs2_dirent *dent;
@@ -1515,7 +1524,8 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
1515 return error; 1524 return error;
1516 gfs2_trans_add_bh(ip->i_gl, bh, 1); 1525 gfs2_trans_add_bh(ip->i_gl, bh, 1);
1517 ip->i_di.di_blocks++; 1526 ip->i_di.di_blocks++;
1518 gfs2_dinode_out(&ip->i_di, bh->b_data); 1527 gfs2_set_inode_blocks(&ip->i_inode);
1528 gfs2_dinode_out(ip, bh->b_data);
1519 brelse(bh); 1529 brelse(bh);
1520 return 0; 1530 return 0;
1521} 1531}
@@ -1531,7 +1541,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
1531 */ 1541 */
1532 1542
1533int gfs2_dir_add(struct inode *inode, const struct qstr *name, 1543int gfs2_dir_add(struct inode *inode, const struct qstr *name,
1534 const struct gfs2_inum *inum, unsigned type) 1544 const struct gfs2_inum_host *inum, unsigned type)
1535{ 1545{
1536 struct gfs2_inode *ip = GFS2_I(inode); 1546 struct gfs2_inode *ip = GFS2_I(inode);
1537 struct buffer_head *bh; 1547 struct buffer_head *bh;
@@ -1558,8 +1568,8 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
1558 break; 1568 break;
1559 gfs2_trans_add_bh(ip->i_gl, bh, 1); 1569 gfs2_trans_add_bh(ip->i_gl, bh, 1);
1560 ip->i_di.di_entries++; 1570 ip->i_di.di_entries++;
1561 ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds(); 1571 ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
1562 gfs2_dinode_out(&ip->i_di, bh->b_data); 1572 gfs2_dinode_out(ip, bh->b_data);
1563 brelse(bh); 1573 brelse(bh);
1564 error = 0; 1574 error = 0;
1565 break; 1575 break;
@@ -1644,8 +1654,8 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
1644 gfs2_consist_inode(dip); 1654 gfs2_consist_inode(dip);
1645 gfs2_trans_add_bh(dip->i_gl, bh, 1); 1655 gfs2_trans_add_bh(dip->i_gl, bh, 1);
1646 dip->i_di.di_entries--; 1656 dip->i_di.di_entries--;
1647 dip->i_di.di_mtime = dip->i_di.di_ctime = get_seconds(); 1657 dip->i_inode.i_mtime.tv_sec = dip->i_inode.i_ctime.tv_sec = get_seconds();
1648 gfs2_dinode_out(&dip->i_di, bh->b_data); 1658 gfs2_dinode_out(dip, bh->b_data);
1649 brelse(bh); 1659 brelse(bh);
1650 mark_inode_dirty(&dip->i_inode); 1660 mark_inode_dirty(&dip->i_inode);
1651 1661
@@ -1666,7 +1676,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
1666 */ 1676 */
1667 1677
1668int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, 1678int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
1669 struct gfs2_inum *inum, unsigned int new_type) 1679 struct gfs2_inum_host *inum, unsigned int new_type)
1670{ 1680{
1671 struct buffer_head *bh; 1681 struct buffer_head *bh;
1672 struct gfs2_dirent *dent; 1682 struct gfs2_dirent *dent;
@@ -1692,8 +1702,8 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
1692 gfs2_trans_add_bh(dip->i_gl, bh, 1); 1702 gfs2_trans_add_bh(dip->i_gl, bh, 1);
1693 } 1703 }
1694 1704
1695 dip->i_di.di_mtime = dip->i_di.di_ctime = get_seconds(); 1705 dip->i_inode.i_mtime.tv_sec = dip->i_inode.i_ctime.tv_sec = get_seconds();
1696 gfs2_dinode_out(&dip->i_di, bh->b_data); 1706 gfs2_dinode_out(dip, bh->b_data);
1697 brelse(bh); 1707 brelse(bh);
1698 return 0; 1708 return 0;
1699} 1709}
@@ -1715,7 +1725,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
1715 u32 hsize, len; 1725 u32 hsize, len;
1716 u32 ht_offset, lp_offset, ht_offset_cur = -1; 1726 u32 ht_offset, lp_offset, ht_offset_cur = -1;
1717 u32 index = 0; 1727 u32 index = 0;
1718 u64 *lp; 1728 __be64 *lp;
1719 u64 leaf_no; 1729 u64 leaf_no;
1720 int error = 0; 1730 int error = 0;
1721 1731
@@ -1735,7 +1745,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
1735 1745
1736 if (ht_offset_cur != ht_offset) { 1746 if (ht_offset_cur != ht_offset) {
1737 error = gfs2_dir_read_data(dip, (char *)lp, 1747 error = gfs2_dir_read_data(dip, (char *)lp,
1738 ht_offset * sizeof(u64), 1748 ht_offset * sizeof(__be64),
1739 sdp->sd_hash_bsize, 1); 1749 sdp->sd_hash_bsize, 1);
1740 if (error != sdp->sd_hash_bsize) { 1750 if (error != sdp->sd_hash_bsize) {
1741 if (error >= 0) 1751 if (error >= 0)
@@ -1859,6 +1869,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
1859 if (!dip->i_di.di_blocks) 1869 if (!dip->i_di.di_blocks)
1860 gfs2_consist_inode(dip); 1870 gfs2_consist_inode(dip);
1861 dip->i_di.di_blocks--; 1871 dip->i_di.di_blocks--;
1872 gfs2_set_inode_blocks(&dip->i_inode);
1862 } 1873 }
1863 1874
1864 error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size); 1875 error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size);
@@ -1873,7 +1884,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
1873 goto out_end_trans; 1884 goto out_end_trans;
1874 1885
1875 gfs2_trans_add_bh(dip->i_gl, dibh, 1); 1886 gfs2_trans_add_bh(dip->i_gl, dibh, 1);
1876 gfs2_dinode_out(&dip->i_di, dibh->b_data); 1887 gfs2_dinode_out(dip, dibh->b_data);
1877 brelse(dibh); 1888 brelse(dibh);
1878 1889
1879out_end_trans: 1890out_end_trans: