Lines Matching +full:rc +full:- +full:map +full:- +full:name
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) International Business Machines Corp., 2000-2004
7 * jfs_imap.c: inode allocation map manager
16 * There is also a inode lock for the inode map inode. A read lock needs to
17 * be taken whenever an IAG is read from the map or the global level
26 * The control page of the inode map is read into memory by diMount().
51 #define IAGFREE_LOCK_INIT(imap) mutex_init(&imap->im_freelock)
52 #define IAGFREE_LOCK(imap) mutex_lock(&imap->im_freelock)
53 #define IAGFREE_UNLOCK(imap) mutex_unlock(&imap->im_freelock)
56 #define AG_LOCK_INIT(imap,index) mutex_init(&(imap->im_aglock[index]))
57 #define AG_LOCK(imap,agno) mutex_lock(&imap->im_aglock[agno])
58 #define AG_UNLOCK(imap,agno) mutex_unlock(&imap->im_aglock[agno])
78 * NAME: diMount()
80 * FUNCTION: initialize the incore inode map control structures for
83 * the inode map's control structure (dinomap) is
87 * ipimap - pointer to inode map inode for the aggregate or fileset.
90 * 0 - success
91 * -ENOMEM - insufficient free virtual memory.
92 * -EIO - i/o error.
102 * allocate/initialize the in-memory inode map control structure in diMount()
104 /* allocate the in-memory inode map control structure. */ in diMount()
107 return -ENOMEM; in diMount()
109 /* read the on-disk inode map control structure. */ in diMount()
112 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diMount()
116 return -EIO; in diMount()
119 /* copy the on-disk version to the in-memory version. */ in diMount()
120 dinom_le = (struct dinomap_disk *) mp->data; in diMount()
121 imap->im_freeiag = le32_to_cpu(dinom_le->in_freeiag); in diMount()
122 imap->im_nextiag = le32_to_cpu(dinom_le->in_nextiag); in diMount()
123 atomic_set(&imap->im_numinos, le32_to_cpu(dinom_le->in_numinos)); in diMount()
124 atomic_set(&imap->im_numfree, le32_to_cpu(dinom_le->in_numfree)); in diMount()
125 imap->im_nbperiext = le32_to_cpu(dinom_le->in_nbperiext); in diMount()
126 imap->im_l2nbperiext = le32_to_cpu(dinom_le->in_l2nbperiext); in diMount()
128 imap->im_agctl[index].inofree = in diMount()
129 le32_to_cpu(dinom_le->in_agctl[index].inofree); in diMount()
130 imap->im_agctl[index].extfree = in diMount()
131 le32_to_cpu(dinom_le->in_agctl[index].extfree); in diMount()
132 imap->im_agctl[index].numinos = in diMount()
133 le32_to_cpu(dinom_le->in_agctl[index].numinos); in diMount()
134 imap->im_agctl[index].numfree = in diMount()
135 le32_to_cpu(dinom_le->in_agctl[index].numfree); in diMount()
142 * allocate/initialize inode allocation map locks in diMount()
152 /* bind the inode map inode and inode map control structure in diMount()
155 imap->im_ipimap = ipimap; in diMount()
156 JFS_IP(ipimap)->i_imap = imap; in diMount()
163 * NAME: diUnmount()
165 * FUNCTION: write to disk the incore inode map control structures for
169 * ipimap - pointer to inode map inode for the aggregate or fileset.
172 * 0 - success
173 * -ENOMEM - insufficient free virtual memory.
174 * -EIO - i/o error.
178 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diUnmount()
181 * update the on-disk inode map control structure in diUnmount()
190 truncate_inode_pages(ipimap->i_mapping, 0); in diUnmount()
193 * free in-memory control structure in diUnmount()
196 JFS_IP(ipimap)->i_imap = NULL; in diUnmount()
208 struct inomap *imp = JFS_IP(ipimap)->i_imap; in diSync()
215 /* read the on-disk inode map control structure */ in diSync()
217 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diSync()
221 return -EIO; in diSync()
224 /* copy the in-memory version to the on-disk version */ in diSync()
225 dinom_le = (struct dinomap_disk *) mp->data; in diSync()
226 dinom_le->in_freeiag = cpu_to_le32(imp->im_freeiag); in diSync()
227 dinom_le->in_nextiag = cpu_to_le32(imp->im_nextiag); in diSync()
228 dinom_le->in_numinos = cpu_to_le32(atomic_read(&imp->im_numinos)); in diSync()
229 dinom_le->in_numfree = cpu_to_le32(atomic_read(&imp->im_numfree)); in diSync()
230 dinom_le->in_nbperiext = cpu_to_le32(imp->im_nbperiext); in diSync()
231 dinom_le->in_l2nbperiext = cpu_to_le32(imp->im_l2nbperiext); in diSync()
233 dinom_le->in_agctl[index].inofree = in diSync()
234 cpu_to_le32(imp->im_agctl[index].inofree); in diSync()
235 dinom_le->in_agctl[index].extfree = in diSync()
236 cpu_to_le32(imp->im_agctl[index].extfree); in diSync()
237 dinom_le->in_agctl[index].numinos = in diSync()
238 cpu_to_le32(imp->im_agctl[index].numinos); in diSync()
239 dinom_le->in_agctl[index].numfree = in diSync()
240 cpu_to_le32(imp->im_agctl[index].numfree); in diSync()
249 filemap_write_and_wait(ipimap->i_mapping); in diSync()
258 * NAME: diRead()
271 * identified by a NULL inode map inode pointer and are
282 * ip - pointer to incore inode to be initialized from disk.
285 * 0 - success
286 * -EIO - i/o error.
287 * -ENOMEM - insufficient memory
292 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diRead()
293 int iagno, ino, extno, rc; in diRead() local
305 jfs_info("diRead: ino = %ld", ip->i_ino); in diRead()
307 ipimap = sbi->ipimap; in diRead()
308 JFS_IP(ip)->ipimap = ipimap; in diRead()
311 iagno = INOTOIAG(ip->i_ino); in diRead()
315 imap = JFS_IP(ipimap)->i_imap; in diRead()
316 rc = diIAGRead(imap, iagno, &mp); in diRead()
318 if (rc) { in diRead()
319 jfs_err("diRead: diIAGRead returned %d", rc); in diRead()
320 return (rc); in diRead()
323 iagp = (struct iag *) mp->data; in diRead()
326 ino = ip->i_ino & (INOSPERIAG - 1); in diRead()
329 if ((lengthPXD(&iagp->inoext[extno]) != imap->im_nbperiext) || in diRead()
330 (addressPXD(&iagp->inoext[extno]) == 0)) { in diRead()
332 return -ESTALE; in diRead()
338 blkno = INOPBLK(&iagp->inoext[extno], ino, sbi->l2nbperpage); in diRead()
341 agstart = le64_to_cpu(iagp->agstart); in diRead()
345 rel_inode = (ino & (INOSPERPAGE - 1)); in diRead()
346 pageno = blkno >> sbi->l2nbperpage; in diRead()
348 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diRead()
353 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diRead()
356 rel_inode += block_offset << sbi->l2niperblk; in diRead()
359 rel_inode -= inodes_left; in diRead()
364 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diRead()
367 return -EIO; in diRead()
371 dp = (struct dinode *) mp->data; in diRead()
374 if (ip->i_ino != le32_to_cpu(dp->di_number)) { in diRead()
375 jfs_error(ip->i_sb, "i_ino != di_number\n"); in diRead()
376 rc = -EIO; in diRead()
377 } else if (le32_to_cpu(dp->di_nlink) == 0) in diRead()
378 rc = -ESTALE; in diRead()
380 /* copy the disk inode to the in-memory inode */ in diRead()
381 rc = copy_from_dinode(dp, ip); in diRead()
386 JFS_IP(ip)->agstart = agstart; in diRead()
387 JFS_IP(ip)->active_ag = -1; in diRead()
389 return (rc); in diRead()
394 * NAME: diReadSpecial()
402 * inode map, since these inodes are at a fixed location
403 * and in some cases the aggregate inode map isn't initialized
407 * sb - filesystem superblock
408 * inum - aggregate inode number
409 * secondary - 1 if secondary aggregate inode table
412 * new inode - success
413 * NULL - i/o error.
430 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diReadSpecial()
431 JFS_IP(ip)->ipimap = sbi->ipaimap2; in diReadSpecial()
434 JFS_IP(ip)->ipimap = sbi->ipaimap; in diReadSpecial()
439 ip->i_ino = inum; in diReadSpecial()
444 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diReadSpecial()
452 dp = (struct dinode *) (mp->data); in diReadSpecial()
455 /* copy on-disk inode to in-memory inode */ in diReadSpecial()
466 ip->i_mapping->a_ops = &jfs_metapage_aops; in diReadSpecial()
467 mapping_set_gfp_mask(ip->i_mapping, GFP_NOFS); in diReadSpecial()
470 ip->i_flags |= S_NOQUOTA; in diReadSpecial()
472 if ((inum == FILESYSTEM_I) && (JFS_IP(ip)->ipimap == sbi->ipaimap)) { in diReadSpecial()
473 sbi->gengen = le32_to_cpu(dp->di_gengen); in diReadSpecial()
474 sbi->inostamp = le32_to_cpu(dp->di_inostamp); in diReadSpecial()
486 * NAME: diWriteSpecial()
491 * ip - special inode
492 * secondary - 1 if secondary aggregate inode table
499 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWriteSpecial()
502 ino_t inum = ip->i_ino; in diWriteSpecial()
506 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diWriteSpecial()
515 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diWriteSpecial()
522 dp = (struct dinode *) (mp->data); in diWriteSpecial()
525 /* copy on-disk inode to in-memory inode */ in diWriteSpecial()
527 memcpy(&dp->di_xtroot, &JFS_IP(ip)->i_xtroot, 288); in diWriteSpecial()
530 dp->di_gengen = cpu_to_le32(sbi->gengen); in diWriteSpecial()
537 * NAME: diFreeSpecial()
547 filemap_write_and_wait(ip->i_mapping); in diFreeSpecial()
548 truncate_inode_pages(ip->i_mapping, 0); in diFreeSpecial()
555 * NAME: diWrite()
557 * FUNCTION: write the on-disk inode portion of the in-memory inode
558 * to its corresponding on-disk inode.
571 * tid - transacation id
572 * ip - pointer to incore inode to be written to the inode extent.
575 * 0 - success
576 * -EIO - i/o error.
580 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWrite()
582 int rc = 0; in diWrite() local
600 ipimap = jfs_ip->ipimap; in diWrite()
602 ino = ip->i_ino & (INOSPERIAG - 1); in diWrite()
604 if (!addressPXD(&(jfs_ip->ixpxd)) || in diWrite()
605 (lengthPXD(&(jfs_ip->ixpxd)) != in diWrite()
606 JFS_IP(ipimap)->i_imap->im_nbperiext)) { in diWrite()
607 jfs_error(ip->i_sb, "ixpxd invalid\n"); in diWrite()
608 return -EIO; in diWrite()
615 blkno = INOPBLK(&(jfs_ip->ixpxd), ino, sbi->l2nbperpage); in diWrite()
617 rel_inode = (ino & (INOSPERPAGE - 1)); in diWrite()
618 pageno = blkno >> sbi->l2nbperpage; in diWrite()
620 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diWrite()
625 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diWrite()
628 rel_inode += block_offset << sbi->l2niperblk; in diWrite()
631 rel_inode -= inodes_left; in diWrite()
636 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diWrite()
638 return -EIO; in diWrite()
641 dp = (struct dinode *) mp->data; in diWrite()
644 dioffset = (ino & (INOSPERPAGE - 1)) << L2DISIZE; in diWrite()
647 * acquire transaction lock on the on-disk inode; in diWrite()
653 dilinelock = (struct linelock *) & ditlck->lock; in diWrite()
656 * copy btree root from in-memory inode to on-disk inode in diWrite()
658 * (tlock is taken from inline B+-tree root in in-memory in diWrite()
659 * inode when the B+-tree root is updated, which is pointed in diWrite()
660 * by jfs_ip->blid as well as being on tx tlock list) in diWrite()
663 * in in-memory inode, where txLog() will log from, and, in diWrite()
664 * for xtree root, txUpdateMap() will update map and reset in diWrite()
668 if (S_ISDIR(ip->i_mode) && (lid = jfs_ip->xtlid)) { in diWrite()
676 jfs_ip->xtlid = 0; in diWrite()
678 assert(tlck->type & tlckXTREE); in diWrite()
679 tlck->type |= tlckBTROOT; in diWrite()
680 tlck->mp = mp; in diWrite()
681 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
686 p = &jfs_ip->i_xtroot; in diWrite()
687 xp = (xtroot_t *) &dp->di_dirtable; in diWrite()
688 lv = ilinelock->lv; in diWrite()
689 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
690 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
691 lv->length << L2XTSLOTSIZE); in diWrite()
694 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
695 xad = &xp->xad[XTENTRYSTART]; in diWrite()
697 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
698 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
699 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
702 if ((lid = jfs_ip->blid) == 0) in diWrite()
704 jfs_ip->blid = 0; in diWrite()
707 type = tlck->type; in diWrite()
708 tlck->type |= tlckBTROOT; in diWrite()
709 tlck->mp = mp; in diWrite()
710 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
722 p = &jfs_ip->i_xtroot; in diWrite()
723 xp = &dp->di_xtroot; in diWrite()
724 lv = ilinelock->lv; in diWrite()
725 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
726 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
727 lv->length << L2XTSLOTSIZE); in diWrite()
730 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
731 xad = &xp->xad[XTENTRYSTART]; in diWrite()
733 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
734 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
735 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
746 p = (dtpage_t *) &jfs_ip->i_dtroot; in diWrite()
747 xp = (dtpage_t *) & dp->di_dtroot; in diWrite()
748 lv = ilinelock->lv; in diWrite()
749 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
750 memcpy(&xp->slot[lv->offset], &p->slot[lv->offset], in diWrite()
751 lv->length << L2DTSLOTSIZE); in diWrite()
759 * copy inline symlink from in-memory inode to on-disk inode in diWrite()
761 if (S_ISLNK(ip->i_mode) && ip->i_size < IDATASIZE) { in diWrite()
762 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
763 lv->offset = (dioffset + 2 * 128) >> L2INODESLOTSIZE; in diWrite()
764 lv->length = 2; in diWrite()
765 memcpy(&dp->di_inline_all, jfs_ip->i_inline_all, IDATASIZE); in diWrite()
766 dilinelock->index++; in diWrite()
769 * copy inline data from in-memory inode to on-disk inode: in diWrite()
773 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
774 lv->offset = (dioffset + 3 * 128) >> L2INODESLOTSIZE; in diWrite()
775 lv->length = 1; in diWrite()
776 memcpy(&dp->di_inlineea, jfs_ip->i_inline_ea, INODESLOTSIZE); in diWrite()
777 dilinelock->index++; in diWrite()
785 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
786 lv->offset = dioffset >> L2INODESLOTSIZE; in diWrite()
789 lv->length = 2; in diWrite()
790 memcpy(&dp->di_dirtable, &jfs_ip->i_dirtable, 96); in diWrite()
792 lv->length = 1; in diWrite()
793 dilinelock->index++; in diWrite()
795 /* release the buffer holding the updated on-disk inode. in diWrite()
800 return (rc); in diWrite()
805 * NAME: diFree(ip)
807 * FUNCTION: free a specified inode from the inode working map
828 * the inode map's free iag list.
836 * ip - inode to be freed.
839 * 0 - success
840 * -EIO - i/o error.
844 int rc; in diFree() local
845 ino_t inum = ip->i_ino; in diFree()
851 struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; in diFree()
852 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diFree()
870 * the map. in diFree()
872 if (iagno >= imap->im_nextiag) { in diFree()
875 jfs_error(ip->i_sb, "inum = %d, iagno = %d, nextiag = %d\n", in diFree()
876 (uint) inum, iagno, imap->im_nextiag); in diFree()
877 return -EIO; in diFree()
882 agno = BLKTOAG(JFS_IP(ip)->agstart, JFS_SBI(ip->i_sb)); in diFree()
884 /* Lock the AG specific inode map information in diFree()
895 if ((rc = diIAGRead(imap, iagno, &mp))) { in diFree()
898 return (rc); in diFree()
900 iagp = (struct iag *) mp->data; in diFree()
905 ino = inum & (INOSPERIAG - 1); in diFree()
907 bitno = ino & (INOSPEREXT - 1); in diFree()
910 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diFree()
911 jfs_error(ip->i_sb, "wmap shows inode already free\n"); in diFree()
914 if (!addressPXD(&iagp->inoext[extno])) { in diFree()
918 jfs_error(ip->i_sb, "invalid inoext\n"); in diFree()
919 return -EIO; in diFree()
924 bitmap = le32_to_cpu(iagp->wmap[extno]) & ~mask; in diFree()
926 if (imap->im_agctl[agno].numfree > imap->im_agctl[agno].numinos) { in diFree()
930 jfs_error(ip->i_sb, "numfree > numinos\n"); in diFree()
931 return -EIO; in diFree()
938 imap->im_agctl[agno].numfree < 96 || in diFree()
939 (imap->im_agctl[agno].numfree < 288 && in diFree()
940 (((imap->im_agctl[agno].numfree * 100) / in diFree()
941 imap->im_agctl[agno].numinos) <= 25))) { in diFree()
946 if (iagp->nfreeinos == 0) { in diFree()
952 if ((fwd = imap->im_agctl[agno].inofree) >= 0) { in diFree()
956 if ((rc = diIAGRead(imap, fwd, &))) { in diFree()
960 return (rc); in diFree()
962 aiagp = (struct iag *) amp->data; in diFree()
966 aiagp->inofreeback = cpu_to_le32(iagno); in diFree()
974 iagp->inofreefwd = in diFree()
975 cpu_to_le32(imap->im_agctl[agno].inofree); in diFree()
976 iagp->inofreeback = cpu_to_le32(-1); in diFree()
977 imap->im_agctl[agno].inofree = iagno; in diFree()
981 /* update the free inode summary map for the extent if in diFree()
986 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diFree()
988 bitno = extno & (EXTSPERSUM - 1); in diFree()
989 iagp->inosmap[sword] &= in diFree()
995 iagp->wmap[extno] = cpu_to_le32(bitmap); in diFree()
998 * map level. in diFree()
1000 le32_add_cpu(&iagp->nfreeinos, 1); in diFree()
1001 imap->im_agctl[agno].numfree += 1; in diFree()
1002 atomic_inc(&imap->im_numfree); in diFree()
1004 /* release the AG inode map lock in diFree()
1024 fwd = back = -1; in diFree()
1029 if (iagp->nfreeexts == 0) { in diFree()
1036 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diFree()
1037 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1039 aiagp = (struct iag *) amp->data; in diFree()
1045 * free list and placed on the inode map's free iag list. in diFree()
1047 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1053 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diFree()
1054 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1056 aiagp = (struct iag *) amp->data; in diFree()
1059 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diFree()
1060 if ((rc = diIAGRead(imap, back, &bmp))) in diFree()
1062 biagp = (struct iag *) bmp->data; in diFree()
1070 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1071 int inofreeback = le32_to_cpu(iagp->inofreeback); in diFree()
1072 int inofreefwd = le32_to_cpu(iagp->inofreefwd); in diFree()
1079 * from up above, since re-reading an iag (buffer) in diFree()
1085 ciagp = (struct iag *) amp->data; in diFree()
1087 ciagp = (struct iag *) bmp->data; in diFree()
1089 if ((rc = in diFree()
1092 ciagp = (struct iag *) cmp->data; in diFree()
1099 diagp = (struct iag *) amp->data; in diFree()
1101 diagp = (struct iag *) bmp->data; in diFree()
1103 if ((rc = in diFree()
1106 diagp = (struct iag *) dmp->data; in diFree()
1117 freepxd = iagp->inoext[extno]; in diFree()
1126 if (iagp->nfreeexts == 0) { in diFree()
1128 aiagp->extfreeback = cpu_to_le32(iagno); in diFree()
1130 iagp->extfreefwd = in diFree()
1131 cpu_to_le32(imap->im_agctl[agno].extfree); in diFree()
1132 iagp->extfreeback = cpu_to_le32(-1); in diFree()
1133 imap->im_agctl[agno].extfree = iagno; in diFree()
1136 * are now free and place it on the inode map iag free list. in diFree()
1138 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1140 aiagp->extfreeback = iagp->extfreeback; in diFree()
1143 biagp->extfreefwd = iagp->extfreefwd; in diFree()
1145 imap->im_agctl[agno].extfree = in diFree()
1146 le32_to_cpu(iagp->extfreefwd); in diFree()
1148 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diFree()
1151 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diFree()
1152 imap->im_freeiag = iagno; in diFree()
1160 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1161 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) in diFree()
1162 ciagp->inofreeback = iagp->inofreeback; in diFree()
1164 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) in diFree()
1165 diagp->inofreefwd = iagp->inofreefwd; in diFree()
1167 imap->im_agctl[agno].inofree = in diFree()
1168 le32_to_cpu(iagp->inofreefwd); in diFree()
1170 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diFree()
1173 /* update the inode extent address and working map in diFree()
1175 * the permanent map should have been updated already in diFree()
1178 if (iagp->pmap[extno] != 0) { in diFree()
1179 jfs_error(ip->i_sb, "the pmap does not show inode free\n"); in diFree()
1181 iagp->wmap[extno] = 0; in diFree()
1182 PXDlength(&iagp->inoext[extno], 0); in diFree()
1183 PXDaddress(&iagp->inoext[extno], 0); in diFree()
1187 * the inode summary map is marked to indicate no inodes in diFree()
1191 bitno = extno & (EXTSPERSUM - 1); in diFree()
1193 iagp->inosmap[sword] |= cpu_to_le32(mask); in diFree()
1194 iagp->extsmap[sword] &= cpu_to_le32(~mask); in diFree()
1199 le32_add_cpu(&iagp->nfreeinos, -(INOSPEREXT - 1)); in diFree()
1200 le32_add_cpu(&iagp->nfreeexts, 1); in diFree()
1203 * at the ag and inode map level. in diFree()
1205 imap->im_agctl[agno].numfree -= (INOSPEREXT - 1); in diFree()
1206 imap->im_agctl[agno].numinos -= INOSPEREXT; in diFree()
1207 atomic_sub(INOSPEREXT - 1, &imap->im_numfree); in diFree()
1208 atomic_sub(INOSPEREXT, &imap->im_numinos); in diFree()
1220 * start transaction to update block allocation map in diFree()
1228 tid = txBegin(ipimap->i_sb, COMMIT_FORCE); in diFree()
1229 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1239 pxdlock = (struct pxd_lock *) & tlck->lock; in diFree()
1240 pxdlock->flag = mlckFREEPXD; in diFree()
1241 pxdlock->pxd = freepxd; in diFree()
1242 pxdlock->index = 1; in diFree()
1259 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diFree()
1262 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1264 /* unlock the AG inode map information */ in diFree()
1285 return (rc); in diFree()
1297 ip->i_ino = (iagno << L2INOSPERIAG) + ino; in diInitInode()
1298 jfs_ip->ixpxd = iagp->inoext[extno]; in diInitInode()
1299 jfs_ip->agstart = le64_to_cpu(iagp->agstart); in diInitInode()
1300 jfs_ip->active_ag = -1; in diInitInode()
1305 * NAME: diAlloc(pip,dir,ip)
1307 * FUNCTION: allocate a disk inode from the inode working map
1311 * pip - pointer to incore inode for the parent inode.
1312 * dir - 'true' if the new disk inode is for a directory.
1313 * ip - pointer to a new inode
1316 * 0 - success.
1317 * -ENOSPC - insufficient disk resources.
1318 * -EIO - i/o error.
1322 int rc, ino, iagno, addext, extno, bitno, sword; in diAlloc() local
1331 /* get the pointers to the inode map inode and the in diAlloc()
1334 ipimap = JFS_SBI(pip->i_sb)->ipimap; in diAlloc()
1335 imap = JFS_IP(ipimap)->i_imap; in diAlloc()
1336 JFS_IP(ip)->ipimap = ipimap; in diAlloc()
1337 JFS_IP(ip)->fileset = FILESYSTEM_I; in diAlloc()
1343 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1352 * hint. (we use a left-to-right policy to attempt to avoid in diAlloc()
1358 agno = BLKTOAG(JFS_IP(pip)->agstart, JFS_SBI(pip->i_sb)); in diAlloc()
1359 dn_numag = JFS_SBI(pip->i_sb)->bmap->db_numag; in diAlloc()
1361 return -EIO; in diAlloc()
1363 if (atomic_read(&JFS_SBI(pip->i_sb)->bmap->db_active[agno])) { in diAlloc()
1369 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1374 inum = pip->i_ino + 1; in diAlloc()
1375 ino = inum & (INOSPERIAG - 1); in diAlloc()
1379 inum = pip->i_ino; in diAlloc()
1381 /* lock the AG inode map information */ in diAlloc()
1389 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAlloc()
1392 return (rc); in diAlloc()
1394 iagp = (struct iag *) mp->data; in diAlloc()
1400 addext = (imap->im_agctl[agno].numfree < 32 && iagp->nfreeexts); in diAlloc()
1408 if (iagp->nfreeinos || addext) { in diAlloc()
1416 if (addressPXD(&iagp->inoext[extno])) { in diAlloc()
1417 bitno = ino & (INOSPEREXT - 1); in diAlloc()
1419 diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1427 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1429 if (rc) { in diAlloc()
1430 assert(rc == -EIO); in diAlloc()
1444 return (rc); in diAlloc()
1450 EXTSPERIAG - 1) ? 0 : extno + 1; in diAlloc()
1462 * here, so determine the starting summary map position in diAlloc()
1466 * map that represent extents prior to the extent containing in diAlloc()
1469 bitno = extno & (EXTSPERSUM - 1); in diAlloc()
1474 * summary map. in diAlloc()
1476 mask = (bitno == 0) ? 0 : (ONES << (EXTSPERSUM - bitno)); in diAlloc()
1477 inosmap = le32_to_cpu(iagp->inosmap[sword]) | mask; in diAlloc()
1478 extsmap = le32_to_cpu(iagp->extsmap[sword]) | mask; in diAlloc()
1485 * map describes an extent with free inodes. in diAlloc()
1494 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1500 jfs_error(ip->i_sb, in diAlloc()
1502 return -EIO; in diAlloc()
1507 * map. in diAlloc()
1510 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1512 if (rc) in diAlloc()
1513 assert(rc == -EIO); in diAlloc()
1527 return (rc); in diAlloc()
1533 * extents summary map describes a free extent. in diAlloc()
1544 if ((rc = diNewExt(imap, iagp, extno))) { in diAlloc()
1549 if (rc == -ENOSPC) in diAlloc()
1552 assert(rc == -EIO); in diAlloc()
1567 return (rc); in diAlloc()
1570 /* move on to the next set of summary map words. in diAlloc()
1572 sword = (sword == SMAPSZ - 1) ? 0 : sword + 1; in diAlloc()
1573 inosmap = le32_to_cpu(iagp->inosmap[sword]); in diAlloc()
1574 extsmap = le32_to_cpu(iagp->extsmap[sword]); in diAlloc()
1587 rc = diAllocAG(imap, agno, dir, ip); in diAlloc()
1591 if (rc != -ENOSPC) in diAlloc()
1592 return (rc); in diAlloc()
1602 * NAME: diAllocAG(imap,agno,dir,ip)
1618 * imap - pointer to inode map control structure.
1619 * agno - allocation group to allocate from.
1620 * dir - 'true' if the new disk inode is for a directory.
1621 * ip - pointer to the new inode to be filled in on successful return
1626 * 0 - success.
1627 * -ENOSPC - insufficient disk resources.
1628 * -EIO - i/o error.
1633 int rc, addext, numfree, numinos; in diAllocAG() local
1638 numfree = imap->im_agctl[agno].numfree; in diAllocAG()
1639 numinos = imap->im_agctl[agno].numinos; in diAllocAG()
1642 jfs_error(ip->i_sb, "numfree > numinos\n"); in diAllocAG()
1643 return -EIO; in diAllocAG()
1666 if ((rc = diAllocExt(imap, agno, ip)) != -ENOSPC) in diAllocAG()
1667 return (rc); in diAllocAG()
1678 * NAME: diAllocAny(imap,agno,dir,iap)
1688 * imap - pointer to inode map control structure.
1689 * agno - primary allocation group (to avoid).
1690 * dir - 'true' if the new disk inode is for a directory.
1691 * ip - pointer to a new inode to be filled in on successful return
1696 * 0 - success.
1697 * -ENOSPC - insufficient disk resources.
1698 * -EIO - i/o error.
1703 int ag, rc; in diAllocAny() local
1704 int maxag = JFS_SBI(imap->im_ipimap->i_sb)->bmap->db_maxag; in diAllocAny()
1713 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1717 if (rc != -ENOSPC) in diAllocAny()
1718 return (rc); in diAllocAny()
1726 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1730 if (rc != -ENOSPC) in diAllocAny()
1731 return (rc); in diAllocAny()
1736 return -ENOSPC; in diAllocAny()
1741 * NAME: diAllocIno(imap,agno,ip)
1748 * the iag's free inode summary map to find the leftmost
1754 * imap - pointer to inode map control structure.
1755 * agno - allocation group.
1756 * ip - pointer to new inode to be filled in on successful return
1761 * 0 - success.
1762 * -ENOSPC - insufficient disk resources.
1763 * -EIO - i/o error.
1767 int iagno, ino, rc, rem, extno, sword; in diAllocIno() local
1773 if ((iagno = imap->im_agctl[agno].inofree) < 0) in diAllocIno()
1774 return -ENOSPC; in diAllocIno()
1777 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocIno()
1781 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocIno()
1782 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1783 return (rc); in diAllocIno()
1785 iagp = (struct iag *) mp->data; in diAllocIno()
1790 if (!iagp->nfreeinos) { in diAllocIno()
1791 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1793 jfs_error(ip->i_sb, "nfreeinos = 0, but iag on freelist\n"); in diAllocIno()
1794 return -EIO; in diAllocIno()
1797 /* scan the free inode summary map to find an extent in diAllocIno()
1802 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1804 jfs_error(ip->i_sb, in diAllocIno()
1805 "free inode not found in summary map\n"); in diAllocIno()
1806 return -EIO; in diAllocIno()
1809 if (~iagp->inosmap[sword]) in diAllocIno()
1816 rem = diFindFree(le32_to_cpu(iagp->inosmap[sword]), 0); in diAllocIno()
1818 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1820 jfs_error(ip->i_sb, "no free extent found\n"); in diAllocIno()
1821 return -EIO; in diAllocIno()
1827 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), 0); in diAllocIno()
1829 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1831 jfs_error(ip->i_sb, "free inode not found\n"); in diAllocIno()
1832 return -EIO; in diAllocIno()
1841 rc = diAllocBit(imap, iagp, ino); in diAllocIno()
1842 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1843 if (rc) { in diAllocIno()
1845 return (rc); in diAllocIno()
1858 * NAME: diAllocExt(imap,agno,ip)
1871 * once an iag has been selected, the free extent summary map
1878 * imap - pointer to inode map control structure.
1879 * agno - allocation group number.
1880 * ip - pointer to new inode to be filled in on successful return
1885 * 0 - success.
1886 * -ENOSPC - insufficient disk resources.
1887 * -EIO - i/o error.
1891 int rem, iagno, sword, extno, rc; in diAllocExt() local
1898 if ((iagno = imap->im_agctl[agno].extfree) < 0) { in diAllocExt()
1902 if ((rc = diNewIAG(imap, &iagno, agno, &mp))) { in diAllocExt()
1903 return (rc); in diAllocExt()
1905 iagp = (struct iag *) mp->data; in diAllocExt()
1909 iagp->agstart = in diAllocExt()
1910 cpu_to_le64(AGTOBLK(agno, imap->im_ipimap)); in diAllocExt()
1914 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocExt()
1915 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocExt()
1916 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1917 jfs_error(ip->i_sb, "error reading iag\n"); in diAllocExt()
1918 return rc; in diAllocExt()
1920 iagp = (struct iag *) mp->data; in diAllocExt()
1923 /* using the free extent summary map, find a free extent. in diAllocExt()
1928 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1929 jfs_error(ip->i_sb, "free ext summary map not found\n"); in diAllocExt()
1930 return -EIO; in diAllocExt()
1932 if (~iagp->extsmap[sword]) in diAllocExt()
1938 rem = diFindFree(le32_to_cpu(iagp->extsmap[sword]), 0); in diAllocExt()
1941 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1942 jfs_error(ip->i_sb, "free extent not found\n"); in diAllocExt()
1943 return -EIO; in diAllocExt()
1949 rc = diNewExt(imap, iagp, extno); in diAllocExt()
1950 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1951 if (rc) { in diAllocExt()
1953 * place it back on the inode map's iag free list, and in diAllocExt()
1956 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diAllocExt()
1958 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diAllocExt()
1959 imap->im_freeiag = iagno; in diAllocExt()
1963 return (rc); in diAllocExt()
1977 * NAME: diAllocBit(imap,iagp,ino)
1997 * imap - pointer to inode map control structure.
1998 * iagp - pointer to iag.
1999 * ino - inode number to be allocated within the iag.
2002 * 0 - success.
2003 * -ENOSPC - insufficient disk resources.
2004 * -EIO - i/o error.
2008 int extno, bitno, agno, sword, rc; in diAllocBit() local
2018 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2019 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) { in diAllocBit()
2020 if ((rc = in diAllocBit()
2021 diIAGRead(imap, le32_to_cpu(iagp->inofreefwd), in diAllocBit()
2023 return (rc); in diAllocBit()
2024 aiagp = (struct iag *) amp->data; in diAllocBit()
2027 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) { in diAllocBit()
2028 if ((rc = in diAllocBit()
2030 le32_to_cpu(iagp->inofreeback), in diAllocBit()
2034 return (rc); in diAllocBit()
2036 biagp = (struct iag *) bmp->data; in diAllocBit()
2043 agno = BLKTOAG(le64_to_cpu(iagp->agstart), JFS_SBI(imap->im_ipimap->i_sb)); in diAllocBit()
2045 bitno = ino & (INOSPEREXT - 1); in diAllocBit()
2047 /* compute the mask for setting the map. in diAllocBit()
2053 if (((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) || in diAllocBit()
2054 ((le32_to_cpu(iagp->wmap[extno]) & mask) != 0) || in diAllocBit()
2055 (addressPXD(&iagp->inoext[extno]) == 0)) { in diAllocBit()
2061 jfs_error(imap->im_ipimap->i_sb, "iag inconsistent\n"); in diAllocBit()
2062 return -EIO; in diAllocBit()
2065 /* mark the inode as allocated in the working map. in diAllocBit()
2067 iagp->wmap[extno] |= cpu_to_le32(mask); in diAllocBit()
2071 * map to reflect this. in diAllocBit()
2073 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diAllocBit()
2075 bitno = extno & (EXTSPERSUM - 1); in diAllocBit()
2076 iagp->inosmap[sword] |= cpu_to_le32(HIGHORDER >> bitno); in diAllocBit()
2082 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2084 aiagp->inofreeback = iagp->inofreeback; in diAllocBit()
2089 biagp->inofreefwd = iagp->inofreefwd; in diAllocBit()
2092 imap->im_agctl[agno].inofree = in diAllocBit()
2093 le32_to_cpu(iagp->inofreefwd); in diAllocBit()
2095 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diAllocBit()
2099 * map levels. in diAllocBit()
2101 le32_add_cpu(&iagp->nfreeinos, -1); in diAllocBit()
2102 imap->im_agctl[agno].numfree -= 1; in diAllocBit()
2103 atomic_dec(&imap->im_numfree); in diAllocBit()
2110 * NAME: diNewExt(imap,iagp,extno)
2143 * imap - pointer to inode map control structure.
2144 * iagp - pointer to iag.
2145 * extno - extent number.
2148 * 0 - success.
2149 * -ENOSPC - insufficient disk resources.
2150 * -EIO - i/o error.
2154 int agno, iagno, fwd, back, freei = 0, sword, rc; in diNewExt() local
2167 if (!iagp->nfreeexts) { in diNewExt()
2168 jfs_error(imap->im_ipimap->i_sb, "no free extents\n"); in diNewExt()
2169 return -EIO; in diNewExt()
2172 /* get the inode map inode. in diNewExt()
2174 ipimap = imap->im_ipimap; in diNewExt()
2175 sbi = JFS_SBI(ipimap->i_sb); in diNewExt()
2181 agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi); in diNewExt()
2183 return -EIO; in diNewExt()
2185 iagno = le32_to_cpu(iagp->iagnum); in diNewExt()
2192 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2193 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diNewExt()
2194 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2195 return (rc); in diNewExt()
2196 aiagp = (struct iag *) amp->data; in diNewExt()
2199 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diNewExt()
2200 if ((rc = diIAGRead(imap, back, &bmp))) in diNewExt()
2202 biagp = (struct iag *) bmp->data; in diNewExt()
2211 fwd = back = -1; in diNewExt()
2212 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2213 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diNewExt()
2214 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2216 aiagp = (struct iag *) amp->data; in diNewExt()
2228 if (iagp->nfreeinos == 0) { in diNewExt()
2229 freei = imap->im_agctl[agno].inofree; in diNewExt()
2237 if ((rc = diIAGRead(imap, freei, &cmp))) in diNewExt()
2239 ciagp = (struct iag *) cmp->data; in diNewExt()
2242 jfs_error(imap->im_ipimap->i_sb, in diNewExt()
2244 rc = -EIO; in diNewExt()
2252 if ((extno == 0) || (addressPXD(&iagp->inoext[extno - 1]) == 0)) in diNewExt()
2253 hint = ((s64) agno << sbi->bmap->db_agl2size) - 1; in diNewExt()
2255 hint = addressPXD(&iagp->inoext[extno - 1]) + in diNewExt()
2256 lengthPXD(&iagp->inoext[extno - 1]) - 1; in diNewExt()
2258 if ((rc = dbAlloc(ipimap, hint, (s64) imap->im_nbperiext, &blkno))) in diNewExt()
2269 for (i = 0; i < imap->im_nbperiext; i += sbi->nbperpage) { in diNewExt()
2274 rc = -EIO; in diNewExt()
2277 dp = (struct dinode *) dmp->data; in diNewExt()
2283 dp->di_inostamp = cpu_to_le32(sbi->inostamp); in diNewExt()
2284 dp->di_number = cpu_to_le32(ino); in diNewExt()
2285 dp->di_fileset = cpu_to_le32(FILESYSTEM_I); in diNewExt()
2286 dp->di_mode = 0; in diNewExt()
2287 dp->di_nlink = 0; in diNewExt()
2288 PXDaddress(&(dp->di_ixpxd), blkno); in diNewExt()
2289 PXDlength(&(dp->di_ixpxd), imap->im_nbperiext); in diNewExt()
2297 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2299 aiagp->extfreeback = iagp->extfreeback; in diNewExt()
2302 biagp->extfreefwd = iagp->extfreefwd; in diNewExt()
2304 imap->im_agctl[agno].extfree = in diNewExt()
2305 le32_to_cpu(iagp->extfreefwd); in diNewExt()
2307 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2312 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2314 aiagp->extfreeback = cpu_to_le32(iagno); in diNewExt()
2316 iagp->extfreefwd = cpu_to_le32(fwd); in diNewExt()
2317 iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2318 imap->im_agctl[agno].extfree = iagno; in diNewExt()
2325 if (iagp->nfreeinos == 0) { in diNewExt()
2327 ciagp->inofreeback = cpu_to_le32(iagno); in diNewExt()
2329 iagp->inofreefwd = in diNewExt()
2330 cpu_to_le32(imap->im_agctl[agno].inofree); in diNewExt()
2331 iagp->inofreeback = cpu_to_le32(-1); in diNewExt()
2332 imap->im_agctl[agno].inofree = iagno; in diNewExt()
2336 PXDlength(&iagp->inoext[extno], imap->im_nbperiext); in diNewExt()
2337 PXDaddress(&iagp->inoext[extno], blkno); in diNewExt()
2339 /* initialize the working and persistent map of the extent. in diNewExt()
2340 * the working map will be initialized such that in diNewExt()
2343 iagp->wmap[extno] = cpu_to_le32(HIGHORDER); in diNewExt()
2344 iagp->pmap[extno] = 0; in diNewExt()
2351 mask = HIGHORDER >> (extno & (EXTSPERSUM - 1)); in diNewExt()
2352 iagp->extsmap[sword] |= cpu_to_le32(mask); in diNewExt()
2353 iagp->inosmap[sword] &= cpu_to_le32(~mask); in diNewExt()
2358 le32_add_cpu(&iagp->nfreeinos, (INOSPEREXT - 1)); in diNewExt()
2359 le32_add_cpu(&iagp->nfreeexts, -1); in diNewExt()
2363 imap->im_agctl[agno].numfree += (INOSPEREXT - 1); in diNewExt()
2364 imap->im_agctl[agno].numinos += INOSPEREXT; in diNewExt()
2366 /* update the free and backed inode counts for the inode map. in diNewExt()
2368 atomic_add(INOSPEREXT - 1, &imap->im_numfree); in diNewExt()
2369 atomic_add(INOSPEREXT, &imap->im_numinos); in diNewExt()
2393 return (rc); in diNewExt()
2398 * NAME: diNewIAG(imap,iagnop,agno)
2402 * first tries to allocate the iag from the inode map
2406 * if the inode map's iag free list is empty, the inode map
2411 * imap - pointer to inode map control structure.
2412 * iagnop - pointer to an iag number set with the number of the
2414 * agno - allocation group number.
2415 * bpp - Buffer pointer to be filled in with new IAG's buffer
2418 * 0 - success.
2419 * -ENOSPC - insufficient disk resources.
2420 * -EIO - i/o error.
2424 * write lock on the map is held inside;
2425 * read lock on the map is held on successful completion;
2432 * . at start of logredo(): init in-memory imap with one additional iag page;
2433 * . at end of logredo(): re-read imap inode to determine
2439 int rc; in diNewIAG() local
2451 /* pick up pointers to the inode map and mount inodes */ in diNewIAG()
2452 ipimap = imap->im_ipimap; in diNewIAG()
2453 sb = ipimap->i_sb; in diNewIAG()
2459 /* if there are any iags on the inode map free iag list, in diNewIAG()
2462 if (imap->im_freeiag >= 0) { in diNewIAG()
2464 iagno = imap->im_freeiag; in diNewIAG()
2467 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2469 /* no free iags. the inode map will have to be extented in diNewIAG()
2473 /* acquire inode map lock */ in diNewIAG()
2476 if (ipimap->i_size >> L2PSIZE != imap->im_nextiag + 1) { in diNewIAG()
2479 jfs_error(imap->im_ipimap->i_sb, in diNewIAG()
2480 "ipimap->i_size is wrong\n"); in diNewIAG()
2481 return -EIO; in diNewIAG()
2486 iagno = imap->im_nextiag; in diNewIAG()
2491 if (iagno > (MAXIAGS - 1)) { in diNewIAG()
2492 /* release the inode map lock */ in diNewIAG()
2495 rc = -ENOSPC; in diNewIAG()
2503 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2506 xlen = sbi->nbperpage; in diNewIAG()
2507 if ((rc = dbAlloc(ipimap, 0, (s64) xlen, &xaddr))) { in diNewIAG()
2508 /* release the inode map lock */ in diNewIAG()
2515 * start transaction of update of the inode map in diNewIAG()
2519 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2521 /* update the inode map addressing structure to point to it */ in diNewIAG()
2522 if ((rc = in diNewIAG()
2525 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2527 * not successfully added to the inode map in diNewIAG()
2531 /* release the inode map lock */ in diNewIAG()
2537 /* update the inode map's inode to reflect the extension */ in diNewIAG()
2538 ipimap->i_size += PSIZE; in diNewIAG()
2548 xtTruncate(tid, ipimap, ipimap->i_size - PSIZE, in diNewIAG()
2553 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2555 /* release the inode map lock */ in diNewIAG()
2558 rc = -EIO; in diNewIAG()
2561 iagp = (struct iag *) mp->data; in diNewIAG()
2565 iagp->iagnum = cpu_to_le32(iagno); in diNewIAG()
2566 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diNewIAG()
2567 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewIAG()
2568 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2569 iagp->nfreeinos = 0; in diNewIAG()
2570 iagp->nfreeexts = cpu_to_le32(EXTSPERIAG); in diNewIAG()
2572 /* initialize the free inode summary map (free extent in diNewIAG()
2573 * summary map initialization handled by bzero). in diNewIAG()
2576 iagp->inosmap[i] = cpu_to_le32(ONES); in diNewIAG()
2589 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diNewIAG()
2592 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2597 imap->im_nextiag += 1; in diNewIAG()
2602 imap->im_freeiag = iagno; in diNewIAG()
2609 /* release the inode map lock */ in diNewIAG()
2613 /* obtain read lock on map */ in diNewIAG()
2617 if ((rc = diIAGRead(imap, iagno, &mp))) { in diNewIAG()
2619 rc = -EIO; in diNewIAG()
2622 iagp = (struct iag *) mp->data; in diNewIAG()
2625 imap->im_freeiag = le32_to_cpu(iagp->iagfree); in diNewIAG()
2626 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2636 return (rc); in diNewIAG()
2640 * NAME: diIAGRead()
2643 * or aggregate inode map.
2646 * imap - pointer to inode map control structure.
2647 * iagno - iag number.
2648 * bpp - point to buffer pointer to be filled in on successful
2657 * 0 - success.
2658 * -EIO - i/o error.
2662 struct inode *ipimap = imap->im_ipimap; in diIAGRead()
2666 blkno = IAGTOLBLK(iagno, JFS_SBI(ipimap->i_sb)->l2nbperpage); in diIAGRead()
2671 return -EIO; in diIAGRead()
2678 * NAME: diFindFree()
2684 * word - word to be examined.
2685 * start - starting bit position.
2705 * NAME: diUpdatePMap()
2707 * FUNCTION: Update the persistent map in an IAG for the allocation or
2710 * PRE CONDITIONS: Working map has already been updated for allocate.
2713 * ipimap - Incore inode map inode
2714 * inum - Number of inode to mark in permanent map
2715 * is_free - If 'true' indicates inode should be marked freed, otherwise
2725 int rc; in diUpdatePMap() local
2735 imap = JFS_IP(ipimap)->i_imap; in diUpdatePMap()
2738 /* make sure that the iag is contained within the map */ in diUpdatePMap()
2739 if (iagno >= imap->im_nextiag) { in diUpdatePMap()
2740 jfs_error(ipimap->i_sb, "the iag is outside the map\n"); in diUpdatePMap()
2741 return -EIO; in diUpdatePMap()
2745 rc = diIAGRead(imap, iagno, &mp); in diUpdatePMap()
2747 if (rc) in diUpdatePMap()
2748 return (rc); in diUpdatePMap()
2750 iagp = (struct iag *) mp->data; in diUpdatePMap()
2754 ino = inum & (INOSPERIAG - 1); in diUpdatePMap()
2756 bitno = ino & (INOSPEREXT - 1); in diUpdatePMap()
2759 * mark the inode free in persistent map: in diUpdatePMap()
2763 * map and in persistent map; in diUpdatePMap()
2764 * the inode will be freed from working map at the release in diUpdatePMap()
2767 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2768 jfs_error(ipimap->i_sb, in diUpdatePMap()
2772 if (!(le32_to_cpu(iagp->pmap[extno]) & mask)) { in diUpdatePMap()
2773 jfs_error(ipimap->i_sb, in diUpdatePMap()
2778 iagp->pmap[extno] &= cpu_to_le32(~mask); in diUpdatePMap()
2781 * mark the inode allocated in persistent map: in diUpdatePMap()
2784 /* The inode should be already allocated in the working map in diUpdatePMap()
2785 * and should be free in persistent map; in diUpdatePMap()
2787 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2789 jfs_error(ipimap->i_sb, in diUpdatePMap()
2790 "the inode is not allocated in the working map\n"); in diUpdatePMap()
2791 return -EIO; in diUpdatePMap()
2793 if ((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) { in diUpdatePMap()
2795 jfs_error(ipimap->i_sb, in diUpdatePMap()
2796 "the inode is not free in the persistent map\n"); in diUpdatePMap()
2797 return -EIO; in diUpdatePMap()
2800 iagp->pmap[extno] |= cpu_to_le32(mask); in diUpdatePMap()
2805 lsn = tblk->lsn; in diUpdatePMap()
2806 log = JFS_SBI(tblk->sb)->log; in diUpdatePMap()
2808 if (mp->lsn != 0) { in diUpdatePMap()
2811 logdiff(diffp, mp->lsn, log); in diUpdatePMap()
2813 mp->lsn = lsn; in diUpdatePMap()
2815 list_move(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2818 assert(mp->clsn); in diUpdatePMap()
2819 logdiff(difft, tblk->clsn, log); in diUpdatePMap()
2820 logdiff(diffp, mp->clsn, log); in diUpdatePMap()
2822 mp->clsn = tblk->clsn; in diUpdatePMap()
2824 mp->log = log; in diUpdatePMap()
2825 mp->lsn = lsn; in diUpdatePMap()
2827 log->count++; in diUpdatePMap()
2828 list_add(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2829 mp->clsn = tblk->clsn; in diUpdatePMap()
2846 int rc, rcx = 0; in diExtendFS() local
2847 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diExtendFS()
2849 struct bmap *mp = JFS_SBI(ipbmap->i_sb)->bmap; in diExtendFS()
2856 imap->im_nextiag, atomic_read(&imap->im_numinos), in diExtendFS()
2857 atomic_read(&imap->im_numfree)); in diExtendFS()
2863 * i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn; in diExtendFS()
2869 imap->im_agctl[i].inofree = -1; in diExtendFS()
2870 imap->im_agctl[i].extfree = -1; in diExtendFS()
2871 imap->im_agctl[i].numinos = 0; /* number of backed inodes */ in diExtendFS()
2872 imap->im_agctl[i].numfree = 0; /* number of free backed inodes */ in diExtendFS()
2876 * process each iag page of the map. in diExtendFS()
2880 for (i = 0; i < imap->im_nextiag; i++) { in diExtendFS()
2881 if ((rc = diIAGRead(imap, i, &bp))) { in diExtendFS()
2882 rcx = rc; in diExtendFS()
2885 iagp = (struct iag *) bp->data; in diExtendFS()
2886 if (le32_to_cpu(iagp->iagnum) != i) { in diExtendFS()
2888 jfs_error(ipimap->i_sb, "unexpected value of iagnum\n"); in diExtendFS()
2889 return -EIO; in diExtendFS()
2893 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diExtendFS()
2898 agstart = le64_to_cpu(iagp->agstart); in diExtendFS()
2899 n = agstart >> mp->db_agl2size; in diExtendFS()
2900 iagp->agstart = cpu_to_le64((s64)n << mp->db_agl2size); in diExtendFS()
2903 numinos = (EXTSPERIAG - le32_to_cpu(iagp->nfreeexts)) in diExtendFS()
2907 imap->im_agctl[n].numinos += numinos; in diExtendFS()
2912 if ((int) le32_to_cpu(iagp->nfreeinos) > 0) { in diExtendFS()
2913 if ((head = imap->im_agctl[n].inofree) == -1) { in diExtendFS()
2914 iagp->inofreefwd = cpu_to_le32(-1); in diExtendFS()
2915 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2917 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2918 rcx = rc; in diExtendFS()
2921 hiagp = (struct iag *) hbp->data; in diExtendFS()
2922 hiagp->inofreeback = iagp->iagnum; in diExtendFS()
2923 iagp->inofreefwd = cpu_to_le32(head); in diExtendFS()
2924 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2928 imap->im_agctl[n].inofree = in diExtendFS()
2929 le32_to_cpu(iagp->iagnum); in diExtendFS()
2932 imap->im_agctl[n].numfree += in diExtendFS()
2933 le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2934 xnumfree += le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2938 if (le32_to_cpu(iagp->nfreeexts) > 0) { in diExtendFS()
2939 if ((head = imap->im_agctl[n].extfree) == -1) { in diExtendFS()
2940 iagp->extfreefwd = cpu_to_le32(-1); in diExtendFS()
2941 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2943 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2944 rcx = rc; in diExtendFS()
2947 hiagp = (struct iag *) hbp->data; in diExtendFS()
2948 hiagp->extfreeback = iagp->iagnum; in diExtendFS()
2949 iagp->extfreefwd = cpu_to_le32(head); in diExtendFS()
2950 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2954 imap->im_agctl[n].extfree = in diExtendFS()
2955 le32_to_cpu(iagp->iagnum); in diExtendFS()
2962 if (xnuminos != atomic_read(&imap->im_numinos) || in diExtendFS()
2963 xnumfree != atomic_read(&imap->im_numfree)) { in diExtendFS()
2964 jfs_error(ipimap->i_sb, "numinos or numfree incorrect\n"); in diExtendFS()
2965 return -EIO; in diExtendFS()
2988 if (JFS_SBI(sb)->mntflag & JFS_BAD_SAIT) /* s_flag */ in duplicateIXtree()
2992 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
2995 j_sb = (struct jfs_superblock *)bh->b_data; in duplicateIXtree()
2996 j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT); in duplicateIXtree()
3006 /* update the inode map addressing structure to point to it */ in duplicateIXtree()
3008 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
3013 /* update the inode map's inode to reflect the extension */ in duplicateIXtree()
3014 ip->i_size += PSIZE; in duplicateIXtree()
3023 * NAME: copy_from_dinode()
3025 * FUNCTION: Copies inode info from disk inode to in-memory inode
3028 * 0 - success
3029 * -ENOMEM - insufficient memory
3034 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_from_dinode()
3036 jfs_ip->fileset = le32_to_cpu(dip->di_fileset); in copy_from_dinode()
3037 jfs_ip->mode2 = le32_to_cpu(dip->di_mode); in copy_from_dinode()
3040 ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; in copy_from_dinode()
3041 if (sbi->umask != -1) { in copy_from_dinode()
3042 ip->i_mode = (ip->i_mode & ~0777) | (0777 & ~sbi->umask); in copy_from_dinode()
3044 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3045 if (ip->i_mode & 0400) in copy_from_dinode()
3046 ip->i_mode |= 0100; in copy_from_dinode()
3047 if (ip->i_mode & 0040) in copy_from_dinode()
3048 ip->i_mode |= 0010; in copy_from_dinode()
3049 if (ip->i_mode & 0004) in copy_from_dinode()
3050 ip->i_mode |= 0001; in copy_from_dinode()
3053 set_nlink(ip, le32_to_cpu(dip->di_nlink)); in copy_from_dinode()
3055 jfs_ip->saved_uid = make_kuid(&init_user_ns, le32_to_cpu(dip->di_uid)); in copy_from_dinode()
3056 if (!uid_valid(sbi->uid)) in copy_from_dinode()
3057 ip->i_uid = jfs_ip->saved_uid; in copy_from_dinode()
3059 ip->i_uid = sbi->uid; in copy_from_dinode()
3062 jfs_ip->saved_gid = make_kgid(&init_user_ns, le32_to_cpu(dip->di_gid)); in copy_from_dinode()
3063 if (!gid_valid(sbi->gid)) in copy_from_dinode()
3064 ip->i_gid = jfs_ip->saved_gid; in copy_from_dinode()
3066 ip->i_gid = sbi->gid; in copy_from_dinode()
3069 ip->i_size = le64_to_cpu(dip->di_size); in copy_from_dinode()
3070 inode_set_atime(ip, le32_to_cpu(dip->di_atime.tv_sec), in copy_from_dinode()
3071 le32_to_cpu(dip->di_atime.tv_nsec)); in copy_from_dinode()
3072 inode_set_mtime(ip, le32_to_cpu(dip->di_mtime.tv_sec), in copy_from_dinode()
3073 le32_to_cpu(dip->di_mtime.tv_nsec)); in copy_from_dinode()
3074 inode_set_ctime(ip, le32_to_cpu(dip->di_ctime.tv_sec), in copy_from_dinode()
3075 le32_to_cpu(dip->di_ctime.tv_nsec)); in copy_from_dinode()
3076 ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks)); in copy_from_dinode()
3077 ip->i_generation = le32_to_cpu(dip->di_gen); in copy_from_dinode()
3079 jfs_ip->ixpxd = dip->di_ixpxd; /* in-memory pxd's are little-endian */ in copy_from_dinode()
3080 jfs_ip->acl = dip->di_acl; /* as are dxd's */ in copy_from_dinode()
3081 jfs_ip->ea = dip->di_ea; in copy_from_dinode()
3082 jfs_ip->next_index = le32_to_cpu(dip->di_next_index); in copy_from_dinode()
3083 jfs_ip->otime = le32_to_cpu(dip->di_otime.tv_sec); in copy_from_dinode()
3084 jfs_ip->acltype = le32_to_cpu(dip->di_acltype); in copy_from_dinode()
3086 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { in copy_from_dinode()
3087 jfs_ip->dev = le32_to_cpu(dip->di_rdev); in copy_from_dinode()
3088 ip->i_rdev = new_decode_dev(jfs_ip->dev); in copy_from_dinode()
3091 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3092 memcpy(&jfs_ip->u.dir, &dip->u._dir, 384); in copy_from_dinode()
3093 } else if (S_ISREG(ip->i_mode) || S_ISLNK(ip->i_mode)) { in copy_from_dinode()
3094 memcpy(&jfs_ip->i_xtroot, &dip->di_xtroot, 288); in copy_from_dinode()
3096 memcpy(&jfs_ip->i_inline_ea, &dip->di_inlineea, 128); in copy_from_dinode()
3098 /* Zero the in-memory-only stuff */ in copy_from_dinode()
3099 jfs_ip->cflag = 0; in copy_from_dinode()
3100 jfs_ip->btindex = 0; in copy_from_dinode()
3101 jfs_ip->btorder = 0; in copy_from_dinode()
3102 jfs_ip->bxflag = 0; in copy_from_dinode()
3103 jfs_ip->blid = 0; in copy_from_dinode()
3104 jfs_ip->atlhead = 0; in copy_from_dinode()
3105 jfs_ip->atltail = 0; in copy_from_dinode()
3106 jfs_ip->xtlid = 0; in copy_from_dinode()
3111 * NAME: copy_to_dinode()
3113 * FUNCTION: Copies inode info from in-memory inode to disk inode
3118 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_to_dinode()
3120 dip->di_fileset = cpu_to_le32(jfs_ip->fileset); in copy_to_dinode()
3121 dip->di_inostamp = cpu_to_le32(sbi->inostamp); in copy_to_dinode()
3122 dip->di_number = cpu_to_le32(ip->i_ino); in copy_to_dinode()
3123 dip->di_gen = cpu_to_le32(ip->i_generation); in copy_to_dinode()
3124 dip->di_size = cpu_to_le64(ip->i_size); in copy_to_dinode()
3125 dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); in copy_to_dinode()
3126 dip->di_nlink = cpu_to_le32(ip->i_nlink); in copy_to_dinode()
3127 if (!uid_valid(sbi->uid)) in copy_to_dinode()
3128 dip->di_uid = cpu_to_le32(i_uid_read(ip)); in copy_to_dinode()
3130 dip->di_uid =cpu_to_le32(from_kuid(&init_user_ns, in copy_to_dinode()
3131 jfs_ip->saved_uid)); in copy_to_dinode()
3132 if (!gid_valid(sbi->gid)) in copy_to_dinode()
3133 dip->di_gid = cpu_to_le32(i_gid_read(ip)); in copy_to_dinode()
3135 dip->di_gid = cpu_to_le32(from_kgid(&init_user_ns, in copy_to_dinode()
3136 jfs_ip->saved_gid)); in copy_to_dinode()
3141 if (sbi->umask == -1) in copy_to_dinode()
3142 dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | in copy_to_dinode()
3143 ip->i_mode); in copy_to_dinode()
3145 dip->di_mode = cpu_to_le32(jfs_ip->mode2); in copy_to_dinode()
3147 dip->di_atime.tv_sec = cpu_to_le32(inode_get_atime_sec(ip)); in copy_to_dinode()
3148 dip->di_atime.tv_nsec = cpu_to_le32(inode_get_atime_nsec(ip)); in copy_to_dinode()
3149 dip->di_ctime.tv_sec = cpu_to_le32(inode_get_ctime_sec(ip)); in copy_to_dinode()
3150 dip->di_ctime.tv_nsec = cpu_to_le32(inode_get_ctime_nsec(ip)); in copy_to_dinode()
3151 dip->di_mtime.tv_sec = cpu_to_le32(inode_get_mtime_sec(ip)); in copy_to_dinode()
3152 dip->di_mtime.tv_nsec = cpu_to_le32(inode_get_mtime_nsec(ip)); in copy_to_dinode()
3153 dip->di_ixpxd = jfs_ip->ixpxd; /* in-memory pxd's are little-endian */ in copy_to_dinode()
3154 dip->di_acl = jfs_ip->acl; /* as are dxd's */ in copy_to_dinode()
3155 dip->di_ea = jfs_ip->ea; in copy_to_dinode()
3156 dip->di_next_index = cpu_to_le32(jfs_ip->next_index); in copy_to_dinode()
3157 dip->di_otime.tv_sec = cpu_to_le32(jfs_ip->otime); in copy_to_dinode()
3158 dip->di_otime.tv_nsec = 0; in copy_to_dinode()
3159 dip->di_acltype = cpu_to_le32(jfs_ip->acltype); in copy_to_dinode()
3160 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) in copy_to_dinode()
3161 dip->di_rdev = cpu_to_le32(jfs_ip->dev); in copy_to_dinode()