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()
108 return -ENOMEM; in diMount()
111 /* read the on-disk inode map control structure. */ in diMount()
114 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diMount()
118 return -EIO; in diMount()
121 /* copy the on-disk version to the in-memory version. */ in diMount()
122 dinom_le = (struct dinomap_disk *) mp->data; in diMount()
123 imap->im_freeiag = le32_to_cpu(dinom_le->in_freeiag); in diMount()
124 imap->im_nextiag = le32_to_cpu(dinom_le->in_nextiag); in diMount()
125 atomic_set(&imap->im_numinos, le32_to_cpu(dinom_le->in_numinos)); in diMount()
126 atomic_set(&imap->im_numfree, le32_to_cpu(dinom_le->in_numfree)); in diMount()
127 imap->im_nbperiext = le32_to_cpu(dinom_le->in_nbperiext); in diMount()
128 imap->im_l2nbperiext = le32_to_cpu(dinom_le->in_l2nbperiext); in diMount()
130 imap->im_agctl[index].inofree = in diMount()
131 le32_to_cpu(dinom_le->in_agctl[index].inofree); in diMount()
132 imap->im_agctl[index].extfree = in diMount()
133 le32_to_cpu(dinom_le->in_agctl[index].extfree); in diMount()
134 imap->im_agctl[index].numinos = in diMount()
135 le32_to_cpu(dinom_le->in_agctl[index].numinos); in diMount()
136 imap->im_agctl[index].numfree = in diMount()
137 le32_to_cpu(dinom_le->in_agctl[index].numfree); in diMount()
144 * allocate/initialize inode allocation map locks in diMount()
154 /* bind the inode map inode and inode map control structure in diMount()
157 imap->im_ipimap = ipimap; in diMount()
158 JFS_IP(ipimap)->i_imap = imap; in diMount()
165 * NAME: diUnmount()
167 * FUNCTION: write to disk the incore inode map control structures for
171 * ipimap - pointer to inode map inode for the aggregate or fileset.
174 * 0 - success
175 * -ENOMEM - insufficient free virtual memory.
176 * -EIO - i/o error.
180 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diUnmount()
183 * update the on-disk inode map control structure in diUnmount()
192 truncate_inode_pages(ipimap->i_mapping, 0); in diUnmount()
195 * free in-memory control structure in diUnmount()
209 struct inomap *imp = JFS_IP(ipimap)->i_imap; in diSync()
216 /* read the on-disk inode map control structure */ in diSync()
218 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diSync()
222 return -EIO; in diSync()
225 /* copy the in-memory version to the on-disk version */ in diSync()
226 dinom_le = (struct dinomap_disk *) mp->data; in diSync()
227 dinom_le->in_freeiag = cpu_to_le32(imp->im_freeiag); in diSync()
228 dinom_le->in_nextiag = cpu_to_le32(imp->im_nextiag); in diSync()
229 dinom_le->in_numinos = cpu_to_le32(atomic_read(&imp->im_numinos)); in diSync()
230 dinom_le->in_numfree = cpu_to_le32(atomic_read(&imp->im_numfree)); in diSync()
231 dinom_le->in_nbperiext = cpu_to_le32(imp->im_nbperiext); in diSync()
232 dinom_le->in_l2nbperiext = cpu_to_le32(imp->im_l2nbperiext); in diSync()
234 dinom_le->in_agctl[index].inofree = in diSync()
235 cpu_to_le32(imp->im_agctl[index].inofree); in diSync()
236 dinom_le->in_agctl[index].extfree = in diSync()
237 cpu_to_le32(imp->im_agctl[index].extfree); in diSync()
238 dinom_le->in_agctl[index].numinos = in diSync()
239 cpu_to_le32(imp->im_agctl[index].numinos); in diSync()
240 dinom_le->in_agctl[index].numfree = in diSync()
241 cpu_to_le32(imp->im_agctl[index].numfree); in diSync()
250 filemap_write_and_wait(ipimap->i_mapping); in diSync()
259 * NAME: diRead()
272 * identified by a NULL inode map inode pointer and are
283 * ip - pointer to incore inode to be initialized from disk.
286 * 0 - success
287 * -EIO - i/o error.
288 * -ENOMEM - insufficient memory
293 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diRead()
294 int iagno, ino, extno, rc; in diRead() local
306 jfs_info("diRead: ino = %ld", ip->i_ino); in diRead()
308 ipimap = sbi->ipimap; in diRead()
309 JFS_IP(ip)->ipimap = ipimap; in diRead()
312 iagno = INOTOIAG(ip->i_ino); in diRead()
315 imap = JFS_IP(ipimap)->i_imap; in diRead()
317 rc = diIAGRead(imap, iagno, &mp); in diRead()
319 if (rc) { in diRead()
320 jfs_err("diRead: diIAGRead returned %d", rc); in diRead()
321 return (rc); in diRead()
324 iagp = (struct iag *) mp->data; in diRead()
327 ino = ip->i_ino & (INOSPERIAG - 1); in diRead()
330 if ((lengthPXD(&iagp->inoext[extno]) != imap->im_nbperiext) || in diRead()
331 (addressPXD(&iagp->inoext[extno]) == 0)) { in diRead()
333 return -ESTALE; in diRead()
339 blkno = INOPBLK(&iagp->inoext[extno], ino, sbi->l2nbperpage); in diRead()
342 agstart = le64_to_cpu(iagp->agstart); in diRead()
346 rel_inode = (ino & (INOSPERPAGE - 1)); in diRead()
347 pageno = blkno >> sbi->l2nbperpage; in diRead()
349 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diRead()
354 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diRead()
357 rel_inode += block_offset << sbi->l2niperblk; in diRead()
360 rel_inode -= inodes_left; in diRead()
365 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diRead()
368 return -EIO; in diRead()
372 dp = (struct dinode *) mp->data; in diRead()
375 if (ip->i_ino != le32_to_cpu(dp->di_number)) { in diRead()
376 jfs_error(ip->i_sb, "i_ino != di_number\n"); in diRead()
377 rc = -EIO; in diRead()
378 } else if (le32_to_cpu(dp->di_nlink) == 0) in diRead()
379 rc = -ESTALE; in diRead()
381 /* copy the disk inode to the in-memory inode */ in diRead()
382 rc = copy_from_dinode(dp, ip); in diRead()
387 JFS_IP(ip)->agstart = agstart; in diRead()
388 JFS_IP(ip)->active_ag = -1; in diRead()
390 return (rc); in diRead()
395 * NAME: diReadSpecial()
403 * inode map, since these inodes are at a fixed location
404 * and in some cases the aggregate inode map isn't initialized
408 * sb - filesystem superblock
409 * inum - aggregate inode number
410 * secondary - 1 if secondary aggregate inode table
413 * new inode - success
414 * NULL - i/o error.
431 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diReadSpecial()
432 JFS_IP(ip)->ipimap = sbi->ipaimap2; in diReadSpecial()
435 JFS_IP(ip)->ipimap = sbi->ipaimap; in diReadSpecial()
440 ip->i_ino = inum; in diReadSpecial()
445 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diReadSpecial()
453 dp = (struct dinode *) (mp->data); in diReadSpecial()
456 /* copy on-disk inode to in-memory inode */ in diReadSpecial()
467 ip->i_mapping->a_ops = &jfs_metapage_aops; in diReadSpecial()
468 mapping_set_gfp_mask(ip->i_mapping, GFP_NOFS); in diReadSpecial()
471 ip->i_flags |= S_NOQUOTA; in diReadSpecial()
473 if ((inum == FILESYSTEM_I) && (JFS_IP(ip)->ipimap == sbi->ipaimap)) { in diReadSpecial()
474 sbi->gengen = le32_to_cpu(dp->di_gengen); in diReadSpecial()
475 sbi->inostamp = le32_to_cpu(dp->di_inostamp); in diReadSpecial()
487 * NAME: diWriteSpecial()
492 * ip - special inode
493 * secondary - 1 if secondary aggregate inode table
500 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWriteSpecial()
503 ino_t inum = ip->i_ino; in diWriteSpecial()
507 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diWriteSpecial()
516 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diWriteSpecial()
523 dp = (struct dinode *) (mp->data); in diWriteSpecial()
526 /* copy on-disk inode to in-memory inode */ in diWriteSpecial()
528 memcpy(&dp->di_xtroot, &JFS_IP(ip)->i_xtroot, 288); in diWriteSpecial()
531 dp->di_gengen = cpu_to_le32(sbi->gengen); in diWriteSpecial()
538 * NAME: diFreeSpecial()
548 filemap_write_and_wait(ip->i_mapping); in diFreeSpecial()
549 truncate_inode_pages(ip->i_mapping, 0); in diFreeSpecial()
556 * NAME: diWrite()
558 * FUNCTION: write the on-disk inode portion of the in-memory inode
559 * to its corresponding on-disk inode.
572 * tid - transacation id
573 * ip - pointer to incore inode to be written to the inode extent.
576 * 0 - success
577 * -EIO - i/o error.
581 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWrite()
583 int rc = 0; in diWrite() local
601 ipimap = jfs_ip->ipimap; in diWrite()
603 ino = ip->i_ino & (INOSPERIAG - 1); in diWrite()
605 if (!addressPXD(&(jfs_ip->ixpxd)) || in diWrite()
606 (lengthPXD(&(jfs_ip->ixpxd)) != in diWrite()
607 JFS_IP(ipimap)->i_imap->im_nbperiext)) { in diWrite()
608 jfs_error(ip->i_sb, "ixpxd invalid\n"); in diWrite()
609 return -EIO; in diWrite()
616 blkno = INOPBLK(&(jfs_ip->ixpxd), ino, sbi->l2nbperpage); in diWrite()
618 rel_inode = (ino & (INOSPERPAGE - 1)); in diWrite()
619 pageno = blkno >> sbi->l2nbperpage; in diWrite()
621 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diWrite()
626 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diWrite()
629 rel_inode += block_offset << sbi->l2niperblk; in diWrite()
632 rel_inode -= inodes_left; in diWrite()
637 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diWrite()
639 return -EIO; in diWrite()
642 dp = (struct dinode *) mp->data; in diWrite()
645 dioffset = (ino & (INOSPERPAGE - 1)) << L2DISIZE; in diWrite()
648 * acquire transaction lock on the on-disk inode; in diWrite()
654 dilinelock = (struct linelock *) & ditlck->lock; in diWrite()
657 * copy btree root from in-memory inode to on-disk inode in diWrite()
659 * (tlock is taken from inline B+-tree root in in-memory in diWrite()
660 * inode when the B+-tree root is updated, which is pointed in diWrite()
661 * by jfs_ip->blid as well as being on tx tlock list) in diWrite()
664 * in in-memory inode, where txLog() will log from, and, in diWrite()
665 * for xtree root, txUpdateMap() will update map and reset in diWrite()
669 if (S_ISDIR(ip->i_mode) && (lid = jfs_ip->xtlid)) { in diWrite()
677 jfs_ip->xtlid = 0; in diWrite()
679 assert(tlck->type & tlckXTREE); in diWrite()
680 tlck->type |= tlckBTROOT; in diWrite()
681 tlck->mp = mp; in diWrite()
682 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
687 p = &jfs_ip->i_xtroot; in diWrite()
688 xp = (xtpage_t *) &dp->di_dirtable; in diWrite()
689 lv = ilinelock->lv; in diWrite()
690 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
691 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
692 lv->length << L2XTSLOTSIZE); in diWrite()
695 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
696 xad = &xp->xad[XTENTRYSTART]; in diWrite()
698 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
699 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
700 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
703 if ((lid = jfs_ip->blid) == 0) in diWrite()
705 jfs_ip->blid = 0; in diWrite()
708 type = tlck->type; in diWrite()
709 tlck->type |= tlckBTROOT; in diWrite()
710 tlck->mp = mp; in diWrite()
711 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
723 p = &jfs_ip->i_xtroot; in diWrite()
724 xp = &dp->di_xtroot; in diWrite()
725 lv = ilinelock->lv; in diWrite()
726 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
727 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
728 lv->length << L2XTSLOTSIZE); in diWrite()
731 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
732 xad = &xp->xad[XTENTRYSTART]; in diWrite()
734 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
735 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
736 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
747 p = (dtpage_t *) &jfs_ip->i_dtroot; in diWrite()
748 xp = (dtpage_t *) & dp->di_dtroot; in diWrite()
749 lv = ilinelock->lv; in diWrite()
750 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
751 memcpy(&xp->slot[lv->offset], &p->slot[lv->offset], in diWrite()
752 lv->length << L2DTSLOTSIZE); in diWrite()
760 * copy inline symlink from in-memory inode to on-disk inode in diWrite()
762 if (S_ISLNK(ip->i_mode) && ip->i_size < IDATASIZE) { in diWrite()
763 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
764 lv->offset = (dioffset + 2 * 128) >> L2INODESLOTSIZE; in diWrite()
765 lv->length = 2; in diWrite()
766 memcpy(&dp->di_fastsymlink, jfs_ip->i_inline, IDATASIZE); in diWrite()
767 dilinelock->index++; in diWrite()
770 * copy inline data from in-memory inode to on-disk inode: in diWrite()
774 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
775 lv->offset = (dioffset + 3 * 128) >> L2INODESLOTSIZE; in diWrite()
776 lv->length = 1; in diWrite()
777 memcpy(&dp->di_inlineea, jfs_ip->i_inline_ea, INODESLOTSIZE); in diWrite()
778 dilinelock->index++; in diWrite()
786 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
787 lv->offset = dioffset >> L2INODESLOTSIZE; in diWrite()
790 lv->length = 2; in diWrite()
791 memcpy(&dp->di_dirtable, &jfs_ip->i_dirtable, 96); in diWrite()
793 lv->length = 1; in diWrite()
794 dilinelock->index++; in diWrite()
796 /* release the buffer holding the updated on-disk inode. in diWrite()
801 return (rc); in diWrite()
806 * NAME: diFree(ip)
808 * FUNCTION: free a specified inode from the inode working map
829 * the inode map's free iag list.
837 * ip - inode to be freed.
840 * 0 - success
841 * -EIO - i/o error.
845 int rc; in diFree() local
846 ino_t inum = ip->i_ino; in diFree()
852 struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; in diFree()
853 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diFree()
871 * the map. in diFree()
873 if (iagno >= imap->im_nextiag) { in diFree()
876 jfs_error(ip->i_sb, "inum = %d, iagno = %d, nextiag = %d\n", in diFree()
877 (uint) inum, iagno, imap->im_nextiag); in diFree()
878 return -EIO; in diFree()
883 agno = BLKTOAG(JFS_IP(ip)->agstart, JFS_SBI(ip->i_sb)); in diFree()
885 /* Lock the AG specific inode map information in diFree()
896 if ((rc = diIAGRead(imap, iagno, &mp))) { in diFree()
899 return (rc); in diFree()
901 iagp = (struct iag *) mp->data; in diFree()
906 ino = inum & (INOSPERIAG - 1); in diFree()
908 bitno = ino & (INOSPEREXT - 1); in diFree()
911 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diFree()
912 jfs_error(ip->i_sb, "wmap shows inode already free\n"); in diFree()
915 if (!addressPXD(&iagp->inoext[extno])) { in diFree()
919 jfs_error(ip->i_sb, "invalid inoext\n"); in diFree()
920 return -EIO; in diFree()
925 bitmap = le32_to_cpu(iagp->wmap[extno]) & ~mask; in diFree()
927 if (imap->im_agctl[agno].numfree > imap->im_agctl[agno].numinos) { in diFree()
931 jfs_error(ip->i_sb, "numfree > numinos\n"); in diFree()
932 return -EIO; in diFree()
939 imap->im_agctl[agno].numfree < 96 || in diFree()
940 (imap->im_agctl[agno].numfree < 288 && in diFree()
941 (((imap->im_agctl[agno].numfree * 100) / in diFree()
942 imap->im_agctl[agno].numinos) <= 25))) { in diFree()
947 if (iagp->nfreeinos == 0) { in diFree()
953 if ((fwd = imap->im_agctl[agno].inofree) >= 0) { in diFree()
957 if ((rc = diIAGRead(imap, fwd, &))) { in diFree()
961 return (rc); in diFree()
963 aiagp = (struct iag *) amp->data; in diFree()
967 aiagp->inofreeback = cpu_to_le32(iagno); in diFree()
975 iagp->inofreefwd = in diFree()
976 cpu_to_le32(imap->im_agctl[agno].inofree); in diFree()
977 iagp->inofreeback = cpu_to_le32(-1); in diFree()
978 imap->im_agctl[agno].inofree = iagno; in diFree()
982 /* update the free inode summary map for the extent if in diFree()
987 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diFree()
989 bitno = extno & (EXTSPERSUM - 1); in diFree()
990 iagp->inosmap[sword] &= in diFree()
996 iagp->wmap[extno] = cpu_to_le32(bitmap); in diFree()
999 * map level. in diFree()
1001 le32_add_cpu(&iagp->nfreeinos, 1); in diFree()
1002 imap->im_agctl[agno].numfree += 1; in diFree()
1003 atomic_inc(&imap->im_numfree); in diFree()
1005 /* release the AG inode map lock in diFree()
1025 fwd = back = -1; in diFree()
1030 if (iagp->nfreeexts == 0) { in diFree()
1037 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diFree()
1038 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1040 aiagp = (struct iag *) amp->data; in diFree()
1046 * free list and placed on the inode map's free iag list. in diFree()
1048 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1054 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diFree()
1055 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1057 aiagp = (struct iag *) amp->data; in diFree()
1060 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diFree()
1061 if ((rc = diIAGRead(imap, back, &bmp))) in diFree()
1063 biagp = (struct iag *) bmp->data; in diFree()
1071 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1072 int inofreeback = le32_to_cpu(iagp->inofreeback); in diFree()
1073 int inofreefwd = le32_to_cpu(iagp->inofreefwd); in diFree()
1080 * from up above, since re-reading an iag (buffer) in diFree()
1086 ciagp = (struct iag *) amp->data; in diFree()
1088 ciagp = (struct iag *) bmp->data; in diFree()
1090 if ((rc = in diFree()
1093 ciagp = (struct iag *) cmp->data; in diFree()
1100 diagp = (struct iag *) amp->data; in diFree()
1102 diagp = (struct iag *) bmp->data; in diFree()
1104 if ((rc = in diFree()
1107 diagp = (struct iag *) dmp->data; in diFree()
1118 freepxd = iagp->inoext[extno]; in diFree()
1127 if (iagp->nfreeexts == 0) { in diFree()
1129 aiagp->extfreeback = cpu_to_le32(iagno); in diFree()
1131 iagp->extfreefwd = in diFree()
1132 cpu_to_le32(imap->im_agctl[agno].extfree); in diFree()
1133 iagp->extfreeback = cpu_to_le32(-1); in diFree()
1134 imap->im_agctl[agno].extfree = iagno; in diFree()
1137 * are now free and place it on the inode map iag free list. in diFree()
1139 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1141 aiagp->extfreeback = iagp->extfreeback; in diFree()
1144 biagp->extfreefwd = iagp->extfreefwd; in diFree()
1146 imap->im_agctl[agno].extfree = in diFree()
1147 le32_to_cpu(iagp->extfreefwd); in diFree()
1149 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diFree()
1152 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diFree()
1153 imap->im_freeiag = iagno; in diFree()
1161 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1162 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) in diFree()
1163 ciagp->inofreeback = iagp->inofreeback; in diFree()
1165 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) in diFree()
1166 diagp->inofreefwd = iagp->inofreefwd; in diFree()
1168 imap->im_agctl[agno].inofree = in diFree()
1169 le32_to_cpu(iagp->inofreefwd); in diFree()
1171 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diFree()
1174 /* update the inode extent address and working map in diFree()
1176 * the permanent map should have been updated already in diFree()
1179 if (iagp->pmap[extno] != 0) { in diFree()
1180 jfs_error(ip->i_sb, "the pmap does not show inode free\n"); in diFree()
1182 iagp->wmap[extno] = 0; in diFree()
1183 PXDlength(&iagp->inoext[extno], 0); in diFree()
1184 PXDaddress(&iagp->inoext[extno], 0); in diFree()
1188 * the inode summary map is marked to indicate no inodes in diFree()
1192 bitno = extno & (EXTSPERSUM - 1); in diFree()
1194 iagp->inosmap[sword] |= cpu_to_le32(mask); in diFree()
1195 iagp->extsmap[sword] &= cpu_to_le32(~mask); in diFree()
1200 le32_add_cpu(&iagp->nfreeinos, -(INOSPEREXT - 1)); in diFree()
1201 le32_add_cpu(&iagp->nfreeexts, 1); in diFree()
1204 * at the ag and inode map level. in diFree()
1206 imap->im_agctl[agno].numfree -= (INOSPEREXT - 1); in diFree()
1207 imap->im_agctl[agno].numinos -= INOSPEREXT; in diFree()
1208 atomic_sub(INOSPEREXT - 1, &imap->im_numfree); in diFree()
1209 atomic_sub(INOSPEREXT, &imap->im_numinos); in diFree()
1221 * start transaction to update block allocation map in diFree()
1229 tid = txBegin(ipimap->i_sb, COMMIT_FORCE); in diFree()
1230 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1240 pxdlock = (struct pxd_lock *) & tlck->lock; in diFree()
1241 pxdlock->flag = mlckFREEPXD; in diFree()
1242 pxdlock->pxd = freepxd; in diFree()
1243 pxdlock->index = 1; in diFree()
1260 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diFree()
1263 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1265 /* unlock the AG inode map information */ in diFree()
1286 return (rc); in diFree()
1298 ip->i_ino = (iagno << L2INOSPERIAG) + ino; in diInitInode()
1299 jfs_ip->ixpxd = iagp->inoext[extno]; in diInitInode()
1300 jfs_ip->agstart = le64_to_cpu(iagp->agstart); in diInitInode()
1301 jfs_ip->active_ag = -1; in diInitInode()
1306 * NAME: diAlloc(pip,dir,ip)
1308 * FUNCTION: allocate a disk inode from the inode working map
1312 * pip - pointer to incore inode for the parent inode.
1313 * dir - 'true' if the new disk inode is for a directory.
1314 * ip - pointer to a new inode
1317 * 0 - success.
1318 * -ENOSPC - insufficient disk resources.
1319 * -EIO - i/o error.
1323 int rc, ino, iagno, addext, extno, bitno, sword; in diAlloc() local
1332 /* get the pointers to the inode map inode and the in diAlloc()
1335 ipimap = JFS_SBI(pip->i_sb)->ipimap; in diAlloc()
1336 imap = JFS_IP(ipimap)->i_imap; in diAlloc()
1337 JFS_IP(ip)->ipimap = ipimap; in diAlloc()
1338 JFS_IP(ip)->fileset = FILESYSTEM_I; in diAlloc()
1344 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1353 * hint. (we use a left-to-right policy to attempt to avoid in diAlloc()
1359 agno = BLKTOAG(JFS_IP(pip)->agstart, JFS_SBI(pip->i_sb)); in diAlloc()
1361 if (atomic_read(&JFS_SBI(pip->i_sb)->bmap->db_active[agno])) { in diAlloc()
1367 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1372 inum = pip->i_ino + 1; in diAlloc()
1373 ino = inum & (INOSPERIAG - 1); in diAlloc()
1377 inum = pip->i_ino; in diAlloc()
1379 /* lock the AG inode map information */ in diAlloc()
1387 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAlloc()
1390 return (rc); in diAlloc()
1392 iagp = (struct iag *) mp->data; in diAlloc()
1398 addext = (imap->im_agctl[agno].numfree < 32 && iagp->nfreeexts); in diAlloc()
1406 if (iagp->nfreeinos || addext) { in diAlloc()
1414 if (addressPXD(&iagp->inoext[extno])) { in diAlloc()
1415 bitno = ino & (INOSPEREXT - 1); in diAlloc()
1417 diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1425 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1427 if (rc) { in diAlloc()
1428 assert(rc == -EIO); in diAlloc()
1442 return (rc); in diAlloc()
1448 EXTSPERIAG - 1) ? 0 : extno + 1; in diAlloc()
1460 * here, so determine the starting summary map position in diAlloc()
1464 * map that represent extents prior to the extent containing in diAlloc()
1467 bitno = extno & (EXTSPERSUM - 1); in diAlloc()
1472 * summary map. in diAlloc()
1474 mask = (bitno == 0) ? 0 : (ONES << (EXTSPERSUM - bitno)); in diAlloc()
1475 inosmap = le32_to_cpu(iagp->inosmap[sword]) | mask; in diAlloc()
1476 extsmap = le32_to_cpu(iagp->extsmap[sword]) | mask; in diAlloc()
1483 * map describes an extent with free inodes. in diAlloc()
1492 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1498 jfs_error(ip->i_sb, in diAlloc()
1500 return -EIO; in diAlloc()
1505 * map. in diAlloc()
1508 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1510 if (rc) in diAlloc()
1511 assert(rc == -EIO); in diAlloc()
1525 return (rc); in diAlloc()
1531 * extents summary map describes a free extent. in diAlloc()
1542 if ((rc = diNewExt(imap, iagp, extno))) { in diAlloc()
1547 if (rc == -ENOSPC) in diAlloc()
1550 assert(rc == -EIO); in diAlloc()
1565 return (rc); in diAlloc()
1568 /* move on to the next set of summary map words. in diAlloc()
1570 sword = (sword == SMAPSZ - 1) ? 0 : sword + 1; in diAlloc()
1571 inosmap = le32_to_cpu(iagp->inosmap[sword]); in diAlloc()
1572 extsmap = le32_to_cpu(iagp->extsmap[sword]); in diAlloc()
1585 rc = diAllocAG(imap, agno, dir, ip); in diAlloc()
1589 if (rc != -ENOSPC) in diAlloc()
1590 return (rc); in diAlloc()
1600 * NAME: diAllocAG(imap,agno,dir,ip)
1616 * imap - pointer to inode map control structure.
1617 * agno - allocation group to allocate from.
1618 * dir - 'true' if the new disk inode is for a directory.
1619 * ip - pointer to the new inode to be filled in on successful return
1624 * 0 - success.
1625 * -ENOSPC - insufficient disk resources.
1626 * -EIO - i/o error.
1631 int rc, addext, numfree, numinos; in diAllocAG() local
1636 numfree = imap->im_agctl[agno].numfree; in diAllocAG()
1637 numinos = imap->im_agctl[agno].numinos; in diAllocAG()
1640 jfs_error(ip->i_sb, "numfree > numinos\n"); in diAllocAG()
1641 return -EIO; in diAllocAG()
1664 if ((rc = diAllocExt(imap, agno, ip)) != -ENOSPC) in diAllocAG()
1665 return (rc); in diAllocAG()
1676 * NAME: diAllocAny(imap,agno,dir,iap)
1686 * imap - pointer to inode map control structure.
1687 * agno - primary allocation group (to avoid).
1688 * dir - 'true' if the new disk inode is for a directory.
1689 * ip - pointer to a new inode to be filled in on successful return
1694 * 0 - success.
1695 * -ENOSPC - insufficient disk resources.
1696 * -EIO - i/o error.
1701 int ag, rc; in diAllocAny() local
1702 int maxag = JFS_SBI(imap->im_ipimap->i_sb)->bmap->db_maxag; in diAllocAny()
1711 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1715 if (rc != -ENOSPC) in diAllocAny()
1716 return (rc); in diAllocAny()
1724 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1728 if (rc != -ENOSPC) in diAllocAny()
1729 return (rc); in diAllocAny()
1734 return -ENOSPC; in diAllocAny()
1739 * NAME: diAllocIno(imap,agno,ip)
1746 * the iag's free inode summary map to find the leftmost
1752 * imap - pointer to inode map control structure.
1753 * agno - allocation group.
1754 * ip - pointer to new inode to be filled in on successful return
1759 * 0 - success.
1760 * -ENOSPC - insufficient disk resources.
1761 * -EIO - i/o error.
1765 int iagno, ino, rc, rem, extno, sword; in diAllocIno() local
1771 if ((iagno = imap->im_agctl[agno].inofree) < 0) in diAllocIno()
1772 return -ENOSPC; in diAllocIno()
1775 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocIno()
1779 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocIno()
1780 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1781 return (rc); in diAllocIno()
1783 iagp = (struct iag *) mp->data; in diAllocIno()
1788 if (!iagp->nfreeinos) { in diAllocIno()
1789 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1791 jfs_error(ip->i_sb, "nfreeinos = 0, but iag on freelist\n"); in diAllocIno()
1792 return -EIO; in diAllocIno()
1795 /* scan the free inode summary map to find an extent in diAllocIno()
1800 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1802 jfs_error(ip->i_sb, in diAllocIno()
1803 "free inode not found in summary map\n"); in diAllocIno()
1804 return -EIO; in diAllocIno()
1807 if (~iagp->inosmap[sword]) in diAllocIno()
1814 rem = diFindFree(le32_to_cpu(iagp->inosmap[sword]), 0); in diAllocIno()
1816 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1818 jfs_error(ip->i_sb, "no free extent found\n"); in diAllocIno()
1819 return -EIO; in diAllocIno()
1825 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), 0); in diAllocIno()
1827 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1829 jfs_error(ip->i_sb, "free inode not found\n"); in diAllocIno()
1830 return -EIO; in diAllocIno()
1839 rc = diAllocBit(imap, iagp, ino); in diAllocIno()
1840 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1841 if (rc) { in diAllocIno()
1843 return (rc); in diAllocIno()
1856 * NAME: diAllocExt(imap,agno,ip)
1869 * once an iag has been selected, the free extent summary map
1876 * imap - pointer to inode map control structure.
1877 * agno - allocation group number.
1878 * ip - pointer to new inode to be filled in on successful return
1883 * 0 - success.
1884 * -ENOSPC - insufficient disk resources.
1885 * -EIO - i/o error.
1889 int rem, iagno, sword, extno, rc; in diAllocExt() local
1896 if ((iagno = imap->im_agctl[agno].extfree) < 0) { in diAllocExt()
1900 if ((rc = diNewIAG(imap, &iagno, agno, &mp))) { in diAllocExt()
1901 return (rc); in diAllocExt()
1903 iagp = (struct iag *) mp->data; in diAllocExt()
1907 iagp->agstart = in diAllocExt()
1908 cpu_to_le64(AGTOBLK(agno, imap->im_ipimap)); in diAllocExt()
1912 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocExt()
1913 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocExt()
1914 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1915 jfs_error(ip->i_sb, "error reading iag\n"); in diAllocExt()
1916 return rc; in diAllocExt()
1918 iagp = (struct iag *) mp->data; in diAllocExt()
1921 /* using the free extent summary map, find a free extent. in diAllocExt()
1926 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1927 jfs_error(ip->i_sb, "free ext summary map not found\n"); in diAllocExt()
1928 return -EIO; in diAllocExt()
1930 if (~iagp->extsmap[sword]) in diAllocExt()
1936 rem = diFindFree(le32_to_cpu(iagp->extsmap[sword]), 0); in diAllocExt()
1939 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1940 jfs_error(ip->i_sb, "free extent not found\n"); in diAllocExt()
1941 return -EIO; in diAllocExt()
1947 rc = diNewExt(imap, iagp, extno); in diAllocExt()
1948 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1949 if (rc) { in diAllocExt()
1951 * place it back on the inode map's iag free list, and in diAllocExt()
1954 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diAllocExt()
1956 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diAllocExt()
1957 imap->im_freeiag = iagno; in diAllocExt()
1961 return (rc); in diAllocExt()
1975 * NAME: diAllocBit(imap,iagp,ino)
1995 * imap - pointer to inode map control structure.
1996 * iagp - pointer to iag.
1997 * ino - inode number to be allocated within the iag.
2000 * 0 - success.
2001 * -ENOSPC - insufficient disk resources.
2002 * -EIO - i/o error.
2006 int extno, bitno, agno, sword, rc; in diAllocBit() local
2016 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2017 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) { in diAllocBit()
2018 if ((rc = in diAllocBit()
2019 diIAGRead(imap, le32_to_cpu(iagp->inofreefwd), in diAllocBit()
2021 return (rc); in diAllocBit()
2022 aiagp = (struct iag *) amp->data; in diAllocBit()
2025 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) { in diAllocBit()
2026 if ((rc = in diAllocBit()
2028 le32_to_cpu(iagp->inofreeback), in diAllocBit()
2032 return (rc); in diAllocBit()
2034 biagp = (struct iag *) bmp->data; in diAllocBit()
2041 agno = BLKTOAG(le64_to_cpu(iagp->agstart), JFS_SBI(imap->im_ipimap->i_sb)); in diAllocBit()
2043 bitno = ino & (INOSPEREXT - 1); in diAllocBit()
2045 /* compute the mask for setting the map. in diAllocBit()
2051 if (((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) || in diAllocBit()
2052 ((le32_to_cpu(iagp->wmap[extno]) & mask) != 0) || in diAllocBit()
2053 (addressPXD(&iagp->inoext[extno]) == 0)) { in diAllocBit()
2059 jfs_error(imap->im_ipimap->i_sb, "iag inconsistent\n"); in diAllocBit()
2060 return -EIO; in diAllocBit()
2063 /* mark the inode as allocated in the working map. in diAllocBit()
2065 iagp->wmap[extno] |= cpu_to_le32(mask); in diAllocBit()
2069 * map to reflect this. in diAllocBit()
2071 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diAllocBit()
2073 bitno = extno & (EXTSPERSUM - 1); in diAllocBit()
2074 iagp->inosmap[sword] |= cpu_to_le32(HIGHORDER >> bitno); in diAllocBit()
2080 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2082 aiagp->inofreeback = iagp->inofreeback; in diAllocBit()
2087 biagp->inofreefwd = iagp->inofreefwd; in diAllocBit()
2090 imap->im_agctl[agno].inofree = in diAllocBit()
2091 le32_to_cpu(iagp->inofreefwd); in diAllocBit()
2093 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diAllocBit()
2097 * map levels. in diAllocBit()
2099 le32_add_cpu(&iagp->nfreeinos, -1); in diAllocBit()
2100 imap->im_agctl[agno].numfree -= 1; in diAllocBit()
2101 atomic_dec(&imap->im_numfree); in diAllocBit()
2108 * NAME: diNewExt(imap,iagp,extno)
2141 * imap - pointer to inode map control structure.
2142 * iagp - pointer to iag.
2143 * extno - extent number.
2146 * 0 - success.
2147 * -ENOSPC - insufficient disk resources.
2148 * -EIO - i/o error.
2152 int agno, iagno, fwd, back, freei = 0, sword, rc; in diNewExt() local
2165 if (!iagp->nfreeexts) { in diNewExt()
2166 jfs_error(imap->im_ipimap->i_sb, "no free extents\n"); in diNewExt()
2167 return -EIO; in diNewExt()
2170 /* get the inode map inode. in diNewExt()
2172 ipimap = imap->im_ipimap; in diNewExt()
2173 sbi = JFS_SBI(ipimap->i_sb); in diNewExt()
2179 agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi); in diNewExt()
2180 iagno = le32_to_cpu(iagp->iagnum); in diNewExt()
2187 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2188 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diNewExt()
2189 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2190 return (rc); in diNewExt()
2191 aiagp = (struct iag *) amp->data; in diNewExt()
2194 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diNewExt()
2195 if ((rc = diIAGRead(imap, back, &bmp))) in diNewExt()
2197 biagp = (struct iag *) bmp->data; in diNewExt()
2206 fwd = back = -1; in diNewExt()
2207 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2208 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diNewExt()
2209 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2211 aiagp = (struct iag *) amp->data; in diNewExt()
2223 if (iagp->nfreeinos == 0) { in diNewExt()
2224 freei = imap->im_agctl[agno].inofree; in diNewExt()
2232 if ((rc = diIAGRead(imap, freei, &cmp))) in diNewExt()
2234 ciagp = (struct iag *) cmp->data; in diNewExt()
2237 jfs_error(imap->im_ipimap->i_sb, in diNewExt()
2239 rc = -EIO; in diNewExt()
2247 if ((extno == 0) || (addressPXD(&iagp->inoext[extno - 1]) == 0)) in diNewExt()
2248 hint = ((s64) agno << sbi->bmap->db_agl2size) - 1; in diNewExt()
2250 hint = addressPXD(&iagp->inoext[extno - 1]) + in diNewExt()
2251 lengthPXD(&iagp->inoext[extno - 1]) - 1; in diNewExt()
2253 if ((rc = dbAlloc(ipimap, hint, (s64) imap->im_nbperiext, &blkno))) in diNewExt()
2264 for (i = 0; i < imap->im_nbperiext; i += sbi->nbperpage) { in diNewExt()
2269 rc = -EIO; in diNewExt()
2272 dp = (struct dinode *) dmp->data; in diNewExt()
2278 dp->di_inostamp = cpu_to_le32(sbi->inostamp); in diNewExt()
2279 dp->di_number = cpu_to_le32(ino); in diNewExt()
2280 dp->di_fileset = cpu_to_le32(FILESYSTEM_I); in diNewExt()
2281 dp->di_mode = 0; in diNewExt()
2282 dp->di_nlink = 0; in diNewExt()
2283 PXDaddress(&(dp->di_ixpxd), blkno); in diNewExt()
2284 PXDlength(&(dp->di_ixpxd), imap->im_nbperiext); in diNewExt()
2292 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2294 aiagp->extfreeback = iagp->extfreeback; in diNewExt()
2297 biagp->extfreefwd = iagp->extfreefwd; in diNewExt()
2299 imap->im_agctl[agno].extfree = in diNewExt()
2300 le32_to_cpu(iagp->extfreefwd); in diNewExt()
2302 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2307 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2309 aiagp->extfreeback = cpu_to_le32(iagno); in diNewExt()
2311 iagp->extfreefwd = cpu_to_le32(fwd); in diNewExt()
2312 iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2313 imap->im_agctl[agno].extfree = iagno; in diNewExt()
2320 if (iagp->nfreeinos == 0) { in diNewExt()
2322 ciagp->inofreeback = cpu_to_le32(iagno); in diNewExt()
2324 iagp->inofreefwd = in diNewExt()
2325 cpu_to_le32(imap->im_agctl[agno].inofree); in diNewExt()
2326 iagp->inofreeback = cpu_to_le32(-1); in diNewExt()
2327 imap->im_agctl[agno].inofree = iagno; in diNewExt()
2331 PXDlength(&iagp->inoext[extno], imap->im_nbperiext); in diNewExt()
2332 PXDaddress(&iagp->inoext[extno], blkno); in diNewExt()
2334 /* initialize the working and persistent map of the extent. in diNewExt()
2335 * the working map will be initialized such that in diNewExt()
2338 iagp->wmap[extno] = cpu_to_le32(HIGHORDER); in diNewExt()
2339 iagp->pmap[extno] = 0; in diNewExt()
2346 mask = HIGHORDER >> (extno & (EXTSPERSUM - 1)); in diNewExt()
2347 iagp->extsmap[sword] |= cpu_to_le32(mask); in diNewExt()
2348 iagp->inosmap[sword] &= cpu_to_le32(~mask); in diNewExt()
2353 le32_add_cpu(&iagp->nfreeinos, (INOSPEREXT - 1)); in diNewExt()
2354 le32_add_cpu(&iagp->nfreeexts, -1); in diNewExt()
2358 imap->im_agctl[agno].numfree += (INOSPEREXT - 1); in diNewExt()
2359 imap->im_agctl[agno].numinos += INOSPEREXT; in diNewExt()
2361 /* update the free and backed inode counts for the inode map. in diNewExt()
2363 atomic_add(INOSPEREXT - 1, &imap->im_numfree); in diNewExt()
2364 atomic_add(INOSPEREXT, &imap->im_numinos); in diNewExt()
2388 return (rc); in diNewExt()
2393 * NAME: diNewIAG(imap,iagnop,agno)
2397 * first tries to allocate the iag from the inode map
2401 * if the inode map's iag free list is empty, the inode map
2406 * imap - pointer to inode map control structure.
2407 * iagnop - pointer to an iag number set with the number of the
2409 * agno - allocation group number.
2410 * bpp - Buffer pointer to be filled in with new IAG's buffer
2413 * 0 - success.
2414 * -ENOSPC - insufficient disk resources.
2415 * -EIO - i/o error.
2419 * write lock on the map is held inside;
2420 * read lock on the map is held on successful completion;
2427 * . at start of logredo(): init in-memory imap with one additional iag page;
2428 * . at end of logredo(): re-read imap inode to determine
2434 int rc; in diNewIAG() local
2446 /* pick up pointers to the inode map and mount inodes */ in diNewIAG()
2447 ipimap = imap->im_ipimap; in diNewIAG()
2448 sb = ipimap->i_sb; in diNewIAG()
2454 /* if there are any iags on the inode map free iag list, in diNewIAG()
2457 if (imap->im_freeiag >= 0) { in diNewIAG()
2459 iagno = imap->im_freeiag; in diNewIAG()
2462 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2464 /* no free iags. the inode map will have to be extented in diNewIAG()
2468 /* acquire inode map lock */ in diNewIAG()
2471 if (ipimap->i_size >> L2PSIZE != imap->im_nextiag + 1) { in diNewIAG()
2474 jfs_error(imap->im_ipimap->i_sb, in diNewIAG()
2475 "ipimap->i_size is wrong\n"); in diNewIAG()
2476 return -EIO; in diNewIAG()
2481 iagno = imap->im_nextiag; in diNewIAG()
2486 if (iagno > (MAXIAGS - 1)) { in diNewIAG()
2487 /* release the inode map lock */ in diNewIAG()
2490 rc = -ENOSPC; in diNewIAG()
2498 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2501 xlen = sbi->nbperpage; in diNewIAG()
2502 if ((rc = dbAlloc(ipimap, 0, (s64) xlen, &xaddr))) { in diNewIAG()
2503 /* release the inode map lock */ in diNewIAG()
2510 * start transaction of update of the inode map in diNewIAG()
2514 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2516 /* update the inode map addressing structure to point to it */ in diNewIAG()
2517 if ((rc = in diNewIAG()
2520 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2522 * not successfully added to the inode map in diNewIAG()
2526 /* release the inode map lock */ in diNewIAG()
2532 /* update the inode map's inode to reflect the extension */ in diNewIAG()
2533 ipimap->i_size += PSIZE; in diNewIAG()
2543 xtTruncate(tid, ipimap, ipimap->i_size - PSIZE, in diNewIAG()
2548 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2550 /* release the inode map lock */ in diNewIAG()
2553 rc = -EIO; in diNewIAG()
2556 iagp = (struct iag *) mp->data; in diNewIAG()
2560 iagp->iagnum = cpu_to_le32(iagno); in diNewIAG()
2561 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diNewIAG()
2562 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewIAG()
2563 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2564 iagp->nfreeinos = 0; in diNewIAG()
2565 iagp->nfreeexts = cpu_to_le32(EXTSPERIAG); in diNewIAG()
2567 /* initialize the free inode summary map (free extent in diNewIAG()
2568 * summary map initialization handled by bzero). in diNewIAG()
2571 iagp->inosmap[i] = cpu_to_le32(ONES); in diNewIAG()
2584 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diNewIAG()
2587 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2592 imap->im_nextiag += 1; in diNewIAG()
2597 imap->im_freeiag = iagno; in diNewIAG()
2604 /* release the inode map lock */ in diNewIAG()
2608 /* obtain read lock on map */ in diNewIAG()
2612 if ((rc = diIAGRead(imap, iagno, &mp))) { in diNewIAG()
2614 rc = -EIO; in diNewIAG()
2617 iagp = (struct iag *) mp->data; in diNewIAG()
2620 imap->im_freeiag = le32_to_cpu(iagp->iagfree); in diNewIAG()
2621 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2631 return (rc); in diNewIAG()
2635 * NAME: diIAGRead()
2638 * or aggregate inode map.
2641 * imap - pointer to inode map control structure.
2642 * iagno - iag number.
2643 * bpp - point to buffer pointer to be filled in on successful
2652 * 0 - success.
2653 * -EIO - i/o error.
2657 struct inode *ipimap = imap->im_ipimap; in diIAGRead()
2661 blkno = IAGTOLBLK(iagno, JFS_SBI(ipimap->i_sb)->l2nbperpage); in diIAGRead()
2666 return -EIO; in diIAGRead()
2673 * NAME: diFindFree()
2679 * word - word to be examined.
2680 * start - starting bit position.
2700 * NAME: diUpdatePMap()
2702 * FUNCTION: Update the persistent map in an IAG for the allocation or
2705 * PRE CONDITIONS: Working map has already been updated for allocate.
2708 * ipimap - Incore inode map inode
2709 * inum - Number of inode to mark in permanent map
2710 * is_free - If 'true' indicates inode should be marked freed, otherwise
2720 int rc; in diUpdatePMap() local
2730 imap = JFS_IP(ipimap)->i_imap; in diUpdatePMap()
2733 /* make sure that the iag is contained within the map */ in diUpdatePMap()
2734 if (iagno >= imap->im_nextiag) { in diUpdatePMap()
2735 jfs_error(ipimap->i_sb, "the iag is outside the map\n"); in diUpdatePMap()
2736 return -EIO; in diUpdatePMap()
2740 rc = diIAGRead(imap, iagno, &mp); in diUpdatePMap()
2742 if (rc) in diUpdatePMap()
2743 return (rc); in diUpdatePMap()
2745 iagp = (struct iag *) mp->data; in diUpdatePMap()
2749 ino = inum & (INOSPERIAG - 1); in diUpdatePMap()
2751 bitno = ino & (INOSPEREXT - 1); in diUpdatePMap()
2754 * mark the inode free in persistent map: in diUpdatePMap()
2758 * map and in persistent map; in diUpdatePMap()
2759 * the inode will be freed from working map at the release in diUpdatePMap()
2762 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2763 jfs_error(ipimap->i_sb, in diUpdatePMap()
2767 if (!(le32_to_cpu(iagp->pmap[extno]) & mask)) { in diUpdatePMap()
2768 jfs_error(ipimap->i_sb, in diUpdatePMap()
2773 iagp->pmap[extno] &= cpu_to_le32(~mask); in diUpdatePMap()
2776 * mark the inode allocated in persistent map: in diUpdatePMap()
2779 /* The inode should be already allocated in the working map in diUpdatePMap()
2780 * and should be free in persistent map; in diUpdatePMap()
2782 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2784 jfs_error(ipimap->i_sb, in diUpdatePMap()
2785 "the inode is not allocated in the working map\n"); in diUpdatePMap()
2786 return -EIO; in diUpdatePMap()
2788 if ((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) { in diUpdatePMap()
2790 jfs_error(ipimap->i_sb, in diUpdatePMap()
2791 "the inode is not free in the persistent map\n"); in diUpdatePMap()
2792 return -EIO; in diUpdatePMap()
2795 iagp->pmap[extno] |= cpu_to_le32(mask); in diUpdatePMap()
2800 lsn = tblk->lsn; in diUpdatePMap()
2801 log = JFS_SBI(tblk->sb)->log; in diUpdatePMap()
2803 if (mp->lsn != 0) { in diUpdatePMap()
2806 logdiff(diffp, mp->lsn, log); in diUpdatePMap()
2808 mp->lsn = lsn; in diUpdatePMap()
2810 list_move(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2813 assert(mp->clsn); in diUpdatePMap()
2814 logdiff(difft, tblk->clsn, log); in diUpdatePMap()
2815 logdiff(diffp, mp->clsn, log); in diUpdatePMap()
2817 mp->clsn = tblk->clsn; in diUpdatePMap()
2819 mp->log = log; in diUpdatePMap()
2820 mp->lsn = lsn; in diUpdatePMap()
2822 log->count++; in diUpdatePMap()
2823 list_add(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2824 mp->clsn = tblk->clsn; in diUpdatePMap()
2841 int rc, rcx = 0; in diExtendFS() local
2842 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diExtendFS()
2844 struct bmap *mp = JFS_SBI(ipbmap->i_sb)->bmap; in diExtendFS()
2851 imap->im_nextiag, atomic_read(&imap->im_numinos), in diExtendFS()
2852 atomic_read(&imap->im_numfree)); in diExtendFS()
2858 * i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn; in diExtendFS()
2864 imap->im_agctl[i].inofree = -1; in diExtendFS()
2865 imap->im_agctl[i].extfree = -1; in diExtendFS()
2866 imap->im_agctl[i].numinos = 0; /* number of backed inodes */ in diExtendFS()
2867 imap->im_agctl[i].numfree = 0; /* number of free backed inodes */ in diExtendFS()
2871 * process each iag page of the map. in diExtendFS()
2875 for (i = 0; i < imap->im_nextiag; i++) { in diExtendFS()
2876 if ((rc = diIAGRead(imap, i, &bp))) { in diExtendFS()
2877 rcx = rc; in diExtendFS()
2880 iagp = (struct iag *) bp->data; in diExtendFS()
2881 if (le32_to_cpu(iagp->iagnum) != i) { in diExtendFS()
2883 jfs_error(ipimap->i_sb, "unexpected value of iagnum\n"); in diExtendFS()
2884 return -EIO; in diExtendFS()
2888 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diExtendFS()
2893 agstart = le64_to_cpu(iagp->agstart); in diExtendFS()
2894 n = agstart >> mp->db_agl2size; in diExtendFS()
2895 iagp->agstart = cpu_to_le64((s64)n << mp->db_agl2size); in diExtendFS()
2898 numinos = (EXTSPERIAG - le32_to_cpu(iagp->nfreeexts)) in diExtendFS()
2902 imap->im_agctl[n].numinos += numinos; in diExtendFS()
2907 if ((int) le32_to_cpu(iagp->nfreeinos) > 0) { in diExtendFS()
2908 if ((head = imap->im_agctl[n].inofree) == -1) { in diExtendFS()
2909 iagp->inofreefwd = cpu_to_le32(-1); in diExtendFS()
2910 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2912 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2913 rcx = rc; in diExtendFS()
2916 hiagp = (struct iag *) hbp->data; in diExtendFS()
2917 hiagp->inofreeback = iagp->iagnum; in diExtendFS()
2918 iagp->inofreefwd = cpu_to_le32(head); in diExtendFS()
2919 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2923 imap->im_agctl[n].inofree = in diExtendFS()
2924 le32_to_cpu(iagp->iagnum); in diExtendFS()
2927 imap->im_agctl[n].numfree += in diExtendFS()
2928 le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2929 xnumfree += le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2933 if (le32_to_cpu(iagp->nfreeexts) > 0) { in diExtendFS()
2934 if ((head = imap->im_agctl[n].extfree) == -1) { in diExtendFS()
2935 iagp->extfreefwd = cpu_to_le32(-1); in diExtendFS()
2936 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2938 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2939 rcx = rc; in diExtendFS()
2942 hiagp = (struct iag *) hbp->data; in diExtendFS()
2943 hiagp->extfreeback = iagp->iagnum; in diExtendFS()
2944 iagp->extfreefwd = cpu_to_le32(head); in diExtendFS()
2945 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2949 imap->im_agctl[n].extfree = in diExtendFS()
2950 le32_to_cpu(iagp->iagnum); in diExtendFS()
2957 if (xnuminos != atomic_read(&imap->im_numinos) || in diExtendFS()
2958 xnumfree != atomic_read(&imap->im_numfree)) { in diExtendFS()
2959 jfs_error(ipimap->i_sb, "numinos or numfree incorrect\n"); in diExtendFS()
2960 return -EIO; in diExtendFS()
2983 if (JFS_SBI(sb)->mntflag & JFS_BAD_SAIT) /* s_flag */ in duplicateIXtree()
2987 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
2990 j_sb = (struct jfs_superblock *)bh->b_data; in duplicateIXtree()
2991 j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT); in duplicateIXtree()
3001 /* update the inode map addressing structure to point to it */ in duplicateIXtree()
3003 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
3008 /* update the inode map's inode to reflect the extension */ in duplicateIXtree()
3009 ip->i_size += PSIZE; in duplicateIXtree()
3018 * NAME: copy_from_dinode()
3020 * FUNCTION: Copies inode info from disk inode to in-memory inode
3023 * 0 - success
3024 * -ENOMEM - insufficient memory
3029 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_from_dinode()
3031 jfs_ip->fileset = le32_to_cpu(dip->di_fileset); in copy_from_dinode()
3032 jfs_ip->mode2 = le32_to_cpu(dip->di_mode); in copy_from_dinode()
3035 ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; in copy_from_dinode()
3036 if (sbi->umask != -1) { in copy_from_dinode()
3037 ip->i_mode = (ip->i_mode & ~0777) | (0777 & ~sbi->umask); in copy_from_dinode()
3039 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3040 if (ip->i_mode & 0400) in copy_from_dinode()
3041 ip->i_mode |= 0100; in copy_from_dinode()
3042 if (ip->i_mode & 0040) in copy_from_dinode()
3043 ip->i_mode |= 0010; in copy_from_dinode()
3044 if (ip->i_mode & 0004) in copy_from_dinode()
3045 ip->i_mode |= 0001; in copy_from_dinode()
3048 set_nlink(ip, le32_to_cpu(dip->di_nlink)); in copy_from_dinode()
3050 jfs_ip->saved_uid = make_kuid(&init_user_ns, le32_to_cpu(dip->di_uid)); in copy_from_dinode()
3051 if (!uid_valid(sbi->uid)) in copy_from_dinode()
3052 ip->i_uid = jfs_ip->saved_uid; in copy_from_dinode()
3054 ip->i_uid = sbi->uid; in copy_from_dinode()
3057 jfs_ip->saved_gid = make_kgid(&init_user_ns, le32_to_cpu(dip->di_gid)); in copy_from_dinode()
3058 if (!gid_valid(sbi->gid)) in copy_from_dinode()
3059 ip->i_gid = jfs_ip->saved_gid; in copy_from_dinode()
3061 ip->i_gid = sbi->gid; in copy_from_dinode()
3064 ip->i_size = le64_to_cpu(dip->di_size); in copy_from_dinode()
3065 ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec); in copy_from_dinode()
3066 ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec); in copy_from_dinode()
3067 ip->i_mtime.tv_sec = le32_to_cpu(dip->di_mtime.tv_sec); in copy_from_dinode()
3068 ip->i_mtime.tv_nsec = le32_to_cpu(dip->di_mtime.tv_nsec); in copy_from_dinode()
3069 ip->i_ctime.tv_sec = le32_to_cpu(dip->di_ctime.tv_sec); in copy_from_dinode()
3070 ip->i_ctime.tv_nsec = le32_to_cpu(dip->di_ctime.tv_nsec); in copy_from_dinode()
3071 ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks)); in copy_from_dinode()
3072 ip->i_generation = le32_to_cpu(dip->di_gen); in copy_from_dinode()
3074 jfs_ip->ixpxd = dip->di_ixpxd; /* in-memory pxd's are little-endian */ in copy_from_dinode()
3075 jfs_ip->acl = dip->di_acl; /* as are dxd's */ in copy_from_dinode()
3076 jfs_ip->ea = dip->di_ea; in copy_from_dinode()
3077 jfs_ip->next_index = le32_to_cpu(dip->di_next_index); in copy_from_dinode()
3078 jfs_ip->otime = le32_to_cpu(dip->di_otime.tv_sec); in copy_from_dinode()
3079 jfs_ip->acltype = le32_to_cpu(dip->di_acltype); in copy_from_dinode()
3081 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { in copy_from_dinode()
3082 jfs_ip->dev = le32_to_cpu(dip->di_rdev); in copy_from_dinode()
3083 ip->i_rdev = new_decode_dev(jfs_ip->dev); in copy_from_dinode()
3086 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3087 memcpy(&jfs_ip->i_dirtable, &dip->di_dirtable, 384); in copy_from_dinode()
3088 } else if (S_ISREG(ip->i_mode) || S_ISLNK(ip->i_mode)) { in copy_from_dinode()
3089 memcpy(&jfs_ip->i_xtroot, &dip->di_xtroot, 288); in copy_from_dinode()
3091 memcpy(&jfs_ip->i_inline_ea, &dip->di_inlineea, 128); in copy_from_dinode()
3093 /* Zero the in-memory-only stuff */ in copy_from_dinode()
3094 jfs_ip->cflag = 0; in copy_from_dinode()
3095 jfs_ip->btindex = 0; in copy_from_dinode()
3096 jfs_ip->btorder = 0; in copy_from_dinode()
3097 jfs_ip->bxflag = 0; in copy_from_dinode()
3098 jfs_ip->blid = 0; in copy_from_dinode()
3099 jfs_ip->atlhead = 0; in copy_from_dinode()
3100 jfs_ip->atltail = 0; in copy_from_dinode()
3101 jfs_ip->xtlid = 0; in copy_from_dinode()
3106 * NAME: copy_to_dinode()
3108 * FUNCTION: Copies inode info from in-memory inode to disk inode
3113 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_to_dinode()
3115 dip->di_fileset = cpu_to_le32(jfs_ip->fileset); in copy_to_dinode()
3116 dip->di_inostamp = cpu_to_le32(sbi->inostamp); in copy_to_dinode()
3117 dip->di_number = cpu_to_le32(ip->i_ino); in copy_to_dinode()
3118 dip->di_gen = cpu_to_le32(ip->i_generation); in copy_to_dinode()
3119 dip->di_size = cpu_to_le64(ip->i_size); in copy_to_dinode()
3120 dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); in copy_to_dinode()
3121 dip->di_nlink = cpu_to_le32(ip->i_nlink); in copy_to_dinode()
3122 if (!uid_valid(sbi->uid)) in copy_to_dinode()
3123 dip->di_uid = cpu_to_le32(i_uid_read(ip)); in copy_to_dinode()
3125 dip->di_uid =cpu_to_le32(from_kuid(&init_user_ns, in copy_to_dinode()
3126 jfs_ip->saved_uid)); in copy_to_dinode()
3127 if (!gid_valid(sbi->gid)) in copy_to_dinode()
3128 dip->di_gid = cpu_to_le32(i_gid_read(ip)); in copy_to_dinode()
3130 dip->di_gid = cpu_to_le32(from_kgid(&init_user_ns, in copy_to_dinode()
3131 jfs_ip->saved_gid)); in copy_to_dinode()
3136 if (sbi->umask == -1) in copy_to_dinode()
3137 dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | in copy_to_dinode()
3138 ip->i_mode); in copy_to_dinode()
3140 dip->di_mode = cpu_to_le32(jfs_ip->mode2); in copy_to_dinode()
3142 dip->di_atime.tv_sec = cpu_to_le32(ip->i_atime.tv_sec); in copy_to_dinode()
3143 dip->di_atime.tv_nsec = cpu_to_le32(ip->i_atime.tv_nsec); in copy_to_dinode()
3144 dip->di_ctime.tv_sec = cpu_to_le32(ip->i_ctime.tv_sec); in copy_to_dinode()
3145 dip->di_ctime.tv_nsec = cpu_to_le32(ip->i_ctime.tv_nsec); in copy_to_dinode()
3146 dip->di_mtime.tv_sec = cpu_to_le32(ip->i_mtime.tv_sec); in copy_to_dinode()
3147 dip->di_mtime.tv_nsec = cpu_to_le32(ip->i_mtime.tv_nsec); in copy_to_dinode()
3148 dip->di_ixpxd = jfs_ip->ixpxd; /* in-memory pxd's are little-endian */ in copy_to_dinode()
3149 dip->di_acl = jfs_ip->acl; /* as are dxd's */ in copy_to_dinode()
3150 dip->di_ea = jfs_ip->ea; in copy_to_dinode()
3151 dip->di_next_index = cpu_to_le32(jfs_ip->next_index); in copy_to_dinode()
3152 dip->di_otime.tv_sec = cpu_to_le32(jfs_ip->otime); in copy_to_dinode()
3153 dip->di_otime.tv_nsec = 0; in copy_to_dinode()
3154 dip->di_acltype = cpu_to_le32(jfs_ip->acltype); in copy_to_dinode()
3155 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) in copy_to_dinode()
3156 dip->di_rdev = cpu_to_le32(jfs_ip->dev); in copy_to_dinode()