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()
198 JFS_IP(ipimap)->i_imap = NULL; in diUnmount()
210 struct inomap *imp = JFS_IP(ipimap)->i_imap; in diSync()
217 /* read the on-disk inode map control structure */ in diSync()
219 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diSync()
223 return -EIO; in diSync()
226 /* copy the in-memory version to the on-disk version */ in diSync()
227 dinom_le = (struct dinomap_disk *) mp->data; in diSync()
228 dinom_le->in_freeiag = cpu_to_le32(imp->im_freeiag); in diSync()
229 dinom_le->in_nextiag = cpu_to_le32(imp->im_nextiag); in diSync()
230 dinom_le->in_numinos = cpu_to_le32(atomic_read(&imp->im_numinos)); in diSync()
231 dinom_le->in_numfree = cpu_to_le32(atomic_read(&imp->im_numfree)); in diSync()
232 dinom_le->in_nbperiext = cpu_to_le32(imp->im_nbperiext); in diSync()
233 dinom_le->in_l2nbperiext = cpu_to_le32(imp->im_l2nbperiext); in diSync()
235 dinom_le->in_agctl[index].inofree = in diSync()
236 cpu_to_le32(imp->im_agctl[index].inofree); in diSync()
237 dinom_le->in_agctl[index].extfree = in diSync()
238 cpu_to_le32(imp->im_agctl[index].extfree); in diSync()
239 dinom_le->in_agctl[index].numinos = in diSync()
240 cpu_to_le32(imp->im_agctl[index].numinos); in diSync()
241 dinom_le->in_agctl[index].numfree = in diSync()
242 cpu_to_le32(imp->im_agctl[index].numfree); in diSync()
251 filemap_write_and_wait(ipimap->i_mapping); in diSync()
260 * NAME: diRead()
273 * identified by a NULL inode map inode pointer and are
284 * ip - pointer to incore inode to be initialized from disk.
287 * 0 - success
288 * -EIO - i/o error.
289 * -ENOMEM - insufficient memory
294 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diRead()
295 int iagno, ino, extno, rc; in diRead() local
307 jfs_info("diRead: ino = %ld", ip->i_ino); in diRead()
309 ipimap = sbi->ipimap; in diRead()
310 JFS_IP(ip)->ipimap = ipimap; in diRead()
313 iagno = INOTOIAG(ip->i_ino); in diRead()
316 imap = JFS_IP(ipimap)->i_imap; in diRead()
318 rc = diIAGRead(imap, iagno, &mp); in diRead()
320 if (rc) { in diRead()
321 jfs_err("diRead: diIAGRead returned %d", rc); in diRead()
322 return (rc); in diRead()
325 iagp = (struct iag *) mp->data; in diRead()
328 ino = ip->i_ino & (INOSPERIAG - 1); in diRead()
331 if ((lengthPXD(&iagp->inoext[extno]) != imap->im_nbperiext) || in diRead()
332 (addressPXD(&iagp->inoext[extno]) == 0)) { in diRead()
334 return -ESTALE; in diRead()
340 blkno = INOPBLK(&iagp->inoext[extno], ino, sbi->l2nbperpage); in diRead()
343 agstart = le64_to_cpu(iagp->agstart); in diRead()
347 rel_inode = (ino & (INOSPERPAGE - 1)); in diRead()
348 pageno = blkno >> sbi->l2nbperpage; in diRead()
350 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diRead()
355 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diRead()
358 rel_inode += block_offset << sbi->l2niperblk; in diRead()
361 rel_inode -= inodes_left; in diRead()
366 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diRead()
369 return -EIO; in diRead()
373 dp = (struct dinode *) mp->data; in diRead()
376 if (ip->i_ino != le32_to_cpu(dp->di_number)) { in diRead()
377 jfs_error(ip->i_sb, "i_ino != di_number\n"); in diRead()
378 rc = -EIO; in diRead()
379 } else if (le32_to_cpu(dp->di_nlink) == 0) in diRead()
380 rc = -ESTALE; in diRead()
382 /* copy the disk inode to the in-memory inode */ in diRead()
383 rc = copy_from_dinode(dp, ip); in diRead()
388 JFS_IP(ip)->agstart = agstart; in diRead()
389 JFS_IP(ip)->active_ag = -1; in diRead()
391 return (rc); in diRead()
396 * NAME: diReadSpecial()
404 * inode map, since these inodes are at a fixed location
405 * and in some cases the aggregate inode map isn't initialized
409 * sb - filesystem superblock
410 * inum - aggregate inode number
411 * secondary - 1 if secondary aggregate inode table
414 * new inode - success
415 * NULL - i/o error.
432 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diReadSpecial()
433 JFS_IP(ip)->ipimap = sbi->ipaimap2; in diReadSpecial()
436 JFS_IP(ip)->ipimap = sbi->ipaimap; in diReadSpecial()
441 ip->i_ino = inum; in diReadSpecial()
446 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diReadSpecial()
454 dp = (struct dinode *) (mp->data); in diReadSpecial()
457 /* copy on-disk inode to in-memory inode */ in diReadSpecial()
468 ip->i_mapping->a_ops = &jfs_metapage_aops; in diReadSpecial()
469 mapping_set_gfp_mask(ip->i_mapping, GFP_NOFS); in diReadSpecial()
472 ip->i_flags |= S_NOQUOTA; in diReadSpecial()
474 if ((inum == FILESYSTEM_I) && (JFS_IP(ip)->ipimap == sbi->ipaimap)) { in diReadSpecial()
475 sbi->gengen = le32_to_cpu(dp->di_gengen); in diReadSpecial()
476 sbi->inostamp = le32_to_cpu(dp->di_inostamp); in diReadSpecial()
488 * NAME: diWriteSpecial()
493 * ip - special inode
494 * secondary - 1 if secondary aggregate inode table
501 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWriteSpecial()
504 ino_t inum = ip->i_ino; in diWriteSpecial()
508 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diWriteSpecial()
517 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diWriteSpecial()
524 dp = (struct dinode *) (mp->data); in diWriteSpecial()
527 /* copy on-disk inode to in-memory inode */ in diWriteSpecial()
529 memcpy(&dp->di_xtroot, &JFS_IP(ip)->i_xtroot, 288); in diWriteSpecial()
532 dp->di_gengen = cpu_to_le32(sbi->gengen); in diWriteSpecial()
539 * NAME: diFreeSpecial()
549 filemap_write_and_wait(ip->i_mapping); in diFreeSpecial()
550 truncate_inode_pages(ip->i_mapping, 0); in diFreeSpecial()
557 * NAME: diWrite()
559 * FUNCTION: write the on-disk inode portion of the in-memory inode
560 * to its corresponding on-disk inode.
573 * tid - transacation id
574 * ip - pointer to incore inode to be written to the inode extent.
577 * 0 - success
578 * -EIO - i/o error.
582 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWrite()
584 int rc = 0; in diWrite() local
602 ipimap = jfs_ip->ipimap; in diWrite()
604 ino = ip->i_ino & (INOSPERIAG - 1); in diWrite()
606 if (!addressPXD(&(jfs_ip->ixpxd)) || in diWrite()
607 (lengthPXD(&(jfs_ip->ixpxd)) != in diWrite()
608 JFS_IP(ipimap)->i_imap->im_nbperiext)) { in diWrite()
609 jfs_error(ip->i_sb, "ixpxd invalid\n"); in diWrite()
610 return -EIO; in diWrite()
617 blkno = INOPBLK(&(jfs_ip->ixpxd), ino, sbi->l2nbperpage); in diWrite()
619 rel_inode = (ino & (INOSPERPAGE - 1)); in diWrite()
620 pageno = blkno >> sbi->l2nbperpage; in diWrite()
622 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diWrite()
627 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diWrite()
630 rel_inode += block_offset << sbi->l2niperblk; in diWrite()
633 rel_inode -= inodes_left; in diWrite()
638 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diWrite()
640 return -EIO; in diWrite()
643 dp = (struct dinode *) mp->data; in diWrite()
646 dioffset = (ino & (INOSPERPAGE - 1)) << L2DISIZE; in diWrite()
649 * acquire transaction lock on the on-disk inode; in diWrite()
655 dilinelock = (struct linelock *) & ditlck->lock; in diWrite()
658 * copy btree root from in-memory inode to on-disk inode in diWrite()
660 * (tlock is taken from inline B+-tree root in in-memory in diWrite()
661 * inode when the B+-tree root is updated, which is pointed in diWrite()
662 * by jfs_ip->blid as well as being on tx tlock list) in diWrite()
665 * in in-memory inode, where txLog() will log from, and, in diWrite()
666 * for xtree root, txUpdateMap() will update map and reset in diWrite()
670 if (S_ISDIR(ip->i_mode) && (lid = jfs_ip->xtlid)) { in diWrite()
678 jfs_ip->xtlid = 0; in diWrite()
680 assert(tlck->type & tlckXTREE); in diWrite()
681 tlck->type |= tlckBTROOT; in diWrite()
682 tlck->mp = mp; in diWrite()
683 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
688 p = &jfs_ip->i_xtroot; in diWrite()
689 xp = (xtpage_t *) &dp->di_dirtable; in diWrite()
690 lv = ilinelock->lv; in diWrite()
691 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
692 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
693 lv->length << L2XTSLOTSIZE); in diWrite()
696 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
697 xad = &xp->xad[XTENTRYSTART]; in diWrite()
699 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
700 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
701 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
704 if ((lid = jfs_ip->blid) == 0) in diWrite()
706 jfs_ip->blid = 0; in diWrite()
709 type = tlck->type; in diWrite()
710 tlck->type |= tlckBTROOT; in diWrite()
711 tlck->mp = mp; in diWrite()
712 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
724 p = &jfs_ip->i_xtroot; in diWrite()
725 xp = &dp->di_xtroot; in diWrite()
726 lv = ilinelock->lv; in diWrite()
727 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
728 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
729 lv->length << L2XTSLOTSIZE); in diWrite()
732 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
733 xad = &xp->xad[XTENTRYSTART]; in diWrite()
735 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
736 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
737 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
748 p = (dtpage_t *) &jfs_ip->i_dtroot; in diWrite()
749 xp = (dtpage_t *) & dp->di_dtroot; in diWrite()
750 lv = ilinelock->lv; in diWrite()
751 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
752 memcpy(&xp->slot[lv->offset], &p->slot[lv->offset], in diWrite()
753 lv->length << L2DTSLOTSIZE); in diWrite()
761 * copy inline symlink from in-memory inode to on-disk inode in diWrite()
763 if (S_ISLNK(ip->i_mode) && ip->i_size < IDATASIZE) { in diWrite()
764 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
765 lv->offset = (dioffset + 2 * 128) >> L2INODESLOTSIZE; in diWrite()
766 lv->length = 2; in diWrite()
767 memcpy(&dp->di_fastsymlink, jfs_ip->i_inline, IDATASIZE); in diWrite()
768 dilinelock->index++; in diWrite()
771 * copy inline data from in-memory inode to on-disk inode: in diWrite()
775 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
776 lv->offset = (dioffset + 3 * 128) >> L2INODESLOTSIZE; in diWrite()
777 lv->length = 1; in diWrite()
778 memcpy(&dp->di_inlineea, jfs_ip->i_inline_ea, INODESLOTSIZE); in diWrite()
779 dilinelock->index++; in diWrite()
787 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
788 lv->offset = dioffset >> L2INODESLOTSIZE; in diWrite()
791 lv->length = 2; in diWrite()
792 memcpy(&dp->di_dirtable, &jfs_ip->i_dirtable, 96); in diWrite()
794 lv->length = 1; in diWrite()
795 dilinelock->index++; in diWrite()
797 /* release the buffer holding the updated on-disk inode. in diWrite()
802 return (rc); in diWrite()
807 * NAME: diFree(ip)
809 * FUNCTION: free a specified inode from the inode working map
830 * the inode map's free iag list.
838 * ip - inode to be freed.
841 * 0 - success
842 * -EIO - i/o error.
846 int rc; in diFree() local
847 ino_t inum = ip->i_ino; in diFree()
853 struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; in diFree()
854 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diFree()
872 * the map. in diFree()
874 if (iagno >= imap->im_nextiag) { in diFree()
877 jfs_error(ip->i_sb, "inum = %d, iagno = %d, nextiag = %d\n", in diFree()
878 (uint) inum, iagno, imap->im_nextiag); in diFree()
879 return -EIO; in diFree()
884 agno = BLKTOAG(JFS_IP(ip)->agstart, JFS_SBI(ip->i_sb)); in diFree()
886 /* Lock the AG specific inode map information in diFree()
897 if ((rc = diIAGRead(imap, iagno, &mp))) { in diFree()
900 return (rc); in diFree()
902 iagp = (struct iag *) mp->data; in diFree()
907 ino = inum & (INOSPERIAG - 1); in diFree()
909 bitno = ino & (INOSPEREXT - 1); in diFree()
912 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diFree()
913 jfs_error(ip->i_sb, "wmap shows inode already free\n"); in diFree()
916 if (!addressPXD(&iagp->inoext[extno])) { in diFree()
920 jfs_error(ip->i_sb, "invalid inoext\n"); in diFree()
921 return -EIO; in diFree()
926 bitmap = le32_to_cpu(iagp->wmap[extno]) & ~mask; in diFree()
928 if (imap->im_agctl[agno].numfree > imap->im_agctl[agno].numinos) { in diFree()
932 jfs_error(ip->i_sb, "numfree > numinos\n"); in diFree()
933 return -EIO; in diFree()
940 imap->im_agctl[agno].numfree < 96 || in diFree()
941 (imap->im_agctl[agno].numfree < 288 && in diFree()
942 (((imap->im_agctl[agno].numfree * 100) / in diFree()
943 imap->im_agctl[agno].numinos) <= 25))) { in diFree()
948 if (iagp->nfreeinos == 0) { in diFree()
954 if ((fwd = imap->im_agctl[agno].inofree) >= 0) { in diFree()
958 if ((rc = diIAGRead(imap, fwd, &))) { in diFree()
962 return (rc); in diFree()
964 aiagp = (struct iag *) amp->data; in diFree()
968 aiagp->inofreeback = cpu_to_le32(iagno); in diFree()
976 iagp->inofreefwd = in diFree()
977 cpu_to_le32(imap->im_agctl[agno].inofree); in diFree()
978 iagp->inofreeback = cpu_to_le32(-1); in diFree()
979 imap->im_agctl[agno].inofree = iagno; in diFree()
983 /* update the free inode summary map for the extent if in diFree()
988 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diFree()
990 bitno = extno & (EXTSPERSUM - 1); in diFree()
991 iagp->inosmap[sword] &= in diFree()
997 iagp->wmap[extno] = cpu_to_le32(bitmap); in diFree()
1000 * map level. in diFree()
1002 le32_add_cpu(&iagp->nfreeinos, 1); in diFree()
1003 imap->im_agctl[agno].numfree += 1; in diFree()
1004 atomic_inc(&imap->im_numfree); in diFree()
1006 /* release the AG inode map lock in diFree()
1026 fwd = back = -1; in diFree()
1031 if (iagp->nfreeexts == 0) { in diFree()
1038 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diFree()
1039 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1041 aiagp = (struct iag *) amp->data; in diFree()
1047 * free list and placed on the inode map's free iag list. in diFree()
1049 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1055 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diFree()
1056 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1058 aiagp = (struct iag *) amp->data; in diFree()
1061 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diFree()
1062 if ((rc = diIAGRead(imap, back, &bmp))) in diFree()
1064 biagp = (struct iag *) bmp->data; in diFree()
1072 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1073 int inofreeback = le32_to_cpu(iagp->inofreeback); in diFree()
1074 int inofreefwd = le32_to_cpu(iagp->inofreefwd); in diFree()
1081 * from up above, since re-reading an iag (buffer) in diFree()
1087 ciagp = (struct iag *) amp->data; in diFree()
1089 ciagp = (struct iag *) bmp->data; in diFree()
1091 if ((rc = in diFree()
1094 ciagp = (struct iag *) cmp->data; in diFree()
1101 diagp = (struct iag *) amp->data; in diFree()
1103 diagp = (struct iag *) bmp->data; in diFree()
1105 if ((rc = in diFree()
1108 diagp = (struct iag *) dmp->data; in diFree()
1119 freepxd = iagp->inoext[extno]; in diFree()
1128 if (iagp->nfreeexts == 0) { in diFree()
1130 aiagp->extfreeback = cpu_to_le32(iagno); in diFree()
1132 iagp->extfreefwd = in diFree()
1133 cpu_to_le32(imap->im_agctl[agno].extfree); in diFree()
1134 iagp->extfreeback = cpu_to_le32(-1); in diFree()
1135 imap->im_agctl[agno].extfree = iagno; in diFree()
1138 * are now free and place it on the inode map iag free list. in diFree()
1140 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1142 aiagp->extfreeback = iagp->extfreeback; in diFree()
1145 biagp->extfreefwd = iagp->extfreefwd; in diFree()
1147 imap->im_agctl[agno].extfree = in diFree()
1148 le32_to_cpu(iagp->extfreefwd); in diFree()
1150 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diFree()
1153 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diFree()
1154 imap->im_freeiag = iagno; in diFree()
1162 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1163 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) in diFree()
1164 ciagp->inofreeback = iagp->inofreeback; in diFree()
1166 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) in diFree()
1167 diagp->inofreefwd = iagp->inofreefwd; in diFree()
1169 imap->im_agctl[agno].inofree = in diFree()
1170 le32_to_cpu(iagp->inofreefwd); in diFree()
1172 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diFree()
1175 /* update the inode extent address and working map in diFree()
1177 * the permanent map should have been updated already in diFree()
1180 if (iagp->pmap[extno] != 0) { in diFree()
1181 jfs_error(ip->i_sb, "the pmap does not show inode free\n"); in diFree()
1183 iagp->wmap[extno] = 0; in diFree()
1184 PXDlength(&iagp->inoext[extno], 0); in diFree()
1185 PXDaddress(&iagp->inoext[extno], 0); in diFree()
1189 * the inode summary map is marked to indicate no inodes in diFree()
1193 bitno = extno & (EXTSPERSUM - 1); in diFree()
1195 iagp->inosmap[sword] |= cpu_to_le32(mask); in diFree()
1196 iagp->extsmap[sword] &= cpu_to_le32(~mask); in diFree()
1201 le32_add_cpu(&iagp->nfreeinos, -(INOSPEREXT - 1)); in diFree()
1202 le32_add_cpu(&iagp->nfreeexts, 1); in diFree()
1205 * at the ag and inode map level. in diFree()
1207 imap->im_agctl[agno].numfree -= (INOSPEREXT - 1); in diFree()
1208 imap->im_agctl[agno].numinos -= INOSPEREXT; in diFree()
1209 atomic_sub(INOSPEREXT - 1, &imap->im_numfree); in diFree()
1210 atomic_sub(INOSPEREXT, &imap->im_numinos); in diFree()
1222 * start transaction to update block allocation map in diFree()
1230 tid = txBegin(ipimap->i_sb, COMMIT_FORCE); in diFree()
1231 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1241 pxdlock = (struct pxd_lock *) & tlck->lock; in diFree()
1242 pxdlock->flag = mlckFREEPXD; in diFree()
1243 pxdlock->pxd = freepxd; in diFree()
1244 pxdlock->index = 1; in diFree()
1261 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diFree()
1264 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1266 /* unlock the AG inode map information */ in diFree()
1287 return (rc); in diFree()
1299 ip->i_ino = (iagno << L2INOSPERIAG) + ino; in diInitInode()
1300 jfs_ip->ixpxd = iagp->inoext[extno]; in diInitInode()
1301 jfs_ip->agstart = le64_to_cpu(iagp->agstart); in diInitInode()
1302 jfs_ip->active_ag = -1; in diInitInode()
1307 * NAME: diAlloc(pip,dir,ip)
1309 * FUNCTION: allocate a disk inode from the inode working map
1313 * pip - pointer to incore inode for the parent inode.
1314 * dir - 'true' if the new disk inode is for a directory.
1315 * ip - pointer to a new inode
1318 * 0 - success.
1319 * -ENOSPC - insufficient disk resources.
1320 * -EIO - i/o error.
1324 int rc, ino, iagno, addext, extno, bitno, sword; in diAlloc() local
1333 /* get the pointers to the inode map inode and the in diAlloc()
1336 ipimap = JFS_SBI(pip->i_sb)->ipimap; in diAlloc()
1337 imap = JFS_IP(ipimap)->i_imap; in diAlloc()
1338 JFS_IP(ip)->ipimap = ipimap; in diAlloc()
1339 JFS_IP(ip)->fileset = FILESYSTEM_I; in diAlloc()
1345 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1354 * hint. (we use a left-to-right policy to attempt to avoid in diAlloc()
1360 agno = BLKTOAG(JFS_IP(pip)->agstart, JFS_SBI(pip->i_sb)); in diAlloc()
1361 dn_numag = JFS_SBI(pip->i_sb)->bmap->db_numag; in diAlloc()
1363 return -EIO; in diAlloc()
1365 if (atomic_read(&JFS_SBI(pip->i_sb)->bmap->db_active[agno])) { in diAlloc()
1371 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1376 inum = pip->i_ino + 1; in diAlloc()
1377 ino = inum & (INOSPERIAG - 1); in diAlloc()
1381 inum = pip->i_ino; in diAlloc()
1383 /* lock the AG inode map information */ in diAlloc()
1391 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAlloc()
1394 return (rc); in diAlloc()
1396 iagp = (struct iag *) mp->data; in diAlloc()
1402 addext = (imap->im_agctl[agno].numfree < 32 && iagp->nfreeexts); in diAlloc()
1410 if (iagp->nfreeinos || addext) { in diAlloc()
1418 if (addressPXD(&iagp->inoext[extno])) { in diAlloc()
1419 bitno = ino & (INOSPEREXT - 1); in diAlloc()
1421 diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1429 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1431 if (rc) { in diAlloc()
1432 assert(rc == -EIO); in diAlloc()
1446 return (rc); in diAlloc()
1452 EXTSPERIAG - 1) ? 0 : extno + 1; in diAlloc()
1464 * here, so determine the starting summary map position in diAlloc()
1468 * map that represent extents prior to the extent containing in diAlloc()
1471 bitno = extno & (EXTSPERSUM - 1); in diAlloc()
1476 * summary map. in diAlloc()
1478 mask = (bitno == 0) ? 0 : (ONES << (EXTSPERSUM - bitno)); in diAlloc()
1479 inosmap = le32_to_cpu(iagp->inosmap[sword]) | mask; in diAlloc()
1480 extsmap = le32_to_cpu(iagp->extsmap[sword]) | mask; in diAlloc()
1487 * map describes an extent with free inodes. in diAlloc()
1496 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1502 jfs_error(ip->i_sb, in diAlloc()
1504 return -EIO; in diAlloc()
1509 * map. in diAlloc()
1512 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1514 if (rc) in diAlloc()
1515 assert(rc == -EIO); in diAlloc()
1529 return (rc); in diAlloc()
1535 * extents summary map describes a free extent. in diAlloc()
1546 if ((rc = diNewExt(imap, iagp, extno))) { in diAlloc()
1551 if (rc == -ENOSPC) in diAlloc()
1554 assert(rc == -EIO); in diAlloc()
1569 return (rc); in diAlloc()
1572 /* move on to the next set of summary map words. in diAlloc()
1574 sword = (sword == SMAPSZ - 1) ? 0 : sword + 1; in diAlloc()
1575 inosmap = le32_to_cpu(iagp->inosmap[sword]); in diAlloc()
1576 extsmap = le32_to_cpu(iagp->extsmap[sword]); in diAlloc()
1589 rc = diAllocAG(imap, agno, dir, ip); in diAlloc()
1593 if (rc != -ENOSPC) in diAlloc()
1594 return (rc); in diAlloc()
1604 * NAME: diAllocAG(imap,agno,dir,ip)
1620 * imap - pointer to inode map control structure.
1621 * agno - allocation group to allocate from.
1622 * dir - 'true' if the new disk inode is for a directory.
1623 * ip - pointer to the new inode to be filled in on successful return
1628 * 0 - success.
1629 * -ENOSPC - insufficient disk resources.
1630 * -EIO - i/o error.
1635 int rc, addext, numfree, numinos; in diAllocAG() local
1640 numfree = imap->im_agctl[agno].numfree; in diAllocAG()
1641 numinos = imap->im_agctl[agno].numinos; in diAllocAG()
1644 jfs_error(ip->i_sb, "numfree > numinos\n"); in diAllocAG()
1645 return -EIO; in diAllocAG()
1668 if ((rc = diAllocExt(imap, agno, ip)) != -ENOSPC) in diAllocAG()
1669 return (rc); in diAllocAG()
1680 * NAME: diAllocAny(imap,agno,dir,iap)
1690 * imap - pointer to inode map control structure.
1691 * agno - primary allocation group (to avoid).
1692 * dir - 'true' if the new disk inode is for a directory.
1693 * ip - pointer to a new inode to be filled in on successful return
1698 * 0 - success.
1699 * -ENOSPC - insufficient disk resources.
1700 * -EIO - i/o error.
1705 int ag, rc; in diAllocAny() local
1706 int maxag = JFS_SBI(imap->im_ipimap->i_sb)->bmap->db_maxag; in diAllocAny()
1715 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1719 if (rc != -ENOSPC) in diAllocAny()
1720 return (rc); in diAllocAny()
1728 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1732 if (rc != -ENOSPC) in diAllocAny()
1733 return (rc); in diAllocAny()
1738 return -ENOSPC; in diAllocAny()
1743 * NAME: diAllocIno(imap,agno,ip)
1750 * the iag's free inode summary map to find the leftmost
1756 * imap - pointer to inode map control structure.
1757 * agno - allocation group.
1758 * ip - pointer to new inode to be filled in on successful return
1763 * 0 - success.
1764 * -ENOSPC - insufficient disk resources.
1765 * -EIO - i/o error.
1769 int iagno, ino, rc, rem, extno, sword; in diAllocIno() local
1775 if ((iagno = imap->im_agctl[agno].inofree) < 0) in diAllocIno()
1776 return -ENOSPC; in diAllocIno()
1779 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocIno()
1783 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocIno()
1784 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1785 return (rc); in diAllocIno()
1787 iagp = (struct iag *) mp->data; in diAllocIno()
1792 if (!iagp->nfreeinos) { in diAllocIno()
1793 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1795 jfs_error(ip->i_sb, "nfreeinos = 0, but iag on freelist\n"); in diAllocIno()
1796 return -EIO; in diAllocIno()
1799 /* scan the free inode summary map to find an extent in diAllocIno()
1804 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1806 jfs_error(ip->i_sb, in diAllocIno()
1807 "free inode not found in summary map\n"); in diAllocIno()
1808 return -EIO; in diAllocIno()
1811 if (~iagp->inosmap[sword]) in diAllocIno()
1818 rem = diFindFree(le32_to_cpu(iagp->inosmap[sword]), 0); in diAllocIno()
1820 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1822 jfs_error(ip->i_sb, "no free extent found\n"); in diAllocIno()
1823 return -EIO; in diAllocIno()
1829 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), 0); in diAllocIno()
1831 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1833 jfs_error(ip->i_sb, "free inode not found\n"); in diAllocIno()
1834 return -EIO; in diAllocIno()
1843 rc = diAllocBit(imap, iagp, ino); in diAllocIno()
1844 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1845 if (rc) { in diAllocIno()
1847 return (rc); in diAllocIno()
1860 * NAME: diAllocExt(imap,agno,ip)
1873 * once an iag has been selected, the free extent summary map
1880 * imap - pointer to inode map control structure.
1881 * agno - allocation group number.
1882 * ip - pointer to new inode to be filled in on successful return
1887 * 0 - success.
1888 * -ENOSPC - insufficient disk resources.
1889 * -EIO - i/o error.
1893 int rem, iagno, sword, extno, rc; in diAllocExt() local
1900 if ((iagno = imap->im_agctl[agno].extfree) < 0) { in diAllocExt()
1904 if ((rc = diNewIAG(imap, &iagno, agno, &mp))) { in diAllocExt()
1905 return (rc); in diAllocExt()
1907 iagp = (struct iag *) mp->data; in diAllocExt()
1911 iagp->agstart = in diAllocExt()
1912 cpu_to_le64(AGTOBLK(agno, imap->im_ipimap)); in diAllocExt()
1916 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocExt()
1917 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocExt()
1918 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1919 jfs_error(ip->i_sb, "error reading iag\n"); in diAllocExt()
1920 return rc; in diAllocExt()
1922 iagp = (struct iag *) mp->data; in diAllocExt()
1925 /* using the free extent summary map, find a free extent. in diAllocExt()
1930 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1931 jfs_error(ip->i_sb, "free ext summary map not found\n"); in diAllocExt()
1932 return -EIO; in diAllocExt()
1934 if (~iagp->extsmap[sword]) in diAllocExt()
1940 rem = diFindFree(le32_to_cpu(iagp->extsmap[sword]), 0); in diAllocExt()
1943 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1944 jfs_error(ip->i_sb, "free extent not found\n"); in diAllocExt()
1945 return -EIO; in diAllocExt()
1951 rc = diNewExt(imap, iagp, extno); in diAllocExt()
1952 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1953 if (rc) { in diAllocExt()
1955 * place it back on the inode map's iag free list, and in diAllocExt()
1958 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diAllocExt()
1960 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diAllocExt()
1961 imap->im_freeiag = iagno; in diAllocExt()
1965 return (rc); in diAllocExt()
1979 * NAME: diAllocBit(imap,iagp,ino)
1999 * imap - pointer to inode map control structure.
2000 * iagp - pointer to iag.
2001 * ino - inode number to be allocated within the iag.
2004 * 0 - success.
2005 * -ENOSPC - insufficient disk resources.
2006 * -EIO - i/o error.
2010 int extno, bitno, agno, sword, rc; in diAllocBit() local
2020 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2021 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) { in diAllocBit()
2022 if ((rc = in diAllocBit()
2023 diIAGRead(imap, le32_to_cpu(iagp->inofreefwd), in diAllocBit()
2025 return (rc); in diAllocBit()
2026 aiagp = (struct iag *) amp->data; in diAllocBit()
2029 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) { in diAllocBit()
2030 if ((rc = in diAllocBit()
2032 le32_to_cpu(iagp->inofreeback), in diAllocBit()
2036 return (rc); in diAllocBit()
2038 biagp = (struct iag *) bmp->data; in diAllocBit()
2045 agno = BLKTOAG(le64_to_cpu(iagp->agstart), JFS_SBI(imap->im_ipimap->i_sb)); in diAllocBit()
2047 bitno = ino & (INOSPEREXT - 1); in diAllocBit()
2049 /* compute the mask for setting the map. in diAllocBit()
2055 if (((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) || in diAllocBit()
2056 ((le32_to_cpu(iagp->wmap[extno]) & mask) != 0) || in diAllocBit()
2057 (addressPXD(&iagp->inoext[extno]) == 0)) { in diAllocBit()
2063 jfs_error(imap->im_ipimap->i_sb, "iag inconsistent\n"); in diAllocBit()
2064 return -EIO; in diAllocBit()
2067 /* mark the inode as allocated in the working map. in diAllocBit()
2069 iagp->wmap[extno] |= cpu_to_le32(mask); in diAllocBit()
2073 * map to reflect this. in diAllocBit()
2075 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diAllocBit()
2077 bitno = extno & (EXTSPERSUM - 1); in diAllocBit()
2078 iagp->inosmap[sword] |= cpu_to_le32(HIGHORDER >> bitno); in diAllocBit()
2084 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2086 aiagp->inofreeback = iagp->inofreeback; in diAllocBit()
2091 biagp->inofreefwd = iagp->inofreefwd; in diAllocBit()
2094 imap->im_agctl[agno].inofree = in diAllocBit()
2095 le32_to_cpu(iagp->inofreefwd); in diAllocBit()
2097 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diAllocBit()
2101 * map levels. in diAllocBit()
2103 le32_add_cpu(&iagp->nfreeinos, -1); in diAllocBit()
2104 imap->im_agctl[agno].numfree -= 1; in diAllocBit()
2105 atomic_dec(&imap->im_numfree); in diAllocBit()
2112 * NAME: diNewExt(imap,iagp,extno)
2145 * imap - pointer to inode map control structure.
2146 * iagp - pointer to iag.
2147 * extno - extent number.
2150 * 0 - success.
2151 * -ENOSPC - insufficient disk resources.
2152 * -EIO - i/o error.
2156 int agno, iagno, fwd, back, freei = 0, sword, rc; in diNewExt() local
2169 if (!iagp->nfreeexts) { in diNewExt()
2170 jfs_error(imap->im_ipimap->i_sb, "no free extents\n"); in diNewExt()
2171 return -EIO; in diNewExt()
2174 /* get the inode map inode. in diNewExt()
2176 ipimap = imap->im_ipimap; in diNewExt()
2177 sbi = JFS_SBI(ipimap->i_sb); in diNewExt()
2183 agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi); in diNewExt()
2185 return -EIO; in diNewExt()
2187 iagno = le32_to_cpu(iagp->iagnum); in diNewExt()
2194 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2195 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diNewExt()
2196 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2197 return (rc); in diNewExt()
2198 aiagp = (struct iag *) amp->data; in diNewExt()
2201 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diNewExt()
2202 if ((rc = diIAGRead(imap, back, &bmp))) in diNewExt()
2204 biagp = (struct iag *) bmp->data; in diNewExt()
2213 fwd = back = -1; in diNewExt()
2214 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2215 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diNewExt()
2216 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2218 aiagp = (struct iag *) amp->data; in diNewExt()
2230 if (iagp->nfreeinos == 0) { in diNewExt()
2231 freei = imap->im_agctl[agno].inofree; in diNewExt()
2239 if ((rc = diIAGRead(imap, freei, &cmp))) in diNewExt()
2241 ciagp = (struct iag *) cmp->data; in diNewExt()
2244 jfs_error(imap->im_ipimap->i_sb, in diNewExt()
2246 rc = -EIO; in diNewExt()
2254 if ((extno == 0) || (addressPXD(&iagp->inoext[extno - 1]) == 0)) in diNewExt()
2255 hint = ((s64) agno << sbi->bmap->db_agl2size) - 1; in diNewExt()
2257 hint = addressPXD(&iagp->inoext[extno - 1]) + in diNewExt()
2258 lengthPXD(&iagp->inoext[extno - 1]) - 1; in diNewExt()
2260 if ((rc = dbAlloc(ipimap, hint, (s64) imap->im_nbperiext, &blkno))) in diNewExt()
2271 for (i = 0; i < imap->im_nbperiext; i += sbi->nbperpage) { in diNewExt()
2276 rc = -EIO; in diNewExt()
2279 dp = (struct dinode *) dmp->data; in diNewExt()
2285 dp->di_inostamp = cpu_to_le32(sbi->inostamp); in diNewExt()
2286 dp->di_number = cpu_to_le32(ino); in diNewExt()
2287 dp->di_fileset = cpu_to_le32(FILESYSTEM_I); in diNewExt()
2288 dp->di_mode = 0; in diNewExt()
2289 dp->di_nlink = 0; in diNewExt()
2290 PXDaddress(&(dp->di_ixpxd), blkno); in diNewExt()
2291 PXDlength(&(dp->di_ixpxd), imap->im_nbperiext); in diNewExt()
2299 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2301 aiagp->extfreeback = iagp->extfreeback; in diNewExt()
2304 biagp->extfreefwd = iagp->extfreefwd; in diNewExt()
2306 imap->im_agctl[agno].extfree = in diNewExt()
2307 le32_to_cpu(iagp->extfreefwd); in diNewExt()
2309 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2314 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2316 aiagp->extfreeback = cpu_to_le32(iagno); in diNewExt()
2318 iagp->extfreefwd = cpu_to_le32(fwd); in diNewExt()
2319 iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2320 imap->im_agctl[agno].extfree = iagno; in diNewExt()
2327 if (iagp->nfreeinos == 0) { in diNewExt()
2329 ciagp->inofreeback = cpu_to_le32(iagno); in diNewExt()
2331 iagp->inofreefwd = in diNewExt()
2332 cpu_to_le32(imap->im_agctl[agno].inofree); in diNewExt()
2333 iagp->inofreeback = cpu_to_le32(-1); in diNewExt()
2334 imap->im_agctl[agno].inofree = iagno; in diNewExt()
2338 PXDlength(&iagp->inoext[extno], imap->im_nbperiext); in diNewExt()
2339 PXDaddress(&iagp->inoext[extno], blkno); in diNewExt()
2341 /* initialize the working and persistent map of the extent. in diNewExt()
2342 * the working map will be initialized such that in diNewExt()
2345 iagp->wmap[extno] = cpu_to_le32(HIGHORDER); in diNewExt()
2346 iagp->pmap[extno] = 0; in diNewExt()
2353 mask = HIGHORDER >> (extno & (EXTSPERSUM - 1)); in diNewExt()
2354 iagp->extsmap[sword] |= cpu_to_le32(mask); in diNewExt()
2355 iagp->inosmap[sword] &= cpu_to_le32(~mask); in diNewExt()
2360 le32_add_cpu(&iagp->nfreeinos, (INOSPEREXT - 1)); in diNewExt()
2361 le32_add_cpu(&iagp->nfreeexts, -1); in diNewExt()
2365 imap->im_agctl[agno].numfree += (INOSPEREXT - 1); in diNewExt()
2366 imap->im_agctl[agno].numinos += INOSPEREXT; in diNewExt()
2368 /* update the free and backed inode counts for the inode map. in diNewExt()
2370 atomic_add(INOSPEREXT - 1, &imap->im_numfree); in diNewExt()
2371 atomic_add(INOSPEREXT, &imap->im_numinos); in diNewExt()
2395 return (rc); in diNewExt()
2400 * NAME: diNewIAG(imap,iagnop,agno)
2404 * first tries to allocate the iag from the inode map
2408 * if the inode map's iag free list is empty, the inode map
2413 * imap - pointer to inode map control structure.
2414 * iagnop - pointer to an iag number set with the number of the
2416 * agno - allocation group number.
2417 * bpp - Buffer pointer to be filled in with new IAG's buffer
2420 * 0 - success.
2421 * -ENOSPC - insufficient disk resources.
2422 * -EIO - i/o error.
2426 * write lock on the map is held inside;
2427 * read lock on the map is held on successful completion;
2434 * . at start of logredo(): init in-memory imap with one additional iag page;
2435 * . at end of logredo(): re-read imap inode to determine
2441 int rc; in diNewIAG() local
2453 /* pick up pointers to the inode map and mount inodes */ in diNewIAG()
2454 ipimap = imap->im_ipimap; in diNewIAG()
2455 sb = ipimap->i_sb; in diNewIAG()
2461 /* if there are any iags on the inode map free iag list, in diNewIAG()
2464 if (imap->im_freeiag >= 0) { in diNewIAG()
2466 iagno = imap->im_freeiag; in diNewIAG()
2469 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2471 /* no free iags. the inode map will have to be extented in diNewIAG()
2475 /* acquire inode map lock */ in diNewIAG()
2478 if (ipimap->i_size >> L2PSIZE != imap->im_nextiag + 1) { in diNewIAG()
2481 jfs_error(imap->im_ipimap->i_sb, in diNewIAG()
2482 "ipimap->i_size is wrong\n"); in diNewIAG()
2483 return -EIO; in diNewIAG()
2488 iagno = imap->im_nextiag; in diNewIAG()
2493 if (iagno > (MAXIAGS - 1)) { in diNewIAG()
2494 /* release the inode map lock */ in diNewIAG()
2497 rc = -ENOSPC; in diNewIAG()
2505 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2508 xlen = sbi->nbperpage; in diNewIAG()
2509 if ((rc = dbAlloc(ipimap, 0, (s64) xlen, &xaddr))) { in diNewIAG()
2510 /* release the inode map lock */ in diNewIAG()
2517 * start transaction of update of the inode map in diNewIAG()
2521 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2523 /* update the inode map addressing structure to point to it */ in diNewIAG()
2524 if ((rc = in diNewIAG()
2527 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2529 * not successfully added to the inode map in diNewIAG()
2533 /* release the inode map lock */ in diNewIAG()
2539 /* update the inode map's inode to reflect the extension */ in diNewIAG()
2540 ipimap->i_size += PSIZE; in diNewIAG()
2550 xtTruncate(tid, ipimap, ipimap->i_size - PSIZE, in diNewIAG()
2555 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2557 /* release the inode map lock */ in diNewIAG()
2560 rc = -EIO; in diNewIAG()
2563 iagp = (struct iag *) mp->data; in diNewIAG()
2567 iagp->iagnum = cpu_to_le32(iagno); in diNewIAG()
2568 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diNewIAG()
2569 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewIAG()
2570 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2571 iagp->nfreeinos = 0; in diNewIAG()
2572 iagp->nfreeexts = cpu_to_le32(EXTSPERIAG); in diNewIAG()
2574 /* initialize the free inode summary map (free extent in diNewIAG()
2575 * summary map initialization handled by bzero). in diNewIAG()
2578 iagp->inosmap[i] = cpu_to_le32(ONES); in diNewIAG()
2591 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diNewIAG()
2594 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2599 imap->im_nextiag += 1; in diNewIAG()
2604 imap->im_freeiag = iagno; in diNewIAG()
2611 /* release the inode map lock */ in diNewIAG()
2615 /* obtain read lock on map */ in diNewIAG()
2619 if ((rc = diIAGRead(imap, iagno, &mp))) { in diNewIAG()
2621 rc = -EIO; in diNewIAG()
2624 iagp = (struct iag *) mp->data; in diNewIAG()
2627 imap->im_freeiag = le32_to_cpu(iagp->iagfree); in diNewIAG()
2628 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2638 return (rc); in diNewIAG()
2642 * NAME: diIAGRead()
2645 * or aggregate inode map.
2648 * imap - pointer to inode map control structure.
2649 * iagno - iag number.
2650 * bpp - point to buffer pointer to be filled in on successful
2659 * 0 - success.
2660 * -EIO - i/o error.
2664 struct inode *ipimap = imap->im_ipimap; in diIAGRead()
2668 blkno = IAGTOLBLK(iagno, JFS_SBI(ipimap->i_sb)->l2nbperpage); in diIAGRead()
2673 return -EIO; in diIAGRead()
2680 * NAME: diFindFree()
2686 * word - word to be examined.
2687 * start - starting bit position.
2707 * NAME: diUpdatePMap()
2709 * FUNCTION: Update the persistent map in an IAG for the allocation or
2712 * PRE CONDITIONS: Working map has already been updated for allocate.
2715 * ipimap - Incore inode map inode
2716 * inum - Number of inode to mark in permanent map
2717 * is_free - If 'true' indicates inode should be marked freed, otherwise
2727 int rc; in diUpdatePMap() local
2737 imap = JFS_IP(ipimap)->i_imap; in diUpdatePMap()
2740 /* make sure that the iag is contained within the map */ in diUpdatePMap()
2741 if (iagno >= imap->im_nextiag) { in diUpdatePMap()
2742 jfs_error(ipimap->i_sb, "the iag is outside the map\n"); in diUpdatePMap()
2743 return -EIO; in diUpdatePMap()
2747 rc = diIAGRead(imap, iagno, &mp); in diUpdatePMap()
2749 if (rc) in diUpdatePMap()
2750 return (rc); in diUpdatePMap()
2752 iagp = (struct iag *) mp->data; in diUpdatePMap()
2756 ino = inum & (INOSPERIAG - 1); in diUpdatePMap()
2758 bitno = ino & (INOSPEREXT - 1); in diUpdatePMap()
2761 * mark the inode free in persistent map: in diUpdatePMap()
2765 * map and in persistent map; in diUpdatePMap()
2766 * the inode will be freed from working map at the release in diUpdatePMap()
2769 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2770 jfs_error(ipimap->i_sb, in diUpdatePMap()
2774 if (!(le32_to_cpu(iagp->pmap[extno]) & mask)) { in diUpdatePMap()
2775 jfs_error(ipimap->i_sb, in diUpdatePMap()
2780 iagp->pmap[extno] &= cpu_to_le32(~mask); in diUpdatePMap()
2783 * mark the inode allocated in persistent map: in diUpdatePMap()
2786 /* The inode should be already allocated in the working map in diUpdatePMap()
2787 * and should be free in persistent map; in diUpdatePMap()
2789 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2791 jfs_error(ipimap->i_sb, in diUpdatePMap()
2792 "the inode is not allocated in the working map\n"); in diUpdatePMap()
2793 return -EIO; in diUpdatePMap()
2795 if ((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) { in diUpdatePMap()
2797 jfs_error(ipimap->i_sb, in diUpdatePMap()
2798 "the inode is not free in the persistent map\n"); in diUpdatePMap()
2799 return -EIO; in diUpdatePMap()
2802 iagp->pmap[extno] |= cpu_to_le32(mask); in diUpdatePMap()
2807 lsn = tblk->lsn; in diUpdatePMap()
2808 log = JFS_SBI(tblk->sb)->log; in diUpdatePMap()
2810 if (mp->lsn != 0) { in diUpdatePMap()
2813 logdiff(diffp, mp->lsn, log); in diUpdatePMap()
2815 mp->lsn = lsn; in diUpdatePMap()
2817 list_move(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2820 assert(mp->clsn); in diUpdatePMap()
2821 logdiff(difft, tblk->clsn, log); in diUpdatePMap()
2822 logdiff(diffp, mp->clsn, log); in diUpdatePMap()
2824 mp->clsn = tblk->clsn; in diUpdatePMap()
2826 mp->log = log; in diUpdatePMap()
2827 mp->lsn = lsn; in diUpdatePMap()
2829 log->count++; in diUpdatePMap()
2830 list_add(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2831 mp->clsn = tblk->clsn; in diUpdatePMap()
2848 int rc, rcx = 0; in diExtendFS() local
2849 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diExtendFS()
2851 struct bmap *mp = JFS_SBI(ipbmap->i_sb)->bmap; in diExtendFS()
2858 imap->im_nextiag, atomic_read(&imap->im_numinos), in diExtendFS()
2859 atomic_read(&imap->im_numfree)); in diExtendFS()
2865 * i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn; in diExtendFS()
2871 imap->im_agctl[i].inofree = -1; in diExtendFS()
2872 imap->im_agctl[i].extfree = -1; in diExtendFS()
2873 imap->im_agctl[i].numinos = 0; /* number of backed inodes */ in diExtendFS()
2874 imap->im_agctl[i].numfree = 0; /* number of free backed inodes */ in diExtendFS()
2878 * process each iag page of the map. in diExtendFS()
2882 for (i = 0; i < imap->im_nextiag; i++) { in diExtendFS()
2883 if ((rc = diIAGRead(imap, i, &bp))) { in diExtendFS()
2884 rcx = rc; in diExtendFS()
2887 iagp = (struct iag *) bp->data; in diExtendFS()
2888 if (le32_to_cpu(iagp->iagnum) != i) { in diExtendFS()
2890 jfs_error(ipimap->i_sb, "unexpected value of iagnum\n"); in diExtendFS()
2891 return -EIO; in diExtendFS()
2895 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diExtendFS()
2900 agstart = le64_to_cpu(iagp->agstart); in diExtendFS()
2901 n = agstart >> mp->db_agl2size; in diExtendFS()
2902 iagp->agstart = cpu_to_le64((s64)n << mp->db_agl2size); in diExtendFS()
2905 numinos = (EXTSPERIAG - le32_to_cpu(iagp->nfreeexts)) in diExtendFS()
2909 imap->im_agctl[n].numinos += numinos; in diExtendFS()
2914 if ((int) le32_to_cpu(iagp->nfreeinos) > 0) { in diExtendFS()
2915 if ((head = imap->im_agctl[n].inofree) == -1) { in diExtendFS()
2916 iagp->inofreefwd = cpu_to_le32(-1); in diExtendFS()
2917 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2919 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2920 rcx = rc; in diExtendFS()
2923 hiagp = (struct iag *) hbp->data; in diExtendFS()
2924 hiagp->inofreeback = iagp->iagnum; in diExtendFS()
2925 iagp->inofreefwd = cpu_to_le32(head); in diExtendFS()
2926 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2930 imap->im_agctl[n].inofree = in diExtendFS()
2931 le32_to_cpu(iagp->iagnum); in diExtendFS()
2934 imap->im_agctl[n].numfree += in diExtendFS()
2935 le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2936 xnumfree += le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2940 if (le32_to_cpu(iagp->nfreeexts) > 0) { in diExtendFS()
2941 if ((head = imap->im_agctl[n].extfree) == -1) { in diExtendFS()
2942 iagp->extfreefwd = cpu_to_le32(-1); in diExtendFS()
2943 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2945 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2946 rcx = rc; in diExtendFS()
2949 hiagp = (struct iag *) hbp->data; in diExtendFS()
2950 hiagp->extfreeback = iagp->iagnum; in diExtendFS()
2951 iagp->extfreefwd = cpu_to_le32(head); in diExtendFS()
2952 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2956 imap->im_agctl[n].extfree = in diExtendFS()
2957 le32_to_cpu(iagp->iagnum); in diExtendFS()
2964 if (xnuminos != atomic_read(&imap->im_numinos) || in diExtendFS()
2965 xnumfree != atomic_read(&imap->im_numfree)) { in diExtendFS()
2966 jfs_error(ipimap->i_sb, "numinos or numfree incorrect\n"); in diExtendFS()
2967 return -EIO; in diExtendFS()
2990 if (JFS_SBI(sb)->mntflag & JFS_BAD_SAIT) /* s_flag */ in duplicateIXtree()
2994 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
2997 j_sb = (struct jfs_superblock *)bh->b_data; in duplicateIXtree()
2998 j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT); in duplicateIXtree()
3008 /* update the inode map addressing structure to point to it */ in duplicateIXtree()
3010 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
3015 /* update the inode map's inode to reflect the extension */ in duplicateIXtree()
3016 ip->i_size += PSIZE; in duplicateIXtree()
3025 * NAME: copy_from_dinode()
3027 * FUNCTION: Copies inode info from disk inode to in-memory inode
3030 * 0 - success
3031 * -ENOMEM - insufficient memory
3036 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_from_dinode()
3038 jfs_ip->fileset = le32_to_cpu(dip->di_fileset); in copy_from_dinode()
3039 jfs_ip->mode2 = le32_to_cpu(dip->di_mode); in copy_from_dinode()
3042 ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; in copy_from_dinode()
3043 if (sbi->umask != -1) { in copy_from_dinode()
3044 ip->i_mode = (ip->i_mode & ~0777) | (0777 & ~sbi->umask); in copy_from_dinode()
3046 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3047 if (ip->i_mode & 0400) in copy_from_dinode()
3048 ip->i_mode |= 0100; in copy_from_dinode()
3049 if (ip->i_mode & 0040) in copy_from_dinode()
3050 ip->i_mode |= 0010; in copy_from_dinode()
3051 if (ip->i_mode & 0004) in copy_from_dinode()
3052 ip->i_mode |= 0001; in copy_from_dinode()
3055 set_nlink(ip, le32_to_cpu(dip->di_nlink)); in copy_from_dinode()
3057 jfs_ip->saved_uid = make_kuid(&init_user_ns, le32_to_cpu(dip->di_uid)); in copy_from_dinode()
3058 if (!uid_valid(sbi->uid)) in copy_from_dinode()
3059 ip->i_uid = jfs_ip->saved_uid; in copy_from_dinode()
3061 ip->i_uid = sbi->uid; in copy_from_dinode()
3064 jfs_ip->saved_gid = make_kgid(&init_user_ns, le32_to_cpu(dip->di_gid)); in copy_from_dinode()
3065 if (!gid_valid(sbi->gid)) in copy_from_dinode()
3066 ip->i_gid = jfs_ip->saved_gid; in copy_from_dinode()
3068 ip->i_gid = sbi->gid; in copy_from_dinode()
3071 ip->i_size = le64_to_cpu(dip->di_size); in copy_from_dinode()
3072 ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec); in copy_from_dinode()
3073 ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec); in copy_from_dinode()
3074 ip->i_mtime.tv_sec = le32_to_cpu(dip->di_mtime.tv_sec); in copy_from_dinode()
3075 ip->i_mtime.tv_nsec = le32_to_cpu(dip->di_mtime.tv_nsec); in copy_from_dinode()
3076 ip->i_ctime.tv_sec = le32_to_cpu(dip->di_ctime.tv_sec); in copy_from_dinode()
3077 ip->i_ctime.tv_nsec = le32_to_cpu(dip->di_ctime.tv_nsec); in copy_from_dinode()
3078 ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks)); in copy_from_dinode()
3079 ip->i_generation = le32_to_cpu(dip->di_gen); in copy_from_dinode()
3081 jfs_ip->ixpxd = dip->di_ixpxd; /* in-memory pxd's are little-endian */ in copy_from_dinode()
3082 jfs_ip->acl = dip->di_acl; /* as are dxd's */ in copy_from_dinode()
3083 jfs_ip->ea = dip->di_ea; in copy_from_dinode()
3084 jfs_ip->next_index = le32_to_cpu(dip->di_next_index); in copy_from_dinode()
3085 jfs_ip->otime = le32_to_cpu(dip->di_otime.tv_sec); in copy_from_dinode()
3086 jfs_ip->acltype = le32_to_cpu(dip->di_acltype); in copy_from_dinode()
3088 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { in copy_from_dinode()
3089 jfs_ip->dev = le32_to_cpu(dip->di_rdev); in copy_from_dinode()
3090 ip->i_rdev = new_decode_dev(jfs_ip->dev); in copy_from_dinode()
3093 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3094 memcpy(&jfs_ip->i_dirtable, &dip->di_dirtable, 384); in copy_from_dinode()
3095 } else if (S_ISREG(ip->i_mode) || S_ISLNK(ip->i_mode)) { in copy_from_dinode()
3096 memcpy(&jfs_ip->i_xtroot, &dip->di_xtroot, 288); in copy_from_dinode()
3098 memcpy(&jfs_ip->i_inline_ea, &dip->di_inlineea, 128); in copy_from_dinode()
3100 /* Zero the in-memory-only stuff */ in copy_from_dinode()
3101 jfs_ip->cflag = 0; in copy_from_dinode()
3102 jfs_ip->btindex = 0; in copy_from_dinode()
3103 jfs_ip->btorder = 0; in copy_from_dinode()
3104 jfs_ip->bxflag = 0; in copy_from_dinode()
3105 jfs_ip->blid = 0; in copy_from_dinode()
3106 jfs_ip->atlhead = 0; in copy_from_dinode()
3107 jfs_ip->atltail = 0; in copy_from_dinode()
3108 jfs_ip->xtlid = 0; in copy_from_dinode()
3113 * NAME: copy_to_dinode()
3115 * FUNCTION: Copies inode info from in-memory inode to disk inode
3120 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_to_dinode()
3122 dip->di_fileset = cpu_to_le32(jfs_ip->fileset); in copy_to_dinode()
3123 dip->di_inostamp = cpu_to_le32(sbi->inostamp); in copy_to_dinode()
3124 dip->di_number = cpu_to_le32(ip->i_ino); in copy_to_dinode()
3125 dip->di_gen = cpu_to_le32(ip->i_generation); in copy_to_dinode()
3126 dip->di_size = cpu_to_le64(ip->i_size); in copy_to_dinode()
3127 dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); in copy_to_dinode()
3128 dip->di_nlink = cpu_to_le32(ip->i_nlink); in copy_to_dinode()
3129 if (!uid_valid(sbi->uid)) in copy_to_dinode()
3130 dip->di_uid = cpu_to_le32(i_uid_read(ip)); in copy_to_dinode()
3132 dip->di_uid =cpu_to_le32(from_kuid(&init_user_ns, in copy_to_dinode()
3133 jfs_ip->saved_uid)); in copy_to_dinode()
3134 if (!gid_valid(sbi->gid)) in copy_to_dinode()
3135 dip->di_gid = cpu_to_le32(i_gid_read(ip)); in copy_to_dinode()
3137 dip->di_gid = cpu_to_le32(from_kgid(&init_user_ns, in copy_to_dinode()
3138 jfs_ip->saved_gid)); in copy_to_dinode()
3143 if (sbi->umask == -1) in copy_to_dinode()
3144 dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | in copy_to_dinode()
3145 ip->i_mode); in copy_to_dinode()
3147 dip->di_mode = cpu_to_le32(jfs_ip->mode2); in copy_to_dinode()
3149 dip->di_atime.tv_sec = cpu_to_le32(ip->i_atime.tv_sec); in copy_to_dinode()
3150 dip->di_atime.tv_nsec = cpu_to_le32(ip->i_atime.tv_nsec); in copy_to_dinode()
3151 dip->di_ctime.tv_sec = cpu_to_le32(ip->i_ctime.tv_sec); in copy_to_dinode()
3152 dip->di_ctime.tv_nsec = cpu_to_le32(ip->i_ctime.tv_nsec); in copy_to_dinode()
3153 dip->di_mtime.tv_sec = cpu_to_le32(ip->i_mtime.tv_sec); in copy_to_dinode()
3154 dip->di_mtime.tv_nsec = cpu_to_le32(ip->i_mtime.tv_nsec); in copy_to_dinode()
3155 dip->di_ixpxd = jfs_ip->ixpxd; /* in-memory pxd's are little-endian */ in copy_to_dinode()
3156 dip->di_acl = jfs_ip->acl; /* as are dxd's */ in copy_to_dinode()
3157 dip->di_ea = jfs_ip->ea; in copy_to_dinode()
3158 dip->di_next_index = cpu_to_le32(jfs_ip->next_index); in copy_to_dinode()
3159 dip->di_otime.tv_sec = cpu_to_le32(jfs_ip->otime); in copy_to_dinode()
3160 dip->di_otime.tv_nsec = 0; in copy_to_dinode()
3161 dip->di_acltype = cpu_to_le32(jfs_ip->acltype); in copy_to_dinode()
3162 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) in copy_to_dinode()
3163 dip->di_rdev = cpu_to_le32(jfs_ip->dev); in copy_to_dinode()