Lines Matching +full:rc +full:- +full:map +full:- +full:name
2 * Copyright (C) International Business Machines Corp., 2000-2004
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * jfs_imap.c: inode allocation map manager
29 * There is also a inode lock for the inode map inode. A read lock needs to
30 * be taken whenever an IAG is read from the map or the global level
39 * The control page of the inode map is read into memory by diMount().
64 #define IAGFREE_LOCK_INIT(imap) mutex_init(&imap->im_freelock)
65 #define IAGFREE_LOCK(imap) mutex_lock(&imap->im_freelock)
66 #define IAGFREE_UNLOCK(imap) mutex_unlock(&imap->im_freelock)
69 #define AG_LOCK_INIT(imap,index) mutex_init(&(imap->im_aglock[index]))
70 #define AG_LOCK(imap,agno) mutex_lock(&imap->im_aglock[agno])
71 #define AG_UNLOCK(imap,agno) mutex_unlock(&imap->im_aglock[agno])
91 * NAME: diMount()
93 * FUNCTION: initialize the incore inode map control structures for
96 * the inode map's control structure (dinomap) is
100 * ipimap - pointer to inode map inode for the aggregate or fileset.
103 * 0 - success
104 * -ENOMEM - insufficient free virtual memory.
105 * -EIO - i/o error.
115 * allocate/initialize the in-memory inode map control structure in diMount()
117 /* allocate the in-memory inode map control structure. */ in diMount()
121 return -ENOMEM; in diMount()
124 /* read the on-disk inode map control structure. */ in diMount()
127 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diMount()
131 return -EIO; in diMount()
134 /* copy the on-disk version to the in-memory version. */ in diMount()
135 dinom_le = (struct dinomap_disk *) mp->data; in diMount()
136 imap->im_freeiag = le32_to_cpu(dinom_le->in_freeiag); in diMount()
137 imap->im_nextiag = le32_to_cpu(dinom_le->in_nextiag); in diMount()
138 atomic_set(&imap->im_numinos, le32_to_cpu(dinom_le->in_numinos)); in diMount()
139 atomic_set(&imap->im_numfree, le32_to_cpu(dinom_le->in_numfree)); in diMount()
140 imap->im_nbperiext = le32_to_cpu(dinom_le->in_nbperiext); in diMount()
141 imap->im_l2nbperiext = le32_to_cpu(dinom_le->in_l2nbperiext); in diMount()
143 imap->im_agctl[index].inofree = in diMount()
144 le32_to_cpu(dinom_le->in_agctl[index].inofree); in diMount()
145 imap->im_agctl[index].extfree = in diMount()
146 le32_to_cpu(dinom_le->in_agctl[index].extfree); in diMount()
147 imap->im_agctl[index].numinos = in diMount()
148 le32_to_cpu(dinom_le->in_agctl[index].numinos); in diMount()
149 imap->im_agctl[index].numfree = in diMount()
150 le32_to_cpu(dinom_le->in_agctl[index].numfree); in diMount()
157 * allocate/initialize inode allocation map locks in diMount()
167 /* bind the inode map inode and inode map control structure in diMount()
170 imap->im_ipimap = ipimap; in diMount()
171 JFS_IP(ipimap)->i_imap = imap; in diMount()
178 * NAME: diUnmount()
180 * FUNCTION: write to disk the incore inode map control structures for
184 * ipimap - pointer to inode map inode for the aggregate or fileset.
187 * 0 - success
188 * -ENOMEM - insufficient free virtual memory.
189 * -EIO - i/o error.
193 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diUnmount()
196 * update the on-disk inode map control structure in diUnmount()
205 truncate_inode_pages(ipimap->i_mapping, 0); in diUnmount()
208 * free in-memory control structure in diUnmount()
222 struct inomap *imp = JFS_IP(ipimap)->i_imap; in diSync()
229 /* read the on-disk inode map control structure */ in diSync()
231 IMAPBLKNO << JFS_SBI(ipimap->i_sb)->l2nbperpage, in diSync()
235 return -EIO; in diSync()
238 /* copy the in-memory version to the on-disk version */ in diSync()
239 dinom_le = (struct dinomap_disk *) mp->data; in diSync()
240 dinom_le->in_freeiag = cpu_to_le32(imp->im_freeiag); in diSync()
241 dinom_le->in_nextiag = cpu_to_le32(imp->im_nextiag); in diSync()
242 dinom_le->in_numinos = cpu_to_le32(atomic_read(&imp->im_numinos)); in diSync()
243 dinom_le->in_numfree = cpu_to_le32(atomic_read(&imp->im_numfree)); in diSync()
244 dinom_le->in_nbperiext = cpu_to_le32(imp->im_nbperiext); in diSync()
245 dinom_le->in_l2nbperiext = cpu_to_le32(imp->im_l2nbperiext); in diSync()
247 dinom_le->in_agctl[index].inofree = in diSync()
248 cpu_to_le32(imp->im_agctl[index].inofree); in diSync()
249 dinom_le->in_agctl[index].extfree = in diSync()
250 cpu_to_le32(imp->im_agctl[index].extfree); in diSync()
251 dinom_le->in_agctl[index].numinos = in diSync()
252 cpu_to_le32(imp->im_agctl[index].numinos); in diSync()
253 dinom_le->in_agctl[index].numfree = in diSync()
254 cpu_to_le32(imp->im_agctl[index].numfree); in diSync()
263 filemap_write_and_wait(ipimap->i_mapping); in diSync()
272 * NAME: diRead()
285 * identified by a NULL inode map inode pointer and are
296 * ip - pointer to incore inode to be initialized from disk.
299 * 0 - success
300 * -EIO - i/o error.
301 * -ENOMEM - insufficient memory
306 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diRead()
307 int iagno, ino, extno, rc; in diRead() local
319 jfs_info("diRead: ino = %ld", ip->i_ino); in diRead()
321 ipimap = sbi->ipimap; in diRead()
322 JFS_IP(ip)->ipimap = ipimap; in diRead()
325 iagno = INOTOIAG(ip->i_ino); in diRead()
328 imap = JFS_IP(ipimap)->i_imap; in diRead()
330 rc = diIAGRead(imap, iagno, &mp); in diRead()
332 if (rc) { in diRead()
333 jfs_err("diRead: diIAGRead returned %d", rc); in diRead()
334 return (rc); in diRead()
337 iagp = (struct iag *) mp->data; in diRead()
340 ino = ip->i_ino & (INOSPERIAG - 1); in diRead()
343 if ((lengthPXD(&iagp->inoext[extno]) != imap->im_nbperiext) || in diRead()
344 (addressPXD(&iagp->inoext[extno]) == 0)) { in diRead()
346 return -ESTALE; in diRead()
352 blkno = INOPBLK(&iagp->inoext[extno], ino, sbi->l2nbperpage); in diRead()
355 agstart = le64_to_cpu(iagp->agstart); in diRead()
359 rel_inode = (ino & (INOSPERPAGE - 1)); in diRead()
360 pageno = blkno >> sbi->l2nbperpage; in diRead()
362 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diRead()
367 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diRead()
370 rel_inode += block_offset << sbi->l2niperblk; in diRead()
373 rel_inode -= inodes_left; in diRead()
378 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diRead()
381 return -EIO; in diRead()
385 dp = (struct dinode *) mp->data; in diRead()
388 if (ip->i_ino != le32_to_cpu(dp->di_number)) { in diRead()
389 jfs_error(ip->i_sb, "i_ino != di_number\n"); in diRead()
390 rc = -EIO; in diRead()
391 } else if (le32_to_cpu(dp->di_nlink) == 0) in diRead()
392 rc = -ESTALE; in diRead()
394 /* copy the disk inode to the in-memory inode */ in diRead()
395 rc = copy_from_dinode(dp, ip); in diRead()
400 JFS_IP(ip)->agstart = agstart; in diRead()
401 JFS_IP(ip)->active_ag = -1; in diRead()
403 return (rc); in diRead()
408 * NAME: diReadSpecial()
416 * inode map, since these inodes are at a fixed location
417 * and in some cases the aggregate inode map isn't initialized
421 * sb - filesystem superblock
422 * inum - aggregate inode number
423 * secondary - 1 if secondary aggregate inode table
426 * new inode - success
427 * NULL - i/o error.
444 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diReadSpecial()
445 JFS_IP(ip)->ipimap = sbi->ipaimap2; in diReadSpecial()
448 JFS_IP(ip)->ipimap = sbi->ipaimap; in diReadSpecial()
453 ip->i_ino = inum; in diReadSpecial()
458 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diReadSpecial()
466 dp = (struct dinode *) (mp->data); in diReadSpecial()
469 /* copy on-disk inode to in-memory inode */ in diReadSpecial()
480 ip->i_mapping->a_ops = &jfs_metapage_aops; in diReadSpecial()
481 mapping_set_gfp_mask(ip->i_mapping, GFP_NOFS); in diReadSpecial()
484 ip->i_flags |= S_NOQUOTA; in diReadSpecial()
486 if ((inum == FILESYSTEM_I) && (JFS_IP(ip)->ipimap == sbi->ipaimap)) { in diReadSpecial()
487 sbi->gengen = le32_to_cpu(dp->di_gengen); in diReadSpecial()
488 sbi->inostamp = le32_to_cpu(dp->di_inostamp); in diReadSpecial()
500 * NAME: diWriteSpecial()
505 * ip - special inode
506 * secondary - 1 if secondary aggregate inode table
513 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWriteSpecial()
516 ino_t inum = ip->i_ino; in diWriteSpecial()
520 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage; in diWriteSpecial()
529 mp = read_metapage(ip, address << sbi->l2nbperpage, PSIZE, 1); in diWriteSpecial()
536 dp = (struct dinode *) (mp->data); in diWriteSpecial()
539 /* copy on-disk inode to in-memory inode */ in diWriteSpecial()
541 memcpy(&dp->di_xtroot, &JFS_IP(ip)->i_xtroot, 288); in diWriteSpecial()
544 dp->di_gengen = cpu_to_le32(sbi->gengen); in diWriteSpecial()
551 * NAME: diFreeSpecial()
561 filemap_write_and_wait(ip->i_mapping); in diFreeSpecial()
562 truncate_inode_pages(ip->i_mapping, 0); in diFreeSpecial()
569 * NAME: diWrite()
571 * FUNCTION: write the on-disk inode portion of the in-memory inode
572 * to its corresponding on-disk inode.
585 * tid - transacation id
586 * ip - pointer to incore inode to be written to the inode extent.
589 * 0 - success
590 * -EIO - i/o error.
594 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in diWrite()
596 int rc = 0; in diWrite() local
614 ipimap = jfs_ip->ipimap; in diWrite()
616 ino = ip->i_ino & (INOSPERIAG - 1); in diWrite()
618 if (!addressPXD(&(jfs_ip->ixpxd)) || in diWrite()
619 (lengthPXD(&(jfs_ip->ixpxd)) != in diWrite()
620 JFS_IP(ipimap)->i_imap->im_nbperiext)) { in diWrite()
621 jfs_error(ip->i_sb, "ixpxd invalid\n"); in diWrite()
622 return -EIO; in diWrite()
629 blkno = INOPBLK(&(jfs_ip->ixpxd), ino, sbi->l2nbperpage); in diWrite()
631 rel_inode = (ino & (INOSPERPAGE - 1)); in diWrite()
632 pageno = blkno >> sbi->l2nbperpage; in diWrite()
634 if ((block_offset = ((u32) blkno & (sbi->nbperpage - 1)))) { in diWrite()
639 (sbi->nbperpage - block_offset) << sbi->l2niperblk; in diWrite()
642 rel_inode += block_offset << sbi->l2niperblk; in diWrite()
645 rel_inode -= inodes_left; in diWrite()
650 mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1); in diWrite()
652 return -EIO; in diWrite()
655 dp = (struct dinode *) mp->data; in diWrite()
658 dioffset = (ino & (INOSPERPAGE - 1)) << L2DISIZE; in diWrite()
661 * acquire transaction lock on the on-disk inode; in diWrite()
667 dilinelock = (struct linelock *) & ditlck->lock; in diWrite()
670 * copy btree root from in-memory inode to on-disk inode in diWrite()
672 * (tlock is taken from inline B+-tree root in in-memory in diWrite()
673 * inode when the B+-tree root is updated, which is pointed in diWrite()
674 * by jfs_ip->blid as well as being on tx tlock list) in diWrite()
677 * in in-memory inode, where txLog() will log from, and, in diWrite()
678 * for xtree root, txUpdateMap() will update map and reset in diWrite()
682 if (S_ISDIR(ip->i_mode) && (lid = jfs_ip->xtlid)) { in diWrite()
690 jfs_ip->xtlid = 0; in diWrite()
692 assert(tlck->type & tlckXTREE); in diWrite()
693 tlck->type |= tlckBTROOT; in diWrite()
694 tlck->mp = mp; in diWrite()
695 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
700 p = &jfs_ip->i_xtroot; in diWrite()
701 xp = (xtpage_t *) &dp->di_dirtable; in diWrite()
702 lv = ilinelock->lv; in diWrite()
703 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
704 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
705 lv->length << L2XTSLOTSIZE); in diWrite()
708 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
709 xad = &xp->xad[XTENTRYSTART]; in diWrite()
711 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
712 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
713 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
716 if ((lid = jfs_ip->blid) == 0) in diWrite()
718 jfs_ip->blid = 0; in diWrite()
721 type = tlck->type; in diWrite()
722 tlck->type |= tlckBTROOT; in diWrite()
723 tlck->mp = mp; in diWrite()
724 ilinelock = (struct linelock *) & tlck->lock; in diWrite()
736 p = &jfs_ip->i_xtroot; in diWrite()
737 xp = &dp->di_xtroot; in diWrite()
738 lv = ilinelock->lv; in diWrite()
739 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
740 memcpy(&xp->xad[lv->offset], &p->xad[lv->offset], in diWrite()
741 lv->length << L2XTSLOTSIZE); in diWrite()
744 /* reset on-disk (metadata page) xtree XAD_NEW bit */ in diWrite()
745 xad = &xp->xad[XTENTRYSTART]; in diWrite()
747 n < le16_to_cpu(xp->header.nextindex); n++, xad++) in diWrite()
748 if (xad->flag & (XAD_NEW | XAD_EXTENDED)) in diWrite()
749 xad->flag &= ~(XAD_NEW | XAD_EXTENDED); in diWrite()
760 p = (dtpage_t *) &jfs_ip->i_dtroot; in diWrite()
761 xp = (dtpage_t *) & dp->di_dtroot; in diWrite()
762 lv = ilinelock->lv; in diWrite()
763 for (n = 0; n < ilinelock->index; n++, lv++) { in diWrite()
764 memcpy(&xp->slot[lv->offset], &p->slot[lv->offset], in diWrite()
765 lv->length << L2DTSLOTSIZE); in diWrite()
773 * copy inline symlink from in-memory inode to on-disk inode in diWrite()
775 if (S_ISLNK(ip->i_mode) && ip->i_size < IDATASIZE) { in diWrite()
776 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
777 lv->offset = (dioffset + 2 * 128) >> L2INODESLOTSIZE; in diWrite()
778 lv->length = 2; in diWrite()
779 memcpy(&dp->di_fastsymlink, jfs_ip->i_inline, IDATASIZE); in diWrite()
780 dilinelock->index++; in diWrite()
783 * copy inline data from in-memory inode to on-disk inode: in diWrite()
787 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
788 lv->offset = (dioffset + 3 * 128) >> L2INODESLOTSIZE; in diWrite()
789 lv->length = 1; in diWrite()
790 memcpy(&dp->di_inlineea, jfs_ip->i_inline_ea, INODESLOTSIZE); in diWrite()
791 dilinelock->index++; in diWrite()
799 lv = & dilinelock->lv[dilinelock->index]; in diWrite()
800 lv->offset = dioffset >> L2INODESLOTSIZE; in diWrite()
803 lv->length = 2; in diWrite()
804 memcpy(&dp->di_dirtable, &jfs_ip->i_dirtable, 96); in diWrite()
806 lv->length = 1; in diWrite()
807 dilinelock->index++; in diWrite()
809 /* release the buffer holding the updated on-disk inode. in diWrite()
814 return (rc); in diWrite()
819 * NAME: diFree(ip)
821 * FUNCTION: free a specified inode from the inode working map
842 * the inode map's free iag list.
850 * ip - inode to be freed.
853 * 0 - success
854 * -EIO - i/o error.
858 int rc; in diFree() local
859 ino_t inum = ip->i_ino; in diFree()
865 struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; in diFree()
866 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diFree()
884 * the map. in diFree()
886 if (iagno >= imap->im_nextiag) { in diFree()
889 jfs_error(ip->i_sb, "inum = %d, iagno = %d, nextiag = %d\n", in diFree()
890 (uint) inum, iagno, imap->im_nextiag); in diFree()
891 return -EIO; in diFree()
896 agno = BLKTOAG(JFS_IP(ip)->agstart, JFS_SBI(ip->i_sb)); in diFree()
898 /* Lock the AG specific inode map information in diFree()
909 if ((rc = diIAGRead(imap, iagno, &mp))) { in diFree()
912 return (rc); in diFree()
914 iagp = (struct iag *) mp->data; in diFree()
919 ino = inum & (INOSPERIAG - 1); in diFree()
921 bitno = ino & (INOSPEREXT - 1); in diFree()
924 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diFree()
925 jfs_error(ip->i_sb, "wmap shows inode already free\n"); in diFree()
928 if (!addressPXD(&iagp->inoext[extno])) { in diFree()
932 jfs_error(ip->i_sb, "invalid inoext\n"); in diFree()
933 return -EIO; in diFree()
938 bitmap = le32_to_cpu(iagp->wmap[extno]) & ~mask; in diFree()
940 if (imap->im_agctl[agno].numfree > imap->im_agctl[agno].numinos) { in diFree()
944 jfs_error(ip->i_sb, "numfree > numinos\n"); in diFree()
945 return -EIO; in diFree()
952 imap->im_agctl[agno].numfree < 96 || in diFree()
953 (imap->im_agctl[agno].numfree < 288 && in diFree()
954 (((imap->im_agctl[agno].numfree * 100) / in diFree()
955 imap->im_agctl[agno].numinos) <= 25))) { in diFree()
960 if (iagp->nfreeinos == 0) { in diFree()
966 if ((fwd = imap->im_agctl[agno].inofree) >= 0) { in diFree()
970 if ((rc = diIAGRead(imap, fwd, &))) { in diFree()
974 return (rc); in diFree()
976 aiagp = (struct iag *) amp->data; in diFree()
980 aiagp->inofreeback = cpu_to_le32(iagno); in diFree()
988 iagp->inofreefwd = in diFree()
989 cpu_to_le32(imap->im_agctl[agno].inofree); in diFree()
990 iagp->inofreeback = cpu_to_le32(-1); in diFree()
991 imap->im_agctl[agno].inofree = iagno; in diFree()
995 /* update the free inode summary map for the extent if in diFree()
1000 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diFree()
1002 bitno = extno & (EXTSPERSUM - 1); in diFree()
1003 iagp->inosmap[sword] &= in diFree()
1009 iagp->wmap[extno] = cpu_to_le32(bitmap); in diFree()
1012 * map level. in diFree()
1014 le32_add_cpu(&iagp->nfreeinos, 1); in diFree()
1015 imap->im_agctl[agno].numfree += 1; in diFree()
1016 atomic_inc(&imap->im_numfree); in diFree()
1018 /* release the AG inode map lock in diFree()
1038 fwd = back = -1; in diFree()
1043 if (iagp->nfreeexts == 0) { in diFree()
1050 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diFree()
1051 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1053 aiagp = (struct iag *) amp->data; in diFree()
1059 * free list and placed on the inode map's free iag list. in diFree()
1061 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1067 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diFree()
1068 if ((rc = diIAGRead(imap, fwd, &))) in diFree()
1070 aiagp = (struct iag *) amp->data; in diFree()
1073 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diFree()
1074 if ((rc = diIAGRead(imap, back, &bmp))) in diFree()
1076 biagp = (struct iag *) bmp->data; in diFree()
1084 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1085 int inofreeback = le32_to_cpu(iagp->inofreeback); in diFree()
1086 int inofreefwd = le32_to_cpu(iagp->inofreefwd); in diFree()
1093 * from up above, since re-reading an iag (buffer) in diFree()
1099 ciagp = (struct iag *) amp->data; in diFree()
1101 ciagp = (struct iag *) bmp->data; in diFree()
1103 if ((rc = in diFree()
1106 ciagp = (struct iag *) cmp->data; in diFree()
1113 diagp = (struct iag *) amp->data; in diFree()
1115 diagp = (struct iag *) bmp->data; in diFree()
1117 if ((rc = in diFree()
1120 diagp = (struct iag *) dmp->data; in diFree()
1131 freepxd = iagp->inoext[extno]; in diFree()
1140 if (iagp->nfreeexts == 0) { in diFree()
1142 aiagp->extfreeback = cpu_to_le32(iagno); in diFree()
1144 iagp->extfreefwd = in diFree()
1145 cpu_to_le32(imap->im_agctl[agno].extfree); in diFree()
1146 iagp->extfreeback = cpu_to_le32(-1); in diFree()
1147 imap->im_agctl[agno].extfree = iagno; in diFree()
1150 * are now free and place it on the inode map iag free list. in diFree()
1152 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG - 1)) { in diFree()
1154 aiagp->extfreeback = iagp->extfreeback; in diFree()
1157 biagp->extfreefwd = iagp->extfreefwd; in diFree()
1159 imap->im_agctl[agno].extfree = in diFree()
1160 le32_to_cpu(iagp->extfreefwd); in diFree()
1162 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diFree()
1165 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diFree()
1166 imap->im_freeiag = iagno; in diFree()
1174 if (iagp->nfreeinos == cpu_to_le32(INOSPEREXT - 1)) { in diFree()
1175 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) in diFree()
1176 ciagp->inofreeback = iagp->inofreeback; in diFree()
1178 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) in diFree()
1179 diagp->inofreefwd = iagp->inofreefwd; in diFree()
1181 imap->im_agctl[agno].inofree = in diFree()
1182 le32_to_cpu(iagp->inofreefwd); in diFree()
1184 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diFree()
1187 /* update the inode extent address and working map in diFree()
1189 * the permanent map should have been updated already in diFree()
1192 if (iagp->pmap[extno] != 0) { in diFree()
1193 jfs_error(ip->i_sb, "the pmap does not show inode free\n"); in diFree()
1195 iagp->wmap[extno] = 0; in diFree()
1196 PXDlength(&iagp->inoext[extno], 0); in diFree()
1197 PXDaddress(&iagp->inoext[extno], 0); in diFree()
1201 * the inode summary map is marked to indicate no inodes in diFree()
1205 bitno = extno & (EXTSPERSUM - 1); in diFree()
1207 iagp->inosmap[sword] |= cpu_to_le32(mask); in diFree()
1208 iagp->extsmap[sword] &= cpu_to_le32(~mask); in diFree()
1213 le32_add_cpu(&iagp->nfreeinos, -(INOSPEREXT - 1)); in diFree()
1214 le32_add_cpu(&iagp->nfreeexts, 1); in diFree()
1217 * at the ag and inode map level. in diFree()
1219 imap->im_agctl[agno].numfree -= (INOSPEREXT - 1); in diFree()
1220 imap->im_agctl[agno].numinos -= INOSPEREXT; in diFree()
1221 atomic_sub(INOSPEREXT - 1, &imap->im_numfree); in diFree()
1222 atomic_sub(INOSPEREXT, &imap->im_numinos); in diFree()
1234 * start transaction to update block allocation map in diFree()
1242 tid = txBegin(ipimap->i_sb, COMMIT_FORCE); in diFree()
1243 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1253 pxdlock = (struct pxd_lock *) & tlck->lock; in diFree()
1254 pxdlock->flag = mlckFREEPXD; in diFree()
1255 pxdlock->pxd = freepxd; in diFree()
1256 pxdlock->index = 1; in diFree()
1273 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diFree()
1276 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diFree()
1278 /* unlock the AG inode map information */ in diFree()
1299 return (rc); in diFree()
1311 ip->i_ino = (iagno << L2INOSPERIAG) + ino; in diInitInode()
1312 jfs_ip->ixpxd = iagp->inoext[extno]; in diInitInode()
1313 jfs_ip->agstart = le64_to_cpu(iagp->agstart); in diInitInode()
1314 jfs_ip->active_ag = -1; in diInitInode()
1319 * NAME: diAlloc(pip,dir,ip)
1321 * FUNCTION: allocate a disk inode from the inode working map
1325 * pip - pointer to incore inode for the parent inode.
1326 * dir - 'true' if the new disk inode is for a directory.
1327 * ip - pointer to a new inode
1330 * 0 - success.
1331 * -ENOSPC - insufficient disk resources.
1332 * -EIO - i/o error.
1336 int rc, ino, iagno, addext, extno, bitno, sword; in diAlloc() local
1345 /* get the pointers to the inode map inode and the in diAlloc()
1348 ipimap = JFS_SBI(pip->i_sb)->ipimap; in diAlloc()
1349 imap = JFS_IP(ipimap)->i_imap; in diAlloc()
1350 JFS_IP(ip)->ipimap = ipimap; in diAlloc()
1351 JFS_IP(ip)->fileset = FILESYSTEM_I; in diAlloc()
1357 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1366 * hint. (we use a left-to-right policy to attempt to avoid in diAlloc()
1372 agno = BLKTOAG(JFS_IP(pip)->agstart, JFS_SBI(pip->i_sb)); in diAlloc()
1374 if (atomic_read(&JFS_SBI(pip->i_sb)->bmap->db_active[agno])) { in diAlloc()
1380 agno = dbNextAG(JFS_SBI(pip->i_sb)->ipbmap); in diAlloc()
1385 inum = pip->i_ino + 1; in diAlloc()
1386 ino = inum & (INOSPERIAG - 1); in diAlloc()
1390 inum = pip->i_ino; in diAlloc()
1392 /* lock the AG inode map information */ in diAlloc()
1400 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAlloc()
1403 return (rc); in diAlloc()
1405 iagp = (struct iag *) mp->data; in diAlloc()
1411 addext = (imap->im_agctl[agno].numfree < 32 && iagp->nfreeexts); in diAlloc()
1419 if (iagp->nfreeinos || addext) { in diAlloc()
1427 if (addressPXD(&iagp->inoext[extno])) { in diAlloc()
1428 bitno = ino & (INOSPEREXT - 1); in diAlloc()
1430 diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1438 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1440 if (rc) { in diAlloc()
1441 assert(rc == -EIO); in diAlloc()
1455 return (rc); in diAlloc()
1461 EXTSPERIAG - 1) ? 0 : extno + 1; in diAlloc()
1473 * here, so determine the starting summary map position in diAlloc()
1477 * map that represent extents prior to the extent containing in diAlloc()
1480 bitno = extno & (EXTSPERSUM - 1); in diAlloc()
1485 * summary map. in diAlloc()
1487 mask = (bitno == 0) ? 0 : (ONES << (EXTSPERSUM - bitno)); in diAlloc()
1488 inosmap = le32_to_cpu(iagp->inosmap[sword]) | mask; in diAlloc()
1489 extsmap = le32_to_cpu(iagp->extsmap[sword]) | mask; in diAlloc()
1496 * map describes an extent with free inodes. in diAlloc()
1505 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), in diAlloc()
1511 jfs_error(ip->i_sb, in diAlloc()
1513 return -EIO; in diAlloc()
1518 * map. in diAlloc()
1521 rc = diAllocBit(imap, iagp, ino); in diAlloc()
1523 if (rc) in diAlloc()
1524 assert(rc == -EIO); in diAlloc()
1538 return (rc); in diAlloc()
1544 * extents summary map describes a free extent. in diAlloc()
1555 if ((rc = diNewExt(imap, iagp, extno))) { in diAlloc()
1560 if (rc == -ENOSPC) in diAlloc()
1563 assert(rc == -EIO); in diAlloc()
1578 return (rc); in diAlloc()
1581 /* move on to the next set of summary map words. in diAlloc()
1583 sword = (sword == SMAPSZ - 1) ? 0 : sword + 1; in diAlloc()
1584 inosmap = le32_to_cpu(iagp->inosmap[sword]); in diAlloc()
1585 extsmap = le32_to_cpu(iagp->extsmap[sword]); in diAlloc()
1598 rc = diAllocAG(imap, agno, dir, ip); in diAlloc()
1602 if (rc != -ENOSPC) in diAlloc()
1603 return (rc); in diAlloc()
1613 * NAME: diAllocAG(imap,agno,dir,ip)
1629 * imap - pointer to inode map control structure.
1630 * agno - allocation group to allocate from.
1631 * dir - 'true' if the new disk inode is for a directory.
1632 * ip - pointer to the new inode to be filled in on successful return
1637 * 0 - success.
1638 * -ENOSPC - insufficient disk resources.
1639 * -EIO - i/o error.
1644 int rc, addext, numfree, numinos; in diAllocAG() local
1649 numfree = imap->im_agctl[agno].numfree; in diAllocAG()
1650 numinos = imap->im_agctl[agno].numinos; in diAllocAG()
1653 jfs_error(ip->i_sb, "numfree > numinos\n"); in diAllocAG()
1654 return -EIO; in diAllocAG()
1677 if ((rc = diAllocExt(imap, agno, ip)) != -ENOSPC) in diAllocAG()
1678 return (rc); in diAllocAG()
1689 * NAME: diAllocAny(imap,agno,dir,iap)
1699 * imap - pointer to inode map control structure.
1700 * agno - primary allocation group (to avoid).
1701 * dir - 'true' if the new disk inode is for a directory.
1702 * ip - pointer to a new inode to be filled in on successful return
1707 * 0 - success.
1708 * -ENOSPC - insufficient disk resources.
1709 * -EIO - i/o error.
1714 int ag, rc; in diAllocAny() local
1715 int maxag = JFS_SBI(imap->im_ipimap->i_sb)->bmap->db_maxag; in diAllocAny()
1724 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1728 if (rc != -ENOSPC) in diAllocAny()
1729 return (rc); in diAllocAny()
1737 rc = diAllocAG(imap, ag, dir, ip); in diAllocAny()
1741 if (rc != -ENOSPC) in diAllocAny()
1742 return (rc); in diAllocAny()
1747 return -ENOSPC; in diAllocAny()
1752 * NAME: diAllocIno(imap,agno,ip)
1759 * the iag's free inode summary map to find the leftmost
1765 * imap - pointer to inode map control structure.
1766 * agno - allocation group.
1767 * ip - pointer to new inode to be filled in on successful return
1772 * 0 - success.
1773 * -ENOSPC - insufficient disk resources.
1774 * -EIO - i/o error.
1778 int iagno, ino, rc, rem, extno, sword; in diAllocIno() local
1784 if ((iagno = imap->im_agctl[agno].inofree) < 0) in diAllocIno()
1785 return -ENOSPC; in diAllocIno()
1788 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocIno()
1792 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocIno()
1793 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1794 return (rc); in diAllocIno()
1796 iagp = (struct iag *) mp->data; in diAllocIno()
1801 if (!iagp->nfreeinos) { in diAllocIno()
1802 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1804 jfs_error(ip->i_sb, "nfreeinos = 0, but iag on freelist\n"); in diAllocIno()
1805 return -EIO; in diAllocIno()
1808 /* scan the free inode summary map to find an extent in diAllocIno()
1813 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1815 jfs_error(ip->i_sb, in diAllocIno()
1816 "free inode not found in summary map\n"); in diAllocIno()
1817 return -EIO; in diAllocIno()
1820 if (~iagp->inosmap[sword]) in diAllocIno()
1827 rem = diFindFree(le32_to_cpu(iagp->inosmap[sword]), 0); in diAllocIno()
1829 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1831 jfs_error(ip->i_sb, "no free extent found\n"); in diAllocIno()
1832 return -EIO; in diAllocIno()
1838 rem = diFindFree(le32_to_cpu(iagp->wmap[extno]), 0); in diAllocIno()
1840 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1842 jfs_error(ip->i_sb, "free inode not found\n"); in diAllocIno()
1843 return -EIO; in diAllocIno()
1852 rc = diAllocBit(imap, iagp, ino); in diAllocIno()
1853 IREAD_UNLOCK(imap->im_ipimap); in diAllocIno()
1854 if (rc) { in diAllocIno()
1856 return (rc); in diAllocIno()
1869 * NAME: diAllocExt(imap,agno,ip)
1882 * once an iag has been selected, the free extent summary map
1889 * imap - pointer to inode map control structure.
1890 * agno - allocation group number.
1891 * ip - pointer to new inode to be filled in on successful return
1896 * 0 - success.
1897 * -ENOSPC - insufficient disk resources.
1898 * -EIO - i/o error.
1902 int rem, iagno, sword, extno, rc; in diAllocExt() local
1909 if ((iagno = imap->im_agctl[agno].extfree) < 0) { in diAllocExt()
1913 if ((rc = diNewIAG(imap, &iagno, agno, &mp))) { in diAllocExt()
1914 return (rc); in diAllocExt()
1916 iagp = (struct iag *) mp->data; in diAllocExt()
1920 iagp->agstart = in diAllocExt()
1921 cpu_to_le64(AGTOBLK(agno, imap->im_ipimap)); in diAllocExt()
1925 IREAD_LOCK(imap->im_ipimap, RDWRLOCK_IMAP); in diAllocExt()
1926 if ((rc = diIAGRead(imap, iagno, &mp))) { in diAllocExt()
1927 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1928 jfs_error(ip->i_sb, "error reading iag\n"); in diAllocExt()
1929 return rc; in diAllocExt()
1931 iagp = (struct iag *) mp->data; in diAllocExt()
1934 /* using the free extent summary map, find a free extent. in diAllocExt()
1939 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1940 jfs_error(ip->i_sb, "free ext summary map not found\n"); in diAllocExt()
1941 return -EIO; in diAllocExt()
1943 if (~iagp->extsmap[sword]) in diAllocExt()
1949 rem = diFindFree(le32_to_cpu(iagp->extsmap[sword]), 0); in diAllocExt()
1952 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1953 jfs_error(ip->i_sb, "free extent not found\n"); in diAllocExt()
1954 return -EIO; in diAllocExt()
1960 rc = diNewExt(imap, iagp, extno); in diAllocExt()
1961 IREAD_UNLOCK(imap->im_ipimap); in diAllocExt()
1962 if (rc) { in diAllocExt()
1964 * place it back on the inode map's iag free list, and in diAllocExt()
1967 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diAllocExt()
1969 iagp->iagfree = cpu_to_le32(imap->im_freeiag); in diAllocExt()
1970 imap->im_freeiag = iagno; in diAllocExt()
1974 return (rc); in diAllocExt()
1988 * NAME: diAllocBit(imap,iagp,ino)
2008 * imap - pointer to inode map control structure.
2009 * iagp - pointer to iag.
2010 * ino - inode number to be allocated within the iag.
2013 * 0 - success.
2014 * -ENOSPC - insufficient disk resources.
2015 * -EIO - i/o error.
2019 int extno, bitno, agno, sword, rc; in diAllocBit() local
2029 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2030 if ((int) le32_to_cpu(iagp->inofreefwd) >= 0) { in diAllocBit()
2031 if ((rc = in diAllocBit()
2032 diIAGRead(imap, le32_to_cpu(iagp->inofreefwd), in diAllocBit()
2034 return (rc); in diAllocBit()
2035 aiagp = (struct iag *) amp->data; in diAllocBit()
2038 if ((int) le32_to_cpu(iagp->inofreeback) >= 0) { in diAllocBit()
2039 if ((rc = in diAllocBit()
2041 le32_to_cpu(iagp->inofreeback), in diAllocBit()
2045 return (rc); in diAllocBit()
2047 biagp = (struct iag *) bmp->data; in diAllocBit()
2054 agno = BLKTOAG(le64_to_cpu(iagp->agstart), JFS_SBI(imap->im_ipimap->i_sb)); in diAllocBit()
2056 bitno = ino & (INOSPEREXT - 1); in diAllocBit()
2058 /* compute the mask for setting the map. in diAllocBit()
2064 if (((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) || in diAllocBit()
2065 ((le32_to_cpu(iagp->wmap[extno]) & mask) != 0) || in diAllocBit()
2066 (addressPXD(&iagp->inoext[extno]) == 0)) { in diAllocBit()
2072 jfs_error(imap->im_ipimap->i_sb, "iag inconsistent\n"); in diAllocBit()
2073 return -EIO; in diAllocBit()
2076 /* mark the inode as allocated in the working map. in diAllocBit()
2078 iagp->wmap[extno] |= cpu_to_le32(mask); in diAllocBit()
2082 * map to reflect this. in diAllocBit()
2084 if (iagp->wmap[extno] == cpu_to_le32(ONES)) { in diAllocBit()
2086 bitno = extno & (EXTSPERSUM - 1); in diAllocBit()
2087 iagp->inosmap[sword] |= cpu_to_le32(HIGHORDER >> bitno); in diAllocBit()
2093 if (iagp->nfreeinos == cpu_to_le32(1)) { in diAllocBit()
2095 aiagp->inofreeback = iagp->inofreeback; in diAllocBit()
2100 biagp->inofreefwd = iagp->inofreefwd; in diAllocBit()
2103 imap->im_agctl[agno].inofree = in diAllocBit()
2104 le32_to_cpu(iagp->inofreefwd); in diAllocBit()
2106 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diAllocBit()
2110 * map levels. in diAllocBit()
2112 le32_add_cpu(&iagp->nfreeinos, -1); in diAllocBit()
2113 imap->im_agctl[agno].numfree -= 1; in diAllocBit()
2114 atomic_dec(&imap->im_numfree); in diAllocBit()
2121 * NAME: diNewExt(imap,iagp,extno)
2154 * imap - pointer to inode map control structure.
2155 * iagp - pointer to iag.
2156 * extno - extent number.
2159 * 0 - success.
2160 * -ENOSPC - insufficient disk resources.
2161 * -EIO - i/o error.
2165 int agno, iagno, fwd, back, freei = 0, sword, rc; in diNewExt() local
2178 if (!iagp->nfreeexts) { in diNewExt()
2179 jfs_error(imap->im_ipimap->i_sb, "no free extents\n"); in diNewExt()
2180 return -EIO; in diNewExt()
2183 /* get the inode map inode. in diNewExt()
2185 ipimap = imap->im_ipimap; in diNewExt()
2186 sbi = JFS_SBI(ipimap->i_sb); in diNewExt()
2192 agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi); in diNewExt()
2193 iagno = le32_to_cpu(iagp->iagnum); in diNewExt()
2200 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2201 if ((fwd = le32_to_cpu(iagp->extfreefwd)) >= 0) { in diNewExt()
2202 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2203 return (rc); in diNewExt()
2204 aiagp = (struct iag *) amp->data; in diNewExt()
2207 if ((back = le32_to_cpu(iagp->extfreeback)) >= 0) { in diNewExt()
2208 if ((rc = diIAGRead(imap, back, &bmp))) in diNewExt()
2210 biagp = (struct iag *) bmp->data; in diNewExt()
2219 fwd = back = -1; in diNewExt()
2220 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2221 if ((fwd = imap->im_agctl[agno].extfree) >= 0) { in diNewExt()
2222 if ((rc = diIAGRead(imap, fwd, &))) in diNewExt()
2224 aiagp = (struct iag *) amp->data; in diNewExt()
2236 if (iagp->nfreeinos == 0) { in diNewExt()
2237 freei = imap->im_agctl[agno].inofree; in diNewExt()
2245 if ((rc = diIAGRead(imap, freei, &cmp))) in diNewExt()
2247 ciagp = (struct iag *) cmp->data; in diNewExt()
2250 jfs_error(imap->im_ipimap->i_sb, in diNewExt()
2252 rc = -EIO; in diNewExt()
2260 if ((extno == 0) || (addressPXD(&iagp->inoext[extno - 1]) == 0)) in diNewExt()
2261 hint = ((s64) agno << sbi->bmap->db_agl2size) - 1; in diNewExt()
2263 hint = addressPXD(&iagp->inoext[extno - 1]) + in diNewExt()
2264 lengthPXD(&iagp->inoext[extno - 1]) - 1; in diNewExt()
2266 if ((rc = dbAlloc(ipimap, hint, (s64) imap->im_nbperiext, &blkno))) in diNewExt()
2277 for (i = 0; i < imap->im_nbperiext; i += sbi->nbperpage) { in diNewExt()
2282 rc = -EIO; in diNewExt()
2285 dp = (struct dinode *) dmp->data; in diNewExt()
2291 dp->di_inostamp = cpu_to_le32(sbi->inostamp); in diNewExt()
2292 dp->di_number = cpu_to_le32(ino); in diNewExt()
2293 dp->di_fileset = cpu_to_le32(FILESYSTEM_I); in diNewExt()
2294 dp->di_mode = 0; in diNewExt()
2295 dp->di_nlink = 0; in diNewExt()
2296 PXDaddress(&(dp->di_ixpxd), blkno); in diNewExt()
2297 PXDlength(&(dp->di_ixpxd), imap->im_nbperiext); in diNewExt()
2305 if (iagp->nfreeexts == cpu_to_le32(1)) { in diNewExt()
2307 aiagp->extfreeback = iagp->extfreeback; in diNewExt()
2310 biagp->extfreefwd = iagp->extfreefwd; in diNewExt()
2312 imap->im_agctl[agno].extfree = in diNewExt()
2313 le32_to_cpu(iagp->extfreefwd); in diNewExt()
2315 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2320 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diNewExt()
2322 aiagp->extfreeback = cpu_to_le32(iagno); in diNewExt()
2324 iagp->extfreefwd = cpu_to_le32(fwd); in diNewExt()
2325 iagp->extfreeback = cpu_to_le32(-1); in diNewExt()
2326 imap->im_agctl[agno].extfree = iagno; in diNewExt()
2333 if (iagp->nfreeinos == 0) { in diNewExt()
2335 ciagp->inofreeback = cpu_to_le32(iagno); in diNewExt()
2337 iagp->inofreefwd = in diNewExt()
2338 cpu_to_le32(imap->im_agctl[agno].inofree); in diNewExt()
2339 iagp->inofreeback = cpu_to_le32(-1); in diNewExt()
2340 imap->im_agctl[agno].inofree = iagno; in diNewExt()
2344 PXDlength(&iagp->inoext[extno], imap->im_nbperiext); in diNewExt()
2345 PXDaddress(&iagp->inoext[extno], blkno); in diNewExt()
2347 /* initialize the working and persistent map of the extent. in diNewExt()
2348 * the working map will be initialized such that in diNewExt()
2351 iagp->wmap[extno] = cpu_to_le32(HIGHORDER); in diNewExt()
2352 iagp->pmap[extno] = 0; in diNewExt()
2359 mask = HIGHORDER >> (extno & (EXTSPERSUM - 1)); in diNewExt()
2360 iagp->extsmap[sword] |= cpu_to_le32(mask); in diNewExt()
2361 iagp->inosmap[sword] &= cpu_to_le32(~mask); in diNewExt()
2366 le32_add_cpu(&iagp->nfreeinos, (INOSPEREXT - 1)); in diNewExt()
2367 le32_add_cpu(&iagp->nfreeexts, -1); in diNewExt()
2371 imap->im_agctl[agno].numfree += (INOSPEREXT - 1); in diNewExt()
2372 imap->im_agctl[agno].numinos += INOSPEREXT; in diNewExt()
2374 /* update the free and backed inode counts for the inode map. in diNewExt()
2376 atomic_add(INOSPEREXT - 1, &imap->im_numfree); in diNewExt()
2377 atomic_add(INOSPEREXT, &imap->im_numinos); in diNewExt()
2401 return (rc); in diNewExt()
2406 * NAME: diNewIAG(imap,iagnop,agno)
2410 * first tries to allocate the iag from the inode map
2414 * if the inode map's iag free list is empty, the inode map
2419 * imap - pointer to inode map control structure.
2420 * iagnop - pointer to an iag number set with the number of the
2422 * agno - allocation group number.
2423 * bpp - Buffer pointer to be filled in with new IAG's buffer
2426 * 0 - success.
2427 * -ENOSPC - insufficient disk resources.
2428 * -EIO - i/o error.
2432 * write lock on the map is held inside;
2433 * read lock on the map is held on successful completion;
2440 * . at start of logredo(): init in-memory imap with one additional iag page;
2441 * . at end of logredo(): re-read imap inode to determine
2447 int rc; in diNewIAG() local
2459 /* pick up pointers to the inode map and mount inodes */ in diNewIAG()
2460 ipimap = imap->im_ipimap; in diNewIAG()
2461 sb = ipimap->i_sb; in diNewIAG()
2467 /* if there are any iags on the inode map free iag list, in diNewIAG()
2470 if (imap->im_freeiag >= 0) { in diNewIAG()
2472 iagno = imap->im_freeiag; in diNewIAG()
2475 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2477 /* no free iags. the inode map will have to be extented in diNewIAG()
2481 /* acquire inode map lock */ in diNewIAG()
2484 if (ipimap->i_size >> L2PSIZE != imap->im_nextiag + 1) { in diNewIAG()
2487 jfs_error(imap->im_ipimap->i_sb, in diNewIAG()
2488 "ipimap->i_size is wrong\n"); in diNewIAG()
2489 return -EIO; in diNewIAG()
2494 iagno = imap->im_nextiag; in diNewIAG()
2499 if (iagno > (MAXIAGS - 1)) { in diNewIAG()
2500 /* release the inode map lock */ in diNewIAG()
2503 rc = -ENOSPC; in diNewIAG()
2511 blkno = IAGTOLBLK(iagno, sbi->l2nbperpage); in diNewIAG()
2514 xlen = sbi->nbperpage; in diNewIAG()
2515 if ((rc = dbAlloc(ipimap, 0, (s64) xlen, &xaddr))) { in diNewIAG()
2516 /* release the inode map lock */ in diNewIAG()
2523 * start transaction of update of the inode map in diNewIAG()
2527 mutex_lock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2529 /* update the inode map addressing structure to point to it */ in diNewIAG()
2530 if ((rc = in diNewIAG()
2533 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2535 * not successfully added to the inode map in diNewIAG()
2539 /* release the inode map lock */ in diNewIAG()
2545 /* update the inode map's inode to reflect the extension */ in diNewIAG()
2546 ipimap->i_size += PSIZE; in diNewIAG()
2556 xtTruncate(tid, ipimap, ipimap->i_size - PSIZE, in diNewIAG()
2561 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2563 /* release the inode map lock */ in diNewIAG()
2566 rc = -EIO; in diNewIAG()
2569 iagp = (struct iag *) mp->data; in diNewIAG()
2573 iagp->iagnum = cpu_to_le32(iagno); in diNewIAG()
2574 iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1); in diNewIAG()
2575 iagp->extfreefwd = iagp->extfreeback = cpu_to_le32(-1); in diNewIAG()
2576 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2577 iagp->nfreeinos = 0; in diNewIAG()
2578 iagp->nfreeexts = cpu_to_le32(EXTSPERIAG); in diNewIAG()
2580 /* initialize the free inode summary map (free extent in diNewIAG()
2581 * summary map initialization handled by bzero). in diNewIAG()
2584 iagp->inosmap[i] = cpu_to_le32(ONES); in diNewIAG()
2597 rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE); in diNewIAG()
2600 mutex_unlock(&JFS_IP(ipimap)->commit_mutex); in diNewIAG()
2605 imap->im_nextiag += 1; in diNewIAG()
2610 imap->im_freeiag = iagno; in diNewIAG()
2617 /* release the inode map lock */ in diNewIAG()
2621 /* obtain read lock on map */ in diNewIAG()
2625 if ((rc = diIAGRead(imap, iagno, &mp))) { in diNewIAG()
2627 rc = -EIO; in diNewIAG()
2630 iagp = (struct iag *) mp->data; in diNewIAG()
2633 imap->im_freeiag = le32_to_cpu(iagp->iagfree); in diNewIAG()
2634 iagp->iagfree = cpu_to_le32(-1); in diNewIAG()
2644 return (rc); in diNewIAG()
2648 * NAME: diIAGRead()
2651 * or aggregate inode map.
2654 * imap - pointer to inode map control structure.
2655 * iagno - iag number.
2656 * bpp - point to buffer pointer to be filled in on successful
2665 * 0 - success.
2666 * -EIO - i/o error.
2670 struct inode *ipimap = imap->im_ipimap; in diIAGRead()
2674 blkno = IAGTOLBLK(iagno, JFS_SBI(ipimap->i_sb)->l2nbperpage); in diIAGRead()
2679 return -EIO; in diIAGRead()
2686 * NAME: diFindFree()
2692 * word - word to be examined.
2693 * start - starting bit position.
2713 * NAME: diUpdatePMap()
2715 * FUNCTION: Update the persistent map in an IAG for the allocation or
2718 * PRE CONDITIONS: Working map has already been updated for allocate.
2721 * ipimap - Incore inode map inode
2722 * inum - Number of inode to mark in permanent map
2723 * is_free - If 'true' indicates inode should be marked freed, otherwise
2733 int rc; in diUpdatePMap() local
2743 imap = JFS_IP(ipimap)->i_imap; in diUpdatePMap()
2746 /* make sure that the iag is contained within the map */ in diUpdatePMap()
2747 if (iagno >= imap->im_nextiag) { in diUpdatePMap()
2748 jfs_error(ipimap->i_sb, "the iag is outside the map\n"); in diUpdatePMap()
2749 return -EIO; in diUpdatePMap()
2753 rc = diIAGRead(imap, iagno, &mp); in diUpdatePMap()
2755 if (rc) in diUpdatePMap()
2756 return (rc); in diUpdatePMap()
2758 iagp = (struct iag *) mp->data; in diUpdatePMap()
2762 ino = inum & (INOSPERIAG - 1); in diUpdatePMap()
2764 bitno = ino & (INOSPEREXT - 1); in diUpdatePMap()
2767 * mark the inode free in persistent map: in diUpdatePMap()
2771 * map and in persistent map; in diUpdatePMap()
2772 * the inode will be freed from working map at the release in diUpdatePMap()
2775 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2776 jfs_error(ipimap->i_sb, in diUpdatePMap()
2780 if (!(le32_to_cpu(iagp->pmap[extno]) & mask)) { in diUpdatePMap()
2781 jfs_error(ipimap->i_sb, in diUpdatePMap()
2786 iagp->pmap[extno] &= cpu_to_le32(~mask); in diUpdatePMap()
2789 * mark the inode allocated in persistent map: in diUpdatePMap()
2792 /* The inode should be already allocated in the working map in diUpdatePMap()
2793 * and should be free in persistent map; in diUpdatePMap()
2795 if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) { in diUpdatePMap()
2797 jfs_error(ipimap->i_sb, in diUpdatePMap()
2798 "the inode is not allocated in the working map\n"); in diUpdatePMap()
2799 return -EIO; in diUpdatePMap()
2801 if ((le32_to_cpu(iagp->pmap[extno]) & mask) != 0) { in diUpdatePMap()
2803 jfs_error(ipimap->i_sb, in diUpdatePMap()
2804 "the inode is not free in the persistent map\n"); in diUpdatePMap()
2805 return -EIO; in diUpdatePMap()
2808 iagp->pmap[extno] |= cpu_to_le32(mask); in diUpdatePMap()
2813 lsn = tblk->lsn; in diUpdatePMap()
2814 log = JFS_SBI(tblk->sb)->log; in diUpdatePMap()
2816 if (mp->lsn != 0) { in diUpdatePMap()
2819 logdiff(diffp, mp->lsn, log); in diUpdatePMap()
2821 mp->lsn = lsn; in diUpdatePMap()
2823 list_move(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2826 assert(mp->clsn); in diUpdatePMap()
2827 logdiff(difft, tblk->clsn, log); in diUpdatePMap()
2828 logdiff(diffp, mp->clsn, log); in diUpdatePMap()
2830 mp->clsn = tblk->clsn; in diUpdatePMap()
2832 mp->log = log; in diUpdatePMap()
2833 mp->lsn = lsn; in diUpdatePMap()
2835 log->count++; in diUpdatePMap()
2836 list_add(&mp->synclist, &tblk->synclist); in diUpdatePMap()
2837 mp->clsn = tblk->clsn; in diUpdatePMap()
2854 int rc, rcx = 0; in diExtendFS() local
2855 struct inomap *imap = JFS_IP(ipimap)->i_imap; in diExtendFS()
2857 struct bmap *mp = JFS_SBI(ipbmap->i_sb)->bmap; in diExtendFS()
2864 imap->im_nextiag, atomic_read(&imap->im_numinos), in diExtendFS()
2865 atomic_read(&imap->im_numfree)); in diExtendFS()
2871 * i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn; in diExtendFS()
2877 imap->im_agctl[i].inofree = -1; in diExtendFS()
2878 imap->im_agctl[i].extfree = -1; in diExtendFS()
2879 imap->im_agctl[i].numinos = 0; /* number of backed inodes */ in diExtendFS()
2880 imap->im_agctl[i].numfree = 0; /* number of free backed inodes */ in diExtendFS()
2884 * process each iag page of the map. in diExtendFS()
2888 for (i = 0; i < imap->im_nextiag; i++) { in diExtendFS()
2889 if ((rc = diIAGRead(imap, i, &bp))) { in diExtendFS()
2890 rcx = rc; in diExtendFS()
2893 iagp = (struct iag *) bp->data; in diExtendFS()
2894 if (le32_to_cpu(iagp->iagnum) != i) { in diExtendFS()
2896 jfs_error(ipimap->i_sb, "unexpected value of iagnum\n"); in diExtendFS()
2897 return -EIO; in diExtendFS()
2901 if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) { in diExtendFS()
2906 agstart = le64_to_cpu(iagp->agstart); in diExtendFS()
2907 n = agstart >> mp->db_agl2size; in diExtendFS()
2908 iagp->agstart = cpu_to_le64((s64)n << mp->db_agl2size); in diExtendFS()
2911 numinos = (EXTSPERIAG - le32_to_cpu(iagp->nfreeexts)) in diExtendFS()
2915 imap->im_agctl[n].numinos += numinos; in diExtendFS()
2920 if ((int) le32_to_cpu(iagp->nfreeinos) > 0) { in diExtendFS()
2921 if ((head = imap->im_agctl[n].inofree) == -1) { in diExtendFS()
2922 iagp->inofreefwd = cpu_to_le32(-1); in diExtendFS()
2923 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2925 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2926 rcx = rc; in diExtendFS()
2929 hiagp = (struct iag *) hbp->data; in diExtendFS()
2930 hiagp->inofreeback = iagp->iagnum; in diExtendFS()
2931 iagp->inofreefwd = cpu_to_le32(head); in diExtendFS()
2932 iagp->inofreeback = cpu_to_le32(-1); in diExtendFS()
2936 imap->im_agctl[n].inofree = in diExtendFS()
2937 le32_to_cpu(iagp->iagnum); in diExtendFS()
2940 imap->im_agctl[n].numfree += in diExtendFS()
2941 le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2942 xnumfree += le32_to_cpu(iagp->nfreeinos); in diExtendFS()
2946 if (le32_to_cpu(iagp->nfreeexts) > 0) { in diExtendFS()
2947 if ((head = imap->im_agctl[n].extfree) == -1) { in diExtendFS()
2948 iagp->extfreefwd = cpu_to_le32(-1); in diExtendFS()
2949 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2951 if ((rc = diIAGRead(imap, head, &hbp))) { in diExtendFS()
2952 rcx = rc; in diExtendFS()
2955 hiagp = (struct iag *) hbp->data; in diExtendFS()
2956 hiagp->extfreeback = iagp->iagnum; in diExtendFS()
2957 iagp->extfreefwd = cpu_to_le32(head); in diExtendFS()
2958 iagp->extfreeback = cpu_to_le32(-1); in diExtendFS()
2962 imap->im_agctl[n].extfree = in diExtendFS()
2963 le32_to_cpu(iagp->iagnum); in diExtendFS()
2970 if (xnuminos != atomic_read(&imap->im_numinos) || in diExtendFS()
2971 xnumfree != atomic_read(&imap->im_numfree)) { in diExtendFS()
2972 jfs_error(ipimap->i_sb, "numinos or numfree incorrect\n"); in diExtendFS()
2973 return -EIO; in diExtendFS()
2996 if (JFS_SBI(sb)->mntflag & JFS_BAD_SAIT) /* s_flag */ in duplicateIXtree()
3000 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
3003 j_sb = (struct jfs_superblock *)bh->b_data; in duplicateIXtree()
3004 j_sb->s_flag |= cpu_to_le32(JFS_BAD_SAIT); in duplicateIXtree()
3014 /* update the inode map addressing structure to point to it */ in duplicateIXtree()
3016 JFS_SBI(sb)->mntflag |= JFS_BAD_SAIT; in duplicateIXtree()
3021 /* update the inode map's inode to reflect the extension */ in duplicateIXtree()
3022 ip->i_size += PSIZE; in duplicateIXtree()
3031 * NAME: copy_from_dinode()
3033 * FUNCTION: Copies inode info from disk inode to in-memory inode
3036 * 0 - success
3037 * -ENOMEM - insufficient memory
3042 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_from_dinode()
3044 jfs_ip->fileset = le32_to_cpu(dip->di_fileset); in copy_from_dinode()
3045 jfs_ip->mode2 = le32_to_cpu(dip->di_mode); in copy_from_dinode()
3048 ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; in copy_from_dinode()
3049 if (sbi->umask != -1) { in copy_from_dinode()
3050 ip->i_mode = (ip->i_mode & ~0777) | (0777 & ~sbi->umask); in copy_from_dinode()
3052 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3053 if (ip->i_mode & 0400) in copy_from_dinode()
3054 ip->i_mode |= 0100; in copy_from_dinode()
3055 if (ip->i_mode & 0040) in copy_from_dinode()
3056 ip->i_mode |= 0010; in copy_from_dinode()
3057 if (ip->i_mode & 0004) in copy_from_dinode()
3058 ip->i_mode |= 0001; in copy_from_dinode()
3061 set_nlink(ip, le32_to_cpu(dip->di_nlink)); in copy_from_dinode()
3063 jfs_ip->saved_uid = make_kuid(&init_user_ns, le32_to_cpu(dip->di_uid)); in copy_from_dinode()
3064 if (!uid_valid(sbi->uid)) in copy_from_dinode()
3065 ip->i_uid = jfs_ip->saved_uid; in copy_from_dinode()
3067 ip->i_uid = sbi->uid; in copy_from_dinode()
3070 jfs_ip->saved_gid = make_kgid(&init_user_ns, le32_to_cpu(dip->di_gid)); in copy_from_dinode()
3071 if (!gid_valid(sbi->gid)) in copy_from_dinode()
3072 ip->i_gid = jfs_ip->saved_gid; in copy_from_dinode()
3074 ip->i_gid = sbi->gid; in copy_from_dinode()
3077 ip->i_size = le64_to_cpu(dip->di_size); in copy_from_dinode()
3078 ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec); in copy_from_dinode()
3079 ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec); in copy_from_dinode()
3080 ip->i_mtime.tv_sec = le32_to_cpu(dip->di_mtime.tv_sec); in copy_from_dinode()
3081 ip->i_mtime.tv_nsec = le32_to_cpu(dip->di_mtime.tv_nsec); in copy_from_dinode()
3082 ip->i_ctime.tv_sec = le32_to_cpu(dip->di_ctime.tv_sec); in copy_from_dinode()
3083 ip->i_ctime.tv_nsec = le32_to_cpu(dip->di_ctime.tv_nsec); in copy_from_dinode()
3084 ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks)); in copy_from_dinode()
3085 ip->i_generation = le32_to_cpu(dip->di_gen); in copy_from_dinode()
3087 jfs_ip->ixpxd = dip->di_ixpxd; /* in-memory pxd's are little-endian */ in copy_from_dinode()
3088 jfs_ip->acl = dip->di_acl; /* as are dxd's */ in copy_from_dinode()
3089 jfs_ip->ea = dip->di_ea; in copy_from_dinode()
3090 jfs_ip->next_index = le32_to_cpu(dip->di_next_index); in copy_from_dinode()
3091 jfs_ip->otime = le32_to_cpu(dip->di_otime.tv_sec); in copy_from_dinode()
3092 jfs_ip->acltype = le32_to_cpu(dip->di_acltype); in copy_from_dinode()
3094 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { in copy_from_dinode()
3095 jfs_ip->dev = le32_to_cpu(dip->di_rdev); in copy_from_dinode()
3096 ip->i_rdev = new_decode_dev(jfs_ip->dev); in copy_from_dinode()
3099 if (S_ISDIR(ip->i_mode)) { in copy_from_dinode()
3100 memcpy(&jfs_ip->i_dirtable, &dip->di_dirtable, 384); in copy_from_dinode()
3101 } else if (S_ISREG(ip->i_mode) || S_ISLNK(ip->i_mode)) { in copy_from_dinode()
3102 memcpy(&jfs_ip->i_xtroot, &dip->di_xtroot, 288); in copy_from_dinode()
3104 memcpy(&jfs_ip->i_inline_ea, &dip->di_inlineea, 128); in copy_from_dinode()
3106 /* Zero the in-memory-only stuff */ in copy_from_dinode()
3107 jfs_ip->cflag = 0; in copy_from_dinode()
3108 jfs_ip->btindex = 0; in copy_from_dinode()
3109 jfs_ip->btorder = 0; in copy_from_dinode()
3110 jfs_ip->bxflag = 0; in copy_from_dinode()
3111 jfs_ip->blid = 0; in copy_from_dinode()
3112 jfs_ip->atlhead = 0; in copy_from_dinode()
3113 jfs_ip->atltail = 0; in copy_from_dinode()
3114 jfs_ip->xtlid = 0; in copy_from_dinode()
3119 * NAME: copy_to_dinode()
3121 * FUNCTION: Copies inode info from in-memory inode to disk inode
3126 struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); in copy_to_dinode()
3128 dip->di_fileset = cpu_to_le32(jfs_ip->fileset); in copy_to_dinode()
3129 dip->di_inostamp = cpu_to_le32(sbi->inostamp); in copy_to_dinode()
3130 dip->di_number = cpu_to_le32(ip->i_ino); in copy_to_dinode()
3131 dip->di_gen = cpu_to_le32(ip->i_generation); in copy_to_dinode()
3132 dip->di_size = cpu_to_le64(ip->i_size); in copy_to_dinode()
3133 dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); in copy_to_dinode()
3134 dip->di_nlink = cpu_to_le32(ip->i_nlink); in copy_to_dinode()
3135 if (!uid_valid(sbi->uid)) in copy_to_dinode()
3136 dip->di_uid = cpu_to_le32(i_uid_read(ip)); in copy_to_dinode()
3138 dip->di_uid =cpu_to_le32(from_kuid(&init_user_ns, in copy_to_dinode()
3139 jfs_ip->saved_uid)); in copy_to_dinode()
3140 if (!gid_valid(sbi->gid)) in copy_to_dinode()
3141 dip->di_gid = cpu_to_le32(i_gid_read(ip)); in copy_to_dinode()
3143 dip->di_gid = cpu_to_le32(from_kgid(&init_user_ns, in copy_to_dinode()
3144 jfs_ip->saved_gid)); in copy_to_dinode()
3149 if (sbi->umask == -1) in copy_to_dinode()
3150 dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | in copy_to_dinode()
3151 ip->i_mode); in copy_to_dinode()
3153 dip->di_mode = cpu_to_le32(jfs_ip->mode2); in copy_to_dinode()
3155 dip->di_atime.tv_sec = cpu_to_le32(ip->i_atime.tv_sec); in copy_to_dinode()
3156 dip->di_atime.tv_nsec = cpu_to_le32(ip->i_atime.tv_nsec); in copy_to_dinode()
3157 dip->di_ctime.tv_sec = cpu_to_le32(ip->i_ctime.tv_sec); in copy_to_dinode()
3158 dip->di_ctime.tv_nsec = cpu_to_le32(ip->i_ctime.tv_nsec); in copy_to_dinode()
3159 dip->di_mtime.tv_sec = cpu_to_le32(ip->i_mtime.tv_sec); in copy_to_dinode()
3160 dip->di_mtime.tv_nsec = cpu_to_le32(ip->i_mtime.tv_nsec); in copy_to_dinode()
3161 dip->di_ixpxd = jfs_ip->ixpxd; /* in-memory pxd's are little-endian */ in copy_to_dinode()
3162 dip->di_acl = jfs_ip->acl; /* as are dxd's */ in copy_to_dinode()
3163 dip->di_ea = jfs_ip->ea; in copy_to_dinode()
3164 dip->di_next_index = cpu_to_le32(jfs_ip->next_index); in copy_to_dinode()
3165 dip->di_otime.tv_sec = cpu_to_le32(jfs_ip->otime); in copy_to_dinode()
3166 dip->di_otime.tv_nsec = 0; in copy_to_dinode()
3167 dip->di_acltype = cpu_to_le32(jfs_ip->acltype); in copy_to_dinode()
3168 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) in copy_to_dinode()
3169 dip->di_rdev = cpu_to_le32(jfs_ip->dev); in copy_to_dinode()