X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_dir2_leaf.c;h=93535992cb60e79491b490f07e85a9338dfc0faf;hb=604323ca760beebf00a07153706dcbe7128324e0;hp=0ca0020ba09f0cd6c927d45d786712d80a87c2a1;hpb=6e5565f949af1322f8f3d3f43d044645ae448499;p=linux-2.6-omap-h63xx.git diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c index 0ca0020ba09..93535992cb6 100644 --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -263,20 +263,21 @@ xfs_dir2_leaf_addname( * If we don't have enough free bytes but we can make enough * by compacting out stale entries, we'll do that. */ - if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] < needbytes && - be16_to_cpu(leaf->hdr.stale) > 1) { + if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] < + needbytes && be16_to_cpu(leaf->hdr.stale) > 1) { compact = 1; } /* * Otherwise if we don't have enough free bytes we need to * convert to node form. */ - else if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] < - needbytes) { + else if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu( + leaf->hdr.count)] < needbytes) { /* * Just checking or no space reservation, give up. */ - if (args->justcheck || args->total == 0) { + if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || + args->total == 0) { xfs_da_brelse(tp, lbp); return XFS_ERROR(ENOSPC); } @@ -301,7 +302,7 @@ xfs_dir2_leaf_addname( * If just checking, then it will fit unless we needed to allocate * a new data block. */ - if (args->justcheck) { + if (args->op_flags & XFS_DA_OP_JUSTCHECK) { xfs_da_brelse(tp, lbp); return use_block == -1 ? XFS_ERROR(ENOSPC) : 0; } @@ -359,7 +360,7 @@ xfs_dir2_leaf_addname( bestsp--; memmove(&bestsp[0], &bestsp[1], be32_to_cpu(ltp->bestcount) * sizeof(bestsp[0])); - be32_add(<p->bestcount, 1); + be32_add_cpu(<p->bestcount, 1); xfs_dir2_leaf_log_tail(tp, lbp); xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1); } @@ -445,7 +446,7 @@ xfs_dir2_leaf_addname( */ lfloglow = index; lfloghigh = be16_to_cpu(leaf->hdr.count); - be16_add(&leaf->hdr.count, 1); + be16_add_cpu(&leaf->hdr.count, 1); } /* * There are stale entries. @@ -523,7 +524,7 @@ xfs_dir2_leaf_addname( lfloglow = MIN(index, lfloglow); lfloghigh = MAX(highstale, lfloghigh); } - be16_add(&leaf->hdr.stale, -1); + be16_add_cpu(&leaf->hdr.stale, -1); } /* * Fill in the new leaf entry. @@ -626,7 +627,7 @@ xfs_dir2_leaf_compact( * Update and log the header, log the leaf entries. */ ASSERT(be16_to_cpu(leaf->hdr.stale) == from - to); - be16_add(&leaf->hdr.count, -(be16_to_cpu(leaf->hdr.stale))); + be16_add_cpu(&leaf->hdr.count, -(be16_to_cpu(leaf->hdr.stale))); leaf->hdr.stale = 0; xfs_dir2_leaf_log_header(args->trans, bp); if (loglow != -1) @@ -728,7 +729,7 @@ xfs_dir2_leaf_compact_x1( /* * Adjust the leaf header values. */ - be16_add(&leaf->hdr.count, -(from - to)); + be16_add_cpu(&leaf->hdr.count, -(from - to)); leaf->hdr.stale = cpu_to_be16(1); /* * Remember the low/high stale value only in the "right" @@ -1110,7 +1111,7 @@ xfs_dir2_leaf_getdents( *offset = XFS_DIR2_MAX_DATAPTR; else *offset = xfs_dir2_byte_to_dataptr(mp, curoff); - kmem_free(map, map_size * sizeof(*map)); + kmem_free(map); if (bp) xfs_da_brelse(NULL, bp); return error; @@ -1298,12 +1299,13 @@ xfs_dir2_leaf_lookup( ((char *)dbp->data + xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address))); /* - * Return the found inode number. + * Return the found inode number & CI name if appropriate */ args->inumber = be64_to_cpu(dep->inumber); + error = xfs_dir_cilookup_result(args, dep->name, dep->namelen); xfs_da_brelse(tp, dbp); xfs_da_brelse(tp, lbp); - return XFS_ERROR(EEXIST); + return XFS_ERROR(error); } /* @@ -1319,8 +1321,8 @@ xfs_dir2_leaf_lookup_int( int *indexp, /* out: index in leaf block */ xfs_dabuf_t **dbpp) /* out: data buffer */ { - xfs_dir2_db_t curdb; /* current data block number */ - xfs_dabuf_t *dbp; /* data buffer */ + xfs_dir2_db_t curdb = -1; /* current data block number */ + xfs_dabuf_t *dbp = NULL; /* data buffer */ xfs_dir2_data_entry_t *dep; /* data entry */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ @@ -1331,6 +1333,8 @@ xfs_dir2_leaf_lookup_int( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_db_t newdb; /* new data block number */ xfs_trans_t *tp; /* transaction pointer */ + xfs_dir2_db_t cidb = -1; /* case match data block no. */ + enum xfs_dacmp cmp; /* name compare result */ dp = args->dp; tp = args->trans; @@ -1338,11 +1342,10 @@ xfs_dir2_leaf_lookup_int( /* * Read the leaf block into the buffer. */ - if ((error = - xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp, - XFS_DATA_FORK))) { + error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp, + XFS_DATA_FORK); + if (error) return error; - } *lbpp = lbp; leaf = lbp->data; xfs_dir2_leaf_check(dp, lbp); @@ -1354,9 +1357,9 @@ xfs_dir2_leaf_lookup_int( * Loop over all the entries with the right hash value * looking to match the name. */ - for (lep = &leaf->ents[index], dbp = NULL, curdb = -1; - index < be16_to_cpu(leaf->hdr.count) && be32_to_cpu(lep->hashval) == args->hashval; - lep++, index++) { + for (lep = &leaf->ents[index]; index < be16_to_cpu(leaf->hdr.count) && + be32_to_cpu(lep->hashval) == args->hashval; + lep++, index++) { /* * Skip over stale leaf entries. */ @@ -1373,10 +1376,10 @@ xfs_dir2_leaf_lookup_int( if (newdb != curdb) { if (dbp) xfs_da_brelse(tp, dbp); - if ((error = - xfs_da_read_buf(tp, dp, - xfs_dir2_db_to_da(mp, newdb), -1, &dbp, - XFS_DATA_FORK))) { + error = xfs_da_read_buf(tp, dp, + xfs_dir2_db_to_da(mp, newdb), + -1, &dbp, XFS_DATA_FORK); + if (error) { xfs_da_brelse(tp, lbp); return error; } @@ -1386,24 +1389,50 @@ xfs_dir2_leaf_lookup_int( /* * Point to the data entry. */ - dep = (xfs_dir2_data_entry_t *) - ((char *)dbp->data + - xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); + dep = (xfs_dir2_data_entry_t *)((char *)dbp->data + + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* - * If it matches then return it. + * Compare name and if it's an exact match, return the index + * and buffer. If it's the first case-insensitive match, store + * the index and buffer and continue looking for an exact match. */ - if (dep->namelen == args->namelen && - dep->name[0] == args->name[0] && - memcmp(dep->name, args->name, args->namelen) == 0) { - *dbpp = dbp; + cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen); + if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { + args->cmpresult = cmp; *indexp = index; - return 0; + /* case exact match: return the current buffer. */ + if (cmp == XFS_CMP_EXACT) { + *dbpp = dbp; + return 0; + } + cidb = curdb; } } + ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); + /* + * Here, we can only be doing a lookup (not a rename or remove). + * If a case-insensitive match was found earlier, re-read the + * appropriate data block if required and return it. + */ + if (args->cmpresult == XFS_CMP_CASE) { + ASSERT(cidb != -1); + if (cidb != curdb) { + xfs_da_brelse(tp, dbp); + error = xfs_da_read_buf(tp, dp, + xfs_dir2_db_to_da(mp, cidb), + -1, &dbp, XFS_DATA_FORK); + if (error) { + xfs_da_brelse(tp, lbp); + return error; + } + } + *dbpp = dbp; + return 0; + } /* * No match found, return ENOENT. */ - ASSERT(args->oknoent); + ASSERT(cidb == -1); if (dbp) xfs_da_brelse(tp, dbp); xfs_da_brelse(tp, lbp); @@ -1470,7 +1499,7 @@ xfs_dir2_leaf_removename( /* * We just mark the leaf entry stale by putting a null in it. */ - be16_add(&leaf->hdr.stale, 1); + be16_add_cpu(&leaf->hdr.stale, 1); xfs_dir2_leaf_log_header(tp, lbp); lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR); xfs_dir2_leaf_log_ents(tp, lbp, index, index); @@ -1531,7 +1560,7 @@ xfs_dir2_leaf_removename( */ memmove(&bestsp[db - i], bestsp, (be32_to_cpu(ltp->bestcount) - (db - i)) * sizeof(*bestsp)); - be32_add(<p->bestcount, -(db - i)); + be32_add_cpu(<p->bestcount, -(db - i)); xfs_dir2_leaf_log_tail(tp, lbp); xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1); } else @@ -1712,7 +1741,7 @@ xfs_dir2_leaf_trim_data( * Eliminate the last bests entry from the table. */ bestsp = xfs_dir2_leaf_bests_p(ltp); - be32_add(<p->bestcount, -1); + be32_add_cpu(<p->bestcount, -1); memmove(&bestsp[1], &bestsp[0], be32_to_cpu(ltp->bestcount) * sizeof(*bestsp)); xfs_dir2_leaf_log_tail(tp, lbp); xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);