X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_dir2_leaf.c;h=0ca0020ba09f0cd6c927d45d786712d80a87c2a1;hb=26808d3f10b1213bbb6e27d441be40e20ab84611;hp=db14ea71459f0c8086e00e0d26c40498cf845da8;hpb=2c4f365ad2361c93c097e958b2b0a7a112750228;p=powerpc.git diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c index db14ea7145..0ca0020ba0 100644 --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -92,7 +92,7 @@ xfs_dir2_block_to_leaf( if ((error = xfs_da_grow_inode(args, &blkno))) { return error; } - ldb = XFS_DIR2_DA_TO_DB(mp, blkno); + ldb = xfs_dir2_da_to_db(mp, blkno); ASSERT(ldb == XFS_DIR2_LEAF_FIRSTDB(mp)); /* * Initialize the leaf block, get a buffer for it. @@ -104,8 +104,8 @@ xfs_dir2_block_to_leaf( leaf = lbp->data; block = dbp->data; xfs_dir2_data_check(dp, dbp); - btp = XFS_DIR2_BLOCK_TAIL_P(mp, block); - blp = XFS_DIR2_BLOCK_LEAF_P(btp); + btp = xfs_dir2_block_tail_p(mp, block); + blp = xfs_dir2_block_leaf_p(btp); /* * Set the counts in the leaf header. */ @@ -137,9 +137,9 @@ xfs_dir2_block_to_leaf( /* * Set up leaf tail and bests table. */ - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); ltp->bestcount = cpu_to_be32(1); - bestsp = XFS_DIR2_LEAF_BESTS_P(ltp); + bestsp = xfs_dir2_leaf_bests_p(ltp); bestsp[0] = block->hdr.bestfree[0].length; /* * Log the data header and leaf bests table. @@ -209,9 +209,9 @@ xfs_dir2_leaf_addname( */ index = xfs_dir2_leaf_search_hash(args, lbp); leaf = lbp->data; - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); - bestsp = XFS_DIR2_LEAF_BESTS_P(ltp); - length = XFS_DIR2_DATA_ENTSIZE(args->namelen); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); + bestsp = xfs_dir2_leaf_bests_p(ltp); + length = xfs_dir2_data_entsize(args->namelen); /* * See if there are any entries with the same hash value * and space in their block for the new entry. @@ -223,7 +223,7 @@ xfs_dir2_leaf_addname( index++, lep++) { if (be32_to_cpu(lep->address) == XFS_DIR2_NULL_DATAPTR) continue; - i = XFS_DIR2_DATAPTR_TO_DB(mp, be32_to_cpu(lep->address)); + i = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address)); ASSERT(i < be32_to_cpu(ltp->bestcount)); ASSERT(be16_to_cpu(bestsp[i]) != NULLDATAOFF); if (be16_to_cpu(bestsp[i]) >= length) { @@ -378,7 +378,7 @@ xfs_dir2_leaf_addname( */ else { if ((error = - xfs_da_read_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, use_block), + xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, use_block), -1, &dbp, XFS_DATA_FORK))) { xfs_da_brelse(tp, lbp); return error; @@ -407,7 +407,7 @@ xfs_dir2_leaf_addname( dep->inumber = cpu_to_be64(args->inumber); dep->namelen = args->namelen; memcpy(dep->name, args->name, dep->namelen); - tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep); + tagp = xfs_dir2_data_entry_tag_p(dep); *tagp = cpu_to_be16((char *)dep - (char *)data); /* * Need to scan fix up the bestfree table. @@ -529,7 +529,7 @@ xfs_dir2_leaf_addname( * Fill in the new leaf entry. */ lep->hashval = cpu_to_be32(args->hashval); - lep->address = cpu_to_be32(XFS_DIR2_DB_OFF_TO_DATAPTR(mp, use_block, + lep->address = cpu_to_be32(xfs_dir2_db_off_to_dataptr(mp, use_block, be16_to_cpu(*tagp))); /* * Log the leaf fields and give up the buffers. @@ -567,13 +567,13 @@ xfs_dir2_leaf_check( * Should factor in the size of the bests table as well. * We can deduce a value for that from di_size. */ - ASSERT(be16_to_cpu(leaf->hdr.count) <= XFS_DIR2_MAX_LEAF_ENTS(mp)); - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); + ASSERT(be16_to_cpu(leaf->hdr.count) <= xfs_dir2_max_leaf_ents(mp)); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); /* * Leaves and bests don't overlap. */ ASSERT((char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] <= - (char *)XFS_DIR2_LEAF_BESTS_P(ltp)); + (char *)xfs_dir2_leaf_bests_p(ltp)); /* * Check hash value order, count stale entries. */ @@ -749,12 +749,11 @@ xfs_dir2_leaf_compact_x1( */ int /* error */ xfs_dir2_leaf_getdents( - xfs_trans_t *tp, /* transaction pointer */ xfs_inode_t *dp, /* incore directory inode */ - uio_t *uio, /* I/O control & vectors */ - int *eofp, /* out: reached end of dir */ - xfs_dirent_t *dbp, /* caller's buffer */ - xfs_dir2_put_t put) /* ABI formatting routine */ + void *dirent, + size_t bufsize, + xfs_off_t *offset, + filldir_t filldir) { xfs_dabuf_t *bp; /* data block buffer */ int byteoff; /* offset in current block */ @@ -763,7 +762,6 @@ xfs_dir2_leaf_getdents( xfs_dir2_data_t *data; /* data block structure */ xfs_dir2_data_entry_t *dep; /* data entry */ xfs_dir2_data_unused_t *dup; /* unused entry */ - int eof; /* reached end of directory */ int error = 0; /* error return value */ int i; /* temporary loop index */ int j; /* temporary loop index */ @@ -776,51 +774,43 @@ xfs_dir2_leaf_getdents( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_off_t newoff; /* new curoff after new blk */ int nmap; /* mappings to ask xfs_bmapi */ - xfs_dir2_put_args_t *p; /* formatting arg bundle */ char *ptr = NULL; /* pointer to current data */ int ra_current; /* number of read-ahead blks */ int ra_index; /* *map index for read-ahead */ int ra_offset; /* map entry offset for ra */ int ra_want; /* readahead count wanted */ + xfs_ino_t ino; /* * If the offset is at or past the largest allowed value, - * give up right away, return eof. + * give up right away. */ - if (uio->uio_offset >= XFS_DIR2_MAX_DATAPTR) { - *eofp = 1; + if (*offset >= XFS_DIR2_MAX_DATAPTR) return 0; - } + mp = dp->i_mount; - /* - * Setup formatting arguments. - */ - p = kmem_alloc(sizeof(*p), KM_SLEEP); - p->dbp = dbp; - p->put = put; - p->uio = uio; + /* * Set up to bmap a number of blocks based on the caller's * buffer size, the directory block size, and the filesystem * block size. */ - map_size = - howmany(uio->uio_resid + mp->m_dirblksize, - mp->m_sb.sb_blocksize); + map_size = howmany(bufsize + mp->m_dirblksize, mp->m_sb.sb_blocksize); map = kmem_alloc(map_size * sizeof(*map), KM_SLEEP); map_valid = ra_index = ra_offset = ra_current = map_blocks = 0; bp = NULL; - eof = 1; + /* * Inside the loop we keep the main offset value as a byte offset * in the directory file. */ - curoff = XFS_DIR2_DATAPTR_TO_BYTE(mp, uio->uio_offset); + curoff = xfs_dir2_dataptr_to_byte(mp, *offset); + /* * Force this conversion through db so we truncate the offset * down to get the start of the data block. */ - map_off = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_BYTE_TO_DB(mp, curoff)); + map_off = xfs_dir2_db_to_da(mp, xfs_dir2_byte_to_db(mp, curoff)); /* * Loop over directory entries until we reach the end offset. * Get more blocks and readahead as necessary. @@ -836,7 +826,7 @@ xfs_dir2_leaf_getdents( * take it out of the mapping. */ if (bp) { - xfs_da_brelse(tp, bp); + xfs_da_brelse(NULL, bp); bp = NULL; map_blocks -= mp->m_dirblkfsbs; /* @@ -862,23 +852,24 @@ xfs_dir2_leaf_getdents( /* * Recalculate the readahead blocks wanted. */ - ra_want = howmany(uio->uio_resid + mp->m_dirblksize, + ra_want = howmany(bufsize + mp->m_dirblksize, mp->m_sb.sb_blocksize) - 1; + /* * If we don't have as many as we want, and we haven't * run out of data blocks, get some more mappings. */ if (1 + ra_want > map_blocks && map_off < - XFS_DIR2_BYTE_TO_DA(mp, XFS_DIR2_LEAF_OFFSET)) { + xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET)) { /* * Get more bmaps, fill in after the ones * we already have in the table. */ nmap = map_size - map_valid; - error = xfs_bmapi(tp, dp, + error = xfs_bmapi(NULL, dp, map_off, - XFS_DIR2_BYTE_TO_DA(mp, + xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET) - map_off, XFS_BMAPI_METADATA, NULL, 0, &map[map_valid], &nmap, NULL, NULL); @@ -903,7 +894,7 @@ xfs_dir2_leaf_getdents( map[map_valid + nmap - 1].br_blockcount; else map_off = - XFS_DIR2_BYTE_TO_DA(mp, + xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET); /* * Look for holes in the mapping, and @@ -931,15 +922,15 @@ xfs_dir2_leaf_getdents( * No valid mappings, so no more data blocks. */ if (!map_valid) { - curoff = XFS_DIR2_DA_TO_BYTE(mp, map_off); + curoff = xfs_dir2_da_to_byte(mp, map_off); break; } /* * Read the directory block starting at the first * mapping. */ - curdb = XFS_DIR2_DA_TO_DB(mp, map->br_startoff); - error = xfs_da_read_buf(tp, dp, map->br_startoff, + curdb = xfs_dir2_da_to_db(mp, map->br_startoff); + error = xfs_da_read_buf(NULL, dp, map->br_startoff, map->br_blockcount >= mp->m_dirblkfsbs ? XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1, @@ -982,7 +973,7 @@ xfs_dir2_leaf_getdents( * is a very rare case. */ else if (i > ra_current) { - (void)xfs_da_reada_buf(tp, dp, + (void)xfs_da_reada_buf(NULL, dp, map[ra_index].br_startoff + ra_offset, XFS_DATA_FORK); ra_current = i; @@ -1014,7 +1005,7 @@ xfs_dir2_leaf_getdents( /* * Having done a read, we need to set a new offset. */ - newoff = XFS_DIR2_DB_OFF_TO_BYTE(mp, curdb, 0); + newoff = xfs_dir2_db_off_to_byte(mp, curdb, 0); /* * Start of the current block. */ @@ -1024,7 +1015,7 @@ xfs_dir2_leaf_getdents( * Make sure we're in the right block. */ else if (curoff > newoff) - ASSERT(XFS_DIR2_BYTE_TO_DB(mp, curoff) == + ASSERT(xfs_dir2_byte_to_db(mp, curoff) == curdb); data = bp->data; xfs_dir2_data_check(dp, bp); @@ -1032,7 +1023,7 @@ xfs_dir2_leaf_getdents( * Find our position in the block. */ ptr = (char *)&data->u; - byteoff = XFS_DIR2_BYTE_TO_OFF(mp, curoff); + byteoff = xfs_dir2_byte_to_off(mp, curoff); /* * Skip past the header. */ @@ -1054,15 +1045,15 @@ xfs_dir2_leaf_getdents( } dep = (xfs_dir2_data_entry_t *)ptr; length = - XFS_DIR2_DATA_ENTSIZE(dep->namelen); + xfs_dir2_data_entsize(dep->namelen); ptr += length; } /* * Now set our real offset. */ curoff = - XFS_DIR2_DB_OFF_TO_BYTE(mp, - XFS_DIR2_BYTE_TO_DB(mp, curoff), + xfs_dir2_db_off_to_byte(mp, + xfs_dir2_byte_to_db(mp, curoff), (char *)ptr - (char *)data); if (ptr >= (char *)data + mp->m_dirblksize) { continue; @@ -1089,46 +1080,39 @@ xfs_dir2_leaf_getdents( */ dep = (xfs_dir2_data_entry_t *)ptr; - p->namelen = dep->namelen; - - length = XFS_DIR2_DATA_ENTSIZE(p->namelen); - - p->cook = XFS_DIR2_BYTE_TO_DATAPTR(mp, curoff + length); + length = xfs_dir2_data_entsize(dep->namelen); - p->ino = be64_to_cpu(dep->inumber); + ino = be64_to_cpu(dep->inumber); #if XFS_BIG_INUMS - p->ino += mp->m_inoadd; + ino += mp->m_inoadd; #endif - p->name = (char *)dep->name; - - error = p->put(p); /* * Won't fit. Return to caller. */ - if (!p->done) { - eof = 0; + if (filldir(dirent, dep->name, dep->namelen, + xfs_dir2_byte_to_dataptr(mp, curoff), + ino, DT_UNKNOWN)) break; - } + /* * Advance to next entry in the block. */ ptr += length; curoff += length; + bufsize -= length; } /* * All done. Set output offset value to current offset. */ - *eofp = eof; - if (curoff > XFS_DIR2_DATAPTR_TO_BYTE(mp, XFS_DIR2_MAX_DATAPTR)) - uio->uio_offset = XFS_DIR2_MAX_DATAPTR; + if (curoff > xfs_dir2_dataptr_to_byte(mp, XFS_DIR2_MAX_DATAPTR)) + *offset = XFS_DIR2_MAX_DATAPTR; else - uio->uio_offset = XFS_DIR2_BYTE_TO_DATAPTR(mp, curoff); + *offset = xfs_dir2_byte_to_dataptr(mp, curoff); kmem_free(map, map_size * sizeof(*map)); - kmem_free(p, sizeof(*p)); if (bp) - xfs_da_brelse(tp, bp); + xfs_da_brelse(NULL, bp); return error; } @@ -1159,7 +1143,7 @@ xfs_dir2_leaf_init( /* * Get the buffer for the block. */ - error = xfs_da_get_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, bno), -1, &bp, + error = xfs_da_get_buf(tp, dp, xfs_dir2_db_to_da(mp, bno), -1, &bp, XFS_DATA_FORK); if (error) { return error; @@ -1181,7 +1165,7 @@ xfs_dir2_leaf_init( * the block. */ if (magic == XFS_DIR2_LEAF1_MAGIC) { - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); ltp->bestcount = 0; xfs_dir2_leaf_log_tail(tp, bp); } @@ -1206,9 +1190,9 @@ xfs_dir2_leaf_log_bests( leaf = bp->data; ASSERT(be16_to_cpu(leaf->hdr.info.magic) == XFS_DIR2_LEAF1_MAGIC); - ltp = XFS_DIR2_LEAF_TAIL_P(tp->t_mountp, leaf); - firstb = XFS_DIR2_LEAF_BESTS_P(ltp) + first; - lastb = XFS_DIR2_LEAF_BESTS_P(ltp) + last; + ltp = xfs_dir2_leaf_tail_p(tp->t_mountp, leaf); + firstb = xfs_dir2_leaf_bests_p(ltp) + first; + lastb = xfs_dir2_leaf_bests_p(ltp) + last; xfs_da_log_buf(tp, bp, (uint)((char *)firstb - (char *)leaf), (uint)((char *)lastb - (char *)leaf + sizeof(*lastb) - 1)); } @@ -1268,7 +1252,7 @@ xfs_dir2_leaf_log_tail( mp = tp->t_mountp; leaf = bp->data; ASSERT(be16_to_cpu(leaf->hdr.info.magic) == XFS_DIR2_LEAF1_MAGIC); - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); xfs_da_log_buf(tp, bp, (uint)((char *)ltp - (char *)leaf), (uint)(mp->m_dirblksize - 1)); } @@ -1312,7 +1296,7 @@ xfs_dir2_leaf_lookup( */ dep = (xfs_dir2_data_entry_t *) ((char *)dbp->data + - XFS_DIR2_DATAPTR_TO_OFF(dp->i_mount, be32_to_cpu(lep->address))); + xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address))); /* * Return the found inode number. */ @@ -1381,7 +1365,7 @@ xfs_dir2_leaf_lookup_int( /* * Get the new data block number. */ - newdb = XFS_DIR2_DATAPTR_TO_DB(mp, be32_to_cpu(lep->address)); + newdb = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address)); /* * If it's not the same as the old data block number, * need to pitch the old one and read the new one. @@ -1391,7 +1375,7 @@ xfs_dir2_leaf_lookup_int( xfs_da_brelse(tp, dbp); if ((error = xfs_da_read_buf(tp, dp, - XFS_DIR2_DB_TO_DA(mp, newdb), -1, &dbp, + xfs_dir2_db_to_da(mp, newdb), -1, &dbp, XFS_DATA_FORK))) { xfs_da_brelse(tp, lbp); return error; @@ -1404,7 +1388,7 @@ xfs_dir2_leaf_lookup_int( */ dep = (xfs_dir2_data_entry_t *) ((char *)dbp->data + - XFS_DIR2_DATAPTR_TO_OFF(mp, be32_to_cpu(lep->address))); + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* * If it matches then return it. */ @@ -1469,20 +1453,20 @@ xfs_dir2_leaf_removename( * Point to the leaf entry, use that to point to the data entry. */ lep = &leaf->ents[index]; - db = XFS_DIR2_DATAPTR_TO_DB(mp, be32_to_cpu(lep->address)); + db = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address)); dep = (xfs_dir2_data_entry_t *) - ((char *)data + XFS_DIR2_DATAPTR_TO_OFF(mp, be32_to_cpu(lep->address))); + ((char *)data + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); needscan = needlog = 0; oldbest = be16_to_cpu(data->hdr.bestfree[0].length); - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); - bestsp = XFS_DIR2_LEAF_BESTS_P(ltp); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); + bestsp = xfs_dir2_leaf_bests_p(ltp); ASSERT(be16_to_cpu(bestsp[db]) == oldbest); /* * Mark the former data entry unused. */ xfs_dir2_data_make_free(tp, dbp, (xfs_dir2_data_aoff_t)((char *)dep - (char *)data), - XFS_DIR2_DATA_ENTSIZE(dep->namelen), &needlog, &needscan); + xfs_dir2_data_entsize(dep->namelen), &needlog, &needscan); /* * We just mark the leaf entry stale by putting a null in it. */ @@ -1602,7 +1586,7 @@ xfs_dir2_leaf_replace( */ dep = (xfs_dir2_data_entry_t *) ((char *)dbp->data + - XFS_DIR2_DATAPTR_TO_OFF(dp->i_mount, be32_to_cpu(lep->address))); + xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address))); ASSERT(args->inumber != be64_to_cpu(dep->inumber)); /* * Put the new inode number in, log it. @@ -1698,7 +1682,7 @@ xfs_dir2_leaf_trim_data( /* * Read the offending data block. We need its buffer. */ - if ((error = xfs_da_read_buf(tp, dp, XFS_DIR2_DB_TO_DA(mp, db), -1, &dbp, + if ((error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, db), -1, &dbp, XFS_DATA_FORK))) { return error; } @@ -1712,7 +1696,7 @@ xfs_dir2_leaf_trim_data( */ leaf = lbp->data; - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); ASSERT(be16_to_cpu(data->hdr.bestfree[0].length) == mp->m_dirblksize - (uint)sizeof(data->hdr)); ASSERT(db == be32_to_cpu(ltp->bestcount) - 1); @@ -1727,7 +1711,7 @@ xfs_dir2_leaf_trim_data( /* * Eliminate the last bests entry from the table. */ - bestsp = XFS_DIR2_LEAF_BESTS_P(ltp); + bestsp = xfs_dir2_leaf_bests_p(ltp); be32_add(<p->bestcount, -1); memmove(&bestsp[1], &bestsp[0], be32_to_cpu(ltp->bestcount) * sizeof(*bestsp)); xfs_dir2_leaf_log_tail(tp, lbp); @@ -1838,12 +1822,12 @@ xfs_dir2_node_to_leaf( /* * Set up the leaf tail from the freespace block. */ - ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf); + ltp = xfs_dir2_leaf_tail_p(mp, leaf); ltp->bestcount = free->hdr.nvalid; /* * Set up the leaf bests table. */ - memcpy(XFS_DIR2_LEAF_BESTS_P(ltp), free->bests, + memcpy(xfs_dir2_leaf_bests_p(ltp), free->bests, be32_to_cpu(ltp->bestcount) * sizeof(leaf->bests[0])); xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1); xfs_dir2_leaf_log_tail(tp, lbp);