diff options
Diffstat (limited to 'fs/xfs/xfs_dir2_leaf.c')
| -rw-r--r-- | fs/xfs/xfs_dir2_leaf.c | 621 |
1 files changed, 321 insertions, 300 deletions
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c index 397ffbcbab1..0b296253bd0 100644 --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -38,15 +38,15 @@ * Local function declarations. */ #ifdef DEBUG -static void xfs_dir2_leaf_check(xfs_inode_t *dp, xfs_dabuf_t *bp); +static void xfs_dir2_leaf_check(struct xfs_inode *dp, struct xfs_buf *bp); #else #define xfs_dir2_leaf_check(dp, bp) #endif -static int xfs_dir2_leaf_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **lbpp, - int *indexp, xfs_dabuf_t **dbpp); -static void xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp, +static int xfs_dir2_leaf_lookup_int(xfs_da_args_t *args, struct xfs_buf **lbpp, + int *indexp, struct xfs_buf **dbpp); +static void xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_buf *bp, int first, int last); -static void xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp); +static void xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_buf *bp); /* @@ -55,7 +55,7 @@ static void xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp); int /* error */ xfs_dir2_block_to_leaf( xfs_da_args_t *args, /* operation arguments */ - xfs_dabuf_t *dbp) /* input block's buffer */ + struct xfs_buf *dbp) /* input block's buffer */ { __be16 *bestsp; /* leaf's bestsp entries */ xfs_dablk_t blkno; /* leaf block's bno */ @@ -64,7 +64,7 @@ xfs_dir2_block_to_leaf( xfs_dir2_block_tail_t *btp; /* block's tail */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ - xfs_dabuf_t *lbp; /* leaf block's buffer */ + struct xfs_buf *lbp; /* leaf block's buffer */ xfs_dir2_db_t ldb; /* leaf block's bno */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_tail_t *ltp; /* leaf's tail */ @@ -95,8 +95,8 @@ xfs_dir2_block_to_leaf( return error; } ASSERT(lbp != NULL); - leaf = lbp->data; - hdr = dbp->data; + leaf = lbp->b_addr; + hdr = dbp->b_addr; xfs_dir2_data_check(dp, dbp); btp = xfs_dir2_block_tail_p(mp, hdr); blp = xfs_dir2_block_leaf_p(btp); @@ -143,7 +143,6 @@ xfs_dir2_block_to_leaf( xfs_dir2_leaf_check(dp, lbp); xfs_dir2_data_check(dp, dbp); xfs_dir2_leaf_log_bests(tp, lbp, 0, 0); - xfs_da_buf_done(lbp); return 0; } @@ -282,7 +281,7 @@ xfs_dir2_leaf_addname( __be16 *bestsp; /* freespace table in leaf */ int compact; /* need to compact leaves */ xfs_dir2_data_hdr_t *hdr; /* data block header */ - xfs_dabuf_t *dbp; /* data block buffer */ + struct xfs_buf *dbp; /* data block buffer */ xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ xfs_dir2_data_unused_t *dup; /* data unused entry */ @@ -291,7 +290,7 @@ xfs_dir2_leaf_addname( int highstale; /* index of next stale leaf */ int i; /* temporary, index */ int index; /* leaf table position */ - xfs_dabuf_t *lbp; /* leaf's buffer */ + struct xfs_buf *lbp; /* leaf's buffer */ xfs_dir2_leaf_t *leaf; /* leaf structure */ int length; /* length of new entry */ xfs_dir2_leaf_entry_t *lep; /* leaf entry table pointer */ @@ -328,7 +327,7 @@ xfs_dir2_leaf_addname( * But if there are dup hash values the index is of the first of those. */ index = xfs_dir2_leaf_search_hash(args, lbp); - leaf = lbp->data; + leaf = lbp->b_addr; ltp = xfs_dir2_leaf_tail_p(mp, leaf); bestsp = xfs_dir2_leaf_bests_p(ltp); length = xfs_dir2_data_entsize(args->namelen); @@ -402,14 +401,13 @@ xfs_dir2_leaf_addname( */ if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0) { - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return XFS_ERROR(ENOSPC); } /* * Convert to node form. */ error = xfs_dir2_leaf_to_node(args, lbp); - xfs_da_buf_done(lbp); if (error) return error; /* @@ -427,7 +425,7 @@ xfs_dir2_leaf_addname( * a new data block. */ if (args->op_flags & XFS_DA_OP_JUSTCHECK) { - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return use_block == -1 ? XFS_ERROR(ENOSPC) : 0; } /* @@ -435,7 +433,7 @@ xfs_dir2_leaf_addname( * changed anything. */ if (args->total == 0 && use_block == -1) { - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return XFS_ERROR(ENOSPC); } /* @@ -466,14 +464,14 @@ xfs_dir2_leaf_addname( */ if ((error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE, &use_block))) { - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return error; } /* * Initialize the block. */ if ((error = xfs_dir2_data_init(args, use_block, &dbp))) { - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return error; } /* @@ -493,7 +491,7 @@ xfs_dir2_leaf_addname( */ else xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block); - hdr = dbp->data; + hdr = dbp->b_addr; bestsp[use_block] = hdr->bestfree[0].length; grown = 1; } @@ -505,10 +503,10 @@ xfs_dir2_leaf_addname( if ((error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, use_block), -1, &dbp, XFS_DATA_FORK))) { - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return error; } - hdr = dbp->data; + hdr = dbp->b_addr; grown = 0; } xfs_dir2_data_check(dp, dbp); @@ -570,9 +568,7 @@ xfs_dir2_leaf_addname( xfs_dir2_leaf_log_header(tp, lbp); xfs_dir2_leaf_log_ents(tp, lbp, lfloglow, lfloghigh); xfs_dir2_leaf_check(dp, lbp); - xfs_da_buf_done(lbp); xfs_dir2_data_check(dp, dbp); - xfs_da_buf_done(dbp); return 0; } @@ -583,8 +579,8 @@ xfs_dir2_leaf_addname( */ STATIC void xfs_dir2_leaf_check( - xfs_inode_t *dp, /* incore directory inode */ - xfs_dabuf_t *bp) /* leaf's buffer */ + struct xfs_inode *dp, /* incore directory inode */ + struct xfs_buf *bp) /* leaf's buffer */ { int i; /* leaf index */ xfs_dir2_leaf_t *leaf; /* leaf structure */ @@ -592,7 +588,7 @@ xfs_dir2_leaf_check( xfs_mount_t *mp; /* filesystem mount point */ int stale; /* count of stale leaves */ - leaf = bp->data; + leaf = bp->b_addr; mp = dp->i_mount; ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC)); /* @@ -628,14 +624,14 @@ xfs_dir2_leaf_check( void xfs_dir2_leaf_compact( xfs_da_args_t *args, /* operation arguments */ - xfs_dabuf_t *bp) /* leaf buffer */ + struct xfs_buf *bp) /* leaf buffer */ { int from; /* source leaf index */ xfs_dir2_leaf_t *leaf; /* leaf structure */ int loglow; /* first leaf entry to log */ int to; /* target leaf index */ - leaf = bp->data; + leaf = bp->b_addr; if (!leaf->hdr.stale) { return; } @@ -677,7 +673,7 @@ xfs_dir2_leaf_compact( */ void xfs_dir2_leaf_compact_x1( - xfs_dabuf_t *bp, /* leaf buffer */ + struct xfs_buf *bp, /* leaf buffer */ int *indexp, /* insertion index */ int *lowstalep, /* out: stale entry before us */ int *highstalep, /* out: stale entry after us */ @@ -693,7 +689,7 @@ xfs_dir2_leaf_compact_x1( int newindex=0; /* new insertion index */ int to; /* destination copy index */ - leaf = bp->data; + leaf = bp->b_addr; ASSERT(be16_to_cpu(leaf->hdr.stale) > 1); index = *indexp; @@ -763,6 +759,218 @@ xfs_dir2_leaf_compact_x1( *highstalep = highstale; } +struct xfs_dir2_leaf_map_info { + xfs_extlen_t map_blocks; /* number of fsbs in map */ + xfs_dablk_t map_off; /* last mapped file offset */ + int map_size; /* total entries in *map */ + int map_valid; /* valid entries in *map */ + int nmap; /* mappings to ask xfs_bmapi */ + xfs_dir2_db_t curdb; /* db for current block */ + 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 */ + struct xfs_bmbt_irec map[]; /* map vector for blocks */ +}; + +STATIC int +xfs_dir2_leaf_readbuf( + struct xfs_inode *dp, + size_t bufsize, + struct xfs_dir2_leaf_map_info *mip, + xfs_dir2_off_t *curoff, + struct xfs_buf **bpp) +{ + struct xfs_mount *mp = dp->i_mount; + struct xfs_buf *bp = *bpp; + struct xfs_bmbt_irec *map = mip->map; + int error = 0; + int length; + int i; + int j; + + /* + * If we have a buffer, we need to release it and + * take it out of the mapping. + */ + + if (bp) { + xfs_trans_brelse(NULL, bp); + bp = NULL; + mip->map_blocks -= mp->m_dirblkfsbs; + /* + * Loop to get rid of the extents for the + * directory block. + */ + for (i = mp->m_dirblkfsbs; i > 0; ) { + j = min_t(int, map->br_blockcount, i); + map->br_blockcount -= j; + map->br_startblock += j; + map->br_startoff += j; + /* + * If mapping is done, pitch it from + * the table. + */ + if (!map->br_blockcount && --mip->map_valid) + memmove(&map[0], &map[1], + sizeof(map[0]) * mip->map_valid); + i -= j; + } + } + + /* + * Recalculate the readahead blocks wanted. + */ + mip->ra_want = howmany(bufsize + mp->m_dirblksize, + mp->m_sb.sb_blocksize) - 1; + ASSERT(mip->ra_want >= 0); + + /* + * 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 + mip->ra_want > mip->map_blocks && + mip->map_off < xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET)) { + /* + * Get more bmaps, fill in after the ones + * we already have in the table. + */ + mip->nmap = mip->map_size - mip->map_valid; + error = xfs_bmapi_read(dp, mip->map_off, + xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET) - + mip->map_off, + &map[mip->map_valid], &mip->nmap, 0); + + /* + * Don't know if we should ignore this or try to return an + * error. The trouble with returning errors is that readdir + * will just stop without actually passing the error through. + */ + if (error) + goto out; /* XXX */ + + /* + * If we got all the mappings we asked for, set the final map + * offset based on the last bmap value received. Otherwise, + * we've reached the end. + */ + if (mip->nmap == mip->map_size - mip->map_valid) { + i = mip->map_valid + mip->nmap - 1; + mip->map_off = map[i].br_startoff + map[i].br_blockcount; + } else + mip->map_off = xfs_dir2_byte_to_da(mp, + XFS_DIR2_LEAF_OFFSET); + + /* + * Look for holes in the mapping, and eliminate them. Count up + * the valid blocks. + */ + for (i = mip->map_valid; i < mip->map_valid + mip->nmap; ) { + if (map[i].br_startblock == HOLESTARTBLOCK) { + mip->nmap--; + length = mip->map_valid + mip->nmap - i; + if (length) + memmove(&map[i], &map[i + 1], + sizeof(map[i]) * length); + } else { + mip->map_blocks += map[i].br_blockcount; + i++; + } + } + mip->map_valid += mip->nmap; + } + + /* + * No valid mappings, so no more data blocks. + */ + if (!mip->map_valid) { + *curoff = xfs_dir2_da_to_byte(mp, mip->map_off); + goto out; + } + + /* + * Read the directory block starting at the first mapping. + */ + mip->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, + &bp, XFS_DATA_FORK); + + /* + * Should just skip over the data block instead of giving up. + */ + if (error) + goto out; /* XXX */ + + /* + * Adjust the current amount of read-ahead: we just read a block that + * was previously ra. + */ + if (mip->ra_current) + mip->ra_current -= mp->m_dirblkfsbs; + + /* + * Do we need more readahead? + */ + for (mip->ra_index = mip->ra_offset = i = 0; + mip->ra_want > mip->ra_current && i < mip->map_blocks; + i += mp->m_dirblkfsbs) { + ASSERT(mip->ra_index < mip->map_valid); + /* + * Read-ahead a contiguous directory block. + */ + if (i > mip->ra_current && + map[mip->ra_index].br_blockcount >= mp->m_dirblkfsbs) { + xfs_buf_readahead(mp->m_ddev_targp, + XFS_FSB_TO_DADDR(mp, + map[mip->ra_index].br_startblock + + mip->ra_offset), + (int)BTOBB(mp->m_dirblksize)); + mip->ra_current = i; + } + + /* + * Read-ahead a non-contiguous directory block. This doesn't + * use our mapping, but this is a very rare case. + */ + else if (i > mip->ra_current) { + xfs_da_reada_buf(NULL, dp, + map[mip->ra_index].br_startoff + + mip->ra_offset, + XFS_DATA_FORK); + mip->ra_current = i; + } + + /* + * Advance offset through the mapping table. + */ + for (j = 0; j < mp->m_dirblkfsbs; j++) { + /* + * The rest of this extent but not more than a dir + * block. + */ + length = min_t(int, mp->m_dirblkfsbs, + map[mip->ra_index].br_blockcount - + mip->ra_offset); + j += length; + mip->ra_offset += length; + + /* + * Advance to the next mapping if this one is used up. + */ + if (mip->ra_offset == map[mip->ra_index].br_blockcount) { + mip->ra_offset = 0; + mip->ra_index++; + } + } + } + +out: + *bpp = bp; + return error; +} + /* * Getdents (readdir) for leaf and node directories. * This reads the data blocks only, so is the same for both forms. @@ -775,30 +983,18 @@ xfs_dir2_leaf_getdents( xfs_off_t *offset, filldir_t filldir) { - xfs_dabuf_t *bp; /* data block buffer */ - int byteoff; /* offset in current block */ - xfs_dir2_db_t curdb; /* db for current block */ - xfs_dir2_off_t curoff; /* current overall offset */ + struct xfs_buf *bp = NULL; /* data block buffer */ xfs_dir2_data_hdr_t *hdr; /* data block header */ xfs_dir2_data_entry_t *dep; /* data entry */ xfs_dir2_data_unused_t *dup; /* unused entry */ int error = 0; /* error return value */ - int i; /* temporary loop index */ - int j; /* temporary loop index */ int length; /* temporary length value */ - xfs_bmbt_irec_t *map; /* map vector for blocks */ - xfs_extlen_t map_blocks; /* number of fsbs in map */ - xfs_dablk_t map_off; /* last mapped file offset */ - int map_size; /* total entries in *map */ - int map_valid; /* valid entries in *map */ xfs_mount_t *mp; /* filesystem mount point */ + int byteoff; /* offset in current block */ + xfs_dir2_off_t curoff; /* current overall offset */ xfs_dir2_off_t newoff; /* new curoff after new blk */ - int nmap; /* mappings to ask xfs_bmapi */ 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 */ + struct xfs_dir2_leaf_map_info *map_info; /* * If the offset is at or past the largest allowed value, @@ -814,10 +1010,12 @@ xfs_dir2_leaf_getdents( * buffer size, the directory block size, and the filesystem * block size. */ - 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; + length = howmany(bufsize + mp->m_dirblksize, + mp->m_sb.sb_blocksize); + map_info = kmem_zalloc(offsetof(struct xfs_dir2_leaf_map_info, map) + + (length * sizeof(struct xfs_bmbt_irec)), + KM_SLEEP); + map_info->map_size = length; /* * Inside the loop we keep the main offset value as a byte offset @@ -829,7 +1027,9 @@ xfs_dir2_leaf_getdents( * 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_info->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. @@ -839,191 +1039,17 @@ xfs_dir2_leaf_getdents( * If we have no buffer, or we're off the end of the * current buffer, need to get another one. */ - if (!bp || ptr >= (char *)bp->data + mp->m_dirblksize) { - /* - * If we have a buffer, we need to release it and - * take it out of the mapping. - */ - if (bp) { - xfs_da_brelse(NULL, bp); - bp = NULL; - map_blocks -= mp->m_dirblkfsbs; - /* - * Loop to get rid of the extents for the - * directory block. - */ - for (i = mp->m_dirblkfsbs; i > 0; ) { - j = MIN((int)map->br_blockcount, i); - map->br_blockcount -= j; - map->br_startblock += j; - map->br_startoff += j; - /* - * If mapping is done, pitch it from - * the table. - */ - if (!map->br_blockcount && --map_valid) - memmove(&map[0], &map[1], - sizeof(map[0]) * - map_valid); - i -= j; - } - } - /* - * Recalculate the readahead blocks wanted. - */ - ra_want = howmany(bufsize + mp->m_dirblksize, - mp->m_sb.sb_blocksize) - 1; - ASSERT(ra_want >= 0); + if (!bp || ptr >= (char *)bp->b_addr + mp->m_dirblksize) { - /* - * 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)) { - /* - * Get more bmaps, fill in after the ones - * we already have in the table. - */ - nmap = map_size - map_valid; - error = xfs_bmapi_read(dp, map_off, - xfs_dir2_byte_to_da(mp, - XFS_DIR2_LEAF_OFFSET) - map_off, - &map[map_valid], &nmap, 0); - /* - * Don't know if we should ignore this or - * try to return an error. - * The trouble with returning errors - * is that readdir will just stop without - * actually passing the error through. - */ - if (error) - break; /* XXX */ - /* - * If we got all the mappings we asked for, - * set the final map offset based on the - * last bmap value received. - * Otherwise, we've reached the end. - */ - if (nmap == map_size - map_valid) - map_off = - map[map_valid + nmap - 1].br_startoff + - map[map_valid + nmap - 1].br_blockcount; - else - map_off = - xfs_dir2_byte_to_da(mp, - XFS_DIR2_LEAF_OFFSET); - /* - * Look for holes in the mapping, and - * eliminate them. Count up the valid blocks. - */ - for (i = map_valid; i < map_valid + nmap; ) { - if (map[i].br_startblock == - HOLESTARTBLOCK) { - nmap--; - length = map_valid + nmap - i; - if (length) - memmove(&map[i], - &map[i + 1], - sizeof(map[i]) * - length); - } else { - map_blocks += - map[i].br_blockcount; - i++; - } - } - map_valid += nmap; - } - /* - * No valid mappings, so no more data blocks. - */ - if (!map_valid) { - curoff = xfs_dir2_da_to_byte(mp, map_off); + error = xfs_dir2_leaf_readbuf(dp, bufsize, map_info, + &curoff, &bp); + if (error || !map_info->map_valid) 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(NULL, dp, map->br_startoff, - map->br_blockcount >= mp->m_dirblkfsbs ? - XFS_FSB_TO_DADDR(mp, map->br_startblock) : - -1, - &bp, XFS_DATA_FORK); - /* - * Should just skip over the data block instead - * of giving up. - */ - if (error) - break; /* XXX */ - /* - * Adjust the current amount of read-ahead: we just - * read a block that was previously ra. - */ - if (ra_current) - ra_current -= mp->m_dirblkfsbs; - /* - * Do we need more readahead? - */ - for (ra_index = ra_offset = i = 0; - ra_want > ra_current && i < map_blocks; - i += mp->m_dirblkfsbs) { - ASSERT(ra_index < map_valid); - /* - * Read-ahead a contiguous directory block. - */ - if (i > ra_current && - map[ra_index].br_blockcount >= - mp->m_dirblkfsbs) { - xfs_buf_readahead(mp->m_ddev_targp, - XFS_FSB_TO_DADDR(mp, - map[ra_index].br_startblock + - ra_offset), - (int)BTOBB(mp->m_dirblksize)); - ra_current = i; - } - /* - * Read-ahead a non-contiguous directory block. - * This doesn't use our mapping, but this - * is a very rare case. - */ - else if (i > ra_current) { - (void)xfs_da_reada_buf(NULL, dp, - map[ra_index].br_startoff + - ra_offset, XFS_DATA_FORK); - ra_current = i; - } - /* - * Advance offset through the mapping table. - */ - for (j = 0; j < mp->m_dirblkfsbs; j++) { - /* - * The rest of this extent but not - * more than a dir block. - */ - length = MIN(mp->m_dirblkfsbs, - (int)(map[ra_index].br_blockcount - - ra_offset)); - j += length; - ra_offset += length; - /* - * Advance to the next mapping if - * this one is used up. - */ - if (ra_offset == - map[ra_index].br_blockcount) { - ra_offset = 0; - ra_index++; - } - } - } + /* * 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, map_info->curdb, 0); /* * Start of the current block. */ @@ -1034,8 +1060,8 @@ xfs_dir2_leaf_getdents( */ else if (curoff > newoff) ASSERT(xfs_dir2_byte_to_db(mp, curoff) == - curdb); - hdr = bp->data; + map_info->curdb); + hdr = bp->b_addr; xfs_dir2_data_check(dp, bp); /* * Find our position in the block. @@ -1117,9 +1143,9 @@ xfs_dir2_leaf_getdents( *offset = XFS_DIR2_MAX_DATAPTR & 0x7fffffff; else *offset = xfs_dir2_byte_to_dataptr(mp, curoff) & 0x7fffffff; - kmem_free(map); + kmem_free(map_info); if (bp) - xfs_da_brelse(NULL, bp); + xfs_trans_brelse(NULL, bp); return error; } @@ -1130,10 +1156,10 @@ int xfs_dir2_leaf_init( xfs_da_args_t *args, /* operation arguments */ xfs_dir2_db_t bno, /* directory block number */ - xfs_dabuf_t **bpp, /* out: leaf buffer */ + struct xfs_buf **bpp, /* out: leaf buffer */ int magic) /* magic number for block */ { - xfs_dabuf_t *bp; /* leaf buffer */ + struct xfs_buf *bp; /* leaf buffer */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ xfs_dir2_leaf_t *leaf; /* leaf structure */ @@ -1156,7 +1182,7 @@ xfs_dir2_leaf_init( return error; } ASSERT(bp != NULL); - leaf = bp->data; + leaf = bp->b_addr; /* * Initialize the header. */ @@ -1186,7 +1212,7 @@ xfs_dir2_leaf_init( static void xfs_dir2_leaf_log_bests( xfs_trans_t *tp, /* transaction pointer */ - xfs_dabuf_t *bp, /* leaf buffer */ + struct xfs_buf *bp, /* leaf buffer */ int first, /* first entry to log */ int last) /* last entry to log */ { @@ -1195,12 +1221,12 @@ xfs_dir2_leaf_log_bests( xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_tail_t *ltp; /* leaf tail structure */ - leaf = bp->data; + leaf = bp->b_addr; ASSERT(leaf->hdr.info.magic == cpu_to_be16(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; - xfs_da_log_buf(tp, bp, (uint)((char *)firstb - (char *)leaf), + xfs_trans_log_buf(tp, bp, (uint)((char *)firstb - (char *)leaf), (uint)((char *)lastb - (char *)leaf + sizeof(*lastb) - 1)); } @@ -1210,7 +1236,7 @@ xfs_dir2_leaf_log_bests( void xfs_dir2_leaf_log_ents( xfs_trans_t *tp, /* transaction pointer */ - xfs_dabuf_t *bp, /* leaf buffer */ + struct xfs_buf *bp, /* leaf buffer */ int first, /* first entry to log */ int last) /* last entry to log */ { @@ -1218,12 +1244,12 @@ xfs_dir2_leaf_log_ents( xfs_dir2_leaf_entry_t *lastlep; /* pointer to last entry */ xfs_dir2_leaf_t *leaf; /* leaf structure */ - leaf = bp->data; + leaf = bp->b_addr; ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC) || leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC)); firstlep = &leaf->ents[first]; lastlep = &leaf->ents[last]; - xfs_da_log_buf(tp, bp, (uint)((char *)firstlep - (char *)leaf), + xfs_trans_log_buf(tp, bp, (uint)((char *)firstlep - (char *)leaf), (uint)((char *)lastlep - (char *)leaf + sizeof(*lastlep) - 1)); } @@ -1232,15 +1258,15 @@ xfs_dir2_leaf_log_ents( */ void xfs_dir2_leaf_log_header( - xfs_trans_t *tp, /* transaction pointer */ - xfs_dabuf_t *bp) /* leaf buffer */ + struct xfs_trans *tp, + struct xfs_buf *bp) { xfs_dir2_leaf_t *leaf; /* leaf structure */ - leaf = bp->data; + leaf = bp->b_addr; ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC) || leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC)); - xfs_da_log_buf(tp, bp, (uint)((char *)&leaf->hdr - (char *)leaf), + xfs_trans_log_buf(tp, bp, (uint)((char *)&leaf->hdr - (char *)leaf), (uint)(sizeof(leaf->hdr) - 1)); } @@ -1249,18 +1275,18 @@ xfs_dir2_leaf_log_header( */ STATIC void xfs_dir2_leaf_log_tail( - xfs_trans_t *tp, /* transaction pointer */ - xfs_dabuf_t *bp) /* leaf buffer */ + struct xfs_trans *tp, + struct xfs_buf *bp) { xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_tail_t *ltp; /* leaf tail structure */ xfs_mount_t *mp; /* filesystem mount point */ mp = tp->t_mountp; - leaf = bp->data; + leaf = bp->b_addr; ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC)); ltp = xfs_dir2_leaf_tail_p(mp, leaf); - xfs_da_log_buf(tp, bp, (uint)((char *)ltp - (char *)leaf), + xfs_trans_log_buf(tp, bp, (uint)((char *)ltp - (char *)leaf), (uint)(mp->m_dirblksize - 1)); } @@ -1273,12 +1299,12 @@ int xfs_dir2_leaf_lookup( xfs_da_args_t *args) /* operation arguments */ { - xfs_dabuf_t *dbp; /* data block buffer */ + struct xfs_buf *dbp; /* data block buffer */ xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ int index; /* found entry index */ - xfs_dabuf_t *lbp; /* leaf buffer */ + struct xfs_buf *lbp; /* leaf buffer */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_entry_t *lep; /* leaf entry */ xfs_trans_t *tp; /* transaction pointer */ @@ -1294,7 +1320,7 @@ xfs_dir2_leaf_lookup( tp = args->trans; dp = args->dp; xfs_dir2_leaf_check(dp, lbp); - leaf = lbp->data; + leaf = lbp->b_addr; /* * Get to the leaf entry and contained data entry address. */ @@ -1303,15 +1329,15 @@ xfs_dir2_leaf_lookup( * Point to the data entry. */ dep = (xfs_dir2_data_entry_t *) - ((char *)dbp->data + + ((char *)dbp->b_addr + xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address))); /* * 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); + xfs_trans_brelse(tp, dbp); + xfs_trans_brelse(tp, lbp); return XFS_ERROR(error); } @@ -1324,17 +1350,17 @@ xfs_dir2_leaf_lookup( static int /* error */ xfs_dir2_leaf_lookup_int( xfs_da_args_t *args, /* operation arguments */ - xfs_dabuf_t **lbpp, /* out: leaf buffer */ + struct xfs_buf **lbpp, /* out: leaf buffer */ int *indexp, /* out: index in leaf block */ - xfs_dabuf_t **dbpp) /* out: data buffer */ + struct xfs_buf **dbpp) /* out: data buffer */ { xfs_dir2_db_t curdb = -1; /* current data block number */ - xfs_dabuf_t *dbp = NULL; /* data buffer */ + struct xfs_buf *dbp = NULL; /* data buffer */ xfs_dir2_data_entry_t *dep; /* data entry */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ int index; /* index in leaf block */ - xfs_dabuf_t *lbp; /* leaf buffer */ + struct xfs_buf *lbp; /* leaf buffer */ xfs_dir2_leaf_entry_t *lep; /* leaf entry */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_mount_t *mp; /* filesystem mount point */ @@ -1354,7 +1380,7 @@ xfs_dir2_leaf_lookup_int( if (error) return error; *lbpp = lbp; - leaf = lbp->data; + leaf = lbp->b_addr; xfs_dir2_leaf_check(dp, lbp); /* * Look for the first leaf entry with our hash value. @@ -1382,12 +1408,12 @@ xfs_dir2_leaf_lookup_int( */ if (newdb != curdb) { if (dbp) - xfs_da_brelse(tp, dbp); + xfs_trans_brelse(tp, dbp); 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); + xfs_trans_brelse(tp, lbp); return error; } xfs_dir2_data_check(dp, dbp); @@ -1396,7 +1422,7 @@ xfs_dir2_leaf_lookup_int( /* * Point to the data entry. */ - dep = (xfs_dir2_data_entry_t *)((char *)dbp->data + + dep = (xfs_dir2_data_entry_t *)((char *)dbp->b_addr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); /* * Compare name and if it's an exact match, return the index @@ -1424,12 +1450,12 @@ xfs_dir2_leaf_lookup_int( if (args->cmpresult == XFS_CMP_CASE) { ASSERT(cidb != -1); if (cidb != curdb) { - xfs_da_brelse(tp, dbp); + xfs_trans_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); + xfs_trans_brelse(tp, lbp); return error; } } @@ -1441,8 +1467,8 @@ xfs_dir2_leaf_lookup_int( */ ASSERT(cidb == -1); if (dbp) - xfs_da_brelse(tp, dbp); - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, dbp); + xfs_trans_brelse(tp, lbp); return XFS_ERROR(ENOENT); } @@ -1456,13 +1482,13 @@ xfs_dir2_leaf_removename( __be16 *bestsp; /* leaf block best freespace */ xfs_dir2_data_hdr_t *hdr; /* data block header */ xfs_dir2_db_t db; /* data block number */ - xfs_dabuf_t *dbp; /* data block buffer */ + struct xfs_buf *dbp; /* data block buffer */ xfs_dir2_data_entry_t *dep; /* data entry structure */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ xfs_dir2_db_t i; /* temporary data block # */ int index; /* index into leaf entries */ - xfs_dabuf_t *lbp; /* leaf buffer */ + struct xfs_buf *lbp; /* leaf buffer */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_entry_t *lep; /* leaf entry */ xfs_dir2_leaf_tail_t *ltp; /* leaf tail structure */ @@ -1483,8 +1509,8 @@ xfs_dir2_leaf_removename( dp = args->dp; tp = args->trans; mp = dp->i_mount; - leaf = lbp->data; - hdr = dbp->data; + leaf = lbp->b_addr; + hdr = dbp->b_addr; xfs_dir2_data_check(dp, dbp); /* * Point to the leaf entry, use that to point to the data entry. @@ -1541,12 +1567,9 @@ xfs_dir2_leaf_removename( * Just go on, returning success, leaving the * empty block in place. */ - if (error == ENOSPC && args->total == 0) { - xfs_da_buf_done(dbp); + if (error == ENOSPC && args->total == 0) error = 0; - } xfs_dir2_leaf_check(dp, lbp); - xfs_da_buf_done(lbp); return error; } dbp = NULL; @@ -1577,10 +1600,9 @@ xfs_dir2_leaf_removename( /* * If the data block was not the first one, drop it. */ - else if (db != mp->m_dirdatablk && dbp != NULL) { - xfs_da_buf_done(dbp); + else if (db != mp->m_dirdatablk) dbp = NULL; - } + xfs_dir2_leaf_check(dp, lbp); /* * See if we can convert to block form. @@ -1595,12 +1617,12 @@ int /* error */ xfs_dir2_leaf_replace( xfs_da_args_t *args) /* operation arguments */ { - xfs_dabuf_t *dbp; /* data block buffer */ + struct xfs_buf *dbp; /* data block buffer */ xfs_dir2_data_entry_t *dep; /* data block entry */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ int index; /* index of leaf entry */ - xfs_dabuf_t *lbp; /* leaf buffer */ + struct xfs_buf *lbp; /* leaf buffer */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_dir2_leaf_entry_t *lep; /* leaf entry */ xfs_trans_t *tp; /* transaction pointer */ @@ -1614,7 +1636,7 @@ xfs_dir2_leaf_replace( return error; } dp = args->dp; - leaf = lbp->data; + leaf = lbp->b_addr; /* * Point to the leaf entry, get data address from it. */ @@ -1623,7 +1645,7 @@ xfs_dir2_leaf_replace( * Point to the data entry. */ dep = (xfs_dir2_data_entry_t *) - ((char *)dbp->data + + ((char *)dbp->b_addr + xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address))); ASSERT(args->inumber != be64_to_cpu(dep->inumber)); /* @@ -1632,9 +1654,8 @@ xfs_dir2_leaf_replace( dep->inumber = cpu_to_be64(args->inumber); tp = args->trans; xfs_dir2_data_log_entry(tp, dbp, dep); - xfs_da_buf_done(dbp); xfs_dir2_leaf_check(dp, lbp); - xfs_da_brelse(tp, lbp); + xfs_trans_brelse(tp, lbp); return 0; } @@ -1646,7 +1667,7 @@ xfs_dir2_leaf_replace( int /* index value */ xfs_dir2_leaf_search_hash( xfs_da_args_t *args, /* operation arguments */ - xfs_dabuf_t *lbp) /* leaf buffer */ + struct xfs_buf *lbp) /* leaf buffer */ { xfs_dahash_t hash=0; /* hash from this entry */ xfs_dahash_t hashwant; /* hash value looking for */ @@ -1656,7 +1677,7 @@ xfs_dir2_leaf_search_hash( xfs_dir2_leaf_entry_t *lep; /* leaf entry */ int mid=0; /* current leaf index */ - leaf = lbp->data; + leaf = lbp->b_addr; #ifndef __KERNEL__ if (!leaf->hdr.count) return 0; @@ -1699,11 +1720,11 @@ xfs_dir2_leaf_search_hash( int /* error */ xfs_dir2_leaf_trim_data( xfs_da_args_t *args, /* operation arguments */ - xfs_dabuf_t *lbp, /* leaf buffer */ + struct xfs_buf *lbp, /* leaf buffer */ xfs_dir2_db_t db) /* data block number */ { __be16 *bestsp; /* leaf bests table */ - xfs_dabuf_t *dbp; /* data block buffer */ + struct xfs_buf *dbp; /* data block buffer */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return value */ xfs_dir2_leaf_t *leaf; /* leaf structure */ @@ -1722,12 +1743,12 @@ xfs_dir2_leaf_trim_data( return error; } - leaf = lbp->data; + leaf = lbp->b_addr; ltp = xfs_dir2_leaf_tail_p(mp, leaf); #ifdef DEBUG { - struct xfs_dir2_data_hdr *hdr = dbp->data; + struct xfs_dir2_data_hdr *hdr = dbp->b_addr; ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC)); ASSERT(be16_to_cpu(hdr->bestfree[0].length) == @@ -1741,7 +1762,7 @@ xfs_dir2_leaf_trim_data( */ if ((error = xfs_dir2_shrink_inode(args, db, dbp))) { ASSERT(error != ENOSPC); - xfs_da_brelse(tp, dbp); + xfs_trans_brelse(tp, dbp); return error; } /* @@ -1781,10 +1802,10 @@ xfs_dir2_node_to_leaf( xfs_da_args_t *args; /* operation arguments */ xfs_inode_t *dp; /* incore directory inode */ int error; /* error return code */ - xfs_dabuf_t *fbp; /* buffer for freespace block */ + struct xfs_buf *fbp; /* buffer for freespace block */ xfs_fileoff_t fo; /* freespace file offset */ xfs_dir2_free_t *free; /* freespace structure */ - xfs_dabuf_t *lbp; /* buffer for leaf block */ + struct xfs_buf *lbp; /* buffer for leaf block */ xfs_dir2_leaf_tail_t *ltp; /* tail of leaf structure */ xfs_dir2_leaf_t *leaf; /* leaf structure */ xfs_mount_t *mp; /* filesystem mount point */ @@ -1838,7 +1859,7 @@ xfs_dir2_node_to_leaf( if (XFS_FSB_TO_B(mp, fo) > XFS_DIR2_LEAF_OFFSET + mp->m_dirblksize) return 0; lbp = state->path.blk[0].bp; - leaf = lbp->data; + leaf = lbp->b_addr; ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC)); /* * Read the freespace block. @@ -1847,7 +1868,7 @@ xfs_dir2_node_to_leaf( XFS_DATA_FORK))) { return error; } - free = fbp->data; + free = fbp->b_addr; ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC)); ASSERT(!free->hdr.firstdb); @@ -1857,7 +1878,7 @@ xfs_dir2_node_to_leaf( */ if (xfs_dir2_leaf_size(&leaf->hdr, be32_to_cpu(free->hdr.nvalid)) > mp->m_dirblksize) { - xfs_da_brelse(tp, fbp); + xfs_trans_brelse(tp, fbp); return 0; } |