diff options
Diffstat (limited to 'fs/xfs/xfs_dir2_block.c')
| -rw-r--r-- | fs/xfs/xfs_dir2_block.c | 1020 |
1 files changed, 526 insertions, 494 deletions
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c index 580d99cef9e..c7cd3154026 100644 --- a/fs/xfs/xfs_dir2_block.c +++ b/fs/xfs/xfs_dir2_block.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * Copyright (c) 2013 Red Hat, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -17,33 +18,33 @@ */ #include "xfs.h" #include "xfs_fs.h" -#include "xfs_types.h" -#include "xfs_log.h" -#include "xfs_inum.h" -#include "xfs_trans.h" +#include "xfs_format.h" +#include "xfs_log_format.h" +#include "xfs_trans_resv.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dir2.h" #include "xfs_mount.h" +#include "xfs_da_format.h" #include "xfs_da_btree.h" -#include "xfs_bmap_btree.h" -#include "xfs_dir2_sf.h" -#include "xfs_dinode.h" #include "xfs_inode.h" +#include "xfs_trans.h" #include "xfs_inode_item.h" -#include "xfs_dir2_data.h" -#include "xfs_dir2_leaf.h" -#include "xfs_dir2_block.h" +#include "xfs_bmap.h" +#include "xfs_buf_item.h" +#include "xfs_dir2.h" +#include "xfs_dir2_priv.h" #include "xfs_error.h" #include "xfs_trace.h" +#include "xfs_cksum.h" +#include "xfs_dinode.h" /* * Local function prototypes. */ -static void xfs_dir2_block_log_leaf(xfs_trans_t *tp, xfs_dabuf_t *bp, int first, - int last); -static void xfs_dir2_block_log_tail(xfs_trans_t *tp, xfs_dabuf_t *bp); -static int xfs_dir2_block_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **bpp, +static void xfs_dir2_block_log_leaf(xfs_trans_t *tp, struct xfs_buf *bp, + int first, int last); +static void xfs_dir2_block_log_tail(xfs_trans_t *tp, struct xfs_buf *bp); +static int xfs_dir2_block_lookup_int(xfs_da_args_t *args, struct xfs_buf **bpp, int *entno); static int xfs_dir2_block_sort(const void *a, const void *b); @@ -59,6 +60,273 @@ xfs_dir_startup(void) xfs_dir_hash_dotdot = xfs_da_hashname((unsigned char *)"..", 2); } +static bool +xfs_dir3_block_verify( + struct xfs_buf *bp) +{ + struct xfs_mount *mp = bp->b_target->bt_mount; + struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr; + + if (xfs_sb_version_hascrc(&mp->m_sb)) { + if (hdr3->magic != cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) + return false; + if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_uuid)) + return false; + if (be64_to_cpu(hdr3->blkno) != bp->b_bn) + return false; + } else { + if (hdr3->magic != cpu_to_be32(XFS_DIR2_BLOCK_MAGIC)) + return false; + } + if (__xfs_dir3_data_check(NULL, bp)) + return false; + return true; +} + +static void +xfs_dir3_block_read_verify( + struct xfs_buf *bp) +{ + struct xfs_mount *mp = bp->b_target->bt_mount; + + if (xfs_sb_version_hascrc(&mp->m_sb) && + !xfs_buf_verify_cksum(bp, XFS_DIR3_DATA_CRC_OFF)) + xfs_buf_ioerror(bp, EFSBADCRC); + else if (!xfs_dir3_block_verify(bp)) + xfs_buf_ioerror(bp, EFSCORRUPTED); + + if (bp->b_error) + xfs_verifier_error(bp); +} + +static void +xfs_dir3_block_write_verify( + struct xfs_buf *bp) +{ + struct xfs_mount *mp = bp->b_target->bt_mount; + struct xfs_buf_log_item *bip = bp->b_fspriv; + struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr; + + if (!xfs_dir3_block_verify(bp)) { + xfs_buf_ioerror(bp, EFSCORRUPTED); + xfs_verifier_error(bp); + return; + } + + if (!xfs_sb_version_hascrc(&mp->m_sb)) + return; + + if (bip) + hdr3->lsn = cpu_to_be64(bip->bli_item.li_lsn); + + xfs_buf_update_cksum(bp, XFS_DIR3_DATA_CRC_OFF); +} + +const struct xfs_buf_ops xfs_dir3_block_buf_ops = { + .verify_read = xfs_dir3_block_read_verify, + .verify_write = xfs_dir3_block_write_verify, +}; + +int +xfs_dir3_block_read( + struct xfs_trans *tp, + struct xfs_inode *dp, + struct xfs_buf **bpp) +{ + struct xfs_mount *mp = dp->i_mount; + int err; + + err = xfs_da_read_buf(tp, dp, mp->m_dir_geo->datablk, -1, bpp, + XFS_DATA_FORK, &xfs_dir3_block_buf_ops); + if (!err && tp) + xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_BLOCK_BUF); + return err; +} + +static void +xfs_dir3_block_init( + struct xfs_mount *mp, + struct xfs_trans *tp, + struct xfs_buf *bp, + struct xfs_inode *dp) +{ + struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr; + + bp->b_ops = &xfs_dir3_block_buf_ops; + xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_BLOCK_BUF); + + if (xfs_sb_version_hascrc(&mp->m_sb)) { + memset(hdr3, 0, sizeof(*hdr3)); + hdr3->magic = cpu_to_be32(XFS_DIR3_BLOCK_MAGIC); + hdr3->blkno = cpu_to_be64(bp->b_bn); + hdr3->owner = cpu_to_be64(dp->i_ino); + uuid_copy(&hdr3->uuid, &mp->m_sb.sb_uuid); + return; + + } + hdr3->magic = cpu_to_be32(XFS_DIR2_BLOCK_MAGIC); +} + +static void +xfs_dir2_block_need_space( + struct xfs_inode *dp, + struct xfs_dir2_data_hdr *hdr, + struct xfs_dir2_block_tail *btp, + struct xfs_dir2_leaf_entry *blp, + __be16 **tagpp, + struct xfs_dir2_data_unused **dupp, + struct xfs_dir2_data_unused **enddupp, + int *compact, + int len) +{ + struct xfs_dir2_data_free *bf; + __be16 *tagp = NULL; + struct xfs_dir2_data_unused *dup = NULL; + struct xfs_dir2_data_unused *enddup = NULL; + + *compact = 0; + bf = dp->d_ops->data_bestfree_p(hdr); + + /* + * If there are stale entries we'll use one for the leaf. + */ + if (btp->stale) { + if (be16_to_cpu(bf[0].length) >= len) { + /* + * The biggest entry enough to avoid compaction. + */ + dup = (xfs_dir2_data_unused_t *) + ((char *)hdr + be16_to_cpu(bf[0].offset)); + goto out; + } + + /* + * Will need to compact to make this work. + * Tag just before the first leaf entry. + */ + *compact = 1; + tagp = (__be16 *)blp - 1; + + /* Data object just before the first leaf entry. */ + dup = (xfs_dir2_data_unused_t *)((char *)hdr + be16_to_cpu(*tagp)); + + /* + * If it's not free then the data will go where the + * leaf data starts now, if it works at all. + */ + if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) { + if (be16_to_cpu(dup->length) + (be32_to_cpu(btp->stale) - 1) * + (uint)sizeof(*blp) < len) + dup = NULL; + } else if ((be32_to_cpu(btp->stale) - 1) * (uint)sizeof(*blp) < len) + dup = NULL; + else + dup = (xfs_dir2_data_unused_t *)blp; + goto out; + } + + /* + * no stale entries, so just use free space. + * Tag just before the first leaf entry. + */ + tagp = (__be16 *)blp - 1; + + /* Data object just before the first leaf entry. */ + enddup = (xfs_dir2_data_unused_t *)((char *)hdr + be16_to_cpu(*tagp)); + + /* + * If it's not free then can't do this add without cleaning up: + * the space before the first leaf entry needs to be free so it + * can be expanded to hold the pointer to the new entry. + */ + if (be16_to_cpu(enddup->freetag) == XFS_DIR2_DATA_FREE_TAG) { + /* + * Check out the biggest freespace and see if it's the same one. + */ + dup = (xfs_dir2_data_unused_t *) + ((char *)hdr + be16_to_cpu(bf[0].offset)); + if (dup != enddup) { + /* + * Not the same free entry, just check its length. + */ + if (be16_to_cpu(dup->length) < len) + dup = NULL; + goto out; + } + + /* + * It is the biggest freespace, can it hold the leaf too? + */ + if (be16_to_cpu(dup->length) < len + (uint)sizeof(*blp)) { + /* + * Yes, use the second-largest entry instead if it works. + */ + if (be16_to_cpu(bf[1].length) >= len) + dup = (xfs_dir2_data_unused_t *) + ((char *)hdr + be16_to_cpu(bf[1].offset)); + else + dup = NULL; + } + } +out: + *tagpp = tagp; + *dupp = dup; + *enddupp = enddup; +} + +/* + * compact the leaf entries. + * Leave the highest-numbered stale entry stale. + * XXX should be the one closest to mid but mid is not yet computed. + */ +static void +xfs_dir2_block_compact( + struct xfs_da_args *args, + struct xfs_buf *bp, + struct xfs_dir2_data_hdr *hdr, + struct xfs_dir2_block_tail *btp, + struct xfs_dir2_leaf_entry *blp, + int *needlog, + int *lfloghigh, + int *lfloglow) +{ + int fromidx; /* source leaf index */ + int toidx; /* target leaf index */ + int needscan = 0; + int highstale; /* high stale index */ + + fromidx = toidx = be32_to_cpu(btp->count) - 1; + highstale = *lfloghigh = -1; + for (; fromidx >= 0; fromidx--) { + if (blp[fromidx].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR)) { + if (highstale == -1) + highstale = toidx; + else { + if (*lfloghigh == -1) + *lfloghigh = toidx; + continue; + } + } + if (fromidx < toidx) + blp[toidx] = blp[fromidx]; + toidx--; + } + *lfloglow = toidx + 1 - (be32_to_cpu(btp->stale) - 1); + *lfloghigh -= be32_to_cpu(btp->stale) - 1; + be32_add_cpu(&btp->count, -(be32_to_cpu(btp->stale) - 1)); + xfs_dir2_data_make_free(args, bp, + (xfs_dir2_data_aoff_t)((char *)blp - (char *)hdr), + (xfs_dir2_data_aoff_t)((be32_to_cpu(btp->stale) - 1) * sizeof(*blp)), + needlog, &needscan); + btp->stale = cpu_to_be32(1); + /* + * If we now need to rebuild the bestfree map, do so. + * This needs to happen before the next call to use_free. + */ + if (needscan) + xfs_dir2_data_freescan(args->dp, hdr, needlog); +} + /* * Add an entry to a block directory. */ @@ -66,10 +334,9 @@ int /* error */ xfs_dir2_block_addname( xfs_da_args_t *args) /* directory op arguments */ { - xfs_dir2_data_free_t *bf; /* bestfree table in block */ - xfs_dir2_block_t *block; /* directory block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_leaf_entry_t *blp; /* block leaf entries */ - xfs_dabuf_t *bp; /* buffer for block */ + struct xfs_buf *bp; /* buffer for block */ xfs_dir2_block_tail_t *btp; /* block tail */ int compact; /* need to compact leaf ents */ xfs_dir2_data_entry_t *dep; /* block data entry */ @@ -97,203 +364,74 @@ xfs_dir2_block_addname( dp = args->dp; tp = args->trans; mp = dp->i_mount; - /* - * Read the (one and only) directory block into dabuf bp. - */ - if ((error = - xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) { + + /* Read the (one and only) directory block into bp. */ + error = xfs_dir3_block_read(tp, dp, &bp); + if (error) return error; - } - ASSERT(bp != NULL); - block = bp->data; - /* - * Check the magic number, corrupted if wrong. - */ - if (unlikely(be32_to_cpu(block->hdr.magic) != XFS_DIR2_BLOCK_MAGIC)) { - XFS_CORRUPTION_ERROR("xfs_dir2_block_addname", - XFS_ERRLEVEL_LOW, mp, block); - xfs_da_brelse(tp, bp); - return XFS_ERROR(EFSCORRUPTED); - } - len = xfs_dir2_data_entsize(args->namelen); + + len = dp->d_ops->data_entsize(args->namelen); + /* * Set up pointers to parts of the block. */ - bf = block->hdr.bestfree; - btp = xfs_dir2_block_tail_p(mp, block); + hdr = bp->b_addr; + btp = xfs_dir2_block_tail_p(args->geo, hdr); blp = xfs_dir2_block_leaf_p(btp); + /* - * No stale entries? Need space for entry and new leaf. - */ - if (!btp->stale) { - /* - * Tag just before the first leaf entry. - */ - tagp = (__be16 *)blp - 1; - /* - * Data object just before the first leaf entry. - */ - enddup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp)); - /* - * If it's not free then can't do this add without cleaning up: - * the space before the first leaf entry needs to be free so it - * can be expanded to hold the pointer to the new entry. - */ - if (be16_to_cpu(enddup->freetag) != XFS_DIR2_DATA_FREE_TAG) - dup = enddup = NULL; - /* - * Check out the biggest freespace and see if it's the same one. - */ - else { - dup = (xfs_dir2_data_unused_t *) - ((char *)block + be16_to_cpu(bf[0].offset)); - if (dup == enddup) { - /* - * It is the biggest freespace, is it too small - * to hold the new leaf too? - */ - if (be16_to_cpu(dup->length) < len + (uint)sizeof(*blp)) { - /* - * Yes, we use the second-largest - * entry instead if it works. - */ - if (be16_to_cpu(bf[1].length) >= len) - dup = (xfs_dir2_data_unused_t *) - ((char *)block + - be16_to_cpu(bf[1].offset)); - else - dup = NULL; - } - } else { - /* - * Not the same free entry, - * just check its length. - */ - if (be16_to_cpu(dup->length) < len) { - dup = NULL; - } - } - } - compact = 0; - } - /* - * If there are stale entries we'll use one for the leaf. - * Is the biggest entry enough to avoid compaction? + * Find out if we can reuse stale entries or whether we need extra + * space for entry and new leaf. */ - else if (be16_to_cpu(bf[0].length) >= len) { - dup = (xfs_dir2_data_unused_t *) - ((char *)block + be16_to_cpu(bf[0].offset)); - compact = 0; - } + xfs_dir2_block_need_space(dp, hdr, btp, blp, &tagp, &dup, + &enddup, &compact, len); + /* - * Will need to compact to make this work. + * Done everything we need for a space check now. */ - else { - /* - * Tag just before the first leaf entry. - */ - tagp = (__be16 *)blp - 1; - /* - * Data object just before the first leaf entry. - */ - dup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp)); - /* - * If it's not free then the data will go where the - * leaf data starts now, if it works at all. - */ - if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) { - if (be16_to_cpu(dup->length) + (be32_to_cpu(btp->stale) - 1) * - (uint)sizeof(*blp) < len) - dup = NULL; - } else if ((be32_to_cpu(btp->stale) - 1) * (uint)sizeof(*blp) < len) - dup = NULL; - else - dup = (xfs_dir2_data_unused_t *)blp; - compact = 1; + if (args->op_flags & XFS_DA_OP_JUSTCHECK) { + xfs_trans_brelse(tp, bp); + if (!dup) + return XFS_ERROR(ENOSPC); + return 0; } - /* - * If this isn't a real add, we're done with the buffer. - */ - if (args->op_flags & XFS_DA_OP_JUSTCHECK) - xfs_da_brelse(tp, bp); + /* * If we don't have space for the new entry & leaf ... */ if (!dup) { - /* - * Not trying to actually do anything, or don't have - * a space reservation: return no-space. - */ - if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0) + /* Don't have a space reservation: return no-space. */ + if (args->total == 0) return XFS_ERROR(ENOSPC); /* * Convert to the next larger format. * Then add the new entry in that format. */ error = xfs_dir2_block_to_leaf(args, bp); - xfs_da_buf_done(bp); if (error) return error; return xfs_dir2_leaf_addname(args); } - /* - * Just checking, and it would work, so say so. - */ - if (args->op_flags & XFS_DA_OP_JUSTCHECK) - return 0; + needlog = needscan = 0; + /* * If need to compact the leaf entries, do it now. - * Leave the highest-numbered stale entry stale. - * XXX should be the one closest to mid but mid is not yet computed. */ if (compact) { - int fromidx; /* source leaf index */ - int toidx; /* target leaf index */ - - for (fromidx = toidx = be32_to_cpu(btp->count) - 1, - highstale = lfloghigh = -1; - fromidx >= 0; - fromidx--) { - if (be32_to_cpu(blp[fromidx].address) == XFS_DIR2_NULL_DATAPTR) { - if (highstale == -1) - highstale = toidx; - else { - if (lfloghigh == -1) - lfloghigh = toidx; - continue; - } - } - if (fromidx < toidx) - blp[toidx] = blp[fromidx]; - toidx--; - } - lfloglow = toidx + 1 - (be32_to_cpu(btp->stale) - 1); - lfloghigh -= be32_to_cpu(btp->stale) - 1; - be32_add_cpu(&btp->count, -(be32_to_cpu(btp->stale) - 1)); - xfs_dir2_data_make_free(tp, bp, - (xfs_dir2_data_aoff_t)((char *)blp - (char *)block), - (xfs_dir2_data_aoff_t)((be32_to_cpu(btp->stale) - 1) * sizeof(*blp)), - &needlog, &needscan); - blp += be32_to_cpu(btp->stale) - 1; - btp->stale = cpu_to_be32(1); + xfs_dir2_block_compact(args, bp, hdr, btp, blp, &needlog, + &lfloghigh, &lfloglow); + /* recalculate blp post-compaction */ + blp = xfs_dir2_block_leaf_p(btp); + } else if (btp->stale) { /* - * If we now need to rebuild the bestfree map, do so. - * This needs to happen before the next call to use_free. + * Set leaf logging boundaries to impossible state. + * For the no-stale case they're set explicitly. */ - if (needscan) { - xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog); - needscan = 0; - } - } - /* - * Set leaf logging boundaries to impossible state. - * For the no-stale case they're set explicitly. - */ - else if (btp->stale) { lfloglow = be32_to_cpu(btp->count); lfloghigh = -1; } + /* * Find the slot that's first lower than our hash value, -1 if none. */ @@ -316,9 +454,9 @@ xfs_dir2_block_addname( /* * Mark the space needed for the new leaf entry, now in use. */ - xfs_dir2_data_use_free(tp, bp, enddup, + xfs_dir2_data_use_free(args, bp, enddup, (xfs_dir2_data_aoff_t) - ((char *)enddup - (char *)block + be16_to_cpu(enddup->length) - + ((char *)enddup - (char *)hdr + be16_to_cpu(enddup->length) - sizeof(*blp)), (xfs_dir2_data_aoff_t)sizeof(*blp), &needlog, &needscan); @@ -331,8 +469,7 @@ xfs_dir2_block_addname( * This needs to happen before the next call to use_free. */ if (needscan) { - xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, - &needlog); + xfs_dir2_data_freescan(dp, hdr, &needlog); needscan = 0; } /* @@ -353,12 +490,14 @@ xfs_dir2_block_addname( else { for (lowstale = mid; lowstale >= 0 && - be32_to_cpu(blp[lowstale].address) != XFS_DIR2_NULL_DATAPTR; + blp[lowstale].address != + cpu_to_be32(XFS_DIR2_NULL_DATAPTR); lowstale--) continue; for (highstale = mid + 1; highstale < be32_to_cpu(btp->count) && - be32_to_cpu(blp[highstale].address) != XFS_DIR2_NULL_DATAPTR && + blp[highstale].address != + cpu_to_be32(XFS_DIR2_NULL_DATAPTR) && (lowstale < 0 || mid - lowstale > highstale - mid); highstale++) continue; @@ -396,14 +535,14 @@ xfs_dir2_block_addname( * Fill in the leaf entry. */ blp[mid].hashval = cpu_to_be32(args->hashval); - blp[mid].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp, - (char *)dep - (char *)block)); + blp[mid].address = cpu_to_be32(xfs_dir2_byte_to_dataptr( + (char *)dep - (char *)hdr)); xfs_dir2_block_log_leaf(tp, bp, lfloglow, lfloghigh); /* * Mark space for the data entry used. */ - xfs_dir2_data_use_free(tp, bp, dup, - (xfs_dir2_data_aoff_t)((char *)dup - (char *)block), + xfs_dir2_data_use_free(args, bp, dup, + (xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr), (xfs_dir2_data_aoff_t)len, &needlog, &needscan); /* * Create the new data entry. @@ -411,122 +550,19 @@ xfs_dir2_block_addname( dep->inumber = cpu_to_be64(args->inumber); dep->namelen = args->namelen; memcpy(dep->name, args->name, args->namelen); - tagp = xfs_dir2_data_entry_tag_p(dep); - *tagp = cpu_to_be16((char *)dep - (char *)block); + dp->d_ops->data_put_ftype(dep, args->filetype); + tagp = dp->d_ops->data_entry_tag_p(dep); + *tagp = cpu_to_be16((char *)dep - (char *)hdr); /* * Clean up the bestfree array and log the header, tail, and entry. */ if (needscan) - xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog); + xfs_dir2_data_freescan(dp, hdr, &needlog); if (needlog) - xfs_dir2_data_log_header(tp, bp); + xfs_dir2_data_log_header(args, bp); xfs_dir2_block_log_tail(tp, bp); - xfs_dir2_data_log_entry(tp, bp, dep); - xfs_dir2_data_check(dp, bp); - xfs_da_buf_done(bp); - return 0; -} - -/* - * Readdir for block directories. - */ -int /* error */ -xfs_dir2_block_getdents( - xfs_inode_t *dp, /* incore inode */ - void *dirent, - xfs_off_t *offset, - filldir_t filldir) -{ - xfs_dir2_block_t *block; /* directory block structure */ - xfs_dabuf_t *bp; /* buffer for block */ - xfs_dir2_block_tail_t *btp; /* block tail */ - xfs_dir2_data_entry_t *dep; /* block data entry */ - xfs_dir2_data_unused_t *dup; /* block unused entry */ - char *endptr; /* end of the data entries */ - int error; /* error return value */ - xfs_mount_t *mp; /* filesystem mount point */ - char *ptr; /* current data entry */ - int wantoff; /* starting block offset */ - xfs_off_t cook; - - mp = dp->i_mount; - /* - * If the block number in the offset is out of range, we're done. - */ - if (xfs_dir2_dataptr_to_db(mp, *offset) > mp->m_dirdatablk) { - return 0; - } - /* - * Can't read the block, give up, else get dabuf in bp. - */ - error = xfs_da_read_buf(NULL, dp, mp->m_dirdatablk, -1, - &bp, XFS_DATA_FORK); - if (error) - return error; - - ASSERT(bp != NULL); - /* - * Extract the byte offset we start at from the seek pointer. - * We'll skip entries before this. - */ - wantoff = xfs_dir2_dataptr_to_off(mp, *offset); - block = bp->data; - xfs_dir2_data_check(dp, bp); - /* - * Set up values for the loop. - */ - btp = xfs_dir2_block_tail_p(mp, block); - ptr = (char *)block->u; - endptr = (char *)xfs_dir2_block_leaf_p(btp); - - /* - * Loop over the data portion of the block. - * Each object is a real entry (dep) or an unused one (dup). - */ - while (ptr < endptr) { - dup = (xfs_dir2_data_unused_t *)ptr; - /* - * Unused, skip it. - */ - if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) { - ptr += be16_to_cpu(dup->length); - continue; - } - - dep = (xfs_dir2_data_entry_t *)ptr; - - /* - * Bump pointer for the next iteration. - */ - ptr += xfs_dir2_data_entsize(dep->namelen); - /* - * The entry is before the desired starting point, skip it. - */ - if ((char *)dep - (char *)block < wantoff) - continue; - - cook = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk, - (char *)dep - (char *)block); - - /* - * If it didn't fit, set the final offset to here & return. - */ - if (filldir(dirent, (char *)dep->name, dep->namelen, - cook & 0x7fffffff, be64_to_cpu(dep->inumber), - DT_UNKNOWN)) { - *offset = cook & 0x7fffffff; - xfs_da_brelse(NULL, bp); - return 0; - } - } - - /* - * Reached the end of the block. - * Set the offset to a non-existent block 1 and return. - */ - *offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) & - 0x7fffffff; - xfs_da_brelse(NULL, bp); + xfs_dir2_data_log_entry(args, bp, dep); + xfs_dir3_data_check(dp, bp); return 0; } @@ -536,21 +572,18 @@ xfs_dir2_block_getdents( static void xfs_dir2_block_log_leaf( xfs_trans_t *tp, /* transaction structure */ - xfs_dabuf_t *bp, /* block buffer */ + struct xfs_buf *bp, /* block buffer */ int first, /* index of first logged leaf */ int last) /* index of last logged leaf */ { - xfs_dir2_block_t *block; /* directory block structure */ - xfs_dir2_leaf_entry_t *blp; /* block leaf entries */ - xfs_dir2_block_tail_t *btp; /* block tail */ - xfs_mount_t *mp; /* filesystem mount point */ + xfs_dir2_data_hdr_t *hdr = bp->b_addr; + xfs_dir2_leaf_entry_t *blp; + xfs_dir2_block_tail_t *btp; - mp = tp->t_mountp; - block = bp->data; - btp = xfs_dir2_block_tail_p(mp, block); + btp = xfs_dir2_block_tail_p(tp->t_mountp->m_dir_geo, hdr); blp = xfs_dir2_block_leaf_p(btp); - xfs_da_log_buf(tp, bp, (uint)((char *)&blp[first] - (char *)block), - (uint)((char *)&blp[last + 1] - (char *)block - 1)); + xfs_trans_log_buf(tp, bp, (uint)((char *)&blp[first] - (char *)hdr), + (uint)((char *)&blp[last + 1] - (char *)hdr - 1)); } /* @@ -559,17 +592,14 @@ xfs_dir2_block_log_leaf( static void xfs_dir2_block_log_tail( xfs_trans_t *tp, /* transaction structure */ - xfs_dabuf_t *bp) /* block buffer */ + struct xfs_buf *bp) /* block buffer */ { - xfs_dir2_block_t *block; /* directory block structure */ - xfs_dir2_block_tail_t *btp; /* block tail */ - xfs_mount_t *mp; /* filesystem mount point */ + xfs_dir2_data_hdr_t *hdr = bp->b_addr; + xfs_dir2_block_tail_t *btp; - mp = tp->t_mountp; - block = bp->data; - btp = xfs_dir2_block_tail_p(mp, block); - xfs_da_log_buf(tp, bp, (uint)((char *)btp - (char *)block), - (uint)((char *)(btp + 1) - (char *)block - 1)); + btp = xfs_dir2_block_tail_p(tp->t_mountp->m_dir_geo, hdr); + xfs_trans_log_buf(tp, bp, (uint)((char *)btp - (char *)hdr), + (uint)((char *)(btp + 1) - (char *)hdr - 1)); } /* @@ -580,9 +610,9 @@ int /* error */ xfs_dir2_block_lookup( xfs_da_args_t *args) /* dir lookup arguments */ { - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_leaf_entry_t *blp; /* block leaf entries */ - xfs_dabuf_t *bp; /* block buffer */ + struct xfs_buf *bp; /* block buffer */ xfs_dir2_block_tail_t *btp; /* block tail */ xfs_dir2_data_entry_t *dep; /* block data entry */ xfs_inode_t *dp; /* incore inode */ @@ -600,21 +630,23 @@ xfs_dir2_block_lookup( return error; dp = args->dp; mp = dp->i_mount; - block = bp->data; - xfs_dir2_data_check(dp, bp); - btp = xfs_dir2_block_tail_p(mp, block); + hdr = bp->b_addr; + xfs_dir3_data_check(dp, bp); + btp = xfs_dir2_block_tail_p(args->geo, hdr); blp = xfs_dir2_block_leaf_p(btp); /* * Get the offset from the leaf entry, to point to the data. */ - dep = (xfs_dir2_data_entry_t *)((char *)block + - xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address))); + dep = (xfs_dir2_data_entry_t *)((char *)hdr + + xfs_dir2_dataptr_to_off(args->geo, + be32_to_cpu(blp[ent].address))); /* * Fill in inode number, CI name if appropriate, release the block. */ args->inumber = be64_to_cpu(dep->inumber); + args->filetype = dp->d_ops->data_get_ftype(dep); error = xfs_dir_cilookup_result(args, dep->name, dep->namelen); - xfs_da_brelse(args->trans, bp); + xfs_trans_brelse(args->trans, bp); return XFS_ERROR(error); } @@ -624,13 +656,13 @@ xfs_dir2_block_lookup( static int /* error */ xfs_dir2_block_lookup_int( xfs_da_args_t *args, /* dir lookup arguments */ - xfs_dabuf_t **bpp, /* returned block buffer */ + struct xfs_buf **bpp, /* returned block buffer */ int *entno) /* returned entry number */ { xfs_dir2_dataptr_t addr; /* data entry address */ - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_leaf_entry_t *blp; /* block leaf entries */ - xfs_dabuf_t *bp; /* block buffer */ + struct xfs_buf *bp; /* block buffer */ xfs_dir2_block_tail_t *btp; /* block tail */ xfs_dir2_data_entry_t *dep; /* block data entry */ xfs_inode_t *dp; /* incore inode */ @@ -646,17 +678,14 @@ xfs_dir2_block_lookup_int( dp = args->dp; tp = args->trans; mp = dp->i_mount; - /* - * Read the buffer, return error if we can't get it. - */ - if ((error = - xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) { + + error = xfs_dir3_block_read(tp, dp, &bp); + if (error) return error; - } - ASSERT(bp != NULL); - block = bp->data; - xfs_dir2_data_check(dp, bp); - btp = xfs_dir2_block_tail_p(mp, block); + + hdr = bp->b_addr; + xfs_dir3_data_check(dp, bp); + btp = xfs_dir2_block_tail_p(args->geo, hdr); blp = xfs_dir2_block_leaf_p(btp); /* * Loop doing a binary search for our hash value. @@ -673,7 +702,7 @@ xfs_dir2_block_lookup_int( high = mid - 1; if (low > high) { ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); - xfs_da_brelse(tp, bp); + xfs_trans_brelse(tp, bp); return XFS_ERROR(ENOENT); } } @@ -694,7 +723,7 @@ xfs_dir2_block_lookup_int( * Get pointer to the entry from the leaf. */ dep = (xfs_dir2_data_entry_t *) - ((char *)block + xfs_dir2_dataptr_to_off(mp, addr)); + ((char *)hdr + xfs_dir2_dataptr_to_off(args->geo, addr)); /* * Compare name and if it's an exact match, return the index * and buffer. If it's the first case-insensitive match, store @@ -721,7 +750,7 @@ xfs_dir2_block_lookup_int( /* * No match, release the buffer and return ENOENT. */ - xfs_da_brelse(tp, bp); + xfs_trans_brelse(tp, bp); return XFS_ERROR(ENOENT); } @@ -733,9 +762,9 @@ int /* error */ xfs_dir2_block_removename( xfs_da_args_t *args) /* directory operation args */ { - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_leaf_entry_t *blp; /* block leaf pointer */ - xfs_dabuf_t *bp; /* block buffer */ + struct xfs_buf *bp; /* block buffer */ xfs_dir2_block_tail_t *btp; /* block tail */ xfs_dir2_data_entry_t *dep; /* block data entry */ xfs_inode_t *dp; /* incore inode */ @@ -760,21 +789,22 @@ xfs_dir2_block_removename( dp = args->dp; tp = args->trans; mp = dp->i_mount; - block = bp->data; - btp = xfs_dir2_block_tail_p(mp, block); + hdr = bp->b_addr; + btp = xfs_dir2_block_tail_p(args->geo, hdr); blp = xfs_dir2_block_leaf_p(btp); /* * Point to the data entry using the leaf entry. */ - dep = (xfs_dir2_data_entry_t *) - ((char *)block + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address))); + dep = (xfs_dir2_data_entry_t *)((char *)hdr + + xfs_dir2_dataptr_to_off(args->geo, + be32_to_cpu(blp[ent].address))); /* * Mark the data entry's space free. */ needlog = needscan = 0; - xfs_dir2_data_make_free(tp, bp, - (xfs_dir2_data_aoff_t)((char *)dep - (char *)block), - xfs_dir2_data_entsize(dep->namelen), &needlog, &needscan); + xfs_dir2_data_make_free(args, bp, + (xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr), + dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan); /* * Fix up the block tail. */ @@ -789,18 +819,17 @@ xfs_dir2_block_removename( * Fix up bestfree, log the header if necessary. */ if (needscan) - xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog); + xfs_dir2_data_freescan(dp, hdr, &needlog); if (needlog) - xfs_dir2_data_log_header(tp, bp); - xfs_dir2_data_check(dp, bp); + xfs_dir2_data_log_header(args, bp); + xfs_dir3_data_check(dp, bp); /* * See if the size as a shortform is good enough. */ - if ((size = xfs_dir2_block_sfsize(dp, block, &sfh)) > - XFS_IFORK_DSIZE(dp)) { - xfs_da_buf_done(bp); + size = xfs_dir2_block_sfsize(dp, hdr, &sfh); + if (size > XFS_IFORK_DSIZE(dp)) return 0; - } + /* * If it works, do the conversion. */ @@ -815,9 +844,9 @@ int /* error */ xfs_dir2_block_replace( xfs_da_args_t *args) /* directory operation args */ { - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_leaf_entry_t *blp; /* block leaf entries */ - xfs_dabuf_t *bp; /* block buffer */ + struct xfs_buf *bp; /* block buffer */ xfs_dir2_block_tail_t *btp; /* block tail */ xfs_dir2_data_entry_t *dep; /* block data entry */ xfs_inode_t *dp; /* incore inode */ @@ -836,22 +865,23 @@ xfs_dir2_block_replace( } dp = args->dp; mp = dp->i_mount; - block = bp->data; - btp = xfs_dir2_block_tail_p(mp, block); + hdr = bp->b_addr; + btp = xfs_dir2_block_tail_p(args->geo, hdr); blp = xfs_dir2_block_leaf_p(btp); /* * Point to the data entry we need to change. */ - dep = (xfs_dir2_data_entry_t *) - ((char *)block + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address))); + dep = (xfs_dir2_data_entry_t *)((char *)hdr + + xfs_dir2_dataptr_to_off(args->geo, + be32_to_cpu(blp[ent].address))); ASSERT(be64_to_cpu(dep->inumber) != args->inumber); /* * Change the inode number to the new value. */ dep->inumber = cpu_to_be64(args->inumber); - xfs_dir2_data_log_entry(args->trans, bp, dep); - xfs_dir2_data_check(dp, bp); - xfs_da_buf_done(bp); + dp->d_ops->data_put_ftype(dep, args->filetype); + xfs_dir2_data_log_entry(args, bp, dep); + xfs_dir3_data_check(dp, bp); return 0; } @@ -878,11 +908,11 @@ xfs_dir2_block_sort( int /* error */ xfs_dir2_leaf_to_block( xfs_da_args_t *args, /* operation arguments */ - xfs_dabuf_t *lbp, /* leaf buffer */ - xfs_dabuf_t *dbp) /* data buffer */ + struct xfs_buf *lbp, /* leaf buffer */ + struct xfs_buf *dbp) /* data buffer */ { __be16 *bestsp; /* leaf bests table */ - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_block_tail_t *btp; /* block tail */ xfs_inode_t *dp; /* incore directory inode */ xfs_dir2_data_unused_t *dup; /* unused data entry */ @@ -899,88 +929,97 @@ xfs_dir2_leaf_to_block( __be16 *tagp; /* end of entry (tag) */ int to; /* block/leaf to index */ xfs_trans_t *tp; /* transaction pointer */ + struct xfs_dir2_leaf_entry *ents; + struct xfs_dir3_icleaf_hdr leafhdr; trace_xfs_dir2_leaf_to_block(args); dp = args->dp; tp = args->trans; mp = dp->i_mount; - leaf = lbp->data; - ASSERT(be16_to_cpu(leaf->hdr.info.magic) == XFS_DIR2_LEAF1_MAGIC); - ltp = xfs_dir2_leaf_tail_p(mp, leaf); + leaf = lbp->b_addr; + dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf); + ents = dp->d_ops->leaf_ents_p(leaf); + ltp = xfs_dir2_leaf_tail_p(args->geo, leaf); + + ASSERT(leafhdr.magic == XFS_DIR2_LEAF1_MAGIC || + leafhdr.magic == XFS_DIR3_LEAF1_MAGIC); /* * If there are data blocks other than the first one, take this * opportunity to remove trailing empty data blocks that may have * been left behind during no-space-reservation operations. * These will show up in the leaf bests table. */ - while (dp->i_d.di_size > mp->m_dirblksize) { + while (dp->i_d.di_size > args->geo->blksize) { + int hdrsz; + + hdrsz = dp->d_ops->data_entry_offset; bestsp = xfs_dir2_leaf_bests_p(ltp); if (be16_to_cpu(bestsp[be32_to_cpu(ltp->bestcount) - 1]) == - mp->m_dirblksize - (uint)sizeof(block->hdr)) { + args->geo->blksize - hdrsz) { if ((error = xfs_dir2_leaf_trim_data(args, lbp, (xfs_dir2_db_t)(be32_to_cpu(ltp->bestcount) - 1)))) - goto out; - } else { - error = 0; - goto out; - } + return error; + } else + return 0; } /* * Read the data block if we don't already have it, give up if it fails. */ - if (dbp == NULL && - (error = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &dbp, - XFS_DATA_FORK))) { - goto out; + if (!dbp) { + error = xfs_dir3_data_read(tp, dp, args->geo->datablk, -1, &dbp); + if (error) + return error; } - block = dbp->data; - ASSERT(be32_to_cpu(block->hdr.magic) == XFS_DIR2_DATA_MAGIC); + hdr = dbp->b_addr; + ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC)); + /* * Size of the "leaf" area in the block. */ - size = (uint)sizeof(block->tail) + - (uint)sizeof(*lep) * (be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale)); + size = (uint)sizeof(xfs_dir2_block_tail_t) + + (uint)sizeof(*lep) * (leafhdr.count - leafhdr.stale); /* * Look at the last data entry. */ - tagp = (__be16 *)((char *)block + mp->m_dirblksize) - 1; - dup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp)); + tagp = (__be16 *)((char *)hdr + args->geo->blksize) - 1; + dup = (xfs_dir2_data_unused_t *)((char *)hdr + be16_to_cpu(*tagp)); /* * If it's not free or is too short we can't do it. */ if (be16_to_cpu(dup->freetag) != XFS_DIR2_DATA_FREE_TAG || - be16_to_cpu(dup->length) < size) { - error = 0; - goto out; - } + be16_to_cpu(dup->length) < size) + return 0; + /* * Start converting it to block form. */ - block->hdr.magic = cpu_to_be32(XFS_DIR2_BLOCK_MAGIC); + xfs_dir3_block_init(mp, tp, dbp, dp); + needlog = 1; needscan = 0; /* * Use up the space at the end of the block (blp/btp). */ - xfs_dir2_data_use_free(tp, dbp, dup, mp->m_dirblksize - size, size, + xfs_dir2_data_use_free(args, dbp, dup, args->geo->blksize - size, size, &needlog, &needscan); /* * Initialize the block tail. */ - btp = xfs_dir2_block_tail_p(mp, block); - btp->count = cpu_to_be32(be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale)); + btp = xfs_dir2_block_tail_p(args->geo, hdr); + btp->count = cpu_to_be32(leafhdr.count - leafhdr.stale); btp->stale = 0; xfs_dir2_block_log_tail(tp, dbp); /* * Initialize the block leaf area. We compact out stale entries. */ lep = xfs_dir2_block_leaf_p(btp); - for (from = to = 0; from < be16_to_cpu(leaf->hdr.count); from++) { - if (be32_to_cpu(leaf->ents[from].address) == XFS_DIR2_NULL_DATAPTR) + for (from = to = 0; from < leafhdr.count; from++) { + if (ents[from].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR)) continue; - lep[to++] = leaf->ents[from]; + lep[to++] = ents[from]; } ASSERT(to == be32_to_cpu(btp->count)); xfs_dir2_block_log_leaf(tp, dbp, 0, be32_to_cpu(btp->count) - 1); @@ -988,32 +1027,24 @@ xfs_dir2_leaf_to_block( * Scan the bestfree if we need it and log the data block header. */ if (needscan) - xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog); + xfs_dir2_data_freescan(dp, hdr, &needlog); if (needlog) - xfs_dir2_data_log_header(tp, dbp); + xfs_dir2_data_log_header(args, dbp); /* * Pitch the old leaf block. */ - error = xfs_da_shrink_inode(args, mp->m_dirleafblk, lbp); - lbp = NULL; - if (error) { - goto out; - } + error = xfs_da_shrink_inode(args, args->geo->leafblk, lbp); + if (error) + return error; + /* * Now see if the resulting block can be shrunken to shortform. */ - if ((size = xfs_dir2_block_sfsize(dp, block, &sfh)) > - XFS_IFORK_DSIZE(dp)) { - error = 0; - goto out; - } + size = xfs_dir2_block_sfsize(dp, hdr, &sfh); + if (size > XFS_IFORK_DSIZE(dp)) + return 0; + return xfs_dir2_block_to_sf(args, dbp, size, &sfh); -out: - if (lbp) - xfs_da_buf_done(lbp); - if (dbp) - xfs_da_buf_done(dbp); - return error; } /* @@ -1024,12 +1055,10 @@ xfs_dir2_sf_to_block( xfs_da_args_t *args) /* operation arguments */ { xfs_dir2_db_t blkno; /* dir-relative block # (0) */ - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_leaf_entry_t *blp; /* block leaf entries */ - xfs_dabuf_t *bp; /* block buffer */ + struct xfs_buf *bp; /* block buffer */ xfs_dir2_block_tail_t *btp; /* block tail pointer */ - char *buf; /* sf buffer */ - int buf_len; xfs_dir2_data_entry_t *dep; /* data entry pointer */ xfs_inode_t *dp; /* incore directory inode */ int dummy; /* trash */ @@ -1043,17 +1072,20 @@ xfs_dir2_sf_to_block( int newoffset; /* offset from current entry */ int offset; /* target block offset */ xfs_dir2_sf_entry_t *sfep; /* sf entry pointer */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *oldsfp; /* old shortform header */ + xfs_dir2_sf_hdr_t *sfp; /* shortform header */ __be16 *tagp; /* end of data entry */ xfs_trans_t *tp; /* transaction pointer */ struct xfs_name name; + struct xfs_ifork *ifp; trace_xfs_dir2_sf_to_block(args); dp = args->dp; tp = args->trans; mp = dp->i_mount; - ASSERT(dp->i_df.if_flags & XFS_IFINLINE); + ifp = XFS_IFORK_PTR(dp, XFS_DATA_FORK); + ASSERT(ifp->if_flags & XFS_IFINLINE); /* * Bomb out if the shortform directory is way too short. */ @@ -1061,105 +1093,106 @@ xfs_dir2_sf_to_block( ASSERT(XFS_FORCED_SHUTDOWN(mp)); return XFS_ERROR(EIO); } - ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); - ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count)); + + oldsfp = (xfs_dir2_sf_hdr_t *)ifp->if_u1.if_data; + + ASSERT(ifp->if_bytes == dp->i_d.di_size); + ASSERT(ifp->if_u1.if_data != NULL); + ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(oldsfp->i8count)); + ASSERT(dp->i_d.di_nextents == 0); + /* - * Copy the directory into the stack buffer. + * Copy the directory into a temporary buffer. * Then pitch the incore inode data so we can make extents. */ + sfp = kmem_alloc(ifp->if_bytes, KM_SLEEP); + memcpy(sfp, oldsfp, ifp->if_bytes); - buf_len = dp->i_df.if_bytes; - buf = kmem_alloc(buf_len, KM_SLEEP); - - memcpy(buf, sfp, buf_len); - xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK); + xfs_idata_realloc(dp, -ifp->if_bytes, XFS_DATA_FORK); + xfs_bmap_local_to_extents_empty(dp, XFS_DATA_FORK); dp->i_d.di_size = 0; - xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); - /* - * Reset pointer - old sfp is gone. - */ - sfp = (xfs_dir2_sf_t *)buf; + /* * Add block 0 to the inode. */ error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE, &blkno); if (error) { - kmem_free(buf); + kmem_free(sfp); return error; } /* - * Initialize the data block. + * Initialize the data block, then convert it to block format. */ - error = xfs_dir2_data_init(args, blkno, &bp); + error = xfs_dir3_data_init(args, blkno, &bp); if (error) { - kmem_free(buf); + kmem_free(sfp); return error; } - block = bp->data; - block->hdr.magic = cpu_to_be32(XFS_DIR2_BLOCK_MAGIC); + xfs_dir3_block_init(mp, tp, bp, dp); + hdr = bp->b_addr; + /* * Compute size of block "tail" area. */ i = (uint)sizeof(*btp) + - (sfp->hdr.count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t); + (sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t); /* * The whole thing is initialized to free by the init routine. * Say we're using the leaf and tail area. */ - dup = (xfs_dir2_data_unused_t *)block->u; + dup = dp->d_ops->data_unused_p(hdr); needlog = needscan = 0; - xfs_dir2_data_use_free(tp, bp, dup, mp->m_dirblksize - i, i, &needlog, - &needscan); + xfs_dir2_data_use_free(args, bp, dup, args->geo->blksize - i, + i, &needlog, &needscan); ASSERT(needscan == 0); /* * Fill in the tail. */ - btp = xfs_dir2_block_tail_p(mp, block); - btp->count = cpu_to_be32(sfp->hdr.count + 2); /* ., .. */ + btp = xfs_dir2_block_tail_p(args->geo, hdr); + btp->count = cpu_to_be32(sfp->count + 2); /* ., .. */ btp->stale = 0; blp = xfs_dir2_block_leaf_p(btp); - endoffset = (uint)((char *)blp - (char *)block); + endoffset = (uint)((char *)blp - (char *)hdr); /* * Remove the freespace, we'll manage it. */ - xfs_dir2_data_use_free(tp, bp, dup, - (xfs_dir2_data_aoff_t)((char *)dup - (char *)block), + xfs_dir2_data_use_free(args, bp, dup, + (xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr), be16_to_cpu(dup->length), &needlog, &needscan); /* * Create entry for . */ - dep = (xfs_dir2_data_entry_t *) - ((char *)block + XFS_DIR2_DATA_DOT_OFFSET); + dep = dp->d_ops->data_dot_entry_p(hdr); dep->inumber = cpu_to_be64(dp->i_ino); dep->namelen = 1; dep->name[0] = '.'; - tagp = xfs_dir2_data_entry_tag_p(dep); - *tagp = cpu_to_be16((char *)dep - (char *)block); - xfs_dir2_data_log_entry(tp, bp, dep); + dp->d_ops->data_put_ftype(dep, XFS_DIR3_FT_DIR); + tagp = dp->d_ops->data_entry_tag_p(dep); + *tagp = cpu_to_be16((char *)dep - (char *)hdr); + xfs_dir2_data_log_entry(args, bp, dep); blp[0].hashval = cpu_to_be32(xfs_dir_hash_dot); - blp[0].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp, - (char *)dep - (char *)block)); + blp[0].address = cpu_to_be32(xfs_dir2_byte_to_dataptr( + (char *)dep - (char *)hdr)); /* * Create entry for .. */ - dep = (xfs_dir2_data_entry_t *) - ((char *)block + XFS_DIR2_DATA_DOTDOT_OFFSET); - dep->inumber = cpu_to_be64(xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent)); + dep = dp->d_ops->data_dotdot_entry_p(hdr); + dep->inumber = cpu_to_be64(dp->d_ops->sf_get_parent_ino(sfp)); dep->namelen = 2; dep->name[0] = dep->name[1] = '.'; - tagp = xfs_dir2_data_entry_tag_p(dep); - *tagp = cpu_to_be16((char *)dep - (char *)block); - xfs_dir2_data_log_entry(tp, bp, dep); + dp->d_ops->data_put_ftype(dep, XFS_DIR3_FT_DIR); + tagp = dp->d_ops->data_entry_tag_p(dep); + *tagp = cpu_to_be16((char *)dep - (char *)hdr); + xfs_dir2_data_log_entry(args, bp, dep); blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot); - blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp, - (char *)dep - (char *)block)); - offset = XFS_DIR2_DATA_FIRST_OFFSET; + blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr( + (char *)dep - (char *)hdr)); + offset = dp->d_ops->data_first_offset; /* * Loop over existing entries, stuff them in. */ - if ((i = 0) == sfp->hdr.count) + i = 0; + if (!sfp->count) sfep = NULL; else sfep = xfs_dir2_sf_firstentry(sfp); @@ -1179,43 +1212,43 @@ xfs_dir2_sf_to_block( * There should be a hole here, make one. */ if (offset < newoffset) { - dup = (xfs_dir2_data_unused_t *) - ((char *)block + offset); + dup = (xfs_dir2_data_unused_t *)((char *)hdr + offset); dup->freetag = cpu_to_be16(XFS_DIR2_DATA_FREE_TAG); dup->length = cpu_to_be16(newoffset - offset); *xfs_dir2_data_unused_tag_p(dup) = cpu_to_be16( - ((char *)dup - (char *)block)); - xfs_dir2_data_log_unused(tp, bp, dup); - (void)xfs_dir2_data_freeinsert((xfs_dir2_data_t *)block, - dup, &dummy); + ((char *)dup - (char *)hdr)); + xfs_dir2_data_log_unused(args, bp, dup); + xfs_dir2_data_freeinsert(hdr, + dp->d_ops->data_bestfree_p(hdr), + dup, &dummy); offset += be16_to_cpu(dup->length); continue; } /* * Copy a real entry. */ - dep = (xfs_dir2_data_entry_t *)((char *)block + newoffset); - dep->inumber = cpu_to_be64(xfs_dir2_sf_get_inumber(sfp, - xfs_dir2_sf_inumberp(sfep))); + dep = (xfs_dir2_data_entry_t *)((char *)hdr + newoffset); + dep->inumber = cpu_to_be64(dp->d_ops->sf_get_ino(sfp, sfep)); dep->namelen = sfep->namelen; + dp->d_ops->data_put_ftype(dep, dp->d_ops->sf_get_ftype(sfep)); memcpy(dep->name, sfep->name, dep->namelen); - tagp = xfs_dir2_data_entry_tag_p(dep); - *tagp = cpu_to_be16((char *)dep - (char *)block); - xfs_dir2_data_log_entry(tp, bp, dep); + tagp = dp->d_ops->data_entry_tag_p(dep); + *tagp = cpu_to_be16((char *)dep - (char *)hdr); + xfs_dir2_data_log_entry(args, bp, dep); name.name = sfep->name; name.len = sfep->namelen; blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops-> hashname(&name)); - blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp, - (char *)dep - (char *)block)); - offset = (int)((char *)(tagp + 1) - (char *)block); - if (++i == sfp->hdr.count) + blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr( + (char *)dep - (char *)hdr)); + offset = (int)((char *)(tagp + 1) - (char *)hdr); + if (++i == sfp->count) sfep = NULL; else - sfep = xfs_dir2_sf_nextentry(sfp, sfep); + sfep = dp->d_ops->sf_nextentry(sfp, sfep); } /* Done with the temporary buffer */ - kmem_free(buf); + kmem_free(sfp); /* * Sort the leaf entries by hash value. */ @@ -1227,7 +1260,6 @@ xfs_dir2_sf_to_block( ASSERT(needscan == 0); xfs_dir2_block_log_leaf(tp, bp, 0, be32_to_cpu(btp->count) - 1); xfs_dir2_block_log_tail(tp, bp); - xfs_dir2_data_check(dp, bp); - xfs_da_buf_done(bp); + xfs_dir3_data_check(dp, bp); return 0; } |