diff options
author | Dave Chinner <dchinner@redhat.com> | 2013-04-03 16:11:22 +1100 |
---|---|---|
committer | Ben Myers <bpm@sgi.com> | 2013-04-27 12:00:00 -0500 |
commit | 33363feed1614def83d0a6870051f0a7828cd61b (patch) | |
tree | 87fc721e32537e981264a1662de2c44d1d195607 /fs/xfs | |
parent | cbc8adf89724b961c08b823d8bfb6dadbfa8733d (diff) | |
download | blackbird-obmc-linux-33363feed1614def83d0a6870051f0a7828cd61b.tar.gz blackbird-obmc-linux-33363feed1614def83d0a6870051f0a7828cd61b.zip |
xfs: add CRC checking to dir2 data blocks
This addition follows the same pattern as the dir2 block CRCs.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r-- | fs/xfs/xfs_dir2_block.c | 22 | ||||
-rw-r--r-- | fs/xfs/xfs_dir2_data.c | 100 | ||||
-rw-r--r-- | fs/xfs/xfs_dir2_format.h | 21 | ||||
-rw-r--r-- | fs/xfs/xfs_dir2_leaf.c | 71 | ||||
-rw-r--r-- | fs/xfs/xfs_dir2_node.c | 39 | ||||
-rw-r--r-- | fs/xfs/xfs_dir2_priv.h | 12 | ||||
-rw-r--r-- | fs/xfs/xfs_file.c | 2 |
7 files changed, 162 insertions, 105 deletions
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c index 79a3f1b2bc7d..7ec87c20cbd2 100644 --- a/fs/xfs/xfs_dir2_block.c +++ b/fs/xfs/xfs_dir2_block.c @@ -77,7 +77,7 @@ xfs_dir3_block_verify( if (hdr3->magic != cpu_to_be32(XFS_DIR2_BLOCK_MAGIC)) return false; } - if (__xfs_dir2_data_check(NULL, bp)) + if (__xfs_dir3_data_check(NULL, bp)) return false; return true; } @@ -553,7 +553,7 @@ xfs_dir2_block_addname( xfs_dir2_data_log_header(tp, bp); xfs_dir2_block_log_tail(tp, bp); xfs_dir2_data_log_entry(tp, bp, dep); - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); return 0; } @@ -596,7 +596,7 @@ xfs_dir2_block_getdents( */ wantoff = xfs_dir2_dataptr_to_off(mp, *offset); hdr = bp->b_addr; - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); /* * Set up values for the loop. */ @@ -720,7 +720,7 @@ xfs_dir2_block_lookup( dp = args->dp; mp = dp->i_mount; hdr = bp->b_addr; - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); btp = xfs_dir2_block_tail_p(mp, hdr); blp = xfs_dir2_block_leaf_p(btp); /* @@ -771,7 +771,7 @@ xfs_dir2_block_lookup_int( return error; hdr = bp->b_addr; - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); btp = xfs_dir2_block_tail_p(mp, hdr); blp = xfs_dir2_block_leaf_p(btp); /* @@ -908,7 +908,7 @@ xfs_dir2_block_removename( xfs_dir2_data_freescan(mp, hdr, &needlog); if (needlog) xfs_dir2_data_log_header(tp, bp); - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); /* * See if the size as a shortform is good enough. */ @@ -965,7 +965,7 @@ xfs_dir2_block_replace( */ dep->inumber = cpu_to_be64(args->inumber); xfs_dir2_data_log_entry(args->trans, bp, dep); - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); return 0; } @@ -1046,12 +1046,14 @@ xfs_dir2_leaf_to_block( * Read the data block if we don't already have it, give up if it fails. */ if (!dbp) { - error = xfs_dir2_data_read(tp, dp, mp->m_dirdatablk, -1, &dbp); + error = xfs_dir3_data_read(tp, dp, mp->m_dirdatablk, -1, &dbp); if (error) return error; } hdr = dbp->b_addr; - ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC)); + 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. */ @@ -1329,6 +1331,6 @@ 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_dir3_data_check(dp, bp); return 0; } diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c index 8484ec4848ea..78320df3743f 100644 --- a/fs/xfs/xfs_dir2_data.c +++ b/fs/xfs/xfs_dir2_data.c @@ -31,6 +31,8 @@ #include "xfs_dir2_format.h" #include "xfs_dir2_priv.h" #include "xfs_error.h" +#include "xfs_buf_item.h" +#include "xfs_cksum.h" STATIC xfs_dir2_data_free_t * xfs_dir2_data_freefind(xfs_dir2_data_hdr_t *hdr, xfs_dir2_data_unused_t *dup); @@ -41,7 +43,7 @@ xfs_dir2_data_freefind(xfs_dir2_data_hdr_t *hdr, xfs_dir2_data_unused_t *dup); * Return 0 is the buffer is good, otherwise an error. */ int -__xfs_dir2_data_check( +__xfs_dir3_data_check( struct xfs_inode *dp, /* incore inode pointer */ struct xfs_buf *bp) /* data block's buffer */ { @@ -76,6 +78,7 @@ __xfs_dir2_data_check( lep = xfs_dir2_block_leaf_p(btp); endp = (char *)lep; break; + case cpu_to_be32(XFS_DIR3_DATA_MAGIC): case cpu_to_be32(XFS_DIR2_DATA_MAGIC): endp = (char *)hdr + mp->m_dirblksize; break; @@ -189,21 +192,27 @@ __xfs_dir2_data_check( return 0; } -static void -xfs_dir2_data_verify( +static bool +xfs_dir3_data_verify( struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; - struct xfs_dir2_data_hdr *hdr = bp->b_addr; - int block_ok = 0; + struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr; - block_ok = hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC); - block_ok = block_ok && __xfs_dir2_data_check(NULL, bp) == 0; - - if (!block_ok) { - XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, hdr); - xfs_buf_ioerror(bp, EFSCORRUPTED); + if (xfs_sb_version_hascrc(&mp->m_sb)) { + if (hdr3->magic != cpu_to_be32(XFS_DIR3_DATA_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_DATA_MAGIC)) + return false; } + if (__xfs_dir3_data_check(NULL, bp)) + return false; + return true; } /* @@ -212,7 +221,7 @@ xfs_dir2_data_verify( * format buffer or a data format buffer on readahead. */ static void -xfs_dir2_data_reada_verify( +xfs_dir3_data_reada_verify( struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; @@ -225,7 +234,8 @@ xfs_dir2_data_reada_verify( bp->b_ops->verify_read(bp); return; case cpu_to_be32(XFS_DIR2_DATA_MAGIC): - xfs_dir2_data_verify(bp); + case cpu_to_be32(XFS_DIR3_DATA_MAGIC): + xfs_dir3_data_verify(bp); return; default: XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, hdr); @@ -235,32 +245,56 @@ xfs_dir2_data_reada_verify( } static void -xfs_dir2_data_read_verify( +xfs_dir3_data_read_verify( struct xfs_buf *bp) { - xfs_dir2_data_verify(bp); + struct xfs_mount *mp = bp->b_target->bt_mount; + + if ((xfs_sb_version_hascrc(&mp->m_sb) && + !xfs_verify_cksum(bp->b_addr, BBTOB(bp->b_length), + XFS_DIR3_DATA_CRC_OFF)) || + !xfs_dir3_data_verify(bp)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr); + xfs_buf_ioerror(bp, EFSCORRUPTED); + } } static void -xfs_dir2_data_write_verify( +xfs_dir3_data_write_verify( struct xfs_buf *bp) { - xfs_dir2_data_verify(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_data_verify(bp)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr); + xfs_buf_ioerror(bp, EFSCORRUPTED); + return; + } + + if (!xfs_sb_version_hascrc(&mp->m_sb)) + return; + + if (bip) + hdr3->lsn = cpu_to_be64(bip->bli_item.li_lsn); + + xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_DIR3_DATA_CRC_OFF); } -const struct xfs_buf_ops xfs_dir2_data_buf_ops = { - .verify_read = xfs_dir2_data_read_verify, - .verify_write = xfs_dir2_data_write_verify, +const struct xfs_buf_ops xfs_dir3_data_buf_ops = { + .verify_read = xfs_dir3_data_read_verify, + .verify_write = xfs_dir3_data_write_verify, }; -static const struct xfs_buf_ops xfs_dir2_data_reada_buf_ops = { - .verify_read = xfs_dir2_data_reada_verify, - .verify_write = xfs_dir2_data_write_verify, +static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = { + .verify_read = xfs_dir3_data_reada_verify, + .verify_write = xfs_dir3_data_write_verify, }; int -xfs_dir2_data_read( +xfs_dir3_data_read( struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, @@ -268,18 +302,18 @@ xfs_dir2_data_read( struct xfs_buf **bpp) { return xfs_da_read_buf(tp, dp, bno, mapped_bno, bpp, - XFS_DATA_FORK, &xfs_dir2_data_buf_ops); + XFS_DATA_FORK, &xfs_dir3_data_buf_ops); } int -xfs_dir2_data_readahead( +xfs_dir3_data_readahead( struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, xfs_daddr_t mapped_bno) { return xfs_da_reada_buf(tp, dp, bno, mapped_bno, - XFS_DATA_FORK, &xfs_dir2_data_reada_buf_ops); + XFS_DATA_FORK, &xfs_dir3_data_reada_buf_ops); } /* @@ -309,6 +343,7 @@ xfs_dir2_data_freefind( * one we're looking for it has to be exact. */ ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)); for (dfp = &bf[0], seenzero = matched = 0; @@ -458,6 +493,7 @@ xfs_dir2_data_freescan( char *p; /* current entry pointer */ ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)); @@ -534,13 +570,12 @@ xfs_dir3_data_init( XFS_DATA_FORK); if (error) return error; - bp->b_ops = &xfs_dir2_data_buf_ops; + bp->b_ops = &xfs_dir3_data_buf_ops; /* * Initialize the header. */ hdr = bp->b_addr; - if (xfs_sb_version_hascrc(&mp->m_sb)) { struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr; @@ -591,6 +626,7 @@ xfs_dir2_data_log_entry( xfs_dir2_data_hdr_t *hdr = bp->b_addr; ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)); @@ -610,6 +646,7 @@ xfs_dir2_data_log_header( xfs_dir2_data_hdr_t *hdr = bp->b_addr; ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)); @@ -628,6 +665,7 @@ xfs_dir2_data_log_unused( xfs_dir2_data_hdr_t *hdr = bp->b_addr; ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)); @@ -675,7 +713,8 @@ xfs_dir2_data_make_free( /* * Figure out where the end of the data area is. */ - if (hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC)) + if (hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC)) endptr = (char *)hdr + mp->m_dirblksize; else { xfs_dir2_block_tail_t *btp; /* block tail */ @@ -857,6 +896,7 @@ xfs_dir2_data_use_free( hdr = bp->b_addr; ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) || hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)); ASSERT(be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG); diff --git a/fs/xfs/xfs_dir2_format.h b/fs/xfs/xfs_dir2_format.h index ec5044a92b70..0ac09502b830 100644 --- a/fs/xfs/xfs_dir2_format.h +++ b/fs/xfs/xfs_dir2_format.h @@ -283,7 +283,8 @@ struct xfs_dir3_data_hdr { static inline struct xfs_dir2_data_free * xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr) { - if (hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) { + if (hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) { struct xfs_dir3_data_hdr *hdr3 = (struct xfs_dir3_data_hdr *)hdr; return hdr3->best_free; } @@ -345,17 +346,6 @@ xfs_dir2_data_unused_tag_p(struct xfs_dir2_data_unused *dup) be16_to_cpu(dup->length) - sizeof(__be16)); } -static inline struct xfs_dir2_data_unused * -xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr) -{ - if (hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) { - return (struct xfs_dir2_data_unused *) - ((char *)hdr + sizeof(struct xfs_dir3_data_hdr)); - } - return (struct xfs_dir2_data_unused *) - ((char *)hdr + sizeof(struct xfs_dir2_data_hdr)); -} - static inline size_t xfs_dir3_data_hdr_size(bool dir3) { @@ -379,6 +369,13 @@ xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr) ((char *)hdr + xfs_dir3_data_entry_offset(hdr)); } +static inline struct xfs_dir2_data_unused * +xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr) +{ + return (struct xfs_dir2_data_unused *) + ((char *)hdr + xfs_dir3_data_entry_offset(hdr)); +} + /* * Offsets of . and .. in data space (always block 0) */ diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c index 979735b0c76d..c7dca950f768 100644 --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -149,7 +149,7 @@ xfs_dir2_block_to_leaf( int needlog; /* need to log block header */ int needscan; /* need to rescan bestfree */ xfs_trans_t *tp; /* transaction pointer */ - struct xfs_dir2_data_free *bf; + struct xfs_dir2_data_free *bf; trace_xfs_dir2_block_to_leaf(args); @@ -175,7 +175,7 @@ xfs_dir2_block_to_leaf( ASSERT(lbp != NULL); leaf = lbp->b_addr; hdr = dbp->b_addr; - xfs_dir2_data_check(dp, dbp); + xfs_dir3_data_check(dp, dbp); btp = xfs_dir2_block_tail_p(mp, hdr); blp = xfs_dir2_block_leaf_p(btp); bf = xfs_dir3_data_bestfree_p(hdr); @@ -204,8 +204,12 @@ xfs_dir2_block_to_leaf( /* * Fix up the block header, make it a data block. */ - dbp->b_ops = &xfs_dir2_data_buf_ops; - hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC); + dbp->b_ops = &xfs_dir3_data_buf_ops; + if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC)) + hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC); + else + hdr->magic = cpu_to_be32(XFS_DIR3_DATA_MAGIC); + if (needscan) xfs_dir2_data_freescan(mp, hdr, &needlog); /* @@ -221,7 +225,7 @@ xfs_dir2_block_to_leaf( if (needlog) xfs_dir2_data_log_header(tp, dbp); xfs_dir2_leaf_check(dp, lbp); - xfs_dir2_data_check(dp, dbp); + xfs_dir3_data_check(dp, dbp); xfs_dir2_leaf_log_bests(tp, lbp, 0, 0); return 0; } @@ -385,6 +389,7 @@ xfs_dir2_leaf_addname( __be16 *tagp; /* end of data entry */ xfs_trans_t *tp; /* transaction pointer */ xfs_dir2_db_t use_block; /* data block number */ + struct xfs_dir2_data_free *bf; /* bestfree table */ trace_xfs_dir2_leaf_addname(args); @@ -568,14 +573,15 @@ xfs_dir2_leaf_addname( else xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block); hdr = dbp->b_addr; - bestsp[use_block] = hdr->bestfree[0].length; + bf = xfs_dir3_data_bestfree_p(hdr); + bestsp[use_block] = bf[0].length; grown = 1; } else { /* * Already had space in some data block. * Just read that one in. */ - error = xfs_dir2_data_read(tp, dp, + error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(mp, use_block), -1, &dbp); if (error) { @@ -583,13 +589,14 @@ xfs_dir2_leaf_addname( return error; } hdr = dbp->b_addr; + bf = xfs_dir3_data_bestfree_p(hdr); grown = 0; } /* * Point to the biggest freespace in our data block. */ dup = (xfs_dir2_data_unused_t *) - ((char *)hdr + be16_to_cpu(hdr->bestfree[0].offset)); + ((char *)hdr + be16_to_cpu(bf[0].offset)); ASSERT(be16_to_cpu(dup->length) >= length); needscan = needlog = 0; /* @@ -622,8 +629,8 @@ xfs_dir2_leaf_addname( * If the bests table needs to be changed, do it. * Log the change unless we've already done that. */ - if (be16_to_cpu(bestsp[use_block]) != be16_to_cpu(hdr->bestfree[0].length)) { - bestsp[use_block] = hdr->bestfree[0].length; + if (be16_to_cpu(bestsp[use_block]) != be16_to_cpu(bf[0].length)) { + bestsp[use_block] = bf[0].length; if (!grown) xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block); } @@ -643,7 +650,7 @@ 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_dir2_data_check(dp, dbp); + xfs_dir3_data_check(dp, dbp); return 0; } @@ -967,7 +974,7 @@ xfs_dir2_leaf_readbuf( * Read the directory block starting at the first mapping. */ mip->curdb = xfs_dir2_da_to_db(mp, map->br_startoff); - error = xfs_dir2_data_read(NULL, dp, map->br_startoff, + error = xfs_dir3_data_read(NULL, dp, map->br_startoff, map->br_blockcount >= mp->m_dirblkfsbs ? XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1, &bp); @@ -996,7 +1003,7 @@ xfs_dir2_leaf_readbuf( */ if (i > mip->ra_current && map[mip->ra_index].br_blockcount >= mp->m_dirblkfsbs) { - xfs_dir2_data_readahead(NULL, dp, + xfs_dir3_data_readahead(NULL, dp, map[mip->ra_index].br_startoff + mip->ra_offset, XFS_FSB_TO_DADDR(mp, map[mip->ra_index].br_startblock + @@ -1009,7 +1016,7 @@ xfs_dir2_leaf_readbuf( * use our mapping, but this is a very rare case. */ else if (i > mip->ra_current) { - xfs_dir2_data_readahead(NULL, dp, + xfs_dir3_data_readahead(NULL, dp, map[mip->ra_index].br_startoff + mip->ra_offset, -1); mip->ra_current = i; @@ -1135,17 +1142,17 @@ xfs_dir2_leaf_getdents( ASSERT(xfs_dir2_byte_to_db(mp, curoff) == map_info->curdb); hdr = bp->b_addr; - xfs_dir2_data_check(dp, bp); + xfs_dir3_data_check(dp, bp); /* * Find our position in the block. */ - ptr = (char *)(hdr + 1); + ptr = (char *)xfs_dir3_data_entry_p(hdr); byteoff = xfs_dir2_byte_to_off(mp, curoff); /* * Skip past the header. */ if (byteoff == 0) - curoff += (uint)sizeof(*hdr); + curoff += xfs_dir3_data_entry_offset(hdr); /* * Skip past entries until we reach our offset. */ @@ -1481,7 +1488,7 @@ xfs_dir2_leaf_lookup_int( if (newdb != curdb) { if (dbp) xfs_trans_brelse(tp, dbp); - error = xfs_dir2_data_read(tp, dp, + error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(mp, newdb), -1, &dbp); if (error) { @@ -1522,7 +1529,7 @@ xfs_dir2_leaf_lookup_int( ASSERT(cidb != -1); if (cidb != curdb) { xfs_trans_brelse(tp, dbp); - error = xfs_dir2_data_read(tp, dp, + error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(mp, cidb), -1, &dbp); if (error) { @@ -1568,6 +1575,7 @@ xfs_dir2_leaf_removename( int needscan; /* need to rescan data frees */ xfs_dir2_data_off_t oldbest; /* old value of best free */ xfs_trans_t *tp; /* transaction pointer */ + struct xfs_dir2_data_free *bf; /* bestfree table */ trace_xfs_dir2_leaf_removename(args); @@ -1582,7 +1590,8 @@ xfs_dir2_leaf_removename( mp = dp->i_mount; leaf = lbp->b_addr; hdr = dbp->b_addr; - xfs_dir2_data_check(dp, dbp); + bf = xfs_dir3_data_bestfree_p(hdr); + xfs_dir3_data_check(dp, dbp); /* * Point to the leaf entry, use that to point to the data entry. */ @@ -1591,7 +1600,7 @@ xfs_dir2_leaf_removename( dep = (xfs_dir2_data_entry_t *) ((char *)hdr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address))); needscan = needlog = 0; - oldbest = be16_to_cpu(hdr->bestfree[0].length); + oldbest = be16_to_cpu(bf[0].length); ltp = xfs_dir2_leaf_tail_p(mp, leaf); bestsp = xfs_dir2_leaf_bests_p(ltp); ASSERT(be16_to_cpu(bestsp[db]) == oldbest); @@ -1620,16 +1629,16 @@ xfs_dir2_leaf_removename( * If the longest freespace in the data block has changed, * put the new value in the bests table and log that. */ - if (be16_to_cpu(hdr->bestfree[0].length) != oldbest) { - bestsp[db] = hdr->bestfree[0].length; + if (be16_to_cpu(bf[0].length) != oldbest) { + bestsp[db] = bf[0].length; xfs_dir2_leaf_log_bests(tp, lbp, db, db); } - xfs_dir2_data_check(dp, dbp); + xfs_dir3_data_check(dp, dbp); /* * If the data block is now empty then get rid of the data block. */ - if (be16_to_cpu(hdr->bestfree[0].length) == - mp->m_dirblksize - (uint)sizeof(*hdr)) { + if (be16_to_cpu(bf[0].length) == + mp->m_dirblksize - xfs_dir3_data_entry_offset(hdr)) { ASSERT(db != mp->m_dirdatablk); if ((error = xfs_dir2_shrink_inode(args, db, dbp))) { /* @@ -1809,7 +1818,7 @@ xfs_dir2_leaf_trim_data( /* * Read the offending data block. We need its buffer. */ - error = xfs_dir2_data_read(tp, dp, xfs_dir2_db_to_da(mp, db), -1, &dbp); + error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(mp, db), -1, &dbp); if (error) return error; @@ -1819,10 +1828,12 @@ xfs_dir2_leaf_trim_data( #ifdef DEBUG { struct xfs_dir2_data_hdr *hdr = dbp->b_addr; + struct xfs_dir2_data_free *bf = xfs_dir3_data_bestfree_p(hdr); - ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC)); - ASSERT(be16_to_cpu(hdr->bestfree[0].length) == - mp->m_dirblksize - (uint)sizeof(*hdr)); + ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC)); + ASSERT(be16_to_cpu(bf[0].length) == + mp->m_dirblksize - xfs_dir3_data_entry_offset(hdr)); ASSERT(db == be32_to_cpu(ltp->bestcount) - 1); } #endif diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c index 0fe39b9fde7e..abf617d5060b 100644 --- a/fs/xfs/xfs_dir2_node.c +++ b/fs/xfs/xfs_dir2_node.c @@ -753,13 +753,13 @@ xfs_dir2_leafn_lookup_for_entry( ASSERT(state->extravalid); curbp = state->extrablk.bp; } else { - error = xfs_dir2_data_read(tp, dp, + error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(mp, newdb), -1, &curbp); if (error) return error; } - xfs_dir2_data_check(dp, curbp); + xfs_dir3_data_check(dp, curbp); curdb = newdb; } /* @@ -787,7 +787,7 @@ xfs_dir2_leafn_lookup_for_entry( state->extrablk.index = (int)((char *)dep - (char *)curbp->b_addr); state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir2_data_buf_ops; + curbp->b_ops = &xfs_dir3_data_buf_ops; if (cmp == XFS_CMP_EXACT) return XFS_ERROR(EEXIST); } @@ -802,7 +802,7 @@ xfs_dir2_leafn_lookup_for_entry( state->extrablk.index = -1; state->extrablk.blkno = curdb; state->extrablk.magic = XFS_DIR2_DATA_MAGIC; - curbp->b_ops = &xfs_dir2_data_buf_ops; + curbp->b_ops = &xfs_dir3_data_buf_ops; } else { /* If the curbp is not the CI match block, drop it */ if (state->extrablk.bp != curbp) @@ -1152,6 +1152,7 @@ xfs_dir2_leafn_remove( int needlog; /* need to log data header */ int needscan; /* need to rescan data frees */ xfs_trans_t *tp; /* transaction pointer */ + struct xfs_dir2_data_free *bf; /* bestfree table */ trace_xfs_dir2_leafn_remove(args, index); @@ -1186,7 +1187,8 @@ xfs_dir2_leafn_remove( dbp = dblk->bp; hdr = dbp->b_addr; dep = (xfs_dir2_data_entry_t *)((char *)hdr + off); - longest = be16_to_cpu(hdr->bestfree[0].length); + bf = xfs_dir3_data_bestfree_p(hdr); + longest = be16_to_cpu(bf[0].length); needlog = needscan = 0; xfs_dir2_data_make_free(tp, dbp, off, xfs_dir2_data_entsize(dep->namelen), &needlog, &needscan); @@ -1198,12 +1200,12 @@ xfs_dir2_leafn_remove( xfs_dir2_data_freescan(mp, hdr, &needlog); if (needlog) xfs_dir2_data_log_header(tp, dbp); - xfs_dir2_data_check(dp, dbp); + xfs_dir3_data_check(dp, dbp); /* * If the longest data block freespace changes, need to update * the corresponding freeblock entry. */ - if (longest < be16_to_cpu(hdr->bestfree[0].length)) { + if (longest < be16_to_cpu(bf[0].length)) { int error; /* error return value */ struct xfs_buf *fbp; /* freeblock buffer */ xfs_dir2_db_t fdb; /* freeblock block number */ @@ -1232,12 +1234,13 @@ xfs_dir2_leafn_remove( * Calculate which entry we need to fix. */ findex = xfs_dir2_db_to_fdindex(mp, db); - longest = be16_to_cpu(hdr->bestfree[0].length); + longest = be16_to_cpu(bf[0].length); /* * If the data block is now empty we can get rid of it * (usually). */ - if (longest == mp->m_dirblksize - (uint)sizeof(*hdr)) { + if (longest == mp->m_dirblksize - + xfs_dir3_data_entry_offset(hdr)) { /* * Try to punch out the data block. */ @@ -1611,6 +1614,7 @@ xfs_dir2_node_addname_int( xfs_trans_t *tp; /* transaction pointer */ __be16 *bests; struct xfs_dir3_icfree_hdr freehdr; + struct xfs_dir2_data_free *bf; dp = args->dp; mp = dp->i_mount; @@ -1868,7 +1872,8 @@ xfs_dir2_node_addname_int( * change again. */ hdr = dbp->b_addr; - bests[findex] = hdr->bestfree[0].length; + bf = xfs_dir3_data_bestfree_p(hdr); + bests[findex] = bf[0].length; logfree = 1; } /* @@ -1884,19 +1889,20 @@ xfs_dir2_node_addname_int( /* * Read the data block in. */ - error = xfs_dir2_data_read(tp, dp, xfs_dir2_db_to_da(mp, dbno), + error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(mp, dbno), -1, &dbp); if (error) return error; hdr = dbp->b_addr; + bf = xfs_dir3_data_bestfree_p(hdr); logfree = 0; } - ASSERT(be16_to_cpu(hdr->bestfree[0].length) >= length); + ASSERT(be16_to_cpu(bf[0].length) >= length); /* * Point to the existing unused space. */ dup = (xfs_dir2_data_unused_t *) - ((char *)hdr + be16_to_cpu(hdr->bestfree[0].offset)); + ((char *)hdr + be16_to_cpu(bf[0].offset)); needscan = needlog = 0; /* * Mark the first part of the unused space, inuse for us. @@ -1928,8 +1934,8 @@ xfs_dir2_node_addname_int( * If the freespace entry is now wrong, update it. */ bests = xfs_dir3_free_bests_p(mp, free); /* gcc is so stupid */ - if (be16_to_cpu(bests[findex]) != be16_to_cpu(hdr->bestfree[0].length)) { - bests[findex] = hdr->bestfree[0].length; + if (be16_to_cpu(bests[findex]) != be16_to_cpu(bf[0].length)) { + bests[findex] = bf[0].length; logfree = 1; } /* @@ -2119,7 +2125,8 @@ xfs_dir2_node_replace( * Point to the data entry. */ hdr = state->extrablk.bp->b_addr; - ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC)); + ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) || + hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC)); dep = (xfs_dir2_data_entry_t *) ((char *)hdr + xfs_dir2_dataptr_to_off(state->mp, be32_to_cpu(lep->address))); diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h index e6f2e0a7bb65..910e64413316 100644 --- a/fs/xfs/xfs_dir2_priv.h +++ b/fs/xfs/xfs_dir2_priv.h @@ -43,17 +43,17 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, /* xfs_dir2_data.c */ #ifdef DEBUG -#define xfs_dir2_data_check(dp,bp) __xfs_dir2_data_check(dp, bp); +#define xfs_dir3_data_check(dp,bp) __xfs_dir3_data_check(dp, bp); #else -#define xfs_dir2_data_check(dp,bp) +#define xfs_dir3_data_check(dp,bp) #endif -extern const struct xfs_buf_ops xfs_dir2_data_buf_ops; +extern const struct xfs_buf_ops xfs_dir3_data_buf_ops; -extern int __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp); -extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp, +extern int __xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp); +extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp); -extern int xfs_dir2_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp, +extern int xfs_dir3_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, xfs_daddr_t mapped_bno); extern struct xfs_dir2_data_free * diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index f03bf1a456fb..cf6eacd4169a 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -893,7 +893,7 @@ xfs_dir_open( */ mode = xfs_ilock_map_shared(ip); if (ip->i_d.di_nextents > 0) - xfs_dir2_data_readahead(NULL, ip, 0, -1); + xfs_dir3_data_readahead(NULL, ip, 0, -1); xfs_iunlock(ip, mode); return 0; } |