diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_dir2_leaf.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_dir2_leaf.c | 137 |
1 files changed, 38 insertions, 99 deletions
diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c index 1728a3e6f5cf..9c2a0a13ed61 100644 --- a/fs/xfs/libxfs/xfs_dir2_leaf.c +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c @@ -142,41 +142,22 @@ xfs_dir3_leaf_check_int( */ static xfs_failaddr_t xfs_dir3_leaf_verify( - struct xfs_buf *bp, - uint16_t magic) + struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; struct xfs_dir2_leaf *leaf = bp->b_addr; + xfs_failaddr_t fa; - ASSERT(magic == XFS_DIR2_LEAF1_MAGIC || magic == XFS_DIR2_LEAFN_MAGIC); - - if (xfs_sb_version_hascrc(&mp->m_sb)) { - struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr; - uint16_t magic3; - - magic3 = (magic == XFS_DIR2_LEAF1_MAGIC) ? XFS_DIR3_LEAF1_MAGIC - : XFS_DIR3_LEAFN_MAGIC; - - if (leaf3->info.hdr.magic != cpu_to_be16(magic3)) - return __this_address; - if (!uuid_equal(&leaf3->info.uuid, &mp->m_sb.sb_meta_uuid)) - return __this_address; - if (be64_to_cpu(leaf3->info.blkno) != bp->b_bn) - return __this_address; - if (!xfs_log_check_lsn(mp, be64_to_cpu(leaf3->info.lsn))) - return __this_address; - } else { - if (leaf->hdr.info.magic != cpu_to_be16(magic)) - return __this_address; - } + fa = xfs_da3_blkinfo_verify(bp, bp->b_addr); + if (fa) + return fa; return xfs_dir3_leaf_check_int(mp, NULL, NULL, leaf); } static void -__read_verify( - struct xfs_buf *bp, - uint16_t magic) +xfs_dir3_leaf_read_verify( + struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; xfs_failaddr_t fa; @@ -185,23 +166,22 @@ __read_verify( !xfs_buf_verify_cksum(bp, XFS_DIR3_LEAF_CRC_OFF)) xfs_verifier_error(bp, -EFSBADCRC, __this_address); else { - fa = xfs_dir3_leaf_verify(bp, magic); + fa = xfs_dir3_leaf_verify(bp); if (fa) xfs_verifier_error(bp, -EFSCORRUPTED, fa); } } static void -__write_verify( - struct xfs_buf *bp, - uint16_t magic) +xfs_dir3_leaf_write_verify( + struct xfs_buf *bp) { struct xfs_mount *mp = bp->b_target->bt_mount; struct xfs_buf_log_item *bip = bp->b_log_item; struct xfs_dir3_leaf_hdr *hdr3 = bp->b_addr; xfs_failaddr_t fa; - fa = xfs_dir3_leaf_verify(bp, magic); + fa = xfs_dir3_leaf_verify(bp); if (fa) { xfs_verifier_error(bp, -EFSCORRUPTED, fa); return; @@ -216,60 +196,22 @@ __write_verify( xfs_buf_update_cksum(bp, XFS_DIR3_LEAF_CRC_OFF); } -static xfs_failaddr_t -xfs_dir3_leaf1_verify( - struct xfs_buf *bp) -{ - return xfs_dir3_leaf_verify(bp, XFS_DIR2_LEAF1_MAGIC); -} - -static void -xfs_dir3_leaf1_read_verify( - struct xfs_buf *bp) -{ - __read_verify(bp, XFS_DIR2_LEAF1_MAGIC); -} - -static void -xfs_dir3_leaf1_write_verify( - struct xfs_buf *bp) -{ - __write_verify(bp, XFS_DIR2_LEAF1_MAGIC); -} - -static xfs_failaddr_t -xfs_dir3_leafn_verify( - struct xfs_buf *bp) -{ - return xfs_dir3_leaf_verify(bp, XFS_DIR2_LEAFN_MAGIC); -} - -static void -xfs_dir3_leafn_read_verify( - struct xfs_buf *bp) -{ - __read_verify(bp, XFS_DIR2_LEAFN_MAGIC); -} - -static void -xfs_dir3_leafn_write_verify( - struct xfs_buf *bp) -{ - __write_verify(bp, XFS_DIR2_LEAFN_MAGIC); -} - const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = { .name = "xfs_dir3_leaf1", - .verify_read = xfs_dir3_leaf1_read_verify, - .verify_write = xfs_dir3_leaf1_write_verify, - .verify_struct = xfs_dir3_leaf1_verify, + .magic16 = { cpu_to_be16(XFS_DIR2_LEAF1_MAGIC), + cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) }, + .verify_read = xfs_dir3_leaf_read_verify, + .verify_write = xfs_dir3_leaf_write_verify, + .verify_struct = xfs_dir3_leaf_verify, }; const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = { .name = "xfs_dir3_leafn", - .verify_read = xfs_dir3_leafn_read_verify, - .verify_write = xfs_dir3_leafn_write_verify, - .verify_struct = xfs_dir3_leafn_verify, + .magic16 = { cpu_to_be16(XFS_DIR2_LEAFN_MAGIC), + cpu_to_be16(XFS_DIR3_LEAFN_MAGIC) }, + .verify_read = xfs_dir3_leaf_read_verify, + .verify_write = xfs_dir3_leaf_write_verify, + .verify_struct = xfs_dir3_leaf_verify, }; int @@ -621,43 +563,40 @@ xfs_dir3_leaf_find_entry( */ int /* error */ xfs_dir2_leaf_addname( - xfs_da_args_t *args) /* operation arguments */ + struct xfs_da_args *args) /* operation arguments */ { + struct xfs_dir3_icleaf_hdr leafhdr; + struct xfs_trans *tp = args->trans; __be16 *bestsp; /* freespace table in leaf */ - int compact; /* need to compact leaves */ - xfs_dir2_data_hdr_t *hdr; /* data block header */ + __be16 *tagp; /* end of data entry */ 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 */ + struct xfs_buf *lbp; /* leaf's buffer */ + struct xfs_dir2_leaf *leaf; /* leaf structure */ + struct xfs_inode *dp = args->dp; /* incore directory inode */ + struct xfs_dir2_data_hdr *hdr; /* data block header */ + struct xfs_dir2_data_entry *dep; /* data block entry */ + struct xfs_dir2_leaf_entry *lep; /* leaf entry table pointer */ + struct xfs_dir2_leaf_entry *ents; + struct xfs_dir2_data_unused *dup; /* data unused entry */ + struct xfs_dir2_leaf_tail *ltp; /* leaf tail pointer */ + struct xfs_dir2_data_free *bf; /* bestfree table */ + int compact; /* need to compact leaves */ int error; /* error return value */ int grown; /* allocated new data block */ - int highstale; /* index of next stale leaf */ + int highstale = 0; /* index of next stale leaf */ int i; /* temporary, index */ int index; /* leaf table position */ - 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 */ int lfloglow; /* low leaf logging index */ int lfloghigh; /* high leaf logging index */ - int lowstale; /* index of prev stale leaf */ - xfs_dir2_leaf_tail_t *ltp; /* leaf tail pointer */ + int lowstale = 0; /* index of prev stale leaf */ int needbytes; /* leaf block bytes needed */ int needlog; /* need to log data header */ int needscan; /* need to rescan data free */ - __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 */ - struct xfs_dir2_leaf_entry *ents; - struct xfs_dir3_icleaf_hdr leafhdr; trace_xfs_dir2_leaf_addname(args); - dp = args->dp; - tp = args->trans; - error = xfs_dir3_leaf_read(tp, dp, args->geo->leafblk, -1, &lbp); if (error) return error; |