diff options
| -rw-r--r-- | fs/xfs/xfs_btree.c | 33 | ||||
| -rw-r--r-- | fs/xfs/xfs_btree.h | 11 | ||||
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 37 |
3 files changed, 48 insertions, 33 deletions
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index e53e317b158..121ea99e615 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -853,18 +853,22 @@ xfs_btree_set_sibling( } } -STATIC void +void xfs_btree_init_block( - struct xfs_btree_cur *cur, - int level, - int numrecs, - struct xfs_btree_block *new) /* new block */ + struct xfs_mount *mp, + struct xfs_buf *bp, + __u32 magic, + __u16 level, + __u16 numrecs, + unsigned int flags) { - new->bb_magic = cpu_to_be32(xfs_magics[cur->bc_btnum]); + struct xfs_btree_block *new = XFS_BUF_TO_BLOCK(bp); + + new->bb_magic = cpu_to_be32(magic); new->bb_level = cpu_to_be16(level); new->bb_numrecs = cpu_to_be16(numrecs); - if (cur->bc_flags & XFS_BTREE_LONG_PTRS) { + if (flags & XFS_BTREE_LONG_PTRS) { new->bb_u.l.bb_leftsib = cpu_to_be64(NULLDFSBNO); new->bb_u.l.bb_rightsib = cpu_to_be64(NULLDFSBNO); } else { @@ -873,6 +877,17 @@ xfs_btree_init_block( } } +STATIC void +xfs_btree_init_block_cur( + struct xfs_btree_cur *cur, + int level, + int numrecs, + struct xfs_buf *bp) +{ + xfs_btree_init_block(cur->bc_mp, bp, xfs_magics[cur->bc_btnum], + level, numrecs, cur->bc_flags); +} + /* * Return true if ptr is the last record in the btree and * we need to track updateѕ to this record. The decision @@ -2183,7 +2198,7 @@ xfs_btree_split( goto error0; /* Fill in the btree header for the new right block. */ - xfs_btree_init_block(cur, xfs_btree_get_level(left), 0, right); + xfs_btree_init_block_cur(cur, xfs_btree_get_level(left), 0, rbp); /* * Split the entries between the old and the new block evenly. @@ -2492,7 +2507,7 @@ xfs_btree_new_root( nptr = 2; } /* Fill in the new block's btree header and log it. */ - xfs_btree_init_block(cur, cur->bc_nlevels, 2, new); + xfs_btree_init_block_cur(cur, cur->bc_nlevels, 2, nbp); xfs_btree_log_block(cur, nbp, XFS_BB_ALL_BITS); ASSERT(!xfs_btree_ptr_is_null(cur, &lptr) && !xfs_btree_ptr_is_null(cur, &rptr)); diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index 5b240de104c..c9cf2d00e23 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -378,6 +378,17 @@ xfs_btree_reada_bufs( xfs_agblock_t agbno, /* allocation group block number */ xfs_extlen_t count); /* count of filesystem blocks */ +/* + * Initialise a new btree block header + */ +void +xfs_btree_init_block( + struct xfs_mount *mp, + struct xfs_buf *bp, + __u32 magic, + __u16 level, + __u16 numrecs, + unsigned int flags); /* * Common btree core entry points. diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 7b0a997cf62..a5034af35db 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -125,7 +125,6 @@ xfs_growfs_data_private( xfs_extlen_t agsize; xfs_extlen_t tmpsize; xfs_alloc_rec_t *arec; - struct xfs_btree_block *block; xfs_buf_t *bp; int bucket; int dpct; @@ -263,17 +262,14 @@ xfs_growfs_data_private( error = ENOMEM; goto error0; } - block = XFS_BUF_TO_BLOCK(bp); - memset(block, 0, mp->m_sb.sb_blocksize); - block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC); - block->bb_level = 0; - block->bb_numrecs = cpu_to_be16(1); - block->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK); - block->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK); - arec = XFS_ALLOC_REC_ADDR(mp, block, 1); + xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); + xfs_btree_init_block(mp, bp, XFS_ABTB_MAGIC, 0, 1, 0); + + arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1); arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); arec->ar_blockcount = cpu_to_be32( agsize - be32_to_cpu(arec->ar_startblock)); + error = xfs_bwrite(bp); xfs_buf_relse(bp); if (error) @@ -289,18 +285,15 @@ xfs_growfs_data_private( error = ENOMEM; goto error0; } - block = XFS_BUF_TO_BLOCK(bp); - memset(block, 0, mp->m_sb.sb_blocksize); - block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC); - block->bb_level = 0; - block->bb_numrecs = cpu_to_be16(1); - block->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK); - block->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK); - arec = XFS_ALLOC_REC_ADDR(mp, block, 1); + xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); + xfs_btree_init_block(mp, bp, XFS_ABTC_MAGIC, 0, 1, 0); + + arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1); arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); arec->ar_blockcount = cpu_to_be32( agsize - be32_to_cpu(arec->ar_startblock)); nfree += be32_to_cpu(arec->ar_blockcount); + error = xfs_bwrite(bp); xfs_buf_relse(bp); if (error) @@ -316,13 +309,9 @@ xfs_growfs_data_private( error = ENOMEM; goto error0; } - block = XFS_BUF_TO_BLOCK(bp); - memset(block, 0, mp->m_sb.sb_blocksize); - block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC); - block->bb_level = 0; - block->bb_numrecs = 0; - block->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK); - block->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK); + xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); + xfs_btree_init_block(mp, bp, XFS_IBT_MAGIC, 0, 0, 0); + error = xfs_bwrite(bp); xfs_buf_relse(bp); if (error) |