diff options
Diffstat (limited to 'src/block/block_write.c')
| -rw-r--r-- | src/block/block_write.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/block/block_write.c b/src/block/block_write.c index 23f4d7650b9..4c6ac198fe4 100644 --- a/src/block/block_write.c +++ b/src/block/block_write.c @@ -203,11 +203,18 @@ __wt_block_write_off(WT_SESSION_IMPL *session, WT_BLOCK *block, WT_FH *fh; size_t align_size; wt_off_t offset; + uint32_t cksum; bool local_locked; blk = WT_BLOCK_HEADER_REF(buf->mem); fh = block->fh; + /* + * Swap the page-header as needed; this doesn't belong here, but it's + * the best place to catch all callers. + */ + __wt_page_header_byteswap(buf->mem); + /* Buffers should be aligned for writing. */ if (!F_ISSET(buf, WT_ITEM_ALIGNED)) { WT_ASSERT(session, F_ISSET(buf, WT_ITEM_ALIGNED)); @@ -255,13 +262,21 @@ __wt_block_write_off(WT_SESSION_IMPL *session, WT_BLOCK *block, * because they're not compressed, both to give salvage a quick test * of whether a block is useful and to give us a test so we don't lose * the first WT_BLOCK_COMPRESS_SKIP bytes without noticing. + * + * Checksum a little-endian version of the header, and write everything + * in little-endian format. The checksum is (potentially) returned in a + * big-endian format, swap it into place in a separate step. */ blk->flags = 0; if (data_cksum) F_SET(blk, WT_BLOCK_DATA_CKSUM); blk->cksum = 0; - blk->cksum = __wt_cksum( + __wt_block_header_byteswap(blk); + blk->cksum = cksum = __wt_cksum( buf->mem, data_cksum ? align_size : WT_BLOCK_COMPRESS_SKIP); +#ifdef WORDS_BIGENDIAN + blk->cksum = __wt_bswap32(blk->cksum); +#endif /* Pre-allocate some number of extension structures. */ WT_RET(__wt_block_ext_prealloc(session, 5)); @@ -325,11 +340,11 @@ __wt_block_write_off(WT_SESSION_IMPL *session, WT_BLOCK *block, WT_RET(__wt_verbose(session, WT_VERB_WRITE, "off %" PRIuMAX ", size %" PRIuMAX ", cksum %" PRIu32, - (uintmax_t)offset, (uintmax_t)align_size, blk->cksum)); + (uintmax_t)offset, (uintmax_t)align_size, cksum)); *offsetp = offset; *sizep = WT_STORE_SIZE(align_size); - *cksump = blk->cksum; + *cksump = cksum; - return (ret); + return (0); } |