diff options
Diffstat (limited to 'fs/xfs/xfs_buf.c')
| -rw-r--r-- | fs/xfs/xfs_buf.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index a4beb421018a..a843873b0954 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -202,6 +202,8 @@ xfs_buf_alloc( bp->b_io_length = numblks; bp->b_flags = flags; bp->b_bn = blkno; + bp->b_map.bm_bn = blkno; + bp->b_map.bm_len = numblks; atomic_set(&bp->b_pin_count, 0); init_waitqueue_head(&bp->b_waiters); @@ -327,8 +329,9 @@ xfs_buf_allocate_memory( } use_alloc_page: - start = BBTOB(bp->b_bn) >> PAGE_SHIFT; - end = (BBTOB(bp->b_bn + bp->b_length) + PAGE_SIZE - 1) >> PAGE_SHIFT; + start = BBTOB(bp->b_map.bm_bn) >> PAGE_SHIFT; + end = (BBTOB(bp->b_map.bm_bn + bp->b_length) + PAGE_SIZE - 1) + >> PAGE_SHIFT; page_count = end - start; error = _xfs_buf_get_pages(bp, page_count, flags); if (unlikely(error)) @@ -560,8 +563,6 @@ xfs_buf_get( if (bp != new_bp) xfs_buf_free(new_bp); - bp->b_io_length = bp->b_length; - found: if (!bp->b_addr) { error = _xfs_buf_map_pages(bp, flags); @@ -584,7 +585,7 @@ _xfs_buf_read( xfs_buf_flags_t flags) { ASSERT(!(flags & XBF_WRITE)); - ASSERT(bp->b_bn != XFS_BUF_DADDR_NULL); + ASSERT(bp->b_map.bm_bn != XFS_BUF_DADDR_NULL); bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); @@ -665,8 +666,8 @@ xfs_buf_read_uncached( return NULL; /* set up the buffer for a read IO */ - XFS_BUF_SET_ADDR(bp, daddr); - XFS_BUF_READ(bp); + bp->b_map.bm_bn = daddr; + bp->b_flags |= XBF_READ; xfsbdstrat(target->bt_mount, bp); error = xfs_buf_iowait(bp); @@ -695,6 +696,8 @@ xfs_buf_set_empty( bp->b_length = numblks; bp->b_io_length = numblks; bp->b_bn = XFS_BUF_DADDR_NULL; + bp->b_map.bm_bn = XFS_BUF_DADDR_NULL; + bp->b_map.bm_len = bp->b_length; } static inline struct page * @@ -1159,7 +1162,7 @@ _xfs_buf_ioapply( struct bio *bio; int offset = bp->b_offset; int size = BBTOB(bp->b_io_length); - sector_t sector = bp->b_bn; + sector_t sector = bp->b_map.bm_bn; total_nr_pages = bp->b_page_count; map_i = 0; @@ -1564,7 +1567,7 @@ xfs_buf_cmp( struct xfs_buf *bp = container_of(b, struct xfs_buf, b_list); xfs_daddr_t diff; - diff = ap->b_bn - bp->b_bn; + diff = ap->b_map.bm_bn - bp->b_map.bm_bn; if (diff < 0) return -1; if (diff > 0) |