xfs: remove iomap_delta
The iomap_delta field in struct xfs_iomap just contains the
difference between the offset passed to xfs_iomap and the
iomap_offset. Just calculate it in the only caller that cares.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 49dec21..577d0b4 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1512,9 +1512,11 @@
}
if (direct || size > (1 << inode->i_blkbits)) {
- ASSERT(iomap.iomap_bsize - iomap.iomap_delta > 0);
+ xfs_off_t iomap_delta = offset - iomap.iomap_offset;
+
+ ASSERT(iomap.iomap_bsize - iomap_delta > 0);
offset = min_t(xfs_off_t,
- iomap.iomap_bsize - iomap.iomap_delta, size);
+ iomap.iomap_bsize - iomap_delta, size);
bh_result->b_size = (ssize_t)min_t(xfs_off_t, LONG_MAX, offset);
}
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 7327d3f..c6b409e 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -68,7 +68,6 @@
xfs_fsblock_t start_block;
iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff);
- iomapp->iomap_delta = offset - iomapp->iomap_offset;
iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount);
iomapp->iomap_flags = flags;
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index a85fa90..db92996 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -72,7 +72,6 @@
xfs_daddr_t iomap_bn; /* first 512B blk of mapping */
xfs_off_t iomap_offset; /* offset of mapping, bytes */
xfs_off_t iomap_bsize; /* size of mapping, bytes */
- xfs_off_t iomap_delta; /* offset into mapping, bytes */
iomap_flags_t iomap_flags;
} xfs_iomap_t;
