From 8699bb0a480193e62d5ccb9c86e2c26b407090a8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 28 Apr 2010 12:28:54 +0000 Subject: xfs: report iomap_offset and iomap_bsize in block base Report the iomap_offset and iomap_bsize fields of struct xfs_iomap in terms of fsblocks instead of in terms of disk blocks. Shift the byte conversions into the callers temporarily, but they will disappear or get cleaned up later. Signed-off-by: Christoph Hellwig Signed-off-by: Alex Elder --- fs/xfs/linux-2.6/xfs_aops.c | 36 +++++++++++++++++++++++++----------- fs/xfs/xfs_iomap.c | 5 ++--- 2 files changed, 27 insertions(+), 14 deletions(-) (limited to 'fs/xfs') diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 577d0b448732..303a779406c0 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -320,11 +320,16 @@ xfs_map_blocks( STATIC int xfs_iomap_valid( + struct inode *inode, xfs_iomap_t *iomapp, loff_t offset) { - return offset >= iomapp->iomap_offset && - offset < iomapp->iomap_offset + iomapp->iomap_bsize; + struct xfs_mount *mp = XFS_I(inode)->i_mount; + xfs_off_t iomap_offset = XFS_FSB_TO_B(mp, iomapp->iomap_offset); + xfs_off_t iomap_bsize = XFS_FSB_TO_B(mp, iomapp->iomap_bsize); + + return offset >= iomap_offset && + offset < iomap_offset + iomap_bsize; } /* @@ -561,11 +566,13 @@ xfs_map_buffer( xfs_off_t offset) { sector_t bn; + struct xfs_mount *m = XFS_I(inode)->i_mount; + xfs_off_t iomap_offset = XFS_FSB_TO_B(m, mp->iomap_offset); ASSERT(mp->iomap_bn != IOMAP_DADDR_NULL); bn = (mp->iomap_bn >> (inode->i_blkbits - BBSHIFT)) + - ((offset - mp->iomap_offset) >> inode->i_blkbits); + ((offset - iomap_offset) >> inode->i_blkbits); ASSERT(bn || XFS_IS_REALTIME_INODE(XFS_I(inode))); @@ -806,7 +813,7 @@ xfs_convert_page( else type = IOMAP_DELAY; - if (!xfs_iomap_valid(mp, offset)) { + if (!xfs_iomap_valid(inode, mp, offset)) { done = 1; continue; } @@ -1116,7 +1123,7 @@ xfs_page_state_convert( } if (iomap_valid) - iomap_valid = xfs_iomap_valid(&iomap, offset); + iomap_valid = xfs_iomap_valid(inode, &iomap, offset); /* * First case, map an unwritten extent and prepare for @@ -1171,7 +1178,7 @@ xfs_page_state_convert( &iomap, flags); if (err) goto error; - iomap_valid = xfs_iomap_valid(&iomap, offset); + iomap_valid = xfs_iomap_valid(inode, &iomap, offset); } if (iomap_valid) { xfs_map_at_offset(inode, bh, &iomap, offset); @@ -1201,7 +1208,7 @@ xfs_page_state_convert( &iomap, flags); if (err) goto error; - iomap_valid = xfs_iomap_valid(&iomap, offset); + iomap_valid = xfs_iomap_valid(inode, &iomap, offset); } /* @@ -1241,7 +1248,11 @@ xfs_page_state_convert( xfs_start_page_writeback(page, 1, count); if (ioend && iomap_valid) { - offset = (iomap.iomap_offset + iomap.iomap_bsize - 1) >> + struct xfs_mount *m = XFS_I(inode)->i_mount; + xfs_off_t iomap_offset = XFS_FSB_TO_B(m, iomap.iomap_offset); + xfs_off_t iomap_bsize = XFS_FSB_TO_B(m, iomap.iomap_bsize); + + offset = (iomap_offset + iomap_bsize - 1) >> PAGE_CACHE_SHIFT; tlast = min_t(pgoff_t, offset, last_index); xfs_cluster_write(inode, page->index + 1, &iomap, &ioend, @@ -1512,11 +1523,14 @@ __xfs_get_blocks( } if (direct || size > (1 << inode->i_blkbits)) { - xfs_off_t iomap_delta = offset - iomap.iomap_offset; + struct xfs_mount *mp = XFS_I(inode)->i_mount; + xfs_off_t iomap_offset = XFS_FSB_TO_B(mp, iomap.iomap_offset); + xfs_off_t iomap_delta = offset - iomap_offset; + xfs_off_t iomap_bsize = XFS_FSB_TO_B(mp, iomap.iomap_bsize); - ASSERT(iomap.iomap_bsize - iomap_delta > 0); + ASSERT(iomap_bsize - iomap_delta > 0); offset = min_t(xfs_off_t, - iomap.iomap_bsize - iomap_delta, size); + 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 c6b409e0f013..49b5ad22a9d8 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -64,11 +64,10 @@ xfs_imap_to_bmap( int imaps, /* Number of imap entries */ int flags) { - xfs_mount_t *mp = ip->i_mount; xfs_fsblock_t start_block; - iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff); - iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount); + iomapp->iomap_offset = imap->br_startoff; + iomapp->iomap_bsize = imap->br_blockcount; iomapp->iomap_flags = flags; start_block = imap->br_startblock; -- cgit v1.2.3