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author | Christoph Hellwig <hch@infradead.org> | 2010-04-28 12:28:54 +0000 |
---|---|---|
committer | Alex Elder <aelder@sgi.com> | 2010-05-19 09:58:17 -0500 |
commit | 8699bb0a480193e62d5ccb9c86e2c26b407090a8 (patch) | |
tree | aabcc9cd0800cf5c0d0605d46a104ed825f90db6 /fs/xfs/linux-2.6 | |
parent | 9563b3d8998c78d5b7e718b546d5f68037c494fe (diff) | |
download | op-kernel-dev-8699bb0a480193e62d5ccb9c86e2c26b407090a8.zip op-kernel-dev-8699bb0a480193e62d5ccb9c86e2c26b407090a8.tar.gz |
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 <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_aops.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 577d0b4..303a779 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); } |