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| author | Christoph Hellwig <hch@infradead.org> | 2010-04-28 12:29:00 (GMT) |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-05-19 14:58:20 (GMT) |
| commit | bd1556a146d46070049428dded306829cb65161d (patch) | |
| tree | 3ce3c35fb3359a83766a0442156cee692479037b /fs/xfs/linux-2.6 | |
| parent | 2b8f12b7e438fa6ba4a0f8f861871be0beb3a3e6 (diff) | |
| download | linux-bd1556a146d46070049428dded306829cb65161d.tar.xz | |
xfs: clean up end index calculation in xfs_page_state_convert
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 | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 1d51bdd..089eaca 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1065,7 +1065,7 @@ xfs_page_state_convert( unsigned long p_offset = 0; unsigned int type; __uint64_t end_offset; - pgoff_t end_index, last_index, tlast; + pgoff_t end_index, last_index; ssize_t size, len; int flags, err, imap_valid = 0, uptodate = 1; int page_dirty, count = 0; @@ -1260,15 +1260,22 @@ xfs_page_state_convert( xfs_start_page_writeback(page, 1, count); if (ioend && imap_valid) { - struct xfs_mount *m = XFS_I(inode)->i_mount; - xfs_off_t iomap_offset = XFS_FSB_TO_B(m, imap.br_startoff); - xfs_off_t iomap_bsize = XFS_FSB_TO_B(m, imap.br_blockcount); + xfs_off_t end_index; + + end_index = imap.br_startoff + imap.br_blockcount; + + /* to bytes */ + end_index <<= inode->i_blkbits; + + /* to pages */ + end_index = (end_index - 1) >> PAGE_CACHE_SHIFT; + + /* check against file size */ + if (end_index > last_index) + end_index = last_index; - offset = (iomap_offset + iomap_bsize - 1) >> - PAGE_CACHE_SHIFT; - tlast = min_t(pgoff_t, offset, last_index); xfs_cluster_write(inode, page->index + 1, &imap, &ioend, - wbc, startio, all_bh, tlast); + wbc, startio, all_bh, end_index); } if (iohead) |