[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-xfs
Subject: [PATCH 07/21] xfs: don't clear imap_valid for a non-uptodate buffers
From: Christoph Hellwig <hch () lst ! de>
Date: 2018-05-31 18:07:45
Message-ID: 20180531180759.21631-8-hch () lst ! de
[Download RAW message or body]
Finding a buffer that isn't uptodate doesn't invalidate the mapping for
any given block. The last_sector check will already take care of starting
another ioend as soon as we find any non-update buffer, and if the current
mapping doesn't include the next uptodate buffer the xfs_imap_valid check
will take care of it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/xfs/xfs_aops.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 236154d2572f..25d112a4bcf5 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -864,10 +864,8 @@ xfs_writepage_map(
* meaningless for holes (!mapped && uptodate), so skip
* buffers covering holes here.
*/
- if (!buffer_mapped(bh) && buffer_uptodate(bh)) {
- wpc->imap_valid = false;
+ if (!buffer_mapped(bh) && buffer_uptodate(bh))
continue;
- }
if (buffer_unwritten(bh))
new_type = XFS_IO_UNWRITTEN;
@@ -880,11 +878,8 @@ xfs_writepage_map(
ASSERT(buffer_mapped(bh));
/*
* This buffer is not uptodate and will not be
- * written to disk. Ensure that we will put any
- * subsequent writeable buffers into a new
- * ioend.
+ * written to disk.
*/
- wpc->imap_valid = false;
continue;
}
--
2.17.0
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic