From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH 20/24] xfs: remove xfs_start_page_writeback
Date: Fri, 15 Jun 2018 15:02:05 +0200 [thread overview]
Message-ID: <20180615130209.1970-21-hch@lst.de> (raw)
In-Reply-To: <20180615130209.1970-1-hch@lst.de>
This helper only has two callers, one of them with a constant error
argument. Remove it to make pending changes to the code a little easier.
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 | 47 +++++++++++++++++++++--------------------------
1 file changed, 21 insertions(+), 26 deletions(-)
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 261fb011ef9d..52d4f5503da7 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -500,30 +500,6 @@ xfs_map_blocks(
return 0;
}
-STATIC void
-xfs_start_page_writeback(
- struct page *page,
- int clear_dirty)
-{
- ASSERT(PageLocked(page));
- ASSERT(!PageWriteback(page));
-
- /*
- * if the page was not fully cleaned, we need to ensure that the higher
- * layers come back to it correctly. That means we need to keep the page
- * dirty, and for WB_SYNC_ALL writeback we need to ensure the
- * PAGECACHE_TAG_TOWRITE index mark is not removed so another attempt to
- * write this page in this writeback sweep will be made.
- */
- if (clear_dirty) {
- clear_page_dirty_for_io(page);
- set_page_writeback(page);
- } else
- set_page_writeback_keepwrite(page);
-
- unlock_page(page);
-}
-
/*
* Submit the bio for an ioend. We are passed an ioend with a bio attached to
* it, and we submit that bio. The ioend may be used for multiple bio
@@ -856,6 +832,9 @@ xfs_writepage_map(
ASSERT(wpc->ioend || list_empty(&submit_list));
out:
+ ASSERT(PageLocked(page));
+ ASSERT(!PageWriteback(page));
+
/*
* On error, we have to fail the ioend here because we have locked
* buffers in the ioend. If we don't do this, we'll deadlock
@@ -874,7 +853,21 @@ xfs_writepage_map(
* treated correctly on error.
*/
if (count) {
- xfs_start_page_writeback(page, !error);
+ /*
+ * If the page was not fully cleaned, we need to ensure that the
+ * higher layers come back to it correctly. That means we need
+ * to keep the page dirty, and for WB_SYNC_ALL writeback we need
+ * to ensure the PAGECACHE_TAG_TOWRITE index mark is not removed
+ * so another attempt to write this page in this writeback sweep
+ * will be made.
+ */
+ if (error) {
+ set_page_writeback_keepwrite(page);
+ } else {
+ clear_page_dirty_for_io(page);
+ set_page_writeback(page);
+ }
+ unlock_page(page);
/*
* Preserve the original error if there was one, otherwise catch
@@ -899,7 +892,9 @@ xfs_writepage_map(
* race with a partial page truncate on a sub-page block sized
* filesystem. In that case we need to mark the page clean.
*/
- xfs_start_page_writeback(page, 1);
+ clear_page_dirty_for_io(page);
+ set_page_writeback(page);
+ unlock_page(page);
end_page_writeback(page);
}
--
2.17.1
next prev parent reply other threads:[~2018-06-15 13:03 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-15 13:01 stop using buffer heads in xfs v6 Christoph Hellwig
2018-06-15 13:01 ` [PATCH 01/24] iomap: add an iomap-based readpage and readpages implementation Christoph Hellwig
2018-06-29 14:44 ` [PATCH] iomap: Add inline data support to iomap_readpage_actor Andreas Gruenbacher
2018-07-01 6:21 ` Christoph Hellwig
2018-07-01 21:43 ` Andreas Gruenbacher
2018-07-02 12:52 ` Christoph Hellwig
2018-07-02 15:05 ` Andreas Gruenbacher
2018-06-15 13:01 ` [PATCH 02/24] xfs: use iomap for blocksize == PAGE_SIZE readpage and readpages Christoph Hellwig
2018-06-15 13:01 ` [PATCH 03/24] iomap: add initial support for writes without buffer heads Christoph Hellwig
2018-06-15 13:01 ` [PATCH 04/24] xfs: simplify xfs_bmap_punch_delalloc_range Christoph Hellwig
2018-06-15 13:01 ` [PATCH 05/24] xfs: simplify xfs_aops_discard_page Christoph Hellwig
2018-06-15 13:01 ` [PATCH 06/24] xfs: move locking into xfs_bmap_punch_delalloc_range Christoph Hellwig
2018-06-19 5:26 ` Darrick J. Wong
2018-06-15 13:01 ` [PATCH 07/24] xfs: do not set the page uptodate in xfs_writepage_map Christoph Hellwig
2018-06-15 13:01 ` [PATCH 08/24] xfs: don't clear imap_valid for a non-uptodate buffers Christoph Hellwig
2018-06-15 13:01 ` [PATCH 09/24] xfs: don't use XFS_BMAPI_IGSTATE in xfs_map_blocks Christoph Hellwig
2018-06-19 5:27 ` Darrick J. Wong
2018-06-15 13:01 ` [PATCH 10/24] xfs: remove xfs_reflink_trim_irec_to_next_cow Christoph Hellwig
2018-06-19 5:30 ` Darrick J. Wong
2018-06-15 13:01 ` [PATCH 11/24] xfs: remove xfs_map_cow Christoph Hellwig
2018-06-18 17:38 ` Brian Foster
2018-06-19 5:35 ` Darrick J. Wong
2018-06-19 16:53 ` Christoph Hellwig
2018-06-20 0:37 ` Darrick J. Wong
2018-06-15 13:01 ` [PATCH 12/24] xfs: rename the offset variable in xfs_writepage_map Christoph Hellwig
2018-06-19 5:37 ` Darrick J. Wong
2018-06-15 13:01 ` [PATCH 13/24] xfs: make xfs_writepage_map extent map centric Christoph Hellwig
2018-06-18 17:38 ` Brian Foster
2018-06-19 5:43 ` Darrick J. Wong
2018-06-19 16:52 ` Christoph Hellwig
2018-06-15 13:01 ` [PATCH 14/24] xfs: remove the now unused XFS_BMAPI_IGSTATE flag Christoph Hellwig
2018-06-15 13:02 ` [PATCH 15/24] xfs: remove xfs_reflink_find_cow_mapping Christoph Hellwig
2018-06-15 13:02 ` [PATCH 16/24] xfs: simplify xfs_map_blocks by using xfs_iext_lookup_extent directly Christoph Hellwig
2018-06-15 13:02 ` [PATCH 17/24] xfs: remove the imap_valid flag Christoph Hellwig
2018-06-15 13:02 ` [PATCH 18/24] xfs: don't look at buffer heads in xfs_add_to_ioend Christoph Hellwig
2018-06-15 13:02 ` [PATCH 19/24] xfs: move all writeback buffer_head manipulation into xfs_map_at_offset Christoph Hellwig
2018-06-15 13:02 ` Christoph Hellwig [this message]
2018-06-15 13:02 ` [PATCH 21/24] xfs: refactor the tail of xfs_writepage_map Christoph Hellwig
2018-06-15 13:02 ` [PATCH 22/24] xfs: allow writeback on pages without buffer heads Christoph Hellwig
2018-06-15 13:02 ` [PATCH 23/24] iomap: add support for sub-pagesize buffered I/O " Christoph Hellwig
2018-06-19 16:52 ` Brian Foster
2018-06-20 7:56 ` Christoph Hellwig
2018-06-20 14:32 ` Brian Foster
2018-06-20 16:08 ` Darrick J. Wong
2018-06-20 18:12 ` Brian Foster
2018-06-20 19:02 ` Darrick J. Wong
2018-06-21 8:46 ` Christoph Hellwig
2018-06-23 13:06 ` Brian Foster
2018-06-29 15:59 ` Christoph Hellwig
2018-07-02 12:50 ` Christoph Hellwig
2018-07-02 18:16 ` Brian Foster
2018-06-21 7:53 ` Christoph Hellwig
2018-06-15 13:02 ` [PATCH 24/24] xfs: add support for sub-pagesize writeback without buffer_heads Christoph Hellwig
2018-06-19 6:15 ` Darrick J. Wong
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