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From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH 07/24] xfs: do not set the page uptodate in xfs_writepage_map
Date: Fri, 15 Jun 2018 15:01:52 +0200	[thread overview]
Message-ID: <20180615130209.1970-8-hch@lst.de> (raw)
In-Reply-To: <20180615130209.1970-1-hch@lst.de>

We already track the page uptodate status based on the buffer uptodate
status, which is updated whenever reading or zeroing blocks.

This code has been there since commit a ptool commit in 2002, which
claims to:

    "merge" the 2.4 fsx fix for block size < page size to 2.5.  This needed
    major changes to actually fit.

and isn't present in other writepage implementations.

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 | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 026721c4991e..5c611c0784ca 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -850,7 +850,6 @@ xfs_writepage_map(
 	uint64_t		offset;
 	int			error = 0;
 	int			count = 0;
-	int			uptodate = 1;
 	unsigned int		new_type;
 
 	bh = head = page_buffers(page);
@@ -858,8 +857,6 @@ xfs_writepage_map(
 	do {
 		if (offset >= end_offset)
 			break;
-		if (!buffer_uptodate(bh))
-			uptodate = 0;
 
 		/*
 		 * set_page_dirty dirties all buffers in a page, independent
@@ -923,9 +920,6 @@ xfs_writepage_map(
 
 	} while (offset += len, ((bh = bh->b_this_page) != head));
 
-	if (uptodate && bh == head)
-		SetPageUptodate(page);
-
 	ASSERT(wpc->ioend || list_empty(&submit_list));
 
 out:
-- 
2.17.1

  parent reply	other threads:[~2018-06-15 13:02 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 ` Christoph Hellwig [this message]
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 ` [PATCH 20/24] xfs: remove xfs_start_page_writeback Christoph Hellwig
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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