From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 05/32] xfs: remove xfs_flushinval_pages
Date: Fri, 16 Nov 2012 07:54:27 +1100 [thread overview]
Message-ID: <20121115205427.GH14281@dastard> (raw)
In-Reply-To: <20121115162807.GE4019@infradead.org>
On Thu, Nov 15, 2012 at 11:28:07AM -0500, Christoph Hellwig wrote:
> > - if ((iocb->ki_pos & target->bt_smask) ||
> > - (size & target->bt_smask)) {
> > - if (iocb->ki_pos == i_size_read(inode))
> > + if ((pos & target->bt_smask) || (size & target->bt_smask)) {
> > + if (pos == i_size_read(inode))
> > return 0;
> > return -XFS_ERROR(EINVAL);
> > }
> > }
> >
> > - n = mp->m_super->s_maxbytes - iocb->ki_pos;
> > + n = mp->m_super->s_maxbytes - pos;
>
> What does this have to do with the recent of the patch?
Left over from an original version of the patch that also changed
the ranges of the flushes.
> Not that is diapprove, but I don't think it fits here.
>
> > if (inode->i_mapping->nrpages) {
> > - ret = -xfs_flushinval_pages(ip,
> > - (iocb->ki_pos & PAGE_CACHE_MASK),
> > - -1, FI_REMAPF_LOCKED);
> > + ret = -filemap_write_and_wait_range(
> > + VFS_I(ip)->i_mapping,
> > + pos, -1);
> > if (ret) {
> > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL);
> > return ret;
> > }
> > + truncate_pagecache_range(VFS_I(ip), pos, -1);
>
> We already have a local "inode" variable that can be used in these two
> places.
Ah, copy-n-waste problem.
> Also the -1 end might be a 1:1 translation of what was there, but is not what
> we really want. At very least it needs an XXX comment that the range should
> be revisited.
Yes, I know, but the original patch I had that changed the ranges to
something sensible was causing fsx and other failures all over the
place. It appears that setting the ranges appropriately here exposes
other (worse) bugs, so I decided to leave doing that until I have
time to go on a wild goose chase....
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2012-11-15 20:52 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-12 11:53 [PATCH 00/32] xfs: current queue for 3.8 Dave Chinner
2012-11-12 11:53 ` [PATCH 01/32] xfs: add more attribute tree trace points Dave Chinner
2012-11-12 22:11 ` Mark Tinguely
2012-11-15 16:18 ` Christoph Hellwig
2012-11-12 11:53 ` [PATCH 02/32] xfs: remove xfs_tosspages Dave Chinner
2012-11-14 6:42 ` [PATCH 02/32 V2] " Dave Chinner
2012-11-14 18:50 ` Andrew Dahl
2012-11-14 18:52 ` [PATCH 02.5/32] " Andrew Dahl
2012-11-14 19:59 ` Mark Tinguely
2012-11-21 8:05 ` Dave Chinner
2012-11-22 5:10 ` Andrew Dahl
2012-11-22 23:29 ` Dave Chinner
2012-11-26 18:04 ` Andrew Dahl
2012-11-14 21:17 ` [PATCH 02/32 V2] " Dave Chinner
2012-11-15 16:22 ` Christoph Hellwig
2012-11-12 11:53 ` [PATCH 03/32] xfs: remove xfs_wait_on_pages() Dave Chinner
2012-11-15 16:23 ` Christoph Hellwig
2012-11-12 11:53 ` [PATCH 04/32] xfs: remove xfs_flush_pages Dave Chinner
2012-11-15 16:24 ` Christoph Hellwig
2012-11-12 11:53 ` [PATCH 05/32] xfs: remove xfs_flushinval_pages Dave Chinner
2012-11-15 16:28 ` Christoph Hellwig
2012-11-15 20:54 ` Dave Chinner [this message]
2012-11-21 10:12 ` Christoph Hellwig
2012-11-12 11:53 ` [PATCH 06/32] xfs: use btree block initialisation functions in growfs Dave Chinner
2012-11-13 21:18 ` Rich Johnston
2012-11-23 12:40 ` Christoph Hellwig
2012-11-23 21:25 ` Dave Chinner
2012-11-12 11:53 ` [PATCH 07/32] xfs: growfs: use uncached buffers for new headers Dave Chinner
2012-11-13 21:18 ` Rich Johnston
2012-11-12 11:54 ` [PATCH 08/32] xfs: make growfs initialise the AGFL header Dave Chinner
2012-11-13 21:18 ` Rich Johnston
2012-11-23 12:41 ` Christoph Hellwig
2012-11-23 21:27 ` Dave Chinner
2012-11-12 11:54 ` [PATCH 09/32] xfs: make buffer read verication an IO completion function Dave Chinner
2012-11-12 11:54 ` [PATCH 10/32] xfs: uncached buffer reads need to return an error Dave Chinner
2012-11-12 11:54 ` [PATCH 11/32] xfs: verify superblocks as they are read from disk Dave Chinner
2012-11-23 12:42 ` Christoph Hellwig
2012-11-12 11:54 ` [PATCH 12/32] xfs: verify AGF blocks " Dave Chinner
2012-11-13 1:09 ` Phil White
2012-11-13 3:07 ` Dave Chinner
2012-11-14 6:44 ` [PATCH 12/32 V2] " Dave Chinner
2012-11-14 21:28 ` Mark Tinguely
2012-11-12 11:54 ` [PATCH 13/32] xfs: verify AGI " Dave Chinner
2012-11-12 11:54 ` [PATCH 14/32] xfs: verify AGFL " Dave Chinner
2012-11-12 11:54 ` [PATCH 15/32] xfs: verify inode buffers " Dave Chinner
2012-11-12 11:54 ` [PATCH 16/32] xfs: verify btree blocks " Dave Chinner
2012-11-12 11:54 ` [PATCH 17/32] xfs: verify dquot " Dave Chinner
2012-11-14 6:50 ` [PATCH 17/32 V2] " Dave Chinner
2012-11-15 17:55 ` Mark Tinguely
2012-11-15 20:48 ` Dave Chinner
2012-11-15 21:01 ` Mark Tinguely
2012-11-15 21:16 ` Dave Chinner
2012-11-15 21:34 ` Mark Tinguely
2012-11-15 22:01 ` Dave Chinner
2012-11-15 22:09 ` Dave Chinner
2012-11-15 22:26 ` Mark Tinguely
2012-11-15 22:33 ` Dave Chinner
2012-11-16 1:22 ` Dave Chinner
2012-11-12 11:54 ` [PATCH 18/32] xfs: add verifier callback to directory read code Dave Chinner
2012-11-12 11:54 ` [PATCH 19/32] xfs: factor dir2 block read operations Dave Chinner
2012-11-15 3:09 ` Ben Myers
2012-11-15 5:59 ` Dave Chinner
2012-11-12 11:54 ` [PATCH 20/32] xfs: verify dir2 block format buffers Dave Chinner
2012-11-12 11:54 ` [PATCH 21/32] xfs: factor dir2 free block reading Dave Chinner
2012-11-12 11:54 ` [PATCH 22/32] xfs: factor out dir2 data " Dave Chinner
2012-11-12 11:54 ` [PATCH 23/32] xfs: factor dir2 leaf read Dave Chinner
2012-11-12 11:54 ` [PATCH 24/32] xfs: factor and verify attr leaf reads Dave Chinner
2012-11-12 11:54 ` [PATCH 25/32] xfs: add xfs_da_node verification Dave Chinner
2012-11-12 11:54 ` [PATCH 26/32] xfs: Add verifiers to dir2 data readahead Dave Chinner
2012-11-12 11:54 ` [PATCH 27/32] xfs: add buffer pre-write callback Dave Chinner
2012-11-15 6:02 ` [PATCH 27/32 REPOST] " Dave Chinner
2012-11-12 11:54 ` [PATCH 28/32] xfs: add pre-write metadata buffer verifier callbacks Dave Chinner
2012-11-14 6:52 ` [PATCH 28/32 V2] " Dave Chinner
2012-11-14 22:23 ` Mark Tinguely
2012-11-12 11:54 ` [PATCH 29/32] xfs: connect up write verifiers to new buffers Dave Chinner
2012-11-14 6:53 ` [PATCH 29/32 V2] " Dave Chinner
2012-11-12 11:54 ` [PATCH 30/32] xfs: convert buffer verifiers to an ops structure Dave Chinner
2012-11-14 6:54 ` [PATCH 30/32 V2] " Dave Chinner
2012-11-12 11:54 ` [PATCH 31/32] xfs: add CRC infrastructure Dave Chinner
2012-11-12 15:37 ` Mark Tinguely
2012-11-15 22:20 ` [PATCH 31/32 V2] " Dave Chinner
2012-11-12 11:54 ` [PATCH 32/32] xfs: add CRC checks to the log Dave Chinner
2012-11-12 15:37 ` Mark Tinguely
2012-11-13 23:26 ` [PATCH 00/32] xfs: current queue for 3.8 Ben Myers
2012-11-14 6:02 ` Dave Chinner
2012-11-14 20:42 ` Ben Myers
2012-11-14 21:27 ` Ben Myers
2012-11-15 4:40 ` Ben Myers
2012-11-15 6:03 ` Dave Chinner
2012-11-16 4:31 ` Ben Myers
2012-11-20 2:27 ` Ben Myers
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