From: Suparna Bhattacharya <suparna@in.ibm.com>
To: linux-aio@kvack.org, linux-kernel@vger.kernel.org
Cc: linux-osdl@osdl.org
Subject: Re: [PATCH 14/22] mpage writepages range limit fix
Date: Fri, 2 Jul 2004 21:52:43 +0530 [thread overview]
Message-ID: <20040702162243.GD3450@in.ibm.com> (raw)
In-Reply-To: <20040702130030.GA4256@in.ibm.com>
On Fri, Jul 02, 2004 at 06:30:30PM +0530, Suparna Bhattacharya wrote:
> The patchset contains modifications and fixes to the AIO core
> to support the full retry model, an implementation of AIO
> support for buffered filesystem AIO reads and O_SYNC writes
> (the latter courtesy O_SYNC speedup changes from Andrew Morton),
> an implementation of AIO reads and writes to pipes (from
> Chris Mason) and AIO poll (again from Chris Mason).
>
> Full retry infrastructure and fixes
> [1] aio-retry.patch
> [2] 4g4g-aio-hang-fix.patch
> [3] aio-retry-elevated-refcount.patch
> [4] aio-splice-runlist.patch
>
> FS AIO read
> [5] aio-wait-page.patch
> [6] aio-fs_read.patch
> [7] aio-upfront-readahead.patch
>
> AIO for pipes
> [8] aio-cancel-fix.patch
> [9] aio-read-immediate.patch
> [10] aio-pipe.patch
> [11] aio-context-switch.patch
>
> Concurrent O_SYNC write speedups using radix-tree walks
> [12] writepages-range.patch
> [13] fix-writeback-range.patch
> [14] fix-writepages-range.patch
--
Suparna Bhattacharya (suparna@in.ibm.com)
Linux Technology Center
IBM Software Lab, India
----------------------------------------------------
From: Suparna Bhattacharya
Safeguard to make sure we break out of pagevec_lookup_tag loop if we
are beyond the specified range.
mpage.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletion(-)
--- aio/fs/mpage.c.orig 2004-06-18 14:55:21.937871440 -0700
+++ fix-writepages-range/fs/mpage.c 2004-06-18 14:56:10.739452472 -0700
@@ -636,7 +636,8 @@ mpage_writepages(struct address_space *m
scanned = 1;
}
retry:
- while (!done && (nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
+ while (!done && (index <= end) &&
+ (nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
PAGECACHE_TAG_DIRTY,
min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1))) {
unsigned i;
next prev parent reply other threads:[~2004-07-02 16:13 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-02 13:00 [PATCH 0/22] fsaio, pipe aio and aio poll upgraded to 2.6.7 Suparna Bhattacharya
2004-07-02 13:07 ` [PATCH 1/22] High-level AIO retry infrastructure and fixes Suparna Bhattacharya
2004-07-02 13:11 ` [PATCH 2/22] use_mm fix (helps AIO hangs on 4:4 split) Suparna Bhattacharya
2004-07-02 13:14 ` [PATCH 3/22] Refcounting fixes Suparna Bhattacharya
2004-07-02 13:15 ` [PATCH 4/22] Splice ioctx runlist for fairness Suparna Bhattacharya
2004-07-02 13:16 ` [PATCH 5/22] AIO wait on page support Suparna Bhattacharya
2004-07-02 13:18 ` [PATCH 6/22] FS AIO read Suparna Bhattacharya
2004-07-02 13:19 ` [PATCH 7/22] Upfront readahead to help streaming AIO reads Suparna Bhattacharya
2004-07-02 13:20 ` [PATCH 8/22] AIO cancellation fix Suparna Bhattacharya
2004-07-02 13:23 ` [PATCH 9/22] AIO immediate read (needed for AIO pipes & sockets) Suparna Bhattacharya
2004-07-02 13:23 ` [PATCH 10/22] AIO pipe support Suparna Bhattacharya
2004-07-02 13:26 ` [PATCH 11/22] Reduce AIO worker context switches Suparna Bhattacharya
2004-07-02 16:05 ` [PATCH 12/22] Writeback page range hint Suparna Bhattacharya
2004-07-02 16:18 ` [PATCH 13/22] Fix writeback page range to use exact limits Suparna Bhattacharya
2004-07-02 16:22 ` Suparna Bhattacharya [this message]
2004-07-02 16:25 ` [PATCH 15/22] filemap_fdatawrite range interface Suparna Bhattacharya
2004-07-02 16:27 ` [PATCH 16/22] Concurrent O_SYNC write support Suparna Bhattacharya
2004-07-02 16:31 ` [PATCH 17/22] AIO wait on writeback Suparna Bhattacharya
2004-07-02 16:33 ` [PATCH 18/22] AIO O_SYNC write Suparna Bhattacharya
2004-07-02 16:34 ` [PATCH 19/22] Fix math error in AIO wait on writeback Suparna Bhattacharya
2004-07-02 16:39 ` [PATCH 20/22] AIO poll Suparna Bhattacharya
2004-07-29 15:19 ` Jeff Moyer
2004-07-29 16:02 ` Avi Kivity
2004-07-29 16:16 ` Arjan van de Ven
2004-07-29 16:37 ` Benjamin LaHaise
2004-07-29 17:23 ` William Lee Irwin III
2004-07-29 17:10 ` William Lee Irwin III
2004-07-29 17:24 ` Avi Kivity
2004-07-29 17:26 ` William Lee Irwin III
2004-07-29 17:30 ` Avi Kivity
2004-07-29 17:32 ` William Lee Irwin III
2004-07-02 16:42 ` [PATCH 21/22] fix: flush workqueue on put_ioctx Suparna Bhattacharya
2004-07-02 16:44 ` [PATCH 22/22] Fix stalls with the AIO context switch patch Suparna Bhattacharya
2004-07-05 9:24 ` [PATCH 0/22] fsaio, pipe aio and aio poll upgraded to 2.6.7 Christoph Hellwig
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