From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: miklos@szeredi.hu, akpm@linux-foundation.org, neilb@suse.de,
dgc@sgi.com, tomoki.sekiyama.qu@hitachi.com,
a.p.zijlstra@chello.nl, nikita@clusterfs.com,
trond.myklebust@fys.uio.no, yingchao.zhou@gmail.com
Subject: [PATCH 02/12] nfs: remove congestion_end()
Date: Tue, 17 Apr 2007 09:10:48 +0200 [thread overview]
Message-ID: <20070417071702.818487046@chello.nl> (raw)
In-Reply-To: <20070417071046.318415445@chello.nl>
[-- Attachment #1: nfs_congestion_fixup.patch --]
[-- Type: text/plain, Size: 2440 bytes --]
Its redundant, clear_bdi_congested() already wakes the waiters.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
fs/nfs/write.c | 4 +---
include/linux/backing-dev.h | 1 -
mm/backing-dev.c | 13 -------------
3 files changed, 1 insertion(+), 17 deletions(-)
Index: linux-2.6-mm/fs/nfs/write.c
===================================================================
--- linux-2.6-mm.orig/fs/nfs/write.c 2007-04-05 16:24:50.000000000 +0200
+++ linux-2.6-mm/fs/nfs/write.c 2007-04-05 16:25:04.000000000 +0200
@@ -235,10 +235,8 @@ static void nfs_end_page_writeback(struc
struct nfs_server *nfss = NFS_SERVER(inode);
end_page_writeback(page);
- if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) {
+ if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
clear_bdi_congested(&nfss->backing_dev_info, WRITE);
- congestion_end(WRITE);
- }
}
/*
Index: linux-2.6-mm/include/linux/backing-dev.h
===================================================================
--- linux-2.6-mm.orig/include/linux/backing-dev.h 2007-04-05 16:24:50.000000000 +0200
+++ linux-2.6-mm/include/linux/backing-dev.h 2007-04-05 16:25:08.000000000 +0200
@@ -96,7 +96,6 @@ void clear_bdi_congested(struct backing_
void set_bdi_congested(struct backing_dev_info *bdi, int rw);
long congestion_wait(int rw, long timeout);
long congestion_wait_interruptible(int rw, long timeout);
-void congestion_end(int rw);
#define bdi_cap_writeback_dirty(bdi) \
(!((bdi)->capabilities & BDI_CAP_NO_WRITEBACK))
Index: linux-2.6-mm/mm/backing-dev.c
===================================================================
--- linux-2.6-mm.orig/mm/backing-dev.c 2007-04-05 16:24:50.000000000 +0200
+++ linux-2.6-mm/mm/backing-dev.c 2007-04-05 16:25:16.000000000 +0200
@@ -70,16 +70,3 @@ long congestion_wait_interruptible(int r
return ret;
}
EXPORT_SYMBOL(congestion_wait_interruptible);
-
-/**
- * congestion_end - wake up sleepers on a congested backing_dev_info
- * @rw: READ or WRITE
- */
-void congestion_end(int rw)
-{
- wait_queue_head_t *wqh = &congestion_wqh[rw];
-
- if (waitqueue_active(wqh))
- wake_up(wqh);
-}
-EXPORT_SYMBOL(congestion_end);
--
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-04-17 7:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-17 7:10 [PATCH 00/12] per device dirty throttling -v4 Peter Zijlstra
2007-04-17 7:10 ` [PATCH 01/12] revert per-backing_dev-dirty-and-writeback-page-accounting Peter Zijlstra
2007-04-17 7:10 ` Peter Zijlstra [this message]
2007-04-17 7:10 ` [PATCH 03/12] lib: dampen the percpu_counter FBC_BATCH Peter Zijlstra
2007-04-17 7:10 ` [PATCH 04/12] lib: percpu_counter_mod64 Peter Zijlstra
2007-04-17 7:10 ` [PATCH 05/12] mm: bdi init hooks Peter Zijlstra
2007-04-17 7:10 ` [PATCH 06/12] mm: scalable bdi statistics counters Peter Zijlstra
2007-04-17 7:10 ` [PATCH 07/12] mm: count dirty pages per BDI Peter Zijlstra
2007-04-17 7:10 ` [PATCH 08/12] mm: count writeback " Peter Zijlstra
2007-04-17 7:10 ` [PATCH 09/12] mm: count unstable " Peter Zijlstra
2007-04-19 17:44 ` Miklos Szeredi
2007-04-19 18:12 ` Peter Zijlstra
2007-04-19 18:46 ` Peter Zijlstra
2007-04-19 19:00 ` Peter Zijlstra
2007-04-19 19:20 ` Miklos Szeredi
2007-04-19 19:23 ` Peter Zijlstra
2007-04-17 7:10 ` [PATCH 10/12] mm: expose BDI statistics in sysfs Peter Zijlstra
2007-04-17 7:10 ` [PATCH 11/12] mm: per device dirty threshold Peter Zijlstra
2007-04-19 17:49 ` Miklos Szeredi
2007-04-19 18:04 ` Peter Zijlstra
2007-04-17 7:10 ` [PATCH 12/12] debug: expose BDI statistics in sysfs Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070417071702.818487046@chello.nl \
--to=a.p.zijlstra@chello.nl \
--cc=akpm@linux-foundation.org \
--cc=dgc@sgi.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=miklos@szeredi.hu \
--cc=neilb@suse.de \
--cc=nikita@clusterfs.com \
--cc=tomoki.sekiyama.qu@hitachi.com \
--cc=trond.myklebust@fys.uio.no \
--cc=yingchao.zhou@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox