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 01/15] nfs: remove congestion_end()
Date: Thu, 10 May 2007 12:08:40 +0200 [thread overview]
Message-ID: <20070510101128.722787125@chello.nl> (raw)
In-Reply-To: <20070510100839.621199408@chello.nl>
[-- Attachment #1: nfs_congestion_fixup.patch --]
[-- Type: text/plain, Size: 2413 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/fs/nfs/write.c
===================================================================
--- linux-2.6.orig/fs/nfs/write.c 2007-04-22 18:12:46.000000000 +0200
+++ linux-2.6/fs/nfs/write.c 2007-04-22 18:12:49.000000000 +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/include/linux/backing-dev.h
===================================================================
--- linux-2.6.orig/include/linux/backing-dev.h 2007-04-22 18:12:48.000000000 +0200
+++ linux-2.6/include/linux/backing-dev.h 2007-04-22 18:12:49.000000000 +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/backing-dev.c
===================================================================
--- linux-2.6.orig/mm/backing-dev.c 2007-04-22 18:12:46.000000000 +0200
+++ linux-2.6/mm/backing-dev.c 2007-04-22 18:12:49.000000000 +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);
--
--
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next prev parent reply other threads:[~2007-05-10 10:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-10 10:08 [PATCH 00/15] per device dirty throttling -v6 Peter Zijlstra
2007-05-10 10:08 ` Peter Zijlstra [this message]
2007-05-10 10:08 ` [PATCH 02/15] lib: percpu_counter variable batch Peter Zijlstra
2007-05-10 10:08 ` [PATCH 03/15] lib: percpu_counter_mod64 Peter Zijlstra
2007-05-10 10:08 ` [PATCH 04/15] lib: percpu_counter_set Peter Zijlstra
2007-05-10 10:08 ` [PATCH 05/15] lib: percpu_count_sum_signed() Peter Zijlstra
2007-05-10 10:08 ` [PATCH 06/15] mm: bdi init hooks Peter Zijlstra
2007-05-10 10:08 ` [PATCH 07/15] mtd: give mtdconcat devices their own backing_dev_info Peter Zijlstra
2007-05-10 10:08 ` [PATCH 08/15] mm: scalable bdi statistics counters Peter Zijlstra
2007-05-10 10:08 ` [PATCH 09/15] mm: count reclaimable pages per BDI Peter Zijlstra
2007-05-10 10:08 ` [PATCH 10/15] mm: count writeback " Peter Zijlstra
2007-05-10 10:08 ` [PATCH 11/15] mm: expose BDI statistics in sysfs Peter Zijlstra
2007-05-10 10:08 ` [PATCH 12/15] mm: per device dirty threshold Peter Zijlstra
2007-05-10 10:08 ` [PATCH 13/15] debug: sysfs files for the current ratio/size/total Peter Zijlstra
2007-05-10 10:08 ` [PATCH 14/15] lib: abstract the floating proportion Peter Zijlstra
2007-05-10 10:08 ` [PATCH 15/15] mm: dirty balancing for tasks Peter Zijlstra
2007-05-15 4:48 ` [PATCH 00/15] per device dirty throttling -v6 Neil Brown
2007-05-15 7:44 ` Peter Zijlstra
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