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 09/12] mm: count unstable pages per BDI
Date: Tue, 17 Apr 2007 09:10:55 +0200 [thread overview]
Message-ID: <20070417071703.710381113@chello.nl> (raw)
In-Reply-To: <20070417071046.318415445@chello.nl>
[-- Attachment #1: bdi_stat_unstable.patch --]
[-- Type: text/plain, Size: 2287 bytes --]
Count per BDI unstable pages.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
fs/nfs/write.c | 4 ++++
include/linux/backing-dev.h | 1 +
2 files changed, 5 insertions(+)
Index: linux-2.6-mm/fs/nfs/write.c
===================================================================
--- linux-2.6-mm.orig/fs/nfs/write.c
+++ linux-2.6-mm/fs/nfs/write.c
@@ -449,6 +449,7 @@ nfs_mark_request_commit(struct nfs_page
nfsi->ncommit++;
spin_unlock(&nfsi->req_lock);
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
}
#endif
@@ -509,6 +510,7 @@ static void nfs_cancel_commit_list(struc
while(!list_empty(head)) {
req = nfs_list_entry(head->next);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
nfs_list_remove_request(req);
nfs_inode_remove_request(req);
nfs_unlock_request(req);
@@ -1234,6 +1236,7 @@ nfs_commit_list(struct inode *inode, str
nfs_list_remove_request(req);
nfs_mark_request_commit(req);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
nfs_clear_page_writeback(req);
}
return -ENOMEM;
@@ -1258,6 +1261,7 @@ static void nfs_commit_done(struct rpc_t
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
dprintk("NFS: commit (%s/%Ld %d@%Ld)",
req->wb_context->dentry->d_inode->i_sb->s_id,
Index: linux-2.6-mm/include/linux/backing-dev.h
===================================================================
--- linux-2.6-mm.orig/include/linux/backing-dev.h
+++ linux-2.6-mm/include/linux/backing-dev.h
@@ -28,6 +28,7 @@ typedef int (congested_fn)(void *, int);
enum bdi_stat_item {
BDI_DIRTY,
BDI_WRITEBACK,
+ BDI_UNSTABLE,
NR_BDI_STAT_ITEMS
};
--
--
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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 ` [PATCH 02/12] nfs: remove congestion_end() Peter Zijlstra
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 ` Peter Zijlstra [this message]
2007-04-19 17:44 ` [PATCH 09/12] mm: count unstable " 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
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