linux-kernel - linux-next: manual merge of the percpu tree with the ext4 tree

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Date:	Mon, 8 Sep 2014 16:41:14 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Tejun Heo <tj@...nel.org>, Rusty Russell <rusty@...tcorp.com.au>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Theodore Ts'o <tytso@....edu>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Zheng Liu <wenqing.lz@...bao.com>
Subject: linux-next: manual merge of the percpu tree with the ext4 tree

Hi all,

Today's linux-next merge of the percpu tree got a conflict in
fs/ext4/super.c between commit eb68d0e2fc5a ("ext4: track extent status
tree shrinker delay statictics") from the ext4 tree and commit
908c7f1949cb ("percpu_counter: add @gfp to percpu_counter_init()") from
the percpu tree.

I fixed it up (the former removed a reference to percpu_counter_init)
and can carry the fix as necessary (no action is required).

That commit also added two references in fs/ext4/extents_status.c (thus
proving that modifying a little used API causes it to be used
more :-)), so I added the following merge fix patch:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 8 Sep 2014 16:25:46 +1000
Subject: [PATCH] percpu_counter: fix for ext4 updates

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 fs/ext4/extents_status.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 09fd57667262..3777f7eda5cf 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -13,6 +13,7 @@
 #include <linux/list_sort.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/gfp.h>
 #include "ext4.h"
 #include "extents_status.h"
 
@@ -1189,10 +1190,10 @@ int ext4_es_register_shrinker(struct ext4_sb_info *sbi)
 	sbi->s_es_stats.es_stats_cache_misses = 0;
 	sbi->s_es_stats.es_stats_scan_time = 0;
 	sbi->s_es_stats.es_stats_max_scan_time = 0;
-	err = percpu_counter_init(&sbi->s_es_stats.es_stats_all_cnt, 0);
+	err = percpu_counter_init(&sbi->s_es_stats.es_stats_all_cnt, 0, GFP_KERNEL);
 	if (err)
 		return err;
-	err = percpu_counter_init(&sbi->s_es_stats.es_stats_lru_cnt, 0);
+	err = percpu_counter_init(&sbi->s_es_stats.es_stats_lru_cnt, 0, GFP_KERNEL);
 	if (err)
 		goto err1;
 
-- 
2.1.0

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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