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Subjectlinux-next: manual merge of the akpm tree with the ext4 tree
Hi Andrew,

Today's linux-next merge of the akpm tree got a conflict in
fs/ext4/extents_status.c between commit decae3aab047 ("ext4: make the
extent_status code more robust against ENOMEM failures") from the ext4
tree and commit "fs: convert fs shrinkers to new scan/count API" from
the akpm tree.

I fixed it up (I think - see below) and can carry the fix as necessary
(no action is required).

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

diff --cc fs/ext4/extents_status.c
index 91cb110,fb3b95e..0000000
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@@ -903,9 -891,21 +903,20 @@@ static int ext4_inode_touch_time_cmp(vo
return -1;
}

+ static long ext4_es_count(struct shrinker *shrink, struct shrink_control *sc)
+ {
+ long nr;
+ struct ext4_sb_info *sbi = container_of(shrink,
+ struct ext4_sb_info, s_es_shrinker);
+
+ nr = percpu_counter_read_positive(&sbi->s_extent_cache_cnt);
+ trace_ext4_es_shrink_enter(sbi->s_sb, sc->nr_to_scan, nr);
+ return nr;
+ }
+
-static long ext4_es_scan(struct shrinker *shrink, struct shrink_control *sc)
+static int __ext4_es_shrink(struct ext4_sb_info *sbi, int nr_to_scan,
+ struct ext4_inode_info *locked_ei)
{
- struct ext4_sb_info *sbi = container_of(shrink,
- struct ext4_sb_info, s_es_shrinker);
struct ext4_inode_info *ei;
struct list_head *cur, *tmp;
LIST_HEAD(skiped);
@@@ -958,30 -959,8 +969,23 @@@
list_splice_tail(&skiped, &sbi->s_es_lru);
spin_unlock(&sbi->s_es_lru_lock);

+ if (locked_ei && nr_shrunk == 0)
+ nr_shrunk = __es_try_to_reclaim_extents(ei, nr_to_scan);
+
+ return nr_shrunk;
+}
+
- static int ext4_es_shrink(struct shrinker *shrink, struct shrink_control *sc)
++static long ext4_es_shrink(struct shrinker *shrink, struct shrink_control *sc)
+{
+ struct ext4_sb_info *sbi = container_of(shrink,
+ struct ext4_sb_info, s_es_shrinker);
+ int nr_to_scan = sc->nr_to_scan;
- int ret, nr_shrunk;
- ret = percpu_counter_read_positive(&sbi->s_extent_cache_cnt);
- trace_ext4_es_shrink_enter(sbi->s_sb, nr_to_scan, ret);
-
- if (!nr_to_scan)
- return ret;
++ int nr_shrunk;
+
+ nr_shrunk = __ext4_es_shrink(sbi, nr_to_scan, NULL);
+
- ret = percpu_counter_read_positive(&sbi->s_extent_cache_cnt);
trace_ext4_es_shrink_exit(sbi->s_sb, nr_shrunk, ret);
- return ret;
+ return nr_shrunk;
}

void ext4_es_register_shrinker(struct ext4_sb_info *sbi)
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