Commit 244f4fc1 authored by Jaegeuk Kim's avatar Jaegeuk Kim

f2fs: set cached_en after checking finally

This patch relocates cached_en not only to be covered by spin_lock, but also
to set once after checking out completely.
Reviewed-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent cbe91923
......@@ -453,14 +453,12 @@ static struct extent_node *__lookup_extent_tree(struct extent_tree *et,
while (node) {
en = rb_entry(node, struct extent_node, rb_node);
if (fofs < en->ei.fofs) {
if (fofs < en->ei.fofs)
node = node->rb_left;
} else if (fofs >= en->ei.fofs + en->ei.len) {
else if (fofs >= en->ei.fofs + en->ei.len)
node = node->rb_right;
} else {
et->cached_en = en;
else
return en;
}
}
return NULL;
}
......@@ -625,6 +623,7 @@ static bool f2fs_lookup_extent_tree(struct inode *inode, pgoff_t pgofs,
spin_lock(&sbi->extent_lock);
if (!list_empty(&en->list))
list_move_tail(&en->list, &sbi->extent_list);
et->cached_en = en;
spin_unlock(&sbi->extent_lock);
stat_inc_read_hit(sbi->sb);
}
......
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