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f2fs: speed up shrinking extent tree entries

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If there is no candidates for shrinking slab entries, we don't need to traverse
any trees at all.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
[Jaegeuk Kim: fix missing initialization reported by Yunlei He]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2015-12-21 19:25:50 -08:00
parent 7441ccef33
commit 74fd8d9927
3 changed files with 16 additions and 1 deletions
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fs/f2fs/shrinker.c
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@@ -32,7 +32,7 @@ static unsigned long __count_free_nids(struct f2fs_sb_info *sbi)
static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi)
{
return atomic_read(&sbi->total_ext_tree) +
return atomic_read(&sbi->total_zombie_tree) +
atomic_read(&sbi->total_ext_node);
}