f2fs: start freeing cluster pages from the unused number

We can start freeing cluster page(s) from which compression
is not used. It will get better performance.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index e4db3b7..dd1caba 100644 (file)
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -690,9 +690,7 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
        vm_unmap_ram(cc->cbuf, cc->nr_cpages);
        vm_unmap_ram(cc->rbuf, cc->cluster_size);
 
-       for (i = 0; i < cc->nr_cpages; i++) {
-               if (i < new_nr_cpages)
-                       continue;
+       for (i = new_nr_cpages; i < cc->nr_cpages; i++) {
                f2fs_compress_free_page(cc->cpages[i]);
                cc->cpages[i] = NULL;
        }