f2fs: include non-compressed blocks in compr_written_block

commit 09631cf3234d32156e7cae32275f5a4144c683c5 upstream.

Need to include non-compressed blocks in compr_written_block to
estimate average compression ratio more accurately.

Fixes: 5ac443e26a09 ("f2fs: add sysfs nodes to get runtime compression stat")
Cc: stable@vger.kernel.org
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index c1bf9ad4c2207fb9ff1d8aab94046ddbb280d389..9b663eaf480574b2975c4d390ab5ccbce4be4cb8 100644 (file)
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1530,6 +1530,7 @@ int f2fs_write_multi_pages(struct compress_ctx *cc,
        if (cluster_may_compress(cc)) {
                err = f2fs_compress_pages(cc);
                if (err == -EAGAIN) {
+                       add_compr_block_stat(cc->inode, cc->cluster_size);
                        goto write;
                } else if (err) {
                        f2fs_put_rpages_wbc(cc, wbc, true, 1);