On 2021/10/7 1:49, Daeho Jeong wrote:
From: Daeho Jeong <[email protected]>
Need to include non-compressed blocks in compr_written_block to
estimate average compression ratio more accurately.
Signed-off-by: Daeho Jeong <[email protected]>
---
fs/f2fs/compress.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index c1bf9ad4c220..9b663eaf4805 100644
--- 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);
Shouldn't we relocate this after 'write' label?
One more concern, it looks we've changed what compr_block stat indicated,
literally, the block we account should be compressed..., how about accounting
it by introducing .presist_blocks, used_blocks or occupied_blocks.... thoughts?
Thanks,
goto write;
} else if (err) {
f2fs_put_rpages_wbc(cc, wbc, true, 1);
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