linux-kernel - [PATCH] f2fs: decompress data without workqueue

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Date:   Wed, 18 May 2022 10:55:47 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH] f2fs: decompress data without workqueue

Let's decompress data under the same context to avoid workqueue delay.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/data.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 54a7a8ad994d..37aa7ac5d463 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -285,10 +285,12 @@ static void f2fs_read_end_io(struct bio *bio)
 		return;
 	}
 
-	if (ctx && (ctx->enabled_steps & (STEP_DECRYPT | STEP_DECOMPRESS))) {
+	if (ctx && (ctx->enabled_steps & STEP_DECRYPT)) {
 		INIT_WORK(&ctx->work, f2fs_post_read_work);
 		queue_work(ctx->sbi->post_read_wq, &ctx->work);
 	} else {
+		if (ctx && (ctx->enabled_steps & STEP_DECOMPRESS))
+			f2fs_handle_step_decompress(ctx);
 		f2fs_verify_and_finish_bio(bio);
 	}
 }
-- 
2.36.1.124.g0e6072fb45-goog