linux-ext4 - [PATCH 03/16] ext4: don't build the fsverity work handler for !CONFIG_FS

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Message-ID: <20260126045212.1381843-4-hch@lst.de>
Date: Mon, 26 Jan 2026 05:50:49 +0100
From: Christoph Hellwig <hch@....de>
To: Eric Biggers <ebiggers@...nel.org>
Cc: Al Viro <viro@...iv.linux.org.uk>,
	Christian Brauner <brauner@...nel.org>,
	Jan Kara <jack@...e.cz>,
	David Sterba <dsterba@...e.com>,
	"Theodore Ts'o" <tytso@....edu>,
	Jaegeuk Kim <jaegeuk@...nel.org>,
	Chao Yu <chao@...nel.org>,
	Andrey Albershteyn <aalbersh@...hat.com>,
	Matthew Wilcox <willy@...radead.org>,
	linux-fsdevel@...r.kernel.org,
	linux-btrfs@...r.kernel.org,
	linux-ext4@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	fsverity@...ts.linux.dev
Subject: [PATCH 03/16] ext4: don't build the fsverity work handler for !CONFIG_FS_VERITY

Use IS_ENABLED to disable this code, leading to a slight size reduction:

   text	   data	    bss	    dec	    hex	filename
   4121	    376	     16	   4513	   11a1	fs/ext4/readpage.o.old
   4030	    328	     16	   4374	   1116	fs/ext4/readpage.o

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/ext4/readpage.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index e7f2350c725b..267594ef0b2c 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -130,7 +130,8 @@ static void bio_post_read_processing(struct bio_post_read_ctx *ctx)
 		ctx->cur_step++;
 		fallthrough;
 	case STEP_VERITY:
-		if (ctx->enabled_steps & (1 << STEP_VERITY)) {
+		if (IS_ENABLED(CONFIG_FS_VERITY) &&
+		    ctx->enabled_steps & (1 << STEP_VERITY)) {
 			INIT_WORK(&ctx->work, verity_work);
 			fsverity_enqueue_verify_work(&ctx->work);
 			return;
-- 
2.47.3