From: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Thu, 12 Jun 2025 14:34:37 +0000 (+0100)
Subject: bio: use memzero_page() in bio_truncate()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff20487308f4124fcbe806616773c88672b738f1;p=thirdparty%2Fkernel%2Flinux.git

bio: use memzero_page() in bio_truncate()

Patch series "Remove zero_user()".

The zero_user() API is almost unused these days.  Finish the job of
removing it.


This patch (of 5):

memzero_page() is the new name for zero_user().

Link: https://lkml.kernel.org/r/20250612143443.2848197-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20250612143443.2848197-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Alex Markuze <amarkuze@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Xiubo Li <xiubli@redhat.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/block/bio.c b/block/bio.c
index 3c0a558c90f52..ce16c34ec6de6 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -653,13 +653,13 @@ static void bio_truncate(struct bio *bio, unsigned new_size)
 
 	bio_for_each_segment(bv, bio, iter) {
 		if (done + bv.bv_len > new_size) {
-			unsigned offset;
+			size_t offset;
 
 			if (!truncated)
 				offset = new_size - done;
 			else
 				offset = 0;
-			zero_user(bv.bv_page, bv.bv_offset + offset,
+			memzero_page(bv.bv_page, bv.bv_offset + offset,
 				  bv.bv_len - offset);
 			truncated = true;
 		}