linux-kernel - [PATCH 28/31] exec: use flush_icache_user_range in read

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Message-Id: <20200510075510.987823-29-hch@lst.de>
Date:   Sun, 10 May 2020 09:55:07 +0200
From:   Christoph Hellwig <hch@....de>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Roman Zippel <zippel@...ux-m68k.org>
Cc:     Jessica Yu <jeyu@...nel.org>, Michal Simek <monstr@...str.eu>,
        x86@...nel.org, linux-alpha@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-c6x-dev@...ux-c6x.org, linux-hexagon@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-mips@...r.kernel.org, openrisc@...ts.librecores.org,
        linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org,
        linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-um@...ts.infradead.org, linux-xtensa@...ux-xtensa.org,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH 28/31] exec: use flush_icache_user_range in read_code

read_code operates on user addresses.

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

diff --git a/fs/exec.c b/fs/exec.c
index a4f766f296f8f..c541867316a63 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1033,7 +1033,7 @@ ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len)
 {
 	ssize_t res = vfs_read(file, (void __user *)addr, len, &pos);
 	if (res > 0)
-		flush_icache_range(addr, addr + len);
+		flush_icache_user_range(addr, addr + len);
 	return res;
 }
 EXPORT_SYMBOL(read_code);
-- 
2.26.2