[PATCH 26/29] exec: use flush_icache_user_range in read_code
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- To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Roman Zippel <zippel@xxxxxxxxxxxxxx>
- Subject: [PATCH 26/29] exec: use flush_icache_user_range in read_code
- From: Christoph Hellwig <hch@xxxxxx>
- Date: Fri, 15 May 2020 16:36:43 +0200
- Cc: Jessica Yu <jeyu@xxxxxxxxxx>, Michal Simek <monstr@xxxxxxxxx>, x86@xxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-c6x-dev@xxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, openrisc@xxxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx
- In-reply-to: <20200515143646.3857579-1-hch@lst.de>
- References: <20200515143646.3857579-1-hch@lst.de>
read_code operates on user addresses.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
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
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