2020-08-19 07:37:17

by Christoph Hellwig

[permalink] [raw]
Subject: [PATCH] raw: deprecate the raw driver

The raw driver has been replaced by O_DIRECT support on the block device
in 2002. Deprecate it to prepare for removal in a few kernel releases.

Signed-off-by: Christoph Hellwig <[email protected]>
---

Jens, I wonder if we can sneak this into 5.9 to have a longer deprecation
period?

drivers/char/raw.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 380bf518338ef7..ccf5bd528642da 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -63,6 +63,11 @@ static int raw_open(struct inode *inode, struct file *filp)
return 0;
}

+ pr_warn_ratelimited(
+ "process %s (pid %d) is using the deprecated raw device\n"
+ "support will be removed in Linux 5.14.\n",
+ current->comm, current->pid);
+
mutex_lock(&raw_mutex);

/*
--
2.28.0


2020-08-19 12:56:47

by Jens Axboe

[permalink] [raw]
Subject: Re: [PATCH] raw: deprecate the raw driver

On 8/19/20 12:35 AM, Christoph Hellwig wrote:
> The raw driver has been replaced by O_DIRECT support on the block device
> in 2002. Deprecate it to prepare for removal in a few kernel releases.
>
> Signed-off-by: Christoph Hellwig <[email protected]>
> ---
>
> Jens, I wonder if we can sneak this into 5.9 to have a longer deprecation
> period?

Wow, hadn't thought about this one in forever. Yeah let's see if we can
get this into 5.9. I can't imagine anyone using this thing, well, ever.

--
Jens Axboe