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The raw driver has been replaced by O_DIRECT support on the block device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 <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 380bf51..ccf5bd5 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);
/*