diff mbox series

[v2,07/10] block: define meta io descriptor

Message ID 20240626100700.3629-8-anuj20.g@samsung.com (mailing list archive)
State New
Headers show
Series Read/Write with meta/integrity | expand

Commit Message

Anuj Gupta June 26, 2024, 10:06 a.m. UTC 
From: Kanchan Joshi <joshi.k@samsung.com>

Introduces a new 'uio_meta' structure that upper layer can
use to pass the meta/integrity information. This is a prep patch.

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
---
 include/linux/bio.h | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Christoph Hellwig June 27, 2024, 6:22 a.m. UTC | #1 
> +struct uio_meta {
> +	u16 flags;
> +	u16 apptag;
> +	struct iov_iter iter;
> +};

Everything else in the kernel uses app_tag instead of apptag, maybe
follow that here.

What flags go into flags?  Should this be a __bitwise type?
Also bio.h is used by every file system and all block drivers.
Should this be in bio-integrity.h instead?
diff mbox series

Patch

diff --git a/include/linux/bio.h b/include/linux/bio.h
index c90168274188..966e22a04996 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -332,6 +332,12 @@  enum bip_flags {
 	BIP_CLONED		= 1 << 7, /* Indicates that bip is cloned */
 };
 
+struct uio_meta {
+	u16 flags;
+	u16 apptag;
+	struct iov_iter iter;
+};
+
 /*
  * bio integrity payload
  */