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From: Christian Brauner <brauner@kernel.org>
To: Jeff Layton <jlayton@kernel.org>,
	Chuck Lever <chuck.lever@oracle.com>,  Jan Kara <jack@suse.cz>,
	Amir Goldstein <amir73il@gmail.com>,
	 Simona Vetter <simona@ffwll.ch>
Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org,
	 Christian Brauner <brauner@kernel.org>
Subject: [PATCH 6/9] exportfs: add FILEID_PIDFS
Date: Mon, 23 Jun 2025 11:01:28 +0200	[thread overview]
Message-ID: <20250623-work-pidfs-fhandle-v1-6-75899d67555f@kernel.org> (raw)
In-Reply-To: <20250623-work-pidfs-fhandle-v1-0-75899d67555f@kernel.org>

Introduce new pidfs file handle values.

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 include/linux/exportfs.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 25c4a5afbd44..45b38a29643f 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -99,6 +99,11 @@ enum fid_type {
 	 */
 	FILEID_FAT_WITH_PARENT = 0x72,
 
+	/*
+	 * 64 bit inode number.
+	 */
+	FILEID_INO64 = 0x80,
+
 	/*
 	 * 64 bit inode number, 32 bit generation number.
 	 */
@@ -131,6 +136,12 @@ enum fid_type {
 	 * Filesystems must not use 0xff file ID.
 	 */
 	FILEID_INVALID = 0xff,
+
+	/* Internal kernel fid types */
+
+	/* pidfs fid types */
+	FILEID_PIDFS_FSTYPE = 0x100,
+	FILEID_PIDFS = FILEID_PIDFS_FSTYPE | FILEID_INO64,
 };
 
 struct fid {

-- 
2.47.2


  parent reply	other threads:[~2025-06-23  9:01 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-23  9:01 [PATCH 0/9] fhandle, pidfs: allow open_by_handle_at() purely based on file handle Christian Brauner
2025-06-23  9:01 ` [PATCH 1/9] fhandle: raise FILEID_IS_DIR in handle_type Christian Brauner
2025-06-23 11:31   ` Jan Kara
2025-06-23  9:01 ` [PATCH 2/9] fhandle: hoist copy_from_user() above get_path_from_fd() Christian Brauner
2025-06-23 11:33   ` Jan Kara
2025-06-23  9:01 ` [PATCH 3/9] fhandle: rename to get_path_anchor() Christian Brauner
2025-06-23 11:34   ` Jan Kara
2025-06-23  9:01 ` [PATCH 4/9] pidfs: add pidfs_root_path() helper Christian Brauner
2025-06-23 11:46   ` Jan Kara
2025-06-23  9:01 ` [PATCH 5/9] fhandle: reflow get_path_anchor() Christian Brauner
2025-06-23 11:39   ` Jan Kara
2025-06-23  9:01 ` Christian Brauner [this message]
2025-06-23 11:55   ` [PATCH 6/9] exportfs: add FILEID_PIDFS Jan Kara
2025-06-23 11:58     ` Christian Brauner
2025-06-23 12:22       ` Amir Goldstein
2025-06-23 12:41         ` Jan Kara
2025-06-23 13:05           ` Amir Goldstein
2025-06-23 13:18             ` Jan Kara
2025-06-23 14:05               ` Amir Goldstein
2025-06-23 19:17                 ` Christian Brauner
2025-06-24  8:25                   ` Christian Brauner
2025-06-23  9:01 ` [PATCH 7/9] fhandle: add EXPORT_OP_AUTONOMOUS_HANDLES marker Christian Brauner
2025-06-23 11:58   ` Jan Kara
2025-06-23 12:37     ` Amir Goldstein
2025-06-23  9:01 ` [PATCH 8/9] fhandle, pidfs: support open_by_handle_at() purely based on file handle Christian Brauner
2025-06-23 12:06   ` Jan Kara
2025-06-23 12:25     ` Christian Brauner
2025-06-23 12:54       ` Amir Goldstein
2025-06-23 13:00         ` Christian Brauner
2025-06-23 13:21           ` Jan Kara
2025-06-23 14:00             ` Amir Goldstein
2025-06-23 13:29       ` Jan Kara
2025-06-23  9:01 ` [PATCH 9/9] selftests/pidfd: decode pidfd file handles withou having to specify an fd Christian Brauner

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