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| author | Amir Goldstein <amir73il@gmail.com> | 2023-05-02 14:48:15 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2023-05-22 18:08:37 +0200 |
| commit | 304e9c83e80d5cbe20ab64ffa1fac9fc51d30bc9 (patch) | |
| tree | b35027d2a0417c5062f9c81f63e2ee98496d29d9 /Documentation/filesystems | |
| parent | exportfs: change connectable argument to bit flags (diff) | |
| download | linux-304e9c83e80d5cbe20ab64ffa1fac9fc51d30bc9.tar.xz linux-304e9c83e80d5cbe20ab64ffa1fac9fc51d30bc9.zip | |
exportfs: add explicit flag to request non-decodeable file handles
So far, all callers of exportfs_encode_inode_fh(), except for fsnotify's
show_mark_fhandle(), check that filesystem can decode file handles, but
we would like to add more callers that do not require a file handle that
can be decoded.
Introduce a flag to explicitly request a file handle that may not to be
decoded later and a wrapper exportfs_encode_fid() that sets this flag
and convert show_mark_fhandle() to use the new wrapper.
This will be used to allow adding fanotify support to filesystems that
do not support NFS export.
Acked-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230502124817.3070545-3-amir73il@gmail.com>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/nfs/exporting.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/filesystems/nfs/exporting.rst b/Documentation/filesystems/nfs/exporting.rst index 0e98edd353b5..3d97b8d8f735 100644 --- a/Documentation/filesystems/nfs/exporting.rst +++ b/Documentation/filesystems/nfs/exporting.rst @@ -122,8 +122,8 @@ are exportable by setting the s_export_op field in the struct super_block. This field must point to a "struct export_operations" struct which has the following members: - encode_fh (optional) - Takes a dentry and creates a filehandle fragment which can later be used + encode_fh (optional) + Takes a dentry and creates a filehandle fragment which may later be used to find or create a dentry for the same object. The default implementation creates a filehandle fragment that encodes a 32bit inode and generation number for the inode encoded, and if necessary the |