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authorErin Shepherd <erin.shepherd@e43.eu>2024-11-29 14:38:00 +0100
committerChristian Brauner <brauner@kernel.org>2024-12-14 12:40:40 +0100
commitd2ab36bb115b720c9c738184d4007e1ca01c53da (patch)
tree0738448a798b541b22e79263d1a75bda1602197d
parentMerge patch series "pidfs: file handle preliminaries" (diff)
downloadwireguard-linux-d2ab36bb115b720c9c738184d4007e1ca01c53da.tar.xz
wireguard-linux-d2ab36bb115b720c9c738184d4007e1ca01c53da.zip
pseudofs: add support for export_ops
Pseudo-filesystems might reasonably wish to implement the export ops (particularly for name_to_handle_at/open_by_handle_at); plumb this through pseudo_fs_context Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Erin Shepherd <erin.shepherd@e43.eu> Link: https://lore.kernel.org/r/20241113-pidfs_fh-v2-1-9a4d28155a37@e43.eu Link: https://lore.kernel.org/r/20241129-work-pidfs-file_handle-v1-1-87d803a42495@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
-rw-r--r--fs/libfs.c1
-rw-r--r--include/linux/pseudo_fs.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index 748ac5923154..2890a9c4a414 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -673,6 +673,7 @@ static int pseudo_fs_fill_super(struct super_block *s, struct fs_context *fc)
s->s_blocksize_bits = PAGE_SHIFT;
s->s_magic = ctx->magic;
s->s_op = ctx->ops ?: &simple_super_operations;
+ s->s_export_op = ctx->eops;
s->s_xattr = ctx->xattr;
s->s_time_gran = 1;
root = new_inode(s);
diff --git a/include/linux/pseudo_fs.h b/include/linux/pseudo_fs.h
index 730f77381d55..2503f7625d65 100644
--- a/include/linux/pseudo_fs.h
+++ b/include/linux/pseudo_fs.h
@@ -5,6 +5,7 @@
struct pseudo_fs_context {
const struct super_operations *ops;
+ const struct export_operations *eops;
const struct xattr_handler * const *xattr;
const struct dentry_operations *dops;
unsigned long magic;