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kernfs: move struct kernfs_root out of the public view.

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There is no need to have struct kernfs_root be part of kernfs.h for
the whole kernel to see and poke around it.  Move it internal to kernfs
code and provide a helper function, kernfs_root_to_node(), to handle the
one field that kernfs users were directly accessing from the structure.

Cc: Imran Khan <imran.f.khan@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20220222070713.3517679-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2022-02-22 08:07:13 +01:00
parent b4ae8c2fb6
commit f2eb478f2f
6 changed files with 36 additions and 5 deletions
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4
include/linux/kernfs.h
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@@ -185,6 +185,7 @@ struct kernfs_syscall_ops {
struct kernfs_root *root);
};
#if 0
struct kernfs_root {
/* published fields */
struct kernfs_node *kn;
@@ -202,6 +203,9 @@ struct kernfs_root {
wait_queue_head_t deactivate_waitq;
struct rw_semaphore kernfs_rwsem;
};
#endif
struct kernfs_node *kernfs_root_to_node(struct kernfs_root *root);
struct kernfs_open_file {
/* published fields */