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kernfs: introduce kernfs_node_id

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inode number and generation can identify a kernfs node. We are going to
export the identification by exportfs operations, so put ino and
generation into a separate structure. It's convenient when later patches
use the identification.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Shaohua Li 2017-07-12 11:49:50 -07:00 • committed by Jens Axboe
parent 319ba91d35
commit c53cd490b1
6 changed files with 21 additions and 13 deletions
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include/linux/cgroup.h
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@ -543,7 +543,7 @@ static inline bool cgroup_is_populated(struct cgroup *cgrp)
/* returns ino associated with a cgroup */
static inline ino_t cgroup_ino(struct cgroup *cgrp)
{
return cgrp->kn->ino;
return cgrp->kn->id.ino;
}
/* cft/css accessors for cftype->write() operation */