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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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2
include/trace/events/writeback.h
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@@ -136,7 +136,7 @@ DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
static inline unsigned int __trace_wb_assign_cgroup(struct bdi_writeback *wb)
{
return wb->memcg_css->cgroup->kn->ino;
return wb->memcg_css->cgroup->kn->id.ino;
}
static inline unsigned int __trace_wbc_assign_cgroup(struct writeback_control *wbc)