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driver core: Remove completion from struct klist_node

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Removing the completion from klist_node reduces its size from 64 bytes
to 28 on x86-64.  To maintain the semantics of klist_remove(), we add
a single list of klist nodes which are pending deletion and scan them.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Matthew Wilcox 2008-10-16 14:57:54 -06:00 • committed by Greg Kroah-Hartman
parent 929d2fa595
commit 210272a284
2 changed files with 40 additions and 5 deletions
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2
include/linux/klist.h
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@ -13,7 +13,6 @@
#define _LINUX_KLIST_H
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/kref.h>
#include <linux/list.h>
@ -41,7 +40,6 @@ struct klist_node {
void *n_klist; /* never access directly */
struct list_head n_node;
struct kref n_ref;
struct completion n_removed;
};
extern void klist_add_tail(struct klist_node *n, struct klist *k);