Messages in this thread Patch in this message | | | Subject | [PATCH] add klist_node_attached() to determine if a node is on a list or not. | Date | Mon, 20 Jun 2005 15:59:25 -0700 | From | Greg KH <> |
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[PATCH] add klist_node_attached() to determine if a node is on a list or not.
Signed-off-by: Patrick Mochel <mochel@digitalimplant.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff -Nru a/include/linux/klist.h b/include/linux/klist.h
--- commit 8b0c250be489dcbf1a3a33bb4ec4c7f33735a365 tree 17935d1064101df10ad7bb2f7ed94e6a88af295c parent 2287c322b61fced7e0c326a1a9606aa73147e3df author mochel@digitalimplant.org <mochel@digitalimplant.org> Thu, 24 Mar 2005 12:58:57 -0800 committer Greg Kroah-Hartman <gregkh@suse.de> Mon, 20 Jun 2005 15:15:17 -0700
include/linux/klist.h | 2 ++ lib/klist.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/include/linux/klist.h b/include/linux/klist.h --- a/include/linux/klist.h +++ b/include/linux/klist.h @@ -37,6 +37,8 @@ extern void klist_add_head(struct klist extern void klist_del(struct klist_node * n); extern void klist_remove(struct klist_node * n); +extern int klist_node_attached(struct klist_node * n); + struct klist_iter { struct klist * i_klist; diff --git a/lib/klist.c b/lib/klist.c --- a/lib/klist.c +++ b/lib/klist.c @@ -112,6 +112,7 @@ static void klist_release(struct kref * struct klist_node * n = container_of(kref, struct klist_node, n_ref); list_del(&n->n_node); complete(&n->n_removed); + n->n_klist = NULL; } static int klist_dec_and_del(struct klist_node * n) @@ -154,6 +155,19 @@ EXPORT_SYMBOL_GPL(klist_remove); /** + * klist_node_attached - Say whether a node is bound to a list or not. + * @n: Node that we're testing. + */ + +int klist_node_attached(struct klist_node * n) +{ + return (n->n_klist != NULL); +} + +EXPORT_SYMBOL_GPL(klist_node_attached); + + +/** * klist_iter_init_node - Initialize a klist_iter structure. * @k: klist we're iterating. * @i: klist_iter we're filling. @@ -246,3 +260,5 @@ struct klist_node * klist_next(struct kl } EXPORT_SYMBOL_GPL(klist_next); + + - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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