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Commit fe6e24ec authored by Tejun Heo's avatar Tejun Heo Committed by Linus Torvalds
Browse files

idr: deprecate idr_remove_all() 



There was only one legitimate use of idr_remove_all() and a lot more of
incorrect uses (or lack of it).  Now that idr_destroy() implies
idr_remove_all() and all the in-kernel users updated not to use it,
there's no reason to keep it around.  Mark it deprecated so that we can
later unexport it.

idr_remove_all() is made an inline function calling __idr_remove_all()
to avoid triggering deprecated warning on EXPORT_SYMBOL().

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c897ff68

include/linux/idr.h

+13 −1
Original line number Diff line number Diff line
@@ -110,10 +110,22 @@ int idr_for_each(struct idr *idp, 
void *idr_get_next(struct idr *idp, int *nextid);

void *idr_replace(struct idr *idp, void *ptr, int id);

void idr_remove(struct idr *idp, int id);

void idr_remove_all(struct idr *idp);

void idr_destroy(struct idr *idp);

void idr_init(struct idr *idp);



void __idr_remove_all(struct idr *idp);	/* don't use */



/**

 * idr_remove_all - remove all ids from the given idr tree

 * @idp: idr handle

 *

 * If you're trying to destroy @idp, calling idr_destroy() is enough.

 * This is going away.  Don't use.

 */

static inline void __deprecated idr_remove_all(struct idr *idp)

{

	__idr_remove_all(idp);

}



/*

 * IDA - IDR based id allocator, use when translation from id to

lib/idr.c

+3 −7
Original line number Diff line number Diff line
@@ -433,11 +433,7 @@ void idr_remove(struct idr *idp, int id) 
}

EXPORT_SYMBOL(idr_remove);



/**

 * idr_remove_all - remove all ids from the given idr tree

 * @idp: idr handle

 */

void idr_remove_all(struct idr *idp)

void __idr_remove_all(struct idr *idp)

{

	int n, id, max;

	int bt_mask;
@@ -470,7 +466,7 @@ void idr_remove_all(struct idr *idp) 
	}

	idp->layers = 0;

}

EXPORT_SYMBOL(idr_remove_all);

EXPORT_SYMBOL(__idr_remove_all);



/**

 * idr_destroy - release all cached layers within an idr tree
@@ -487,7 +483,7 @@ EXPORT_SYMBOL(idr_remove_all); 
 */

void idr_destroy(struct idr *idp)

{

	idr_remove_all(idp);

	__idr_remove_all(idp);



	while (idp->id_free_cnt) {

		struct idr_layer *p = get_from_free_list(idp);