linux-kernel - [PATCH 10/14] dlm: don't use idr_remove

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Message-Id: <1359163872-1949-11-git-send-email-tj@kernel.org>
Date:	Fri, 25 Jan 2013 17:31:08 -0800
From:	Tejun Heo <tj@...nel.org>
To:	akpm@...ux-foundation.org
Cc:	rusty@...tcorp.com.au, linux-kernel@...r.kernel.org,
	Tejun Heo <tj@...nel.org>,
	Christine Caulfield <ccaulfie@...hat.com>,
	David Teigland <teigland@...hat.com>, cluster-devel@...hat.com
Subject: [PATCH 10/14] dlm: don't use idr_remove_all()

idr_destroy() can destroy idr by itself and idr_remove_all() is being
deprecated.

The conversion isn't completely trivial for recover_idr_clear() as
it's the only place in kernel which makes legitimate use of
idr_remove_all() w/o idr_destroy().  Replace it with idr_remove() call
inside idr_for_each_entry() loop.  It goes on top so that it matches
the operation order in recover_idr_del().

Only compile tested.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Christine Caulfield <ccaulfie@...hat.com>
Cc: David Teigland <teigland@...hat.com>
Cc: cluster-devel@...hat.com
---
This patch depends on an earlier idr patch and given the trivial
nature of the patch, I think it would be best to route these together
through -mm.  Please holler if there's any objection.

Thanks.

 fs/dlm/lockspace.c | 1 -
 fs/dlm/recover.c   | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 2e99fb0..3ca79d3 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -796,7 +796,6 @@ static int release_lockspace(struct dlm_ls *ls, int force)
 	 */
 
 	idr_for_each(&ls->ls_lkbidr, lkb_idr_free, ls);
-	idr_remove_all(&ls->ls_lkbidr);
 	idr_destroy(&ls->ls_lkbidr);
 
 	/*
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index b2856e7..236d108 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -359,13 +359,13 @@ static void recover_idr_clear(struct dlm_ls *ls)
 	spin_lock(&ls->ls_recover_idr_lock);
 
 	idr_for_each_entry(&ls->ls_recover_idr, r, id) {
+		idr_remove(&ls->ls_recover_idr, id);
 		r->res_id = 0;
 		r->res_recover_locks_count = 0;
 		ls->ls_recover_list_count--;
 
 		dlm_put_rsb(r);
 	}
-	idr_remove_all(&ls->ls_recover_idr);
 
 	if (ls->ls_recover_list_count != 0) {
 		log_error(ls, "warning: recover_list_count %d",
-- 
1.8.1

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