linux-kernel - [PATCH v2] staging/lustre: annotate lock/unlock in lov_stripe_lock / lov_stripe

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Message-Id: <1410083200-3114-1-git-send-email-mbmcode@gmail.com>
Date:	Sun,  7 Sep 2014 11:46:40 +0200
From:	Mostyn Bramley-Moore <mbmcode@...il.com>
To:	Oleg Drokin <oleg.drokin@...el.com>, mbmcode@...il.com
Cc:	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org
Subject: [PATCH v2] staging/lustre: annotate lock/unlock in lov_stripe_lock / lov_stripe_unlock

Annotate the lock/unlock pair in lov_stripe_lock/lov_stripe_unlock to
avoid sparse warning about a context imbalance.
Part of the eudyptula challenge: http://eudyptula-challenge.org/

Signed-off-by: Mostyn Bramley-Moore <mbmcode@...il.com>
---
 drivers/staging/lustre/lustre/lov/lov_obd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index cb778df..0baef6a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -2649,6 +2649,7 @@ static int lov_extent_calc(struct obd_export *exp, struct lov_stripe_md *lsm,
 }
 
 void lov_stripe_lock(struct lov_stripe_md *md)
+		__acquires(&md->lsm_lock)
 {
 	LASSERT(md->lsm_lock_owner != current_pid());
 	spin_lock(&md->lsm_lock);
@@ -2658,6 +2659,7 @@ void lov_stripe_lock(struct lov_stripe_md *md)
 EXPORT_SYMBOL(lov_stripe_lock);
 
 void lov_stripe_unlock(struct lov_stripe_md *md)
+		__releases(&md->lsm_lock)
 {
 	LASSERT(md->lsm_lock_owner == current_pid());
 	md->lsm_lock_owner = 0;
-- 
1.9.1

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