linux-kernel - [tip:core/locking] hpfs: Convert sbi->hpfs_creation

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Message-ID: <tip-117bf5fbdbdc7a5394e5718b3354238961c83067@git.kernel.org>
Date:	Sat, 30 Oct 2010 08:16:01 GMT
From:	tip-bot for Thomas Gleixner <tglx@...utronix.de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	peterz@...radead.org, tglx@...utronix.de, viro@...iv.linux.org.uk,
	hch@...radead.org
Subject: [tip:core/locking] hpfs: Convert sbi->hpfs_creation_de to mutex

Commit-ID:  117bf5fbdbdc7a5394e5718b3354238961c83067
Gitweb:     http://git.kernel.org/tip/117bf5fbdbdc7a5394e5718b3354238961c83067
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Tue, 7 Sep 2010 14:32:56 +0000
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sat, 30 Oct 2010 10:12:03 +0200

hpfs: Convert sbi->hpfs_creation_de to mutex

sbi->hpfs_creation_de is used as mutex so make it a mutex.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Christoph Hellwig <hch@...radead.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Al Viro <viro@...iv.linux.org.uk>
Cc: linux-fsdevel@...r.kernel.org
LKML-Reference: <20100907125056.228874895@...utronix.de>

---
 fs/hpfs/buffer.c  |    4 ++--
 fs/hpfs/hpfs_fn.h |    2 +-
 fs/hpfs/super.c   |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c
index eac5f96..793cb9d 100644
--- a/fs/hpfs/buffer.c
+++ b/fs/hpfs/buffer.c
@@ -14,7 +14,7 @@ void hpfs_lock_creation(struct super_block *s)
 #ifdef DEBUG_LOCKS
 	printk("lock creation\n");
 #endif
-	down(&hpfs_sb(s)->hpfs_creation_de);
+	mutex_lock(&hpfs_sb(s)->hpfs_creation_de);
 }
 
 void hpfs_unlock_creation(struct super_block *s)
@@ -22,7 +22,7 @@ void hpfs_unlock_creation(struct super_block *s)
 #ifdef DEBUG_LOCKS
 	printk("unlock creation\n");
 #endif
-	up(&hpfs_sb(s)->hpfs_creation_de);
+	mutex_unlock(&hpfs_sb(s)->hpfs_creation_de);
 }
 
 /* Map a sector into a buffer and return pointers to it and to the buffer. */
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index b59eac0..2fee17d 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -87,7 +87,7 @@ struct hpfs_sb_info {
 	unsigned *sb_bmp_dir;		/* main bitmap directory */
 	unsigned sb_c_bitmap;		/* current bitmap */
 	unsigned sb_max_fwd_alloc;	/* max forwad allocation */
-	struct semaphore hpfs_creation_de; /* when creating dirents, nobody else
+	struct mutex hpfs_creation_de;	/* when creating dirents, nobody else
 					   can alloc blocks */
 	/*unsigned sb_mounting : 1;*/
 	int sb_timeshift;
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index c969a1a..18e1d45 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -491,7 +491,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	sbi->sb_bmp_dir = NULL;
 	sbi->sb_cp_table = NULL;
 
-	init_MUTEX(&sbi->hpfs_creation_de);
+	mutex_init(&sbi->hpfs_creation_de);
 
 	uid = current_uid();
 	gid = current_gid();
--
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