From 117bf5fbdbdc7a5394e5718b3354238961c83067 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 7 Sep 2010 14:32:56 +0000 Subject: 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 Acked-by: Christoph Hellwig Cc: Peter Zijlstra Cc: Al Viro Cc: linux-fsdevel@vger.kernel.org LKML-Reference: <20100907125056.228874895@linutronix.de> --- fs/hpfs/buffer.c | 4 ++-- fs/hpfs/hpfs_fn.h | 2 +- fs/hpfs/super.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'fs') diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c index eac5f96323e..793cb9d943d 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 b59eac0232a..2fee17d0d9a 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 c969a1aa163..18e1d4566ec 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(); -- cgit v1.2.3 From 51dfacdef38b1dd6fc58b03dd1725d517516b115 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 16 Oct 2010 22:34:39 +0200 Subject: jbd2: Convert jbd2_slab_create_sem to mutex jbd2_slab_create_sem is used as a mutex, so make it one. [ akpm muttered: We may as well make it local to jbd2_journal_create_slab() also. ] Signed-off-by: Thomas Gleixner Cc: Ted Ts'o Cc: Andrew Morton LKML-Reference: Signed-off-by: Thomas Gleixner --- fs/jbd2/journal.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'fs') diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 538417c1fdb..c590d155c09 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1838,7 +1838,6 @@ size_t journal_tag_bytes(journal_t *journal) */ #define JBD2_MAX_SLABS 8 static struct kmem_cache *jbd2_slab[JBD2_MAX_SLABS]; -static DECLARE_MUTEX(jbd2_slab_create_sem); static const char *jbd2_slab_names[JBD2_MAX_SLABS] = { "jbd2_1k", "jbd2_2k", "jbd2_4k", "jbd2_8k", @@ -1859,6 +1858,7 @@ static void jbd2_journal_destroy_slabs(void) static int jbd2_journal_create_slab(size_t size) { + static DEFINE_MUTEX(jbd2_slab_create_mutex); int i = order_base_2(size) - 10; size_t slab_size; @@ -1870,16 +1870,16 @@ static int jbd2_journal_create_slab(size_t size) if (unlikely(i < 0)) i = 0; - down(&jbd2_slab_create_sem); + mutex_lock(&jbd2_slab_create_mutex); if (jbd2_slab[i]) { - up(&jbd2_slab_create_sem); + mutex_unlock(&jbd2_slab_create_mutex); return 0; /* Already created */ } slab_size = 1 << (i+10); jbd2_slab[i] = kmem_cache_create(jbd2_slab_names[i], slab_size, slab_size, 0, NULL); - up(&jbd2_slab_create_sem); + mutex_unlock(&jbd2_slab_create_mutex); if (!jbd2_slab[i]) { printk(KERN_EMERG "JBD2: no memory for jbd2_slab cache\n"); return -ENOMEM; -- cgit v1.2.3