diff options
Diffstat (limited to 'fs/super.c')
| -rw-r--r-- | fs/super.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/fs/super.c b/fs/super.c index e20b5580afd..a66f66bb804 100644 --- a/fs/super.c +++ b/fs/super.c @@ -37,6 +37,7 @@ #include <linux/writeback.h> /* for the emergency remount stuff */ #include <linux/idr.h> #include <linux/kobject.h> +#include <linux/mutex.h> #include <asm/uaccess.h> @@ -55,11 +56,10 @@ DEFINE_SPINLOCK(sb_lock); */ static struct super_block *alloc_super(void) { - struct super_block *s = kmalloc(sizeof(struct super_block), GFP_USER); + struct super_block *s = kzalloc(sizeof(struct super_block), GFP_USER); static struct super_operations default_op; if (s) { - memset(s, 0, sizeof(struct super_block)); if (security_sb_alloc(s)) { kfree(s); s = NULL; @@ -76,9 +76,9 @@ static struct super_block *alloc_super(void) down_write(&s->s_umount); s->s_count = S_BIAS; atomic_set(&s->s_active, 1); - sema_init(&s->s_vfs_rename_sem,1); - sema_init(&s->s_dquot.dqio_sem, 1); - sema_init(&s->s_dquot.dqonoff_sem, 1); + mutex_init(&s->s_vfs_rename_mutex); + mutex_init(&s->s_dquot.dqio_mutex); + mutex_init(&s->s_dquot.dqonoff_mutex); init_rwsem(&s->s_dquot.dqptr_sem); init_waitqueue_head(&s->s_wait_unfrozen); s->s_maxbytes = MAX_NON_LFS; @@ -381,9 +381,9 @@ restart: void sync_filesystems(int wait) { struct super_block *sb; - static DECLARE_MUTEX(mutex); + static DEFINE_MUTEX(mutex); - down(&mutex); /* Could be down_interruptible */ + mutex_lock(&mutex); /* Could be down_interruptible */ spin_lock(&sb_lock); list_for_each_entry(sb, &super_blocks, s_list) { if (!sb->s_op->sync_fs) @@ -412,7 +412,7 @@ restart: goto restart; } spin_unlock(&sb_lock); - up(&mutex); + mutex_unlock(&mutex); } /** @@ -693,9 +693,9 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type, * will protect the lockfs code from trying to start a snapshot * while we are mounting */ - down(&bdev->bd_mount_sem); + mutex_lock(&bdev->bd_mount_mutex); s = sget(fs_type, test_bdev_super, set_bdev_super, bdev); - up(&bdev->bd_mount_sem); + mutex_unlock(&bdev->bd_mount_mutex); if (IS_ERR(s)) goto out; @@ -712,7 +712,7 @@ struct super_block *get_sb_bdev(struct file_system_type *fs_type, s->s_flags = flags; strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id)); sb_set_blocksize(s, block_size(bdev)); - error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0); + error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); if (error) { up_write(&s->s_umount); deactivate_super(s); @@ -756,7 +756,7 @@ struct super_block *get_sb_nodev(struct file_system_type *fs_type, s->s_flags = flags; - error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0); + error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); if (error) { up_write(&s->s_umount); deactivate_super(s); @@ -785,7 +785,7 @@ struct super_block *get_sb_single(struct file_system_type *fs_type, return s; if (!s->s_root) { s->s_flags = flags; - error = fill_super(s, data, flags & MS_VERBOSE ? 1 : 0); + error = fill_super(s, data, flags & MS_SILENT ? 1 : 0); if (error) { up_write(&s->s_umount); deactivate_super(s); |