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Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 908c3d4..a578620 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2177,9 +2177,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
if (ret)
goto out;
- mutex_lock(&root->fs_info->trans_mutex);
- root->fs_info->open_ioctl_trans++;
- mutex_unlock(&root->fs_info->trans_mutex);
+ atomic_inc(&root->fs_info->open_ioctl_trans);
ret = -ENOMEM;
trans = btrfs_start_ioctl_transaction(root);
@@ -2190,9 +2188,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
return 0;
out_drop:
- mutex_lock(&root->fs_info->trans_mutex);
- root->fs_info->open_ioctl_trans--;
- mutex_unlock(&root->fs_info->trans_mutex);
+ atomic_dec(&root->fs_info->open_ioctl_trans);
mnt_drop_write(file->f_path.mnt);
out:
return ret;
@@ -2426,9 +2422,7 @@ long btrfs_ioctl_trans_end(struct file *file)
btrfs_end_transaction(trans, root);
- mutex_lock(&root->fs_info->trans_mutex);
- root->fs_info->open_ioctl_trans--;
- mutex_unlock(&root->fs_info->trans_mutex);
+ atomic_dec(&root->fs_info->open_ioctl_trans);
mnt_drop_write(file->f_path.mnt);
return 0;
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