提交 4b48d9d4 编写于 作者: L Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: fix ioctl arg size (userland incompatible change!)
  Btrfs: Clear the device->running_pending flag before bailing on congestion
......@@ -22,13 +22,20 @@
#define BTRFS_IOCTL_MAGIC 0x94
#define BTRFS_VOL_NAME_MAX 255
#define BTRFS_PATH_NAME_MAX 3072
#define BTRFS_PATH_NAME_MAX 4087
/* this should be 4k */
struct btrfs_ioctl_vol_args {
__s64 fd;
char name[BTRFS_PATH_NAME_MAX + 1];
};
struct btrfs_ioctl_clone_range_args {
__s64 src_fd;
__u64 src_offset, src_length;
__u64 dest_offset;
};
#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
......@@ -52,11 +59,6 @@ struct btrfs_ioctl_vol_args {
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
struct btrfs_ioctl_vol_args)
struct btrfs_ioctl_clone_range_args {
__s64 src_fd;
__u64 src_offset, src_length;
__u64 dest_offset;
};
#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
struct btrfs_ioctl_clone_range_args)
......
......@@ -582,7 +582,7 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
{
struct btrfs_ioctl_vol_args *vol;
struct btrfs_fs_devices *fs_devices;
int ret = 0;
int ret = -ENOTTY;
int len;
if (!capable(CAP_SYS_ADMIN))
......@@ -594,6 +594,7 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
goto out;
}
len = strnlen(vol->name, BTRFS_PATH_NAME_MAX);
switch (cmd) {
case BTRFS_IOC_SCAN_DEV:
ret = btrfs_scan_one_device(vol->name, FMODE_READ,
......
......@@ -220,6 +220,7 @@ static noinline int run_scheduled_bios(struct btrfs_device *device)
tail->bi_next = old_head;
else
device->pending_bio_tail = tail;
device->running_pending = 0;
spin_unlock(&device->io_lock);
btrfs_requeue_work(&device->work);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册