diff options
| author | Filip Bozuta <Filip.Bozuta@syrmia.com> | 2020-08-23 21:50:14 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2020-09-03 01:09:35 +0200 |
| commit | 9a5a5a05523651d4c887388a6e0d0e446ffb279d (patch) | |
| tree | baa37798ff65b3b6376f80cc8f832d4bd9626208 /linux-user/ioctls.h | |
| parent | 53906f689dc6d644b0a0b8473f7909276fbabd72 (diff) | |
linux-user: Add support for btrfs ioctls used to scrub a filesystem
This patch implements functionality for following ioctls:
BTRFS_IOC_SCRUB - Starting a btrfs filesystem scrub
Start a btrfs filesystem scrub. The third ioctls argument
is a pointer to a following type:
struct btrfs_ioctl_scrub_args {
__u64 devid; /* in */
__u64 start; /* in */
__u64 end; /* in */
__u64 flags; /* in */
struct btrfs_scrub_progress progress; /* out */
/* pad to 1k */
__u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
};
Before calling this ioctl, field 'devid' should be filled
with value that represents the device id of the btrfs filesystem
for which the scrub is to be started.
BTRFS_IOC_SCRUB_CANCEL - Canceling scrub of a btrfs filesystem
Cancel a btrfs filesystem scrub if it is running. The third
ioctls argument is ignored.
BTRFS_IOC_SCRUB_PROGRESS - Getting status of a running scrub
Read the status of a running btrfs filesystem scrub. The third
ioctls argument is a pointer to the above mentioned
'struct btrfs_ioctl_scrub_args'. Similarly as with 'BTRFS_IOC_SCRUB',
the 'devid' field should be filled with value that represents the
id of the btrfs device for which the scrub has started. The status
of a running scrub is returned in the field 'progress' which is
of type 'struct btrfs_scrub_progress' and its definition can be
found at:
https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/btrfs.h#L150
Implementation nots:
Ioctls in this patch use type 'struct btrfs_ioctl_scrub_args' as their
third argument. That is the reason why an aproppriate thunk type
definition is added in file 'syscall_types.h'.
Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com>
Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200823195014.116226-9-Filip.Bozuta@syrmia.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/ioctls.h')
| -rw-r--r-- | linux-user/ioctls.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index 42759c0778..585874f090 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -215,6 +215,17 @@ #ifdef BTRFS_IOC_SUBVOL_SETFLAGS IOCTL(BTRFS_IOC_SUBVOL_SETFLAGS, IOC_W, MK_PTR(TYPE_ULONGLONG)) #endif +#ifdef BTRFS_IOC_SCRUB + IOCTL(BTRFS_IOC_SCRUB, IOC_RW, + MK_PTR(MK_STRUCT(STRUCT_btrfs_ioctl_scrub_args))) +#endif +#ifdef BTRFS_IOC_SCRUB_CANCEL + IOCTL(BTRFS_IOC_SCRUB_CANCEL, 0, TYPE_NULL) +#endif +#ifdef BTRFS_IOC_SCRUB_PROGRESS + IOCTL(BTRFS_IOC_SCRUB_PROGRESS, IOC_RW, + MK_PTR(MK_STRUCT(STRUCT_btrfs_ioctl_scrub_args))) +#endif #ifdef BTRFS_IOC_DEV_INFO IOCTL(BTRFS_IOC_DEV_INFO, IOC_RW, MK_PTR(MK_STRUCT(STRUCT_btrfs_ioctl_dev_info_args))) |