Re: [PATCH not for integration] btrfs-devlist: dumps btrfs_device and btrfs_fs_devices from kernel

[Goffredo Baroncelli <kreijack@libero.it>]

On 07/25/2014 02:33 PM, Anand Jain wrote:
> This would dump the following info:
> 
> fs_address dev_address dev_root_addr root_fsid
> fsid name uuid (seed_fsid@seed_addr sprout_fsid@sprout_addr) 
> 	(fs_num_devices fs_open_devices fs_rw_devices fs_missing_devices fs_total_devices) fs_total_rw_bytes fs_num_can_discard
> 	devid gen total_bytes disk_total_bytes bytes_used type io_align io_width sector_size fmode 
> 	not_fs_Mounted|not_fs_Seeding|not_fs_Rotating
> 	not_Writable|not_MD|not_Missing|not_Discard|not_Replace_tgt|not_Run_pending|not_Nobarriers|not_Stat_valid|not_Bdev
> 
> Applies on Chris integration branch now

Hi Anand,

why not export these information via sysfs ? 

BR
G.Baroncelli

> 
> Anand Jain (1):
>   btrfs: introduce BTRFS_IOC_GET_DEVS
> 
>  fs/btrfs/super.c           |  86 +++++++++++++++++++++++++++
>  fs/btrfs/volumes.c         | 145 +++++++++++++++++++++++++++++++++++++++++++++
>  fs/btrfs/volumes.h         |   3 +
>  include/uapi/linux/btrfs.h |  53 ++++++++++++++++-
>  4 files changed, 286 insertions(+), 1 deletion(-)
> 
> Anand Jain (1):
>   btrfs-progs: introduce btrfs-devlist
> 
>  .gitignore      |   1 +
>  Makefile        |   4 +-
>  btrfs-devlist.c | 268 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  ioctl.h         |  52 +++++++++++
>  4 files changed, 323 insertions(+), 2 deletions(-)
>  create mode 100644 btrfs-devlist.c
> 


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