On 26/07/2014 15:05, Goffredo Baroncelli wrote:
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 ?
Thanks for the comments.
If its for the purpose of recreating the kernel
LIST_HEAD(fs_uuids) in the user-space, what would you
choose ? sysfs / ioctl / memory-dump / any-other better way ?
Regds, Anand
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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