Move the magic value that identifies the super block into the block
header and use it for btree blocks as well.
Signed-off-by: Zach Brown <zab@versity.com>
Update the format header to reflect that the kernel now uses a locking
service instead of using an fs/dlm lockspace. Nothing in userspace uses
locking.
Signed-off-by: Zach Brown <zab@versity.com>
The server no longer stores the address to connect to in the super
block. It's now stored in the quorum config and voting blocks.
Signed-off-by: Zach Brown <zab@versity.com>
The stage command was trivially implemented by allocating, reading, and
staging the entire region in buffer. This is unreasonable for large
file regions. Implement the stage command by having it read each
portion of the region into a smaller buffer, starting with a meg.
Signed-off-by: Zach Brown <zab@versity.com>
mkfs needs to make sure that a device is large enough for a file system.
We had a tiny limit that almost certainly wouldn't have worked.
Increase the limit to a still absurdly small but arguably possible 16
segments.
Signed-off-by: Zach Brown <zab@versity.com>
Update the format header and add a man page which describes the
corruption messages that the kernel module can spit out.
Signed-off-by: Zach Brown <zab@versity.com>
Make the changes to support the new small key struct. mkfs and print
work with simpler keys, segment items, and manifest entries. The item
cache keys ioctl now just needs to work with arrays of keys.
Signed-off-by: Zach Brown <zab@versity.com>
Lots of tests run scout stat and parse a single value. Give them an
option to have the only output be that value so they don't have to pull
it out of the output.
Signed-off-by: Zach Brown <zab@versity.com>
The previous formatting was modeled after the free form 'stat' output
and it's a real mess. Just make it a simple "name value" table.
Signed-off-by: Zach Brown <zab@versity.com>
scoutfs now directly uses the kernel dlm subsystem and offsers a debugfs
file with the current lock state. We don't need userspace to read and
format the contents of a debugging file.
Signed-off-by: Zach Brown <zab@versity.com>
With the removal of the size index items we no longer have to print them
or be able to walk the index. mkfs only needs to create a meta seq
index item for the root inode.
Signed-off-by: Zach Brown <zab@versity.com>
This command takes a device and dumps all dlmglue locks and their state to
the console. It also computes some average lock wait times. We provide a
couple of options:
--lvbs=[yes|no] turns on or off printing of lvb data (default is off)
--oneline provides a more concise per-lock printout.
Signed-off-by: Mark Fasheh <mfasheh@versity.com>
We were chopping off the command string when passing the argument array into
registered commands. getopt expects a program name as the first argument, so
change cmd_execute() to only chop off the scoutfs program name now. Now we
can parse command arguments in an easy and standard manner.
This necessitates a small update of each commands usage of argv/argc.
Signed-off-by: Mark Fasheh <mfasheh@versity.com>
