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NeilBrown [Fri, 25 Mar 2011 21:33:27 +0000 (08:33 +1100)]
Add name creation in directories, and implement 'store'
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 25 Mar 2011 21:32:30 +0000 (08:32 +1100)]
Fix buglet in lafs_imap_set
condition was backwards so we never set these.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 25 Mar 2011 21:32:30 +0000 (08:32 +1100)]
Add B_Uninc flag.
We need to know if a block is already on an uninc list so we
don't put it there again.
So use a flag.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 25 Mar 2011 21:32:30 +0000 (08:32 +1100)]
Add lafs_find_free
to find some free segments.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 25 Mar 2011 21:32:10 +0000 (08:32 +1100)]
Support flushing blocks without forcing them into a checkpoint.
Each inode has a list of blocks that are either dirty or own and
inode which has a list of blocks.
Then 'flush' can go through this list and flush them to a
write_cluster.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Thu, 24 Mar 2011 04:39:18 +0000 (15:39 +1100)]
Remove lots of white-space errors
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 21 Mar 2011 09:19:26 +0000 (20:19 +1100)]
inode map allocation
add lafs_imap_alloc and use it to allocate an inode number for
segment usage file.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 21 Mar 2011 06:39:29 +0000 (17:39 +1100)]
Add 'remainder' arg to lafs_lookup_path
This allows us to find where to create something.
If 'remainder' is provided, the tail of the path that couldn't
be found is placed there, and the last directory that was found is
returned.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 21 Mar 2011 02:37:05 +0000 (13:37 +1100)]
Add support for internal path lookup
Also auto-completion of 'internal' path names.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 20 Mar 2011 09:12:35 +0000 (20:12 +1100)]
Add 'ls' command and directory searching.
Also 'lafs_find_next' to find next allocated block.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 20 Mar 2011 07:34:28 +0000 (18:34 +1100)]
Add blockbits field to struct lafs
We will need it for directory manipulations.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 20 Mar 2011 05:29:26 +0000 (16:29 +1100)]
lafs: save history to ~/.lafs_history
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 20 Mar 2011 05:23:05 +0000 (16:23 +1100)]
Add lafs_print_inode / show inode command
Plus a few bug-fixes
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sat, 19 Mar 2011 08:45:27 +0000 (19:45 +1100)]
Make write_* subcommands for a common 'write'.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sat, 19 Mar 2011 08:37:36 +0000 (19:37 +1100)]
show state command and library function
Shows either a state block read of disk, or similar info for
current filesystem.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sat, 19 Mar 2011 07:51:40 +0000 (18:51 +1100)]
add mount command
new command for 'lafs' and lafs_mount in library.
Doesn't load the root inode yet, just locates it.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sat, 19 Mar 2011 03:56:40 +0000 (14:56 +1100)]
lafs: save device name in load_dev
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sat, 19 Mar 2011 03:32:59 +0000 (14:32 +1100)]
lafs: add "show device" and associated library routines.
"show device" can show a loaded device, or can show the device block
from an arbitrary location on a device.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 18 Mar 2011 05:34:08 +0000 (16:34 +1100)]
lafs: allow "--tag value" as well as "--tag=value"
... as fingers seem like this pattern too.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 18 Mar 2011 05:24:28 +0000 (16:24 +1100)]
Add 'load_dev' command and matching library functions.
These will load the device blocks from a file, then load the
best state block, making sure everything is compatible.
Signed-off-by; NeilBrown <neilb@suse.de>
NeilBrown [Tue, 15 Mar 2011 09:28:30 +0000 (20:28 +1100)]
lafs: make 'statesize' a choice.
It must be a power of 2, so it can easily be a 'choice'.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 14 Mar 2011 01:22:17 +0000 (12:22 +1100)]
Get lafs_add_device to add free segments to the list.
This allows a full mkfs to complete.
Also fix a bug in lafs_add_inode. A subsequent call to
lafs_get_inode would re-initialise the block.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 14 Mar 2011 01:22:17 +0000 (12:22 +1100)]
lafs: add write_checkpoint
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 14 Mar 2011 01:22:17 +0000 (12:22 +1100)]
lafs: add write_state command
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 14 Mar 2011 01:22:17 +0000 (12:22 +1100)]
lafs: add write_dev command
I probably want to make this "write dev" at some stage, so there will
also be "write state" and "write checkpoint"
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 14 Mar 2011 01:21:55 +0000 (12:21 +1100)]
lafs: Add creation of special inodes to newfs/add_device
Also add "lafs_get_inode" to library.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 23:12:20 +0000 (10:12 +1100)]
lafs: add 'add_device' command
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 22:46:19 +0000 (09:46 +1100)]
Split out size parsing into separate file
So we have common code for understanding 'K,M,G' suffix.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 22:46:17 +0000 (09:46 +1100)]
Split open_device out of mkfs.lafs
'lafs' will need this, so make it a separate file.
Not in liblafs as it isn't really that generic.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 06:13:37 +0000 (17:13 +1100)]
mkfs.lafs should give an error on size-zero devices.
size==0 sometimes means we have already printed a message..
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 06:13:35 +0000 (17:13 +1100)]
Add lafs_validate_geometry for mkfs.
Split this out of mkfs and put it in library for 'lafs' to use.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 03:39:07 +0000 (14:39 +1100)]
Add 'reset' and 'newfs' commands.
Also fix 'runfile' so it sees EOF, and add 'verbose' state.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 03:10:31 +0000 (14:10 +1100)]
Discard 'terminal' arg type.
At one stage during development, that 'tag' of a positional arg was
NULL so we couldn't used that to mark end-of-list, so we used
a special 'type' instead.
But now 'tag' is always non-NULL we can used tag==NULL to mark
end of list, so get rid of the 'terminal' type.
Fix some bugs too...
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 13 Mar 2011 02:55:03 +0000 (13:55 +1100)]
Add 'choice' argument type.
A 'choice' must be selected from a set list of options.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sat, 12 Mar 2011 07:58:32 +0000 (18:58 +1100)]
Add new "lafs" program
"lafs" is similar to "debugfs" for ext[234].
It allows a LaFS to be examined and modified.
Various commands can be enterred, or read from a file.
This preliminary check-in only provides the infrastructure
for reading and parsing commands together with support for
context sensitive completion and help using readline.
Commands implemented are:
? help exit quit
Naturally more will follow.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 2 Mar 2011 23:39:26 +0000 (10:39 +1100)]
mkfs: allow creation of a filesystem on a regular file.
Primarily for ease of testing.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 2 Mar 2011 23:23:09 +0000 (10:23 +1100)]
mkfs: provide minimal feedback when creating array.
Rather then silence, report number and size of segments.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 2 Mar 2011 23:17:47 +0000 (10:17 +1100)]
mkfs: adjust segment size based on device size, and complain if it didn't work.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 2 Mar 2011 23:02:31 +0000 (10:02 +1100)]
Add tracing control to liblafs
'printf' becomes 'trace' and can now be turned on/off by an
environment variable.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 2 Mar 2011 22:44:45 +0000 (09:44 +1100)]
mkfs: add accesstime file to new filesystem
But allow this to be suppressed with --no-atime-file
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 15 Oct 2010 02:46:57 +0000 (13:46 +1100)]
Fix compilation on 32bit arch.
Some printf warnings.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Sun, 10 Oct 2010 23:59:10 +0000 (10:59 +1100)]
Make filesystem name field variable-length.
This mirrors similar change in kernel module code.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Fri, 1 Oct 2010 12:36:35 +0000 (22:36 +1000)]
Initial checking of lafs-utils
Basic mkfs.lafs works.
Signed-off-by: NeilBrown <neilb@suse.de>