sbin/*hammer: Use typedef'd for struct cache_info*

This is a part of series of commits started from 21e9e7d5ff in 2016.
This is for userspace.

sbin/*hammer: Use typedef'd for struct buffer_info*

This is a part of series of commits started from 21e9e7d5ff in 2016.
This is for userspace.

sbin/hammer: Partly bring back removed braces from 52e2f1b5

based on comments from dillon@.

(dillon) three types, yah. (1) multi-line condition in if(), (2) if TRUE or FALSE body spans more than o

sbin/hammer: Partly bring back removed braces from 52e2f1b5

based on comments from dillon@.

(dillon) three types, yah. (1) multi-line condition in if(), (2) if TRUE or FALSE body spans more than one line, put braces around both
(dillon) (including if a comment is part of the body)

show more ...

sbin/hammer: Cleanup blocks with a single statement

This commit basically does the same as what Linux kernel's coding
style mentions for braces, which is basically the same with BSDs.
https://github

sbin/hammer: Cleanup blocks with a single statement

This commit basically does the same as what Linux kernel's coding
style mentions for braces, which is basically the same with BSDs.
https://github.com/torvalds/linux/blob/master/Documentation/process/coding-style.rst#3-placing-braces-and-spaces

No diff in sbin/hammer/hammer binary when assert(3) is disabled.

show more ...

sbin/hammer: Refactor hammer_cache_flush()

sbin/hammer: Remove redundant cache counter NCache

Incrementation and decrementation of NCache is always aligned
with CacheUse in a single thread program like /sbin/hammer,
so this cache counter isn

sbin/hammer: Remove redundant cache counter NCache

Incrementation and decrementation of NCache is always aligned
with CacheUse in a single thread program like /sbin/hammer,
so this cache counter isn't necessary.

show more ...

sbin/hammer: Use HAMMER_BUFSIZE to calculate CacheMax

CacheMax is to be compared with multiple of HAMMER_BUFSIZE,
so use HAMMER_BUFSIZE to initialize CacheMax.

sbin/hammer: Remove hammer_cache_set()

sbin/hammer: Make use of struct buffer_info::cache at offset 0

No need to hold a pointer to each other.

sbin/newfs_hammer: Add -C option from hammer(8)

Just to support the same options given that these are both based
on the same volume/buffer structure.

sbin/hammer: Remove debug printfs

These debug printfs are no longer really used for anything and
probably by anyone as /sbin/hammer is stable enough.

These printfs generate tons of output to stderr

sbin/hammer: Remove debug printfs

These debug printfs are no longer really used for anything and
probably by anyone as /sbin/hammer is stable enough.

These printfs generate tons of output to stderr, so it would be
more convenient to just add some printfs to wherever necessary
or use gdb for whatever issues found, rather than using these.

show more ...

sbin/hammer: Remove unused buffer 'type' in cache

HAMMER userspace cache is only used by general ondisk buffer.
Ondisk volume header doesn't use the cache structure.
Each program always has to expli

sbin/hammer: Remove unused buffer 'type' in cache

HAMMER userspace cache is only used by general ondisk buffer.
Ondisk volume header doesn't use the cache structure.
Each program always has to explicitly flush ondisk volume header.

This commit removes buffer 'type' from cache structure since
'type' is always general ondisk buffer (non-volume buffer).

show more ...

sbin/hammer: Cleanup header includes regarding hammer_util.h

hammer: Conform to style(9)

Also
* Remove header includes that are already included by
common hammer headers (of either userspace or kernel).
* Add "#include <sys/vnode.h>" to sys/vfs/fifofs/fifo.

hammer: Conform to style(9)

Also
* Remove header includes that are already included by
common hammer headers (of either userspace or kernel).
* Add "#include <sys/vnode.h>" to sys/vfs/fifofs/fifo.h.

show more ...

sbin/hammer: Enable AssertOnFailure on -d for hammer show/checkmap

sbin/hammer: Properly set counter in cache flushing loop

- This local variable 'count' being reset to 0 was probably intended
to be set to 1, because otherwise --count; right after this makes
it

sbin/hammer: Properly set counter in cache flushing loop

- This local variable 'count' being reset to 0 was probably intended
to be set to 1, because otherwise --count; right after this makes
it negative (which takes extra count before next CacheMax expansion).
This makes no difference to results of hammer commands.

show more ...

sbin/hammer: Use existing function hammer_cache_used()

- Use existing function hammer_cache_used() for list operation.

sbin/hammer: Properly break from cache flush loop

- hammer_cache_flush() needs to keep track of the first element
that was pushed back to tail of the list (ref!=0), and break from
the loop if it

sbin/hammer: Properly break from cache flush loop

- hammer_cache_flush() needs to keep track of the first element
that was pushed back to tail of the list (ref!=0), and break from
the loop if it hits that element for the second time.

- It's currently working without above check because it breaks from
the loop after it has accomplished 'target'. If this function was
changed to release unlimited number of cache then it'll loop
forever unless tracking those that can't be released (ref!=0).

show more ...

sbin/hammer: Add debug printf on cache flushing

- Add debug fprintf to stderr on cache flushing that shows
the number of buffers released.

Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

hammer(8): whitespace cleanup: delete blank at end of line

HAMMER UTILITY - reorg cache, add -C, document blockmap and show command.

* Reorganize the way the local block cache works (in the utility, not the
filesystem). Add the -C option to specify cache

HAMMER UTILITY - reorg cache, add -C, document blockmap and show command.

* Reorganize the way the local block cache works (in the utility, not the
filesystem). Add the -C option to specify cache size and read-ahead.

* Document the blockmap command and enhance the documentation for the show
command.

show more ...

HAMMER UTIL - Add -C cachesize option to improve the 'show' command.

* Allows the default in-memory cache size of 16m to be changed.

HAMMER Utilities: Stabilization pass.

* Fix a bug in 'hammer show' which caused the cache to expand indefinitely.

HAMMER 27/many: Major surgery - change allocation model

After getting stuck on the recovery code and highly unoptimal write
performance issues, remove the super-cluster/cluster and radix tree bitmap

HAMMER 27/many: Major surgery - change allocation model

After getting stuck on the recovery code and highly unoptimal write
performance issues, remove the super-cluster/cluster and radix tree bitmap
infrastructure and replace it with a circular FIFO.

* Nothing is localized yet with this major surgery commit, which means
radix nodes, hammer records, file data, and undo fifo elements are
all being written to a single fifo. These elements will soon get their
own abstracted fifos (and in particular, the undo elements will get a
fixed-sized circular fifo and be considered temporary data).

* No sequence numbers or transaction spaces are generated yet.

* Create a 'hammer_off_t' type (64 bits). This type reserves 4 bits for
a zone. Zones which encode volume numbers reserve another 8 bits,
giving us a 52 bit byte offset able to represent up to 4096 TB per
volume. Zones which do not encode volume numbers have 60 bits available
for an abstracted offset, resulting in a maximum filesystem size of
2^60 bytes (1 MTB). Up to 15 zones can be encoded.

As of this commit only 2 zones are implemented to wrap up existing
functionality.

* Adjust the B-Tree to use full 64 bit hammer offsets. Have one global B-Tree
for the entire filesystem. The tree is no longer per-cluster.

* Scrap the recovery and spike code. Scrap the cluster and super-cluster
code. Scrap those portions of the B-Tree code that dealt with spikes.
Scrap those portions of the IO subsystem that dealt with marking a
cluster open or closed.

* Expand the hammer_modify_*() functions to include a data range and add
UNDO record generation. Do not implement buffer ordering dependancies
yet (ordering issues are going change radically with the FIFO model).

show more ...