zfs/lib
Brian Behlendorf 46364cb2f3 Add libtpool (thread pools)
OpenZFS provides a library called tpool which implements thread
pools for user space applications.  Porting this library means
the zpool utility no longer needs to borrow the kernel mutex and
taskq interfaces from libzpool.  This code was updated to use
the tpool library which behaves in a very similar fashion.

Porting libtpool was relatively straight forward and minimal
modifications were needed.  The core changes were:

* Fully convert the library to use pthreads.
* Updated signal handling.
* lmalloc/lfree converted to calloc/free
* Implemented portable pthread_attr_clone() function.

Finally, update the build system such that libzpool.so is no
longer linked in to zfs(8), zpool(8), etc.  All that is required
is libzfs to which the zcommon soures were added (which is the way
it always should have been).  Removing the libzpool dependency
resulted in several build issues which needed to be resolved.

* Moved zfeature support to module/zcommon/zfeature_common.c
* Moved ratelimiting to to module/zfs/zfs_ratelimit.c
* Moved get_system_hostid() to lib/libspl/gethostid.c
* Removed use of cmn_err() in zcommon source
* Removed dprintf_setup() call from zpool_main.c and zfs_main.c
* Removed highbit() and lowbit()
* Removed unnecessary library dependencies from Makefiles
* Removed fletcher-4 kstat in user space
* Added sha2 support explicitly to libzfs
* Added highbit64() and lowbit64() to zpool_util.c

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6442
2017-08-09 15:31:08 -07:00
..
libavl Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libefi Fixes for issues found with cppcheck tool 2016-07-27 13:31:22 -07:00
libicp OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R 2016-10-03 14:51:15 -07:00
libnvpair Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
libshare Fix nfs snapdir automount 2017-03-08 09:26:33 -08:00
libspl Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
libtpool Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
libunicode Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libuutil Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
libzfs Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
libzfs_core OpenZFS 7600 - zfs rollback should pass target snapshot to kernel 2017-07-04 15:29:52 -07:00
libzpool Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
Makefile.am Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00