]> granicus.if.org Git - zfs/commit
Add libtpool (thread pools)
authorBrian Behlendorf <behlendorf1@llnl.gov>
Wed, 9 Aug 2017 22:31:08 +0000 (15:31 -0700)
committerGitHub <noreply@github.com>
Wed, 9 Aug 2017 22:31:08 +0000 (15:31 -0700)
commit46364cb2f35545a7fc915df9593b719a94c43a83
tree0fb11534892c2aaaa1c1bda3c10914e718827eb0
parent5146d802b4e371cab1d6db79bea482c056be7bf2
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
46 files changed:
cmd/mount_zfs/Makefile.am
cmd/raidz_test/Makefile.am
cmd/zdb/Makefile.am
cmd/zed/Makefile.am
cmd/zfs/Makefile.am
cmd/zfs/zfs_main.c
cmd/zhack/Makefile.am
cmd/zinject/Makefile.am
cmd/zpool/Makefile.am
cmd/zpool/zpool_iter.c
cmd/zpool/zpool_main.c
cmd/zpool/zpool_util.c
cmd/zpool/zpool_util.h
cmd/zstreamdump/Makefile.am
cmd/ztest/Makefile.am
configure.ac
include/Makefile.am
include/libzfs.h
include/sys/zfs_context.h
include/thread_pool.h [new file with mode: 0644]
lib/Makefile.am
lib/libnvpair/Makefile.am
lib/libspl/Makefile.am
lib/libspl/gethostid.c [new file with mode: 0644]
lib/libspl/include/sys/systeminfo.h
lib/libtpool/Makefile.am [new file with mode: 0644]
lib/libtpool/thread_pool.c [new file with mode: 0644]
lib/libtpool/thread_pool_impl.h [new file with mode: 0644]
lib/libuutil/Makefile.am
lib/libzfs/Makefile.am
lib/libzfs/libzfs_import.c
lib/libzfs/libzfs_pool.c
lib/libzfs/libzfs_status.c
lib/libzpool/Makefile.am
lib/libzpool/kernel.c
module/icp/algs/sha2/sha2.c
module/icp/os/modhash.c
module/zcommon/Makefile.in
module/zcommon/zfeature_common.c [moved from module/zfs/zfeature_common.c with 96% similarity]
module/zcommon/zfs_comutil.c
module/zcommon/zfs_deleg.c
module/zcommon/zfs_fletcher.c
module/zfs/Makefile.in
module/zfs/zfs_ratelimit.c [new file with mode: 0644]
scripts/zfs2zol-patch.sed
tests/zfs-tests/tests/functional/libzfs/Makefile.am