mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 02:20:59 +03:00
93ce2b4ca5
Minimal changes required to integrate the SPL sources in to the
ZFS repository build infrastructure and packaging.
Build system and packaging:
* Renamed SPL_* autoconf m4 macros to ZFS_*.
* Removed redundant SPL_* autoconf m4 macros.
* Updated the RPM spec files to remove SPL package dependency.
* The zfs package obsoletes the spl package, and the zfs-kmod
package obsoletes the spl-kmod package.
* The zfs-kmod-devel* packages were updated to add compatibility
symlinks under /usr/src/spl-x.y.z until all dependent packages
can be updated. They will be removed in a future release.
* Updated copy-builtin script for in-kernel builds.
* Updated DKMS package to include the spl.ko.
* Updated stale AUTHORS file to include all contributors.
* Updated stale COPYRIGHT and included the SPL as an exception.
* Renamed README.markdown to README.md
* Renamed OPENSOLARIS.LICENSE to LICENSE.
* Renamed DISCLAIMER to NOTICE.
Required code changes:
* Removed redundant HAVE_SPL macro.
* Removed _BOOT from nvpairs since it doesn't apply for Linux.
* Initial header cleanup (removal of empty headers, refactoring).
* Remove SPL repository clone/build from zimport.sh.
* Use of DEFINE_RATELIMIT_STATE and DEFINE_SPINLOCK removed due
to build issues when forcing C99 compilation.
* Replaced legacy ACCESS_ONCE with READ_ONCE.
* Include needed headers for `current` and `EXPORT_SYMBOL`.
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
TEST_ZIMPORT_SKIP="yes"
Closes #7556
128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#include <sys/zfs_context.h>
|
|
#include <sys/crypto/common.h>
|
|
#include <sys/crypto/api.h>
|
|
#include <sys/crypto/impl.h>
|
|
#include <sys/crypto/sched_impl.h>
|
|
|
|
/*
|
|
* All event subscribers are put on a list. kcf_notify_list_lock
|
|
* protects changes to this list.
|
|
*
|
|
* The following locking order is maintained in the code - The
|
|
* global kcf_notify_list_lock followed by the individual lock
|
|
* in a kcf_ntfy_elem structure (kn_lock).
|
|
*/
|
|
kmutex_t ntfy_list_lock;
|
|
kcondvar_t ntfy_list_cv; /* cv the service thread waits on */
|
|
static kcf_ntfy_elem_t *ntfy_list_head;
|
|
|
|
/*
|
|
* crypto_mech2id()
|
|
*
|
|
* Arguments:
|
|
* . mechname: A null-terminated string identifying the mechanism name.
|
|
*
|
|
* Description:
|
|
* Walks the mechanisms tables, looking for an entry that matches the
|
|
* mechname. Once it find it, it builds the 64-bit mech_type and returns
|
|
* it. If there are no hardware or software providers for the mechanism,
|
|
* but there is an unloaded software provider, this routine will attempt
|
|
* to load it.
|
|
*
|
|
* Context:
|
|
* Process and interruption.
|
|
*
|
|
* Returns:
|
|
* The unique mechanism identified by 'mechname', if found.
|
|
* CRYPTO_MECH_INVALID otherwise.
|
|
*/
|
|
crypto_mech_type_t
|
|
crypto_mech2id(char *mechname)
|
|
{
|
|
return (crypto_mech2id_common(mechname, B_TRUE));
|
|
}
|
|
|
|
/*
|
|
* We walk the notification list and do the callbacks.
|
|
*/
|
|
void
|
|
kcf_walk_ntfylist(uint32_t event, void *event_arg)
|
|
{
|
|
kcf_ntfy_elem_t *nep;
|
|
int nelem = 0;
|
|
|
|
mutex_enter(&ntfy_list_lock);
|
|
|
|
/*
|
|
* Count how many clients are on the notification list. We need
|
|
* this count to ensure that clients which joined the list after we
|
|
* have started this walk, are not wrongly notified.
|
|
*/
|
|
for (nep = ntfy_list_head; nep != NULL; nep = nep->kn_next)
|
|
nelem++;
|
|
|
|
for (nep = ntfy_list_head; (nep != NULL && nelem); nep = nep->kn_next) {
|
|
nelem--;
|
|
|
|
/*
|
|
* Check if this client is interested in the
|
|
* event.
|
|
*/
|
|
if (!(nep->kn_event_mask & event))
|
|
continue;
|
|
|
|
mutex_enter(&nep->kn_lock);
|
|
nep->kn_state = NTFY_RUNNING;
|
|
mutex_exit(&nep->kn_lock);
|
|
mutex_exit(&ntfy_list_lock);
|
|
|
|
/*
|
|
* We invoke the callback routine with no locks held. Another
|
|
* client could have joined the list meanwhile. This is fine
|
|
* as we maintain nelem as stated above. The NULL check in the
|
|
* for loop guards against shrinkage. Also, any callers of
|
|
* crypto_unnotify_events() at this point cv_wait till kn_state
|
|
* changes to NTFY_WAITING. Hence, nep is assured to be valid.
|
|
*/
|
|
(*nep->kn_func)(event, event_arg);
|
|
|
|
mutex_enter(&nep->kn_lock);
|
|
nep->kn_state = NTFY_WAITING;
|
|
cv_broadcast(&nep->kn_cv);
|
|
mutex_exit(&nep->kn_lock);
|
|
|
|
mutex_enter(&ntfy_list_lock);
|
|
}
|
|
|
|
mutex_exit(&ntfy_list_lock);
|
|
}
|
|
|
|
#if defined(_KERNEL)
|
|
EXPORT_SYMBOL(crypto_mech2id);
|
|
#endif
|