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debug: move all of the debug bits out of the spl

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Pull all of the internal debug infrastructure up in to the zfs
code to clean up the layering.  Remove all the dodgy usage of
SET_ERROR and DTRACE_PROBE from the spl.  Luckily it was
lightly used in the spl layer so we're not losing much.

Sponsored-by: https://despairlabs.com/sponsor/
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17861
This commit is contained in:
Brian Behlendorf 2025-10-30 17:23:27 -07:00
parent eceb5b32e9
commit 801d9b4f96
16 changed files with 71 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/os/freebsd/Makefile.am
View File

@ -44,7 +44,6 @@ noinst_HEADERS = \
%D%/spl/sys/procfs_list.h \
%D%/spl/sys/random.h \
%D%/spl/sys/rwlock.h \
%D%/spl/sys/sdt.h \
%D%/spl/sys/sid.h \
%D%/spl/sys/sig.h \
%D%/spl/sys/simd.h \
@ -63,7 +62,6 @@ noinst_HEADERS = \
%D%/spl/sys/time.h \
%D%/spl/sys/timer.h \
%D%/spl/sys/trace.h \
%D%/spl/sys/trace_zfs.h \
%D%/spl/sys/types.h \
%D%/spl/sys/types32.h \
%D%/spl/sys/uio.h \
@ -82,10 +80,12 @@ noinst_HEADERS = \
%D%/zfs/sys/arc_os.h \
%D%/zfs/sys/freebsd_crypto.h \
%D%/zfs/sys/freebsd_event.h \
%D%/zfs/sys/trace_zfs.h \
%D%/zfs/sys/vdev_os.h \
%D%/zfs/sys/zfs_bootenv_os.h \
%D%/zfs/sys/zfs_context_os.h \
%D%/zfs/sys/zfs_ctldir.h \
%D%/zfs/sys/zfs_debug_os.h \
%D%/zfs/sys/zfs_dir.h \
%D%/zfs/sys/zfs_ioctl_compat.h \
%D%/zfs/sys/zfs_vfsops_os.h \

0
include/os/freebsd/spl/sys/trace_zfs.h → include/os/freebsd/zfs/sys/trace_zfs.h
View File

9
include/os/freebsd/spl/sys/sdt.h → include/os/freebsd/zfs/sys/zfs_debug_os.h
View File

@ -27,10 +27,11 @@
* $FreeBSD$
*/
#ifndef _OPENSOLARIS_SYS_SDT_H_
#define _OPENSOLARIS_SYS_SDT_H_
#ifndef _SYS_ZFS_DEBUG_OS_H
#define _SYS_ZFS_DEBUG_OS_H
#include <sys/sdt.h>
#include_next <sys/sdt.h>
#ifdef KDTRACE_HOOKS
SDT_PROBE_DECLARE(sdt, , , set__error);
@ -44,4 +45,4 @@ SDT_PROBE_DECLARE(sdt, , , set__error);
#define SET_ERROR(err) (err)
#endif
#endif /* _OPENSOLARIS_SYS_SDT_H_ */
#endif /* _SYS_ZFS_DEBUG_OS_H */

2
include/os/linux/Makefile.am
View File

@ -41,6 +41,7 @@ kernel_sys_HEADERS = \
%D%/zfs/sys/zfs_bootenv_os.h \
%D%/zfs/sys/zfs_context_os.h \
%D%/zfs/sys/zfs_ctldir.h \
%D%/zfs/sys/zfs_debug_os.h \
%D%/zfs/sys/zfs_dir.h \
%D%/zfs/sys/zfs_vfsops_os.h \
%D%/zfs/sys/zfs_vnops_os.h \
@ -97,7 +98,6 @@ kernel_spl_sys_HEADERS = \
%D%/spl/sys/time.h \
%D%/spl/sys/timer.h \
%D%/spl/sys/trace.h \
%D%/spl/sys/trace_spl.h \
%D%/spl/sys/trace_taskq.h \
%D%/spl/sys/tsd.h \
%D%/spl/sys/types.h \

8
include/os/linux/spl/sys/sysmacros.h
View File

@ -34,11 +34,6 @@
#include <sys/signal.h>
#include <asm/page.h>
#ifndef _KERNEL
#define _KERNEL __KERNEL__
#endif
#define FALSE 0
#define TRUE 1
@ -202,9 +197,6 @@ makedev(unsigned int major, unsigned int minor)
#define P2SAMEHIGHBIT_TYPED(x, y, type) \
(((type)(x) ^ (type)(y)) < ((type)(x) & (type)(y)))
#define SET_ERROR(err) \
(__set_error(__FILE__, __func__, __LINE__, err), err)
#include <linux/sort.h>
#define qsort(base, num, size, cmp) \
sort(base, num, size, cmp, NULL)

29
include/os/linux/zfs/sys/zfs_debug_os.h Normal file
View File

@ -0,0 +1,29 @@
// SPDX-License-Identifier: CDDL-1.0
/*
* 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 https://opensource.org/licenses/CDDL-1.0.
* 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
*/
#ifndef _SYS_ZFS_DEBUG_OS_H
#define _SYS_ZFS_DEBUG_OS_H
#define SET_ERROR(err) \
(__set_error(__FILE__, __func__, __LINE__, err), err)
#endif /* _SYS_ZFS_DEBUG_OS_H */

1
include/sys/zfs_context.h
View File

@ -109,7 +109,6 @@ extern "C" {
#include <sys/sysevent/eventdefs.h>
#include <sys/sunddi.h>
#include <sys/debug.h>
#include <sys/trace_zfs.h>
#include <sys/zone.h>
#include <sys/mutex.h>

1
include/sys/zfs_debug.h
View File

@ -40,6 +40,7 @@ extern "C" {
#endif
#include <sys/nvpair.h>
#include <sys/zfs_debug_os.h>
extern int zfs_flags;
extern int zfs_recover;

1
lib/libspl/include/Makefile.am
View File

@ -69,7 +69,6 @@ libspl_sys_HEADERS = \
%D%/sys/time.h \
%D%/sys/timer.h \
%D%/sys/trace.h \
%D%/sys/trace_spl.h \
%D%/sys/tsd.h \
%D%/sys/tunables.h \
%D%/sys/types.h \

24
lib/libspl/include/sys/trace_spl.h
View File

@ -1,24 +0,0 @@
/* Here to keep the libspl build happy */
#ifndef _LIBSPL_SPL_TRACE_H
#define _LIBSPL_SPL_TRACE_H
/*
* The set-error SDT probe is extra static, in that we declare its fake
* function literally, rather than with the DTRACE_PROBE1() macro. This is
* necessary so that SET_ERROR() can evaluate to a value, which wouldn't
* be possible if it required multiple statements (to declare the function
* and then call it).
*
* SET_ERROR() uses the comma operator so that it can be used without much
* additional code. For example, "return (EINVAL);" becomes
* "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
* twice, so it should not have side effects (e.g. something like:
* "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
*/
#undef SET_ERROR
#define SET_ERROR(err) \
(__set_error(__FILE__, __func__, __LINE__, err), err)
#endif

3
lib/libzpool/include/Makefile.am
View File

@ -3,4 +3,5 @@ libzpool_sys_HEADERS = \
%D%/sys/abd_os.h \
%D%/sys/abd_impl_os.h \
%D%/sys/trace_zfs.h \
%D%/sys/zfs_context_os.h
%D%/sys/zfs_context_os.h \
%D%/sys/zfs_debug_os.h

25
lib/libzpool/include/sys/trace_zfs.h
View File

@ -1,24 +1 @@
/* Here to keep the libspl build happy */
#ifndef _LIBSPL_ZFS_TRACE_H
#define _LIBSPL_ZFS_TRACE_H
/*
* The set-error SDT probe is extra static, in that we declare its fake
* function literally, rather than with the DTRACE_PROBE1() macro. This is
* necessary so that SET_ERROR() can evaluate to a value, which wouldn't
* be possible if it required multiple statements (to declare the function
* and then call it).
*
* SET_ERROR() uses the comma operator so that it can be used without much
* additional code. For example, "return (EINVAL);" becomes
* "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
* twice, so it should not have side effects (e.g. something like:
* "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
*/
#undef SET_ERROR
#define SET_ERROR(err) \
(__set_error(__FILE__, __func__, __LINE__, err), err)
#endif
/* keep me */

29
lib/libzpool/include/sys/zfs_debug_os.h Normal file
View File

@ -0,0 +1,29 @@
// SPDX-License-Identifier: CDDL-1.0
/*
* 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 https://opensource.org/licenses/CDDL-1.0.
* 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
*/
#ifndef _SYS_ZFS_DEBUG_OS_H
#define _SYS_ZFS_DEBUG_OS_H
#define SET_ERROR(err) \
(__set_error(__FILE__, __func__, __LINE__, err), err)
#endif

2
module/os/freebsd/spl/spl_uio.c
View File

@ -238,7 +238,7 @@ zfs_uio_iov_step(struct iovec v, zfs_uio_t *uio, int *numpages)
zfs_uio_rw(uio), &uio->uio_dio.pages[uio->uio_dio.npages]);
if (res != n)
return (SET_ERROR(EFAULT));
return (EFAULT);
ASSERT3U(len, ==, res * PAGE_SIZE);
*numpages = res;

14
module/os/linux/spl/spl-taskq.c
View File

@ -32,7 +32,6 @@
#include <sys/taskq.h>
#include <sys/kmem.h>
#include <sys/tsd.h>
#include <sys/trace_spl.h>
#include <sys/time.h>
#include <sys/atomic.h>
#include <sys/kstat.h>
@ -325,7 +324,6 @@ task_expire_impl(taskq_ent_t *t)
}
t->tqent_birth = jiffies;
DTRACE_PROBE1(taskq_ent__birth, taskq_ent_t *, t);
/*
* The priority list must be maintained in strict task id order
@ -713,9 +711,7 @@ taskq_dispatch(taskq_t *tq, task_func_t func, void *arg, uint_t flags)
t->tqent_taskq = tq;
t->tqent_timer.function = NULL;
t->tqent_timer.expires = 0;
t->tqent_birth = jiffies;
DTRACE_PROBE1(taskq_ent__birth, taskq_ent_t *, t);
ASSERT(!(t->tqent_flags & TQENT_FLAG_PREALLOC));
@ -840,9 +836,7 @@ taskq_dispatch_ent(taskq_t *tq, task_func_t func, void *arg, uint_t flags,
t->tqent_func = func;
t->tqent_arg = arg;
t->tqent_taskq = tq;
t->tqent_birth = jiffies;
DTRACE_PROBE1(taskq_ent__birth, taskq_ent_t *, t);
spin_unlock(&t->tqent_lock);
@ -1054,11 +1048,6 @@ taskq_thread(void *args)
* A TQENT_FLAG_PREALLOC task may be reused or freed
* during the task function call. Store tqent_id and
* tqent_flags here.
*
* Also use an on stack taskq_ent_t for tqt_task
* assignment in this case; we want to make sure
* to duplicate all fields, so the values are
* correct when it's accessed via DTRACE_PROBE*.
*/
tqt->tqt_id = t->tqent_id;
tqt->tqt_flags = t->tqent_flags;
@ -1074,13 +1063,10 @@ taskq_thread(void *args)
spin_unlock_irqrestore(&tq->tq_lock, flags);
TQSTAT_INC(tq, threads_active);
DTRACE_PROBE1(taskq_ent__start, taskq_ent_t *, t);
/* Perform the requested task */
t->tqent_func(t->tqent_arg);
DTRACE_PROBE1(taskq_ent__finish, taskq_ent_t *, t);
TQSTAT_DEC(tq, threads_active);
if ((t->tqent_flags & TQENT_LIST_MASK) ==
TQENT_LIST_PENDING)

1
scripts/spdxcheck.pl
View File

@ -128,7 +128,6 @@ my $untagged_patterns = q(
include/os/freebsd/zfs/sys/zpl.h
include/os/linux/kernel/linux/page_compat.h
lib/libspl/include/sys/string.h
lib/libspl/include/sys/trace_spl.h
lib/libzdb/libzdb.c
lib/libzpool/include/sys/trace_zfs.h
module/lua/setjmp/setjmp.S