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Support post-3.13 kthread_create() semantics.

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Provide spl_kthread_create() as a wrapper to the kernel's kthread_create()
to provide pre-3.13 semantics.  Re-try if the call is interrupted or if it
would have returned -ENOMEM.  Otherwise return NULL.

Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #339
This commit is contained in:
Tim Chase
2014-03-26 08:29:24 -05:00
committed by Brian Behlendorf
parent e19101e08f
commit 17a527cb0f
6 changed files with 38 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/spl/spl-debug.c
+2 -1
View File
@@ -38,6 +38,7 @@
#include <linux/file_compat.h>
#include <linux/swap.h>
#include <sys/sysmacros.h>
#include <sys/thread.h>
#include <spl-debug.h>
#include <spl-trace.h>
#include <spl-ctl.h>
@@ -415,7 +416,7 @@ spl_debug_dumplog(int flags)
spl_debug_dumplog_internal(&dp);
} else {
tsk = kthread_create(spl_debug_dumplog_thread,(void *)&dp,"spl_debug");
tsk = spl_kthread_create(spl_debug_dumplog_thread,(void *)&dp,"spl_debug");
if (tsk == NULL)
return -ENOMEM;
module/spl/spl-taskq.c
+1 -1
View File
@@ -839,7 +839,7 @@ taskq_create(const char *name, int nthreads, pri_t pri,
tqt->tqt_tq = tq;
tqt->tqt_id = 0;
tqt->tqt_thread = kthread_create(taskq_thread, tqt,
tqt->tqt_thread = spl_kthread_create(taskq_thread, tqt,
"%s/%d", name, i);
if (tqt->tqt_thread) {
list_add(&tqt->tqt_thread_list, &tq->tq_thread_list);
module/spl/spl-thread.c
+1 -1
View File
@@ -126,7 +126,7 @@ __thread_create(caddr_t stk, size_t stksize, thread_func_t func,
tp->tp_state = state;
tp->tp_pri = pri;
tsk = kthread_create(thread_generic_wrapper, (void *)tp,
tsk = spl_kthread_create(thread_generic_wrapper, (void *)tp,
"%s", tp->tp_name);
if (IS_ERR(tsk)) {
SERROR("Failed to create thread: %ld\n", PTR_ERR(tsk));
module/splat/splat-condvar.c
+4 -4
View File
@@ -108,7 +108,7 @@ splat_condvar_test1(struct file *file, void *arg)
ct[i].ct_cvp = &cv;
ct[i].ct_name = SPLAT_CONDVAR_TEST1_NAME;
ct[i].ct_rc = 0;
ct[i].ct_thread = kthread_create(splat_condvar_test12_thread,
ct[i].ct_thread = spl_kthread_create(splat_condvar_test12_thread,
&ct[i], "%s/%d", SPLAT_CONDVAR_TEST_NAME, i);
if (!IS_ERR(ct[i].ct_thread)) {
@@ -173,7 +173,7 @@ splat_condvar_test2(struct file *file, void *arg)
ct[i].ct_cvp = &cv;
ct[i].ct_name = SPLAT_CONDVAR_TEST2_NAME;
ct[i].ct_rc = 0;
ct[i].ct_thread = kthread_create(splat_condvar_test12_thread,
ct[i].ct_thread = spl_kthread_create(splat_condvar_test12_thread,
&ct[i], "%s/%d", SPLAT_CONDVAR_TEST_NAME, i);
if (!IS_ERR(ct[i].ct_thread)) {
@@ -254,7 +254,7 @@ splat_condvar_test3(struct file *file, void *arg)
ct[i].ct_cvp = &cv;
ct[i].ct_name = SPLAT_CONDVAR_TEST3_NAME;
ct[i].ct_rc = 0;
ct[i].ct_thread = kthread_create(splat_condvar_test34_thread,
ct[i].ct_thread = spl_kthread_create(splat_condvar_test34_thread,
&ct[i], "%s/%d", SPLAT_CONDVAR_TEST_NAME, i);
if (!IS_ERR(ct[i].ct_thread)) {
@@ -324,7 +324,7 @@ splat_condvar_test4(struct file *file, void *arg)
ct[i].ct_cvp = &cv;
ct[i].ct_name = SPLAT_CONDVAR_TEST3_NAME;
ct[i].ct_rc = 0;
ct[i].ct_thread = kthread_create(splat_condvar_test34_thread,
ct[i].ct_thread = spl_kthread_create(splat_condvar_test34_thread,
&ct[i], "%s/%d", SPLAT_CONDVAR_TEST_NAME, i);
if (!IS_ERR(ct[i].ct_thread)) {
module/splat/splat-rwlock.c
+2 -2
View File
@@ -215,10 +215,10 @@ splat_rwlock_test1(struct file *file, void *arg)
/* The first thread will be the writer */
if (i == 0)
rwt[i].rwt_thread = kthread_create(splat_rwlock_wr_thr,
rwt[i].rwt_thread = spl_kthread_create(splat_rwlock_wr_thr,
&rwt[i], "%s/%d", SPLAT_RWLOCK_TEST_NAME, i);
else
rwt[i].rwt_thread = kthread_create(splat_rwlock_rd_thr,
rwt[i].rwt_thread = spl_kthread_create(splat_rwlock_rd_thr,
&rwt[i], "%s/%d", SPLAT_RWLOCK_TEST_NAME, i);
if (!IS_ERR(rwt[i].rwt_thread)) {