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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-06-11 09:01:34 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-06-11 09:01:34 +0200 |
| commit | c598d5eb9fb331ba17bc9ad67ae9a2231ca5aca5 (patch) | |
| tree | a5b6f4655cde4f19b6b157aa455723c0329bd719 /lib/test_vmalloc.c | |
| parent | 29a9b3a504c0d18bcc7f0547371409e9dcbc045e (diff) | |
| parent | 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to forward to v6.16-rc1
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'lib/test_vmalloc.c')
| -rw-r--r-- | lib/test_vmalloc.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c index f585949ff696..1b0b59549aaf 100644 --- a/lib/test_vmalloc.c +++ b/lib/test_vmalloc.c @@ -13,9 +13,9 @@ #include <linux/moduleparam.h> #include <linux/completion.h> #include <linux/delay.h> -#include <linux/rwsem.h> #include <linux/mm.h> #include <linux/rcupdate.h> +#include <linux/srcu.h> #include <linux/slab.h> #define __param(type, name, init, msg) \ @@ -58,10 +58,9 @@ __param(int, run_test_mask, INT_MAX, ); /* - * Read write semaphore for synchronization of setup - * phase that is done in main thread and workers. + * This is for synchronization of setup phase. */ -static DECLARE_RWSEM(prepare_for_test_rwsem); +DEFINE_STATIC_SRCU(prepare_for_test_srcu); /* * Completion tracking for worker threads. @@ -458,7 +457,7 @@ static int test_func(void *private) /* * Block until initialization is done. */ - down_read(&prepare_for_test_rwsem); + synchronize_srcu(&prepare_for_test_srcu); t->start = get_cycles(); for (i = 0; i < ARRAY_SIZE(test_case_array); i++) { @@ -487,8 +486,6 @@ static int test_func(void *private) t->data[index].time = delta; } t->stop = get_cycles(); - - up_read(&prepare_for_test_rwsem); test_report_one_done(); /* @@ -526,7 +523,7 @@ init_test_configuration(void) static void do_concurrent_test(void) { - int i, ret; + int i, ret, idx; /* * Set some basic configurations plus sanity check. @@ -538,7 +535,7 @@ static void do_concurrent_test(void) /* * Put on hold all workers. */ - down_write(&prepare_for_test_rwsem); + idx = srcu_read_lock(&prepare_for_test_srcu); for (i = 0; i < nr_threads; i++) { struct test_driver *t = &tdriver[i]; @@ -555,7 +552,7 @@ static void do_concurrent_test(void) /* * Now let the workers do their job. */ - up_write(&prepare_for_test_rwsem); + srcu_read_unlock(&prepare_for_test_srcu, idx); /* * Sleep quiet until all workers are done with 1 second @@ -594,10 +591,11 @@ static void do_concurrent_test(void) kvfree(tdriver); } -static int vmalloc_test_init(void) +static int __init vmalloc_test_init(void) { do_concurrent_test(); - return -EAGAIN; /* Fail will directly unload the module */ + /* Fail will directly unload the module */ + return IS_BUILTIN(CONFIG_TEST_VMALLOC) ? 0:-EAGAIN; } module_init(vmalloc_test_init) |