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-rw-r--r--lib/Kconfig.debug187
-rw-r--r--lib/Makefile3
-rw-r--r--lib/locking-selftest-rtmutex.h11
-rw-r--r--lib/locking-selftest.c133
-rw-r--r--lib/refcount.c3
-rw-r--r--lib/scatterlist.c35
-rw-r--r--lib/test_uuid.c36
-rw-r--r--lib/uuid.c33
-rw-r--r--lib/vsprintf.c4
9 files changed, 196 insertions, 249 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index e4587ebe52c7..9c5d40a50930 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1052,6 +1052,7 @@ config DEBUG_LOCK_ALLOC
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
select LOCKDEP
help
This feature will check whether any held lock (spinlock, rwlock,
@@ -1067,6 +1068,7 @@ config PROVE_LOCKING
select LOCKDEP
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
select DEBUG_LOCK_ALLOC
select TRACE_IRQFLAGS
default n
@@ -1121,6 +1123,7 @@ config LOCK_STAT
select LOCKDEP
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
select DEBUG_LOCK_ALLOC
default n
help
@@ -1301,189 +1304,7 @@ config DEBUG_CREDENTIALS
If unsure, say N.
-menu "RCU Debugging"
-
-config PROVE_RCU
- def_bool PROVE_LOCKING
-
-config PROVE_RCU_REPEATEDLY
- bool "RCU debugging: don't disable PROVE_RCU on first splat"
- depends on PROVE_RCU
- default n
- help
- By itself, PROVE_RCU will disable checking upon issuing the
- first warning (or "splat"). This feature prevents such
- disabling, allowing multiple RCU-lockdep warnings to be printed
- on a single reboot.
-
- Say Y to allow multiple RCU-lockdep warnings per boot.
-
- Say N if you are unsure.
-
-config SPARSE_RCU_POINTER
- bool "RCU debugging: sparse-based checks for pointer usage"
- default n
- help
- This feature enables the __rcu sparse annotation for
- RCU-protected pointers. This annotation will cause sparse
- to flag any non-RCU used of annotated pointers. This can be
- helpful when debugging RCU usage. Please note that this feature
- is not intended to enforce code cleanliness; it is instead merely
- a debugging aid.
-
- Say Y to make sparse flag questionable use of RCU-protected pointers
-
- Say N if you are unsure.
-
-config TORTURE_TEST
- tristate
- default n
-
-config RCU_PERF_TEST
- tristate "performance tests for RCU"
- depends on DEBUG_KERNEL
- select TORTURE_TEST
- select SRCU
- select TASKS_RCU
- default n
- help
- This option provides a kernel module that runs performance
- tests on the RCU infrastructure. The kernel module may be built
- after the fact on the running kernel to be tested, if desired.
-
- Say Y here if you want RCU performance tests to be built into
- the kernel.
- Say M if you want the RCU performance tests to build as a module.
- Say N if you are unsure.
-
-config RCU_TORTURE_TEST
- tristate "torture tests for RCU"
- depends on DEBUG_KERNEL
- select TORTURE_TEST
- select SRCU
- select TASKS_RCU
- default n
- help
- This option provides a kernel module that runs torture tests
- on the RCU infrastructure. The kernel module may be built
- after the fact on the running kernel to be tested, if desired.
-
- Say Y here if you want RCU torture tests to be built into
- the kernel.
- Say M if you want the RCU torture tests to build as a module.
- Say N if you are unsure.
-
-config RCU_TORTURE_TEST_SLOW_PREINIT
- bool "Slow down RCU grace-period pre-initialization to expose races"
- depends on RCU_TORTURE_TEST
- help
- This option delays grace-period pre-initialization (the
- propagation of CPU-hotplug changes up the rcu_node combining
- tree) for a few jiffies between initializing each pair of
- consecutive rcu_node structures. This helps to expose races
- involving grace-period pre-initialization, in other words, it
- makes your kernel less stable. It can also greatly increase
- grace-period latency, especially on systems with large numbers
- of CPUs. This is useful when torture-testing RCU, but in
- almost no other circumstance.
-
- Say Y here if you want your system to crash and hang more often.
- Say N if you want a sane system.
-
-config RCU_TORTURE_TEST_SLOW_PREINIT_DELAY
- int "How much to slow down RCU grace-period pre-initialization"
- range 0 5
- default 3
- depends on RCU_TORTURE_TEST_SLOW_PREINIT
- help
- This option specifies the number of jiffies to wait between
- each rcu_node structure pre-initialization step.
-
-config RCU_TORTURE_TEST_SLOW_INIT
- bool "Slow down RCU grace-period initialization to expose races"
- depends on RCU_TORTURE_TEST
- help
- This option delays grace-period initialization for a few
- jiffies between initializing each pair of consecutive
- rcu_node structures. This helps to expose races involving
- grace-period initialization, in other words, it makes your
- kernel less stable. It can also greatly increase grace-period
- latency, especially on systems with large numbers of CPUs.
- This is useful when torture-testing RCU, but in almost no
- other circumstance.
-
- Say Y here if you want your system to crash and hang more often.
- Say N if you want a sane system.
-
-config RCU_TORTURE_TEST_SLOW_INIT_DELAY
- int "How much to slow down RCU grace-period initialization"
- range 0 5
- default 3
- depends on RCU_TORTURE_TEST_SLOW_INIT
- help
- This option specifies the number of jiffies to wait between
- each rcu_node structure initialization.
-
-config RCU_TORTURE_TEST_SLOW_CLEANUP
- bool "Slow down RCU grace-period cleanup to expose races"
- depends on RCU_TORTURE_TEST
- help
- This option delays grace-period cleanup for a few jiffies
- between cleaning up each pair of consecutive rcu_node
- structures. This helps to expose races involving grace-period
- cleanup, in other words, it makes your kernel less stable.
- It can also greatly increase grace-period latency, especially
- on systems with large numbers of CPUs. This is useful when
- torture-testing RCU, but in almost no other circumstance.
-
- Say Y here if you want your system to crash and hang more often.
- Say N if you want a sane system.
-
-config RCU_TORTURE_TEST_SLOW_CLEANUP_DELAY
- int "How much to slow down RCU grace-period cleanup"
- range 0 5
- default 3
- depends on RCU_TORTURE_TEST_SLOW_CLEANUP
- help
- This option specifies the number of jiffies to wait between
- each rcu_node structure cleanup operation.
-
-config RCU_CPU_STALL_TIMEOUT
- int "RCU CPU stall timeout in seconds"
- depends on RCU_STALL_COMMON
- range 3 300
- default 21
- help
- If a given RCU grace period extends more than the specified
- number of seconds, a CPU stall warning is printed. If the
- RCU grace period persists, additional CPU stall warnings are
- printed at more widely spaced intervals.
-
-config RCU_TRACE
- bool "Enable tracing for RCU"
- depends on DEBUG_KERNEL
- default y if TREE_RCU
- select TRACE_CLOCK
- help
- This option provides tracing in RCU which presents stats
- in debugfs for debugging RCU implementation. It also enables
- additional tracepoints for ftrace-style event tracing.
-
- Say Y here if you want to enable RCU tracing
- Say N if you are unsure.
-
-config RCU_EQS_DEBUG
- bool "Provide debugging asserts for adding NO_HZ support to an arch"
- depends on DEBUG_KERNEL
- help
- This option provides consistency checks in RCU's handling of
- NO_HZ. These checks have proven quite helpful in detecting
- bugs in arch-specific NO_HZ code.
-
- Say N here if you need ultimate kernel/user switch latencies
- Say Y if you are unsure
-
-endmenu # "RCU Debugging"
+source "kernel/rcu/Kconfig.debug"
config DEBUG_WQ_FORCE_RR_CPU
bool "Force round-robin CPU selection for unbound work items"
diff --git a/lib/Makefile b/lib/Makefile
index 0166fbc0fa81..07fbe6a75692 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -25,9 +25,6 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
earlycpio.o seq_buf.o siphash.o \
nmi_backtrace.o nodemask.o win_minmax.o
-CFLAGS_radix-tree.o += -DCONFIG_SPARSE_RCU_POINTER
-CFLAGS_idr.o += -DCONFIG_SPARSE_RCU_POINTER
-
lib-$(CONFIG_MMU) += ioremap.o
lib-$(CONFIG_SMP) += cpumask.o
lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
diff --git a/lib/locking-selftest-rtmutex.h b/lib/locking-selftest-rtmutex.h
new file mode 100644
index 000000000000..e3cb83989d16
--- /dev/null
+++ b/lib/locking-selftest-rtmutex.h
@@ -0,0 +1,11 @@
+#undef LOCK
+#define LOCK RTL
+
+#undef UNLOCK
+#define UNLOCK RTU
+
+#undef RLOCK
+#undef WLOCK
+
+#undef INIT
+#define INIT RTI
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index f3a217ea0388..6f2b135dc5e8 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/debug_locks.h>
#include <linux/irqflags.h>
+#include <linux/rtmutex.h>
/*
* Change this to 1 if you want to see the failure printouts:
@@ -46,6 +47,7 @@ __setup("debug_locks_verbose=", setup_debug_locks_verbose);
#define LOCKTYPE_MUTEX 0x4
#define LOCKTYPE_RWSEM 0x8
#define LOCKTYPE_WW 0x10
+#define LOCKTYPE_RTMUTEX 0x20
static struct ww_acquire_ctx t, t2;
static struct ww_mutex o, o2, o3;
@@ -74,6 +76,15 @@ static DECLARE_RWSEM(rwsem_B);
static DECLARE_RWSEM(rwsem_C);
static DECLARE_RWSEM(rwsem_D);
+#ifdef CONFIG_RT_MUTEXES
+
+static DEFINE_RT_MUTEX(rtmutex_A);
+static DEFINE_RT_MUTEX(rtmutex_B);
+static DEFINE_RT_MUTEX(rtmutex_C);
+static DEFINE_RT_MUTEX(rtmutex_D);
+
+#endif
+
/*
* Locks that we initialize dynamically as well so that
* e.g. X1 and X2 becomes two instances of the same class,
@@ -108,6 +119,17 @@ static DECLARE_RWSEM(rwsem_Y2);
static DECLARE_RWSEM(rwsem_Z1);
static DECLARE_RWSEM(rwsem_Z2);
+#ifdef CONFIG_RT_MUTEXES
+
+static DEFINE_RT_MUTEX(rtmutex_X1);
+static DEFINE_RT_MUTEX(rtmutex_X2);
+static DEFINE_RT_MUTEX(rtmutex_Y1);
+static DEFINE_RT_MUTEX(rtmutex_Y2);
+static DEFINE_RT_MUTEX(rtmutex_Z1);
+static DEFINE_RT_MUTEX(rtmutex_Z2);
+
+#endif
+
/*
* non-inlined runtime initializers, to let separate locks share
* the same lock-class:
@@ -129,6 +151,17 @@ INIT_CLASS_FUNC(Z)
static void init_shared_classes(void)
{
+#ifdef CONFIG_RT_MUTEXES
+ static struct lock_class_key rt_X, rt_Y, rt_Z;
+
+ __rt_mutex_init(&rtmutex_X1, __func__, &rt_X);
+ __rt_mutex_init(&rtmutex_X2, __func__, &rt_X);
+ __rt_mutex_init(&rtmutex_Y1, __func__, &rt_Y);
+ __rt_mutex_init(&rtmutex_Y2, __func__, &rt_Y);
+ __rt_mutex_init(&rtmutex_Z1, __func__, &rt_Z);
+ __rt_mutex_init(&rtmutex_Z2, __func__, &rt_Z);
+#endif
+
init_class_X(&lock_X1, &rwlock_X1, &mutex_X1, &rwsem_X1);
init_class_X(&lock_X2, &rwlock_X2, &mutex_X2, &rwsem_X2);
@@ -193,6 +226,10 @@ static void init_shared_classes(void)
#define MU(x) mutex_unlock(&mutex_##x)
#define MI(x) mutex_init(&mutex_##x)
+#define RTL(x) rt_mutex_lock(&rtmutex_##x)
+#define RTU(x) rt_mutex_unlock(&rtmutex_##x)
+#define RTI(x) rt_mutex_init(&rtmutex_##x)
+
#define WSL(x) down_write(&rwsem_##x)
#define WSU(x) up_write(&rwsem_##x)
@@ -264,6 +301,11 @@ GENERATE_TESTCASE(AA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(AA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(AA_rtmutex);
+#endif
+
#undef E
/*
@@ -345,6 +387,11 @@ GENERATE_TESTCASE(ABBA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBA_rtmutex);
+#endif
+
#undef E
/*
@@ -373,6 +420,11 @@ GENERATE_TESTCASE(ABBCCA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBCCA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBCCA_rtmutex);
+#endif
+
#undef E
/*
@@ -401,6 +453,11 @@ GENERATE_TESTCASE(ABCABC_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCABC_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCABC_rtmutex);
+#endif
+
#undef E
/*
@@ -430,6 +487,11 @@ GENERATE_TESTCASE(ABBCCDDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBCCDDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBCCDDA_rtmutex);
+#endif
+
#undef E
/*
@@ -458,6 +520,11 @@ GENERATE_TESTCASE(ABCDBDDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCDBDDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCDBDDA_rtmutex);
+#endif
+
#undef E
/*
@@ -486,6 +553,11 @@ GENERATE_TESTCASE(ABCDBCDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCDBCDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCDBCDA_rtmutex);
+#endif
+
#undef E
/*
@@ -513,33 +585,10 @@ GENERATE_TESTCASE(double_unlock_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(double_unlock_rsem)
-#undef E
-
-/*
- * Bad unlock ordering:
- */
-#define E() \
- \
- LOCK(A); \
- LOCK(B); \
- UNLOCK(A); /* fail */ \
- UNLOCK(B);
-
-/*
- * 6 testcases:
- */
-#include "locking-selftest-spin.h"
-GENERATE_TESTCASE(bad_unlock_order_spin)
-#include "locking-selftest-wlock.h"
-GENERATE_TESTCASE(bad_unlock_order_wlock)
-#include "locking-selftest-rlock.h"
-GENERATE_TESTCASE(bad_unlock_order_rlock)
-#include "locking-selftest-mutex.h"
-GENERATE_TESTCASE(bad_unlock_order_mutex)
-#include "locking-selftest-wsem.h"
-GENERATE_TESTCASE(bad_unlock_order_wsem)
-#include "locking-selftest-rsem.h"
-GENERATE_TESTCASE(bad_unlock_order_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(double_unlock_rtmutex);
+#endif
#undef E
@@ -567,6 +616,11 @@ GENERATE_TESTCASE(init_held_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(init_held_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(init_held_rtmutex);
+#endif
+
#undef E
/*
@@ -916,6 +970,9 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
# define I_MUTEX(x) lockdep_reset_lock(&mutex_##x.dep_map)
# define I_RWSEM(x) lockdep_reset_lock(&rwsem_##x.dep_map)
# define I_WW(x) lockdep_reset_lock(&x.dep_map)
+#ifdef CONFIG_RT_MUTEXES
+# define I_RTMUTEX(x) lockdep_reset_lock(&rtmutex_##x.dep_map)
+#endif
#else
# define I_SPINLOCK(x)
# define I_RWLOCK(x)
@@ -924,12 +981,23 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
# define I_WW(x)
#endif
+#ifndef I_RTMUTEX
+# define I_RTMUTEX(x)
+#endif
+
+#ifdef CONFIG_RT_MUTEXES
+#define I2_RTMUTEX(x) rt_mutex_init(&rtmutex_##x)
+#else
+#define I2_RTMUTEX(x)
+#endif
+
#define I1(x) \
do { \
I_SPINLOCK(x); \
I_RWLOCK(x); \
I_MUTEX(x); \
I_RWSEM(x); \
+ I_RTMUTEX(x); \
} while (0)
#define I2(x) \
@@ -938,6 +1006,7 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
rwlock_init(&rwlock_##x); \
mutex_init(&mutex_##x); \
init_rwsem(&rwsem_##x); \
+ I2_RTMUTEX(x); \
} while (0)
static void reset_locks(void)
@@ -1013,6 +1082,12 @@ static void dotest(void (*testcase_fn)(void), int expected, int lockclass_mask)
reset_locks();
}
+#ifdef CONFIG_RT_MUTEXES
+#define dotest_rt(fn, e, m) dotest((fn), (e), (m))
+#else
+#define dotest_rt(fn, e, m)
+#endif
+
static inline void print_testname(const char *testname)
{
printk("%33s:", testname);
@@ -1050,6 +1125,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \
dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \
dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, FAILURE, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
#define DO_TESTCASE_6_SUCCESS(desc, name) \
@@ -1060,6 +1136,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, SUCCESS, LOCKTYPE_MUTEX); \
dotest(name##_wsem, SUCCESS, LOCKTYPE_RWSEM); \
dotest(name##_rsem, SUCCESS, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, SUCCESS, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
/*
@@ -1073,6 +1150,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \
dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \
dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, FAILURE, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
#define DO_TESTCASE_2I(desc, name, nr) \
@@ -1825,7 +1903,6 @@ void locking_selftest(void)
DO_TESTCASE_6R("A-B-C-D-B-C-D-A deadlock", ABCDBCDA);
DO_TESTCASE_6("double unlock", double_unlock);
DO_TESTCASE_6("initialize held", init_held);
- DO_TESTCASE_6_SUCCESS("bad unlock order", bad_unlock_order);
printk(" --------------------------------------------------------------------------\n");
print_testname("recursive read-lock");
diff --git a/lib/refcount.c b/lib/refcount.c
index 9f906783987e..5d0582a9480c 100644
--- a/lib/refcount.c
+++ b/lib/refcount.c
@@ -37,6 +37,8 @@
#include <linux/refcount.h>
#include <linux/bug.h>
+#ifdef CONFIG_REFCOUNT_FULL
+
/**
* refcount_add_not_zero - add a value to a refcount unless it is 0
* @i: the value to add to the refcount
@@ -225,6 +227,7 @@ void refcount_dec(refcount_t *r)
WARN_ONCE(refcount_dec_and_test(r), "refcount_t: decrement hit 0; leaking memory.\n");
}
EXPORT_SYMBOL(refcount_dec);
+#endif /* CONFIG_REFCOUNT_FULL */
/**
* refcount_dec_if_one - decrement a refcount if it is 1
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index c6cf82242d65..be7b4dd6b68d 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -751,3 +751,38 @@ size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,
return sg_copy_buffer(sgl, nents, buf, buflen, skip, true);
}
EXPORT_SYMBOL(sg_pcopy_to_buffer);
+
+/**
+ * sg_zero_buffer - Zero-out a part of a SG list
+ * @sgl: The SG list
+ * @nents: Number of SG entries
+ * @buflen: The number of bytes to zero out
+ * @skip: Number of bytes to skip before zeroing
+ *
+ * Returns the number of bytes zeroed.
+ **/
+size_t sg_zero_buffer(struct scatterlist *sgl, unsigned int nents,
+ size_t buflen, off_t skip)
+{
+ unsigned int offset = 0;
+ struct sg_mapping_iter miter;
+ unsigned int sg_flags = SG_MITER_ATOMIC | SG_MITER_TO_SG;
+
+ sg_miter_start(&miter, sgl, nents, sg_flags);
+
+ if (!sg_miter_skip(&miter, skip))
+ return false;
+
+ while (offset < buflen && sg_miter_next(&miter)) {
+ unsigned int len;
+
+ len = min(miter.length, buflen - offset);
+ memset(miter.addr, 0, len);
+
+ offset += len;
+ }
+
+ sg_miter_stop(&miter);
+ return offset;
+}
+EXPORT_SYMBOL(sg_zero_buffer);
diff --git a/lib/test_uuid.c b/lib/test_uuid.c
index 547d3127a3cf..478c049630b5 100644
--- a/lib/test_uuid.c
+++ b/lib/test_uuid.c
@@ -11,25 +11,25 @@
struct test_uuid_data {
const char *uuid;
- uuid_le le;
- uuid_be be;
+ guid_t le;
+ uuid_t be;
};
static const struct test_uuid_data test_uuid_test_data[] = {
{
.uuid = "c33f4995-3701-450e-9fbf-206a2e98e576",
- .le = UUID_LE(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
- .be = UUID_BE(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
+ .le = GUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
+ .be = UUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
},
{
.uuid = "64b4371c-77c1-48f9-8221-29f054fc023b",
- .le = UUID_LE(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
- .be = UUID_BE(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
+ .le = GUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
+ .be = UUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
},
{
.uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84",
- .le = UUID_LE(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
- .be = UUID_BE(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
+ .le = GUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
+ .be = UUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
},
};
@@ -61,28 +61,28 @@ static void __init test_uuid_failed(const char *prefix, bool wrong, bool be,
static void __init test_uuid_test(const struct test_uuid_data *data)
{
- uuid_le le;
- uuid_be be;
+ guid_t le;
+ uuid_t be;
char buf[48];
/* LE */
total_tests++;
- if (uuid_le_to_bin(data->uuid, &le))
+ if (guid_parse(data->uuid, &le))
test_uuid_failed("conversion", false, false, data->uuid, NULL);
total_tests++;
- if (uuid_le_cmp(data->le, le)) {
+ if (!guid_equal(&data->le, &le)) {
sprintf(buf, "%pUl", &le);
test_uuid_failed("cmp", false, false, data->uuid, buf);
}
/* BE */
total_tests++;
- if (uuid_be_to_bin(data->uuid, &be))
+ if (uuid_parse(data->uuid, &be))
test_uuid_failed("conversion", false, true, data->uuid, NULL);
total_tests++;
- if (uuid_be_cmp(data->be, be)) {
+ if (uuid_equal(&data->be, &be)) {
sprintf(buf, "%pUb", &be);
test_uuid_failed("cmp", false, true, data->uuid, buf);
}
@@ -90,17 +90,17 @@ static void __init test_uuid_test(const struct test_uuid_data *data)
static void __init test_uuid_wrong(const char *data)
{
- uuid_le le;
- uuid_be be;
+ guid_t le;
+ uuid_t be;
/* LE */
total_tests++;
- if (!uuid_le_to_bin(data, &le))
+ if (!guid_parse(data, &le))
test_uuid_failed("negative", true, false, data, NULL);
/* BE */
total_tests++;
- if (!uuid_be_to_bin(data, &be))
+ if (!uuid_parse(data, &be))
test_uuid_failed("negative", true, true, data, NULL);
}
diff --git a/lib/uuid.c b/lib/uuid.c
index 37687af77ff8..680b9fb9ba09 100644
--- a/lib/uuid.c
+++ b/lib/uuid.c
@@ -21,10 +21,13 @@
#include <linux/uuid.h>
#include <linux/random.h>
-const u8 uuid_le_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15};
-EXPORT_SYMBOL(uuid_le_index);
-const u8 uuid_be_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
-EXPORT_SYMBOL(uuid_be_index);
+const guid_t guid_null;
+EXPORT_SYMBOL(guid_null);
+const uuid_t uuid_null;
+EXPORT_SYMBOL(uuid_null);
+
+const u8 guid_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15};
+const u8 uuid_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
/***************************************************************
* Random UUID interface
@@ -53,21 +56,21 @@ static void __uuid_gen_common(__u8 b[16])
b[8] = (b[8] & 0x3F) | 0x80;
}
-void uuid_le_gen(uuid_le *lu)
+void guid_gen(guid_t *lu)
{
__uuid_gen_common(lu->b);
/* version 4 : random generation */
lu->b[7] = (lu->b[7] & 0x0F) | 0x40;
}
-EXPORT_SYMBOL_GPL(uuid_le_gen);
+EXPORT_SYMBOL_GPL(guid_gen);
-void uuid_be_gen(uuid_be *bu)
+void uuid_gen(uuid_t *bu)
{
__uuid_gen_common(bu->b);
/* version 4 : random generation */
bu->b[6] = (bu->b[6] & 0x0F) | 0x40;
}
-EXPORT_SYMBOL_GPL(uuid_be_gen);
+EXPORT_SYMBOL_GPL(uuid_gen);
/**
* uuid_is_valid - checks if UUID string valid
@@ -97,7 +100,7 @@ bool uuid_is_valid(const char *uuid)
}
EXPORT_SYMBOL(uuid_is_valid);
-static int __uuid_to_bin(const char *uuid, __u8 b[16], const u8 ei[16])
+static int __uuid_parse(const char *uuid, __u8 b[16], const u8 ei[16])
{
static const u8 si[16] = {0,2,4,6,9,11,14,16,19,21,24,26,28,30,32,34};
unsigned int i;
@@ -115,14 +118,14 @@ static int __uuid_to_bin(const char *uuid, __u8 b[16], const u8 ei[16])
return 0;
}
-int uuid_le_to_bin(const char *uuid, uuid_le *u)
+int guid_parse(const char *uuid, guid_t *u)
{
- return __uuid_to_bin(uuid, u->b, uuid_le_index);
+ return __uuid_parse(uuid, u->b, guid_index);
}
-EXPORT_SYMBOL(uuid_le_to_bin);
+EXPORT_SYMBOL(guid_parse);
-int uuid_be_to_bin(const char *uuid, uuid_be *u)
+int uuid_parse(const char *uuid, uuid_t *u)
{
- return __uuid_to_bin(uuid, u->b, uuid_be_index);
+ return __uuid_parse(uuid, u->b, uuid_index);
}
-EXPORT_SYMBOL(uuid_be_to_bin);
+EXPORT_SYMBOL(uuid_parse);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 2d41de3f98a1..9f37d6208e99 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1308,14 +1308,14 @@ char *uuid_string(char *buf, char *end, const u8 *addr,
char uuid[UUID_STRING_LEN + 1];
char *p = uuid;
int i;
- const u8 *index = uuid_be_index;
+ const u8 *index = uuid_index;
bool uc = false;
switch (*(++fmt)) {
case 'L':
uc = true; /* fall-through */
case 'l':
- index = uuid_le_index;
+ index = guid_index;
break;
case 'B':
uc = true;