diff options
Diffstat (limited to 'features/rt/locking-spinlock-Split-the-lock-types-header.patch')
| -rw-r--r-- | features/rt/locking-spinlock-Split-the-lock-types-header.patch | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/features/rt/locking-spinlock-Split-the-lock-types-header.patch b/features/rt/locking-spinlock-Split-the-lock-types-header.patch new file mode 100644 index 00000000..6dccd49d --- /dev/null +++ b/features/rt/locking-spinlock-Split-the-lock-types-header.patch @@ -0,0 +1,252 @@ +From e51cfeec84cee412a53528dc1069ace2ab24ae44 Mon Sep 17 00:00:00 2001 +From: Thomas Gleixner <tglx@linutronix.de> +Date: Wed, 29 Jun 2011 19:34:01 +0200 +Subject: [PATCH 068/191] locking/spinlock: Split the lock types header + +Split raw_spinlock into its own file and the remaining spinlock_t into +its own non-RT header. The non-RT header will be replaced later by sleeping +spinlocks. + +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +--- + include/linux/rwlock_types.h | 4 ++ + include/linux/spinlock_types.h | 87 +---------------------------- + include/linux/spinlock_types_nort.h | 39 +++++++++++++ + include/linux/spinlock_types_raw.h | 65 +++++++++++++++++++++ + 4 files changed, 110 insertions(+), 85 deletions(-) + create mode 100644 include/linux/spinlock_types_nort.h + create mode 100644 include/linux/spinlock_types_raw.h + +diff --git a/include/linux/rwlock_types.h b/include/linux/rwlock_types.h +index 3bd03e18061c..0ad226b5d8fd 100644 +--- a/include/linux/rwlock_types.h ++++ b/include/linux/rwlock_types.h +@@ -1,6 +1,10 @@ + #ifndef __LINUX_RWLOCK_TYPES_H + #define __LINUX_RWLOCK_TYPES_H + ++#if !defined(__LINUX_SPINLOCK_TYPES_H) ++# error "Do not include directly, include spinlock_types.h" ++#endif ++ + /* + * include/linux/rwlock_types.h - generic rwlock type definitions + * and initializers +diff --git a/include/linux/spinlock_types.h b/include/linux/spinlock_types.h +index b981caafe8bf..5c8664d57fb8 100644 +--- a/include/linux/spinlock_types.h ++++ b/include/linux/spinlock_types.h +@@ -9,92 +9,9 @@ + * Released under the General Public License (GPL). + */ + +-#if defined(CONFIG_SMP) +-# include <asm/spinlock_types.h> +-#else +-# include <linux/spinlock_types_up.h> +-#endif ++#include <linux/spinlock_types_raw.h> + +-#include <linux/lockdep_types.h> +- +-typedef struct raw_spinlock { +- arch_spinlock_t raw_lock; +-#ifdef CONFIG_DEBUG_SPINLOCK +- unsigned int magic, owner_cpu; +- void *owner; +-#endif +-#ifdef CONFIG_DEBUG_LOCK_ALLOC +- struct lockdep_map dep_map; +-#endif +-} raw_spinlock_t; +- +-#define SPINLOCK_MAGIC 0xdead4ead +- +-#define SPINLOCK_OWNER_INIT ((void *)-1L) +- +-#ifdef CONFIG_DEBUG_LOCK_ALLOC +-# define RAW_SPIN_DEP_MAP_INIT(lockname) \ +- .dep_map = { \ +- .name = #lockname, \ +- .wait_type_inner = LD_WAIT_SPIN, \ +- } +-# define SPIN_DEP_MAP_INIT(lockname) \ +- .dep_map = { \ +- .name = #lockname, \ +- .wait_type_inner = LD_WAIT_CONFIG, \ +- } +-#else +-# define RAW_SPIN_DEP_MAP_INIT(lockname) +-# define SPIN_DEP_MAP_INIT(lockname) +-#endif +- +-#ifdef CONFIG_DEBUG_SPINLOCK +-# define SPIN_DEBUG_INIT(lockname) \ +- .magic = SPINLOCK_MAGIC, \ +- .owner_cpu = -1, \ +- .owner = SPINLOCK_OWNER_INIT, +-#else +-# define SPIN_DEBUG_INIT(lockname) +-#endif +- +-#define __RAW_SPIN_LOCK_INITIALIZER(lockname) \ +- { \ +- .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \ +- SPIN_DEBUG_INIT(lockname) \ +- RAW_SPIN_DEP_MAP_INIT(lockname) } +- +-#define __RAW_SPIN_LOCK_UNLOCKED(lockname) \ +- (raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname) +- +-#define DEFINE_RAW_SPINLOCK(x) raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x) +- +-typedef struct spinlock { +- union { +- struct raw_spinlock rlock; +- +-#ifdef CONFIG_DEBUG_LOCK_ALLOC +-# define LOCK_PADSIZE (offsetof(struct raw_spinlock, dep_map)) +- struct { +- u8 __padding[LOCK_PADSIZE]; +- struct lockdep_map dep_map; +- }; +-#endif +- }; +-} spinlock_t; +- +-#define ___SPIN_LOCK_INITIALIZER(lockname) \ +- { \ +- .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \ +- SPIN_DEBUG_INIT(lockname) \ +- SPIN_DEP_MAP_INIT(lockname) } +- +-#define __SPIN_LOCK_INITIALIZER(lockname) \ +- { { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } } +- +-#define __SPIN_LOCK_UNLOCKED(lockname) \ +- (spinlock_t) __SPIN_LOCK_INITIALIZER(lockname) +- +-#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x) ++#include <linux/spinlock_types_nort.h> + + #include <linux/rwlock_types.h> + +diff --git a/include/linux/spinlock_types_nort.h b/include/linux/spinlock_types_nort.h +new file mode 100644 +index 000000000000..e4549f0dd197 +--- /dev/null ++++ b/include/linux/spinlock_types_nort.h +@@ -0,0 +1,39 @@ ++#ifndef __LINUX_SPINLOCK_TYPES_NORT_H ++#define __LINUX_SPINLOCK_TYPES_NORT_H ++ ++#ifndef __LINUX_SPINLOCK_TYPES_H ++#error "Do not include directly. Include spinlock_types.h instead" ++#endif ++ ++/* ++ * The non RT version maps spinlocks to raw_spinlocks ++ */ ++typedef struct spinlock { ++ union { ++ struct raw_spinlock rlock; ++ ++#ifdef CONFIG_DEBUG_LOCK_ALLOC ++# define LOCK_PADSIZE (offsetof(struct raw_spinlock, dep_map)) ++ struct { ++ u8 __padding[LOCK_PADSIZE]; ++ struct lockdep_map dep_map; ++ }; ++#endif ++ }; ++} spinlock_t; ++ ++#define ___SPIN_LOCK_INITIALIZER(lockname) \ ++{ \ ++ .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \ ++ SPIN_DEBUG_INIT(lockname) \ ++ SPIN_DEP_MAP_INIT(lockname) } ++ ++#define __SPIN_LOCK_INITIALIZER(lockname) \ ++ { { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } } ++ ++#define __SPIN_LOCK_UNLOCKED(lockname) \ ++ (spinlock_t) __SPIN_LOCK_INITIALIZER(lockname) ++ ++#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x) ++ ++#endif +diff --git a/include/linux/spinlock_types_raw.h b/include/linux/spinlock_types_raw.h +new file mode 100644 +index 000000000000..1d4a180e983d +--- /dev/null ++++ b/include/linux/spinlock_types_raw.h +@@ -0,0 +1,65 @@ ++#ifndef __LINUX_SPINLOCK_TYPES_RAW_H ++#define __LINUX_SPINLOCK_TYPES_RAW_H ++ ++#include <linux/types.h> ++ ++#if defined(CONFIG_SMP) ++# include <asm/spinlock_types.h> ++#else ++# include <linux/spinlock_types_up.h> ++#endif ++ ++#include <linux/lockdep_types.h> ++ ++typedef struct raw_spinlock { ++ arch_spinlock_t raw_lock; ++#ifdef CONFIG_DEBUG_SPINLOCK ++ unsigned int magic, owner_cpu; ++ void *owner; ++#endif ++#ifdef CONFIG_DEBUG_LOCK_ALLOC ++ struct lockdep_map dep_map; ++#endif ++} raw_spinlock_t; ++ ++#define SPINLOCK_MAGIC 0xdead4ead ++ ++#define SPINLOCK_OWNER_INIT ((void *)-1L) ++ ++#ifdef CONFIG_DEBUG_LOCK_ALLOC ++# define RAW_SPIN_DEP_MAP_INIT(lockname) \ ++ .dep_map = { \ ++ .name = #lockname, \ ++ .wait_type_inner = LD_WAIT_SPIN, \ ++ } ++# define SPIN_DEP_MAP_INIT(lockname) \ ++ .dep_map = { \ ++ .name = #lockname, \ ++ .wait_type_inner = LD_WAIT_CONFIG, \ ++ } ++#else ++# define RAW_SPIN_DEP_MAP_INIT(lockname) ++# define SPIN_DEP_MAP_INIT(lockname) ++#endif ++ ++#ifdef CONFIG_DEBUG_SPINLOCK ++# define SPIN_DEBUG_INIT(lockname) \ ++ .magic = SPINLOCK_MAGIC, \ ++ .owner_cpu = -1, \ ++ .owner = SPINLOCK_OWNER_INIT, ++#else ++# define SPIN_DEBUG_INIT(lockname) ++#endif ++ ++#define __RAW_SPIN_LOCK_INITIALIZER(lockname) \ ++{ \ ++ .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \ ++ SPIN_DEBUG_INIT(lockname) \ ++ RAW_SPIN_DEP_MAP_INIT(lockname) } ++ ++#define __RAW_SPIN_LOCK_UNLOCKED(lockname) \ ++ (raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname) ++ ++#define DEFINE_RAW_SPINLOCK(x) raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x) ++ ++#endif +-- +2.19.1 + |