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Diffstat (limited to 'sysroot/usr/include/linux/seqlock.h')
-rw-r--r--sysroot/usr/include/linux/seqlock.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysroot/usr/include/linux/seqlock.h b/sysroot/usr/include/linux/seqlock.h
new file mode 100644
index 0000000..a1e05d4
--- /dev/null
+++ b/sysroot/usr/include/linux/seqlock.h
@@ -0,0 +1,42 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ *** This header was automatically generated from a Linux kernel header
+ *** of the same name, to make information necessary for userspace to
+ *** call into the kernel available to libc. It contains only constants,
+ *** structures, and macros generated from the original header, and thus,
+ *** contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __LINUX_SEQLOCK_H
+#define __LINUX_SEQLOCK_H
+
+#include <linux/spinlock.h>
+#include <linux/preempt.h>
+
+typedef struct {
+ unsigned sequence;
+ spinlock_t lock;
+} seqlock_t;
+
+#define __SEQLOCK_UNLOCKED(lockname) { 0, __SPIN_LOCK_UNLOCKED(lockname) }
+
+#define SEQLOCK_UNLOCKED __SEQLOCK_UNLOCKED(old_style_seqlock_init)
+
+#define seqlock_init(x) do { *(x) = (seqlock_t) __SEQLOCK_UNLOCKED(x); } while (0)
+
+#define DEFINE_SEQLOCK(x) seqlock_t x = __SEQLOCK_UNLOCKED(x)
+
+#define SEQCNT_ZERO { 0 }
+#define seqcount_init(x) do { *(x) = (seqcount_t) SEQCNT_ZERO; } while (0)
+
+#define write_seqlock_irqsave(lock, flags) do { local_irq_save(flags); write_seqlock(lock); } while (0)
+#define write_seqlock_irq(lock) do { local_irq_disable(); write_seqlock(lock); } while (0)
+#define write_seqlock_bh(lock) do { local_bh_disable(); write_seqlock(lock); } while (0)
+#define write_sequnlock_irqrestore(lock, flags) do { write_sequnlock(lock); local_irq_restore(flags); } while(0)
+#define write_sequnlock_irq(lock) do { write_sequnlock(lock); local_irq_enable(); } while(0)
+#define write_sequnlock_bh(lock) do { write_sequnlock(lock); local_bh_enable(); } while(0)
+#define read_seqbegin_irqsave(lock, flags) ({ local_irq_save(flags); read_seqbegin(lock); })
+#define read_seqretry_irqrestore(lock, iv, flags) ({ int ret = read_seqretry(lock, iv); local_irq_restore(flags); ret; })
+#endif