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Matthew Wilcox 64ac24e738 Generic semaphore implementation 
Semaphores are no longer performance-critical, so a generic C
implementation is better for maintainability, debuggability and
extensibility.  Thanks to Peter Zijlstra for fixing the lockdep
warning.  Thanks to Harvey Harrison for pointing out that the
unlikely() was unnecessary.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 10:42:34 -04:00
..
arch-v10 CRIS: Break long comment line in include/asm-cris/arch-v10/page.h 2008-02-08 11:06:37 +01:00
arch-v32 CRIS v32: Remove hwregs/timer_defs.h, it is now architecture specific. 2008-02-08 17:51:15 +01:00
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
atomic.h CRIS: Fix bugs in return value of atomic_inc_return and atomic_dec_return. 2008-02-08 11:06:33 +01:00
auxvec.h
axisflashmap.h CRIS: Merge axisflashmap.h with Axis internal changes. 2008-02-08 11:06:24 +01:00
bitops.h cris: remove unused __dummy, CONST_ADDR and ADDR from bitops.h 2008-02-05 09:44:24 -08:00
bug.h CRIS: Include arch dependent bug.h. 2008-02-08 11:06:32 +01:00
bugs.h
byteorder.h Clean up exported headers on CRIS 2006-09-21 09:33:55 +01:00
cache.h
cacheflush.h [PATCH] Optimize D-cache alias handling on fork 2006-12-13 09:27:08 -08:00
checksum.h cris build fixes: fix csum_tcpudp_magic() declaration 2007-11-14 18:45:44 -08:00
cputime.h
current.h
delay.h CRIS: Allow arch dependent delay to override common version. 2008-02-08 11:06:32 +01:00
device.h Driver core: add dev_archdata to struct device 2006-12-01 14:52:01 -08:00
div64.h
dma-mapping.h CRIS: Remove define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY 2008-02-08 11:06:24 +01:00
dma.h
elf.h Cleanup asm/{elf,page,user}.h: #ifdef __KERNEL__ is no longer needed 2008-02-07 08:42:30 -08:00
emergency-restart.h
errno.h
eshlibld.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ethernet.h cris build fixes: update eth_v10.c ethernet driver 2007-11-14 18:45:45 -08:00
etraxgpio.h CRIS: Make io_pwm_set_period members unsigned in etraxgpio.h 2008-02-08 11:08:07 +01:00
etraxi2c.h
fasttimer.h CRISv10 improve and bugfix fasttimer 2007-11-14 18:45:47 -08:00
fb.h fbdev: detect primary display device 2007-07-17 10:23:11 -07:00
fcntl.h
futex.h
hardirq.h cris build fixes: hardirq.h: include asm/irq.h 2007-11-14 18:45:45 -08:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
ide.h
io.h CRIS: Correct comment in io.h to describe reality of I/O space. 2008-02-08 11:06:32 +01:00
ioctl.h
ioctls.h etrax: enable arbitary speed setting on tty ports 2007-07-16 09:05:38 -07:00
ipcbuf.h
irq_regs.h softlockup: make asm/irq_regs.h available on every platform 2007-10-17 08:42:47 -07:00
irq.h [PATCH] genirq: cleanup: turn ARCH_HAS_IRQ_PER_CPU into CONFIG_IRQ_PER_CPU 2006-06-29 10:26:23 -07:00
Kbuild CRIS: Add missing headers to include/asm-cris Kbuild files. 2008-02-08 11:06:37 +01:00
kdebug.h move die notifier handling to common code 2007-05-08 11:15:04 -07:00
kmap_types.h
kvm.h kvm: provide kvm.h for all architecture: fixes headers_install 2008-04-02 15:28:18 -07:00
linkage.h
local.h
mman.h
mmu_context.h [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction 2007-05-02 19:27:14 +02:00
mmu.h
module.h
msgbuf.h
mutex.h
namei.h
page.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
param.h avoid overflows in kernel/time.c 2008-02-08 09:22:39 -08:00
pci.h PCI: remove pci_dac_dma_... APIs 2007-07-11 16:02:11 -07:00
percpu.h
pgalloc.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgtable.h CRIS: Correct pfn_pte to make it possible to ioremap uncached addresses. 2008-02-08 11:06:32 +01:00
poll.h Consolidate asm/poll.h 2007-05-11 08:29:34 -07:00
posix_types.h asm-*/posix_types.h: scrub __GLIBC__ 2008-02-08 09:22:34 -08:00
processor.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
ptrace.h
resource.h
rs485.h
rtc.h CRIS v10: Cleanup rtc.h 2008-02-08 11:06:29 +01:00
scatterlist.h Add CONFIG_DEBUG_SG sg validation 2007-10-22 21:20:03 +02:00
sections.h
segment.h
semaphore.h Generic semaphore implementation 2008-04-17 10:42:34 -04:00
sembuf.h
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] irq-flags: CRIS: Use the new IRQF_ constants 2006-07-02 13:58:46 -07:00
smp.h CRIS: Update cpu_possible_map and raw_smp_processor_id in smp.h header. 2008-02-08 11:06:32 +01:00
socket.h [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
sockios.h [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution 2007-04-25 22:24:04 -07:00
spinlock.h
stat.h
statfs.h
string.h
sync_serial.h CRIS v32: Add SECOND_WORD_SYNC, used in sync_serial. 2008-02-08 11:06:23 +01:00
system.h Add cmpxchg_local to cris 2008-02-07 08:42:31 -08:00
termbits.h cris build fixes: add baud rate defines 2007-11-14 18:45:45 -08:00
termios.h etrax: enable arbitary speed setting on tty ports 2007-07-16 09:05:38 -07:00
thread_info.h cris build fixes: corrected and improved NMI and IRQ handling 2007-11-14 18:45:45 -08:00
timex.h
tlb.h CRIS tlb.h should include linux/pagemap.h 2007-11-14 18:45:47 -08:00
tlbflush.h remove unused flush_tlb_pgtables 2007-10-19 11:53:34 -07:00
topology.h
types.h remove strict ansi check from __u64 in asm/types.h 2007-10-17 08:42:53 -07:00
uaccess.h cris: correct usage of __user for copy to and from user space in lib/usercopy and uaccess.h 2008-03-04 16:35:16 -08:00
ucontext.h
unaligned.h
unistd.h cris: correct syscall numbers in unistd.h for timerfd_settime and timerfd_gettime 2008-03-04 16:35:16 -08:00
user.h Sanitize the type of struct user.u_ar0 2008-02-07 08:42:30 -08:00