TononixOS/ubports_kernel_google_msm
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08dc2ca61e683e9119ff534dfcd0fd555401fcf7
ubports_kernel_google_msm/include/asm-parisc
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James Bottomley 08dc2ca61e [PARISC] Fix our spinlock implementation 
We actually have two separate bad bugs

1. The read_lock implementation spins with disabled interrupts.  This is
completely wrong
2. Our spin_lock_irqsave should check to see if interrupts were enabled
before the call and re-enable interrupts around the inner spin loop.

The problem is that if we spin with interrupts off, we can't receive
IPIs. This has resulted in a bug where SMP machines suddenly spit
smp_call_function timeout messages and hang.

The scenario I've caught is

CPU0 does a flush_tlb_all holding the vmlist_lock for write.
CPU1 tries a cat of /proc/meminfo which tries to acquire vmlist_lock for
     read
CPU1 is now spinning with interrupts disabled
CPU0 tries to execute a smp_call_function to flush the local tlb caches

This is now a deadlock because CPU1 is spinning with interrupts disabled
and can never receive the IPI

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-11-17 16:35:09 -05:00
..
a.out.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
asmregs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
assembly.h
[PARISC] Specify level to fix binutils level promotion bug
2005-10-21 22:56:35 -04:00
atomic.h
[PATCH] atomic: inc_not_zero
2005-11-13 18:14:16 -08:00
auxvec.h
[PATCH] auxiliary vector cleanups
2005-09-07 16:57:21 -07:00
bitops.h
[PARISC] Update bitops from parisc tree
2005-10-21 22:45:22 -04:00
bug.h
[PATCH] remove all kernel BUGs
2005-05-01 08:59:01 -07:00
bugs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
byteorder.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cache.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cacheflush.h
[PATCH] mm: parisc pte atomicity
2005-10-29 21:40:42 -07:00
checksum.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
compat_rt_sigframe.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
compat_signal.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
compat_ucontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
compat.h
[PATCH] compat: be more consistent about [ug]id_t
2005-09-07 16:57:19 -07:00
cputime.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
current.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
delay.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
div64.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
dma-mapping.h
[PATCH] gfp_t: dma-mapping (parisc)
2005-10-28 08:16:48 -07:00
dma.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
eisa_bus.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
eisa_eeprom.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
elf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
emergency-restart.h
[PATCH] Add emergency_restart()
2005-07-26 14:35:41 -07:00
errno.h
[PARISC] Add ECANCELED to errno.h
2005-10-21 22:53:43 -04:00
fcntl.h
[PATCH] Clean up struct flock64 definitions
2005-09-07 16:57:38 -07:00
fixmap.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
floppy.h
[PATCH] make some things static
2005-05-05 16:36:47 -07:00
futex.h
[PATCH] Remove unused var from asm/futex.h
2005-09-21 16:16:29 -07:00
grfioctl.h
[PARISC] Add other CRT_ID for newer cards to grfioctl.h
2005-10-21 22:54:00 -04:00
hardirq.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
hardware.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
hw_irq.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ide.h
[PATCH] remove some more check_region stuff
2005-10-30 17:37:18 -08:00
io.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ioctl.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ioctls.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
iosapic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ipcbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
irq.h
[PARISC] Add IRQ affinities
2005-11-17 16:28:37 -05:00
kmap_types.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
led.h
[PARISC] Use work queue in LED/LCD driver instead of tasklet.
2005-10-21 22:46:18 -04:00
linkage.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
local.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
machdep.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mc146818rtc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mman.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmu_context.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmzone.h
[PATCH] memory hotplug prep: kill local_mapnr
2005-10-29 21:40:44 -07:00
module.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
msgbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
namei.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
numnodes.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
page.h
[PATCH] mm: consolidate get_order
2005-09-05 00:05:39 -07:00
param.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
parisc-device.h
[PARISC] Convert parisc_device to use struct resource for hpa
2005-10-21 22:36:40 -04:00
parport.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pci.h
[PARISC] Fix compile warning in pci.h
2005-10-21 22:49:05 -04:00
pdc_chassis.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pdc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pdcpat.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
percpu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
perf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgalloc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgtable.h
[PATCH] fix remaining missing includes
2005-11-07 07:53:41 -08:00
poll.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
posix_types.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
processor.h
[PARISC] Add ability for prctl to change unaligned trap behaviour
2005-10-21 22:43:15 -04:00
psw.h
[PARISC] Make sure use of RFI conforms to PA 2.0 and 1.1 arch docs
2005-10-21 22:40:07 -04:00
ptrace.h
[PARISC] Take into account nullified insn and lock functions for profiling
2005-10-21 22:42:18 -04:00
real.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
resource.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rt_sigframe.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rtc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
runway.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
scatterlist.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sections.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
segment.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
semaphore-helper.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
semaphore.h
[PATCH] semaphore: Remove __MUTEX_INITIALIZER()
2005-10-30 17:37:27 -08:00
sembuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
serial.h
[PATCH] Serial: Split 8250 port table (part 2)
2005-06-29 18:45:19 +01:00
setup.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
shmbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
shmparam.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sigcontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
siginfo.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
signal.h
[PATCH] move SA_xxx defines to linux/signal.h
2005-05-01 08:59:02 -07:00
smp.h
[PARISC] Fix uniprocessor build by dummying smp_send_all_nop()
2005-11-17 16:27:44 -05:00
socket.h
[NET]: Introduce SO_{SND,RCV}BUFFORCE socket options
2005-08-29 15:31:35 -07:00
sockios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
spinlock_types.h
[PARISC] Update spinlocks from parisc tree
2005-10-21 22:41:25 -04:00
spinlock.h
[PARISC] Fix our spinlock implementation
2005-11-17 16:35:09 -05:00
stat.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
statfs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
string.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
superio.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
system.h
[PARISC] Update spinlocks from parisc tree
2005-10-21 22:41:25 -04:00
termbits.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
termios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
thread_info.h
[PATCH] streamline preempt_count type across archs
2005-06-23 09:45:19 -07:00
timex.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
tlb.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
tlbflush.h
[PATCH] mm: flush_tlb_range outside ptlock
2005-10-29 21:40:40 -07:00
topology.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
traps.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
types.h
[PARISC] Update bitops from parisc tree
2005-10-21 22:45:22 -04:00
uaccess.h
[PATCH] remove verify_area(): remove verify_area() from various uaccess.h headers
2005-09-07 16:57:35 -07:00
ucontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
unaligned.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
unistd.h
[PATCH] adjust parisc sys_ptrace prototype
2005-10-30 17:37:20 -08:00
unwind.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
user.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
xor.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00