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fce16bc35a
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Vineet Gupta fce16bc35a ARC: Entry Handler tweaks: Optimize away redundant IRQ_DISABLE_SAVE 
In the exception return path, for both U/K cases, intr are already
disabled (for various existing reasons). So when we drop down to
@restore_regs, we need not redo that.

There was subtle issue - when intr were NOT being disabled for
ret-to-kernel-but-no-preemption case - now fixed by moving the
IRQ_DISABLE further up in @resume_kernel_mode.

So what do we gain:

* Shaves off a few insn in return path.

* Eliminates the need for IRQ_DISABLE_SAVE assembler macro for ARCv2
  hence allows for entry code sharing.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-08-26 09:40:25 +05:30
..
alpha alpha: Use handle_percpu_irq for the timer interrupt 2013-07-19 13:54:26 -07:00
arc ARC: Entry Handler tweaks: Optimize away redundant IRQ_DISABLE_SAVE 2013-08-26 09:40:25 +05:30
arm Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2013-08-25 12:41:37 -07:00
arm64 Perf backend fixes for arm64 where the user can cause kernel panic 2013-08-21 16:36:32 -07:00
avr32 avr32: boards/atngw100/mrmt.c: fix building error 2013-08-08 14:16:22 +02:00
blackfin Merge branch 'cpuinit_phase2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2013-07-18 10:50:26 -07:00
c6x Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
cris cris: delete __cpuinit usage from all cris files 2013-07-14 19:36:54 -04:00
frv frv: delete __cpuinit usage from all frv files 2013-07-14 19:36:55 -04:00
h8300 net: rename busy poll socket op and globals 2013-07-10 17:08:27 -07:00
hexagon arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" 2013-08-13 17:57:49 -07:00
ia64 Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
m32r m32r: delete __cpuinit usage from all m32r files 2013-07-14 19:36:55 -04:00
m68k m68k: Truncate base in do_div() 2013-08-14 11:46:30 +02:00
metag metag: delete __cpuinit usage from all metag files 2013-07-14 19:36:54 -04:00
microblaze microblaze: fix clone syscall 2013-08-13 17:57:48 -07:00
mips MIPS: Handle OCTEON BBIT instructions in FPU emulator. 2013-08-20 19:17:40 +02:00
mn10300 net: rename busy poll socket op and globals 2013-07-10 17:08:27 -07:00
openrisc arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" 2013-08-13 17:57:49 -07:00
parisc parisc: Fix interrupt routing for C8000 serial ports 2013-07-31 23:42:32 +02:00
powerpc powerpc/tm: Fix context switching TAR, PPR and DSCR SPRs 2013-08-09 18:07:12 +10:00
s390 s390: Fix broken build 2013-08-16 21:16:37 -07:00
score arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" 2013-08-13 17:57:49 -07:00
sh Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
sparc sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
tile tile: delete __cpuinit usage from all tile files 2013-07-14 19:36:54 -04:00
um Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
unicore32 reboot: move arch/x86 reboot= handling to generic kernel 2013-07-09 10:33:29 -07:00
x86 x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member 2013-08-22 10:19:35 -07:00
xtensa xtensa: delete __cpuinit usage from all xtensa files 2013-07-14 19:36:56 -04:00
.gitignore
Kconfig microblaze: fix clone syscall 2013-08-13 17:57:48 -07:00