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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-26 09:21:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-26 09:21:46 -0800 |
| commit | ea3d5226f52ef30f52aa0a04f47f5919c7facacf (patch) | |
| tree | 090a48a6f6b2934d32a641ec6e61b3dc59a48514 /arch/i386/kernel/apic.c | |
| parent | 9654640d0af8f2de40ff3807d3695109d3463f54 (diff) | |
| download | blackbird-op-linux-ea3d5226f52ef30f52aa0a04f47f5919c7facacf.tar.gz blackbird-op-linux-ea3d5226f52ef30f52aa0a04f47f5919c7facacf.zip | |
Revert "[PATCH] i386: add idle notifier"
This reverts commit 2ff2d3d74705d34ab71b21f54634fcf50d57bdd5.
Uwe Bugla reports that he cannot mount a floppy drive any more, and Jiri
Slaby bisected it down to this commit.
Benjamin LaHaise also points out that this is a big hot-path, and that
interrupt delivery while idle is very common and should not go through
all these expensive gyrations.
Fix up conflicts in arch/i386/kernel/apic.c and arch/i386/kernel/irq.c
due to other unrelated irq changes.
Cc: Stephane Eranian <eranian@hpl.hp.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Uwe Bugla <uwe.bugla@gmx.de>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386/kernel/apic.c')
| -rw-r--r-- | arch/i386/kernel/apic.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index 9655c233e6f1..7a2c9cbdb511 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c @@ -38,7 +38,6 @@ #include <asm/hpet.h> #include <asm/i8253.h> #include <asm/nmi.h> -#include <asm/idle.h> #include <mach_apic.h> #include <mach_apicdef.h> @@ -561,7 +560,6 @@ void fastcall smp_apic_timer_interrupt(struct pt_regs *regs) * Besides, if we don't timer interrupts ignore the global * interrupt lock, which is the WrongThing (tm) to do. */ - exit_idle(); irq_enter(); local_apic_timer_interrupt(); irq_exit(); @@ -1221,7 +1219,6 @@ void smp_spurious_interrupt(struct pt_regs *regs) { unsigned long v; - exit_idle(); irq_enter(); /* * Check if this really is a spurious interrupt and ACK it @@ -1245,7 +1242,6 @@ void smp_error_interrupt(struct pt_regs *regs) { unsigned long v, v1; - exit_idle(); irq_enter(); /* First tickle the hardware, only then report what went on. -- REW */ v = apic_read(APIC_ESR); |
