diff options
author | Andi Kleen <ak@suse.de> | 2006-06-26 07:59:11 -0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 13:48:21 -0400 |
commit | 495ab9c045e1b0e5c82951b762257fe1c9d81564 (patch) | |
tree | f95c376015d340794f64f36fd52f8fa80a1daab7 /fs/dnotify.c | |
parent | d9005b52de7bc9b20afa93e06d3e15843bafc12f (diff) |
[PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status
During some profiling I noticed that default_idle causes a lot of
memory traffic. I think that is caused by the atomic operations
to clear/set the polling flag in thread_info. There is actually
no reason to make this atomic - only the idle thread does it
to itself, other CPUs only read it. So I moved it into ti->status.
Converted i386/x86-64/ia64 for now because that was the easiest
way to fix ACPI which also manipulates these flags in its idle
function.
Cc: Nick Piggin <npiggin@novell.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/dnotify.c')
0 files changed, 0 insertions, 0 deletions