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| author | Thomas Gleixner <[email protected]> | 2023-08-08 15:03:59 -0700 |
|---|---|---|
| committer | Dave Hansen <[email protected]> | 2023-08-09 11:58:26 -0700 |
| commit | 9faee3ecbfedebc6cdd0d96bfb2788ad8d62ef7e (patch) | |
| tree | 6bd59860f9b9709bcb3410ad723113a2be88bf1c /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| parent | 9a2a637af06621e69893e5d5cde3c0eba5aeba0f (diff) | |
x86/ioapic/32: Decrapify phys_id_present_map operation
The operation to set the IOAPIC ID in phys_id_present_map is as convoluted
as it can be.
1) Allocate a bitmap of 32byte size on the stack
2) Zero the bitmap and set the IOAPIC ID bit
3) Or the temporary bitmap over phys_id_present_map
The same functionality can be achieved by setting the IOAPIC ID bit
directly in the phys_id_present_map.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Dave Hansen <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Tested-by: Michael Kelley <[email protected]>
Tested-by: Sohil Mehta <[email protected]>
Tested-by: Juergen Gross <[email protected]> # Xen PV (dom0 and unpriv. guest)
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions