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OpenCloudOS-Kernel
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OpenCloudOS-Kernel/arch/x86/kernel/fpu
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Christoph Hellwig 8d3289f2fa x86/fpu: Don't use current->mm to check for a kthread 
current->mm can be non-NULL if a kthread calls use_mm(). Check for
PF_KTHREAD instead to decide when to store user mode FP state.

Fixes: 2722146eb7 ("x86/fpu: Remove fpu->initialized")
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Aubrey Li <aubrey.li@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190604175411.GA27477@lst.de
 		2019-06-13 20:57:49 +02:00
..
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
bugs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
core.c x86/fpu: Don't use current->mm to check for a kthread 2019-06-13 20:57:49 +02:00
init.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
regset.c x86/fpu: Remove fpu->initialized 2019-04-10 15:42:40 +02:00
signal.c x86/fpu: Update kernel's FPU state before using for the fsave header 2019-06-08 11:45:15 +02:00
xstate.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00