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author | Jiang Liu <jiang.liu@huawei.com> | 2013-09-27 12:04:41 +0400 |
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committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-09-27 21:21:37 +0400 |
commit | 6db83cea1c975b9a102e17def7d2795814e1ae2b (patch) | |
tree | 8bb027ee7d2738649783800354f88de59580d9cd /arch/arm64/configs | |
parent | fc18047c732f6becba92618a397555927687efd3 (diff) | |
download | linux-6db83cea1c975b9a102e17def7d2795814e1ae2b.tar.xz |
arm64: fix possible invalid FPSIMD initialization state
If context switching happens during executing fpsimd_flush_thread(),
stale value in FPSIMD registers will be saved into current thread's
fpsimd_state by fpsimd_thread_switch(). That may cause invalid
initialization state for the new process, so disable preemption
when executing fpsimd_flush_thread().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/configs')
0 files changed, 0 insertions, 0 deletions