LoongArch: Check TIF_LOAD_WATCH to enable user space watchpoint

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[ Upstream commit 3892b11eac ]

Currently, there are some places to set CSR.PRMD.PWE, the first one is
in hw_breakpoint_thread_switch() to enable user space singlestep via
checking TIF_SINGLESTEP, the second one is in hw_breakpoint_control() to
enable user space watchpoint. For the latter case, it should also check
TIF_LOAD_WATCH to make the logic correct and clear.

Fixes: c8e57ab099 ("LoongArch: Trigger user-space watchpoints correctly")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Tiezhu Yang 2024-07-20 22:41:07 +08:00 • committed by Greg Kroah-Hartman

parent 8fe6e8cb5f

commit cc3368064c

2 changed files with 4 additions and 1 deletions

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2

arch/loongarch/kernel/hw_breakpoint.c

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3

arch/loongarch/kernel/ptrace.c

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