diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2020-09-02 15:26:02 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-09-04 15:12:58 +0200 |
| commit | d53d9bc0cf783e93b374de3895145c7375e570ba (patch) | |
| tree | fb95a9c74cba7e6a7d93f58f80f542e941f99997 /fs/fs_types.c | |
| parent | f4956cf83ed12271bdbd5b547f3378add72bbffb (diff) | |
x86/debug: Change thread.debugreg6 to thread.virtual_dr6
Current usage of thread.debugreg6 is convoluted at best. It starts life as
a copy of the hardware DR6 value, but then various bits are cleared and
set.
Replace this with a new variable thread.virtual_dr6 that is initialized to
0 when DR6 is read and only gains bits, at the same time the actual (on
stack) dr6 value which is read from the hardware only gets bits cleared.
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20200902133201.415372940@infradead.org
Diffstat (limited to 'fs/fs_types.c')
0 files changed, 0 insertions, 0 deletions