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author | Will Deacon <will@kernel.org> | 2019-11-21 11:58:53 +0000 |
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committer | Ingo Molnar <mingo@kernel.org> | 2019-11-25 09:14:13 +0100 |
commit | 23e6b169c9917fbd77534f8c5f378cb073f548bd (patch) | |
tree | 2e5029ea095271946a7f5cd7f7de4d47db82bbba /lib/ts_bm.c | |
parent | 3ef240eaff36b8119ac9e2ea17cbf41179c930ba (diff) | |
download | linux-23e6b169c9917fbd77534f8c5f378cb073f548bd.tar.bz2 |
locking/refcount: Define constants for saturation and max refcount values
The REFCOUNT_FULL implementation uses a different saturation point than
the x86 implementation, which means that the shared refcount code in
lib/refcount.c (e.g. refcount_dec_not_one()) needs to be aware of the
difference.
Rather than duplicate the definitions from the lkdtm driver, instead
move them into <linux/refcount.h> and update all references accordingly.
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Elena Reshetova <elena.reshetova@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191121115902.2551-2-will@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/ts_bm.c')
0 files changed, 0 insertions, 0 deletions