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author | Mark Rutland <mark.rutland@arm.com> | 2019-02-11 13:20:35 +0000 |
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committer | Ingo Molnar <mingo@kernel.org> | 2019-02-13 08:07:31 +0100 |
commit | 0cf264b3133dce56a60ca8b4335d1f76fe26870a (patch) | |
tree | 9afbe4db4847974c5f357fde4fd76f92aaa37b01 /arch/mips/mm/tlbex.c | |
parent | b14e77f89aca1c2763f65dc274b5837a185ab13f (diff) | |
download | linux-0cf264b3133dce56a60ca8b4335d1f76fe26870a.tar.bz2 |
locking/atomics: Check atomic headers with sha1sum
We currently check the atomic headers at build-time to ensure they
haven't been modified directly, and these checks require regenerating
the headers in full. As this takes a few seconds, even when
parallelized, this is too slow to run for every kernel build.
Instead, we can generate a hash of each header as we generate them,
which we can cheaply check at build time (~0.16s for all headers).
This patch does so, updating headers with their hashes using the new
gen-atomics.sh script. As some users apparently build the kernel wihout
coreutils, lacking sha1sum, the checks are skipped in this case.
Presumably, most developers have a working coreutils installation.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: anders.roxell@linaro.org
Cc: linux-kernel@vger.kernel.rg
Cc: naresh.kamboju@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/mm/tlbex.c')
0 files changed, 0 insertions, 0 deletions