Messages in this thread | | | Date | Tue, 24 Oct 2017 15:48:10 +0100 | From | Will Deacon <> | Subject | Re: [PATCH v3 0/5] Switch arm64 over to qrwlock |
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Ingo, Peter,
Would you be willing to merge this via -tip, please? I'm happy to rebase/repost as required, but the code is in good shape now.
Will
On Thu, Oct 19, 2017 at 05:53:32PM +0100, Will Deacon wrote: > On Thu, Oct 12, 2017 at 01:20:46PM +0100, Will Deacon wrote: > > This is version three of the patches previously posted here: > > > > v1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-October/534666.html > > v2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-October/534981.html > > > > Changes since v2 include: > > > > * Drop unused cnt argument > > * Fix typo in UNLOCK Kconfig inlining options > > * Added Tested-by tags > > > > Thanks to all of those who provided review and testing feedback! > > I've not had any more feedback on this and the testing results are very > encouraging so I'd like to merge it for 4.15. However, it might make more > sense for the whole thing to go via -tip instead. > > Ingo, Peter: what do you prefer? > > Will > > > Will Deacon (5): > > kernel/locking: Use struct qrwlock instead of struct __qrwlock > > locking/atomic: Add atomic_cond_read_acquire > > kernel/locking: Use atomic_cond_read_acquire when spinning in qrwlock > > arm64: locking: Move rwlock implementation over to qrwlocks > > kernel/locking: Prevent slowpath writers getting held up by fastpath > > > > arch/arm64/Kconfig | 17 ++++ > > arch/arm64/include/asm/Kbuild | 1 + > > arch/arm64/include/asm/spinlock.h | 164 +------------------------------- > > arch/arm64/include/asm/spinlock_types.h | 6 +- > > include/asm-generic/atomic-long.h | 3 + > > include/asm-generic/qrwlock.h | 37 ++----- > > include/asm-generic/qrwlock_types.h | 15 ++- > > include/linux/atomic.h | 4 + > > kernel/locking/qrwlock.c | 86 +++-------------- > > 9 files changed, 61 insertions(+), 272 deletions(-) > > > > -- > > 2.1.4 > >
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