| From: |
| Peter Zijlstra <a.p.zijlstra@chello.nl> |
| To: |
| Andrea Arcangeli <aarcange@redhat.com>,
Avi Kivity <avi@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Rik van Riel <riel@redhat.com>, Ingo Molnar <mingo@elte.hu>,
akpm@linux-foundation.org,
Linus Torvalds <torvalds@linux-foundation.org> |
| Subject: |
| [PATCH 0/8] mm: Preemptibility -v9 |
| Date: |
| Wed, 02 Mar 2011 18:54:58 +0100 |
| Message-ID: |
| <20110302175458.726109015@chello.nl> |
| Cc: |
| linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
David Miller <davem@davemloft.net>,
Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Mel Gorman <mel@csn.ul.ie>, Nick Piggin <npiggin@kernel.dk>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Paul McKenney <paulmck@linux.vnet.ibm.com>,
Yanmin Zhang <yanmin_zhang@linux.intel.com> |
| Archive‑link: | |
Article |
This series depends on the previous two series:
- mm: Simplify anon_vma lifetime rules (merged by akpm)
- mm: mmu_gather rework
These patches make part of the mm a lot more preemptible. It converts
i_mmap_lock and anon_vma->lock to mutexes which together with the mmu_gather
rework makes mmu_gather preemptible as well.
Making i_mmap_lock a mutex also enables a clean-up of the truncate code.
This also allows for preemptible mmu_notifiers, something that XPMEM I think
wants.
Furthermore, it removes the new and universially detested unmap_mutex.
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