reduce latency in __purge_vmap_area_lazy V2

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: akpm@xxxxxxxxxxxxxxxxxxxx
Subject: reduce latency in __purge_vmap_area_lazy V2
From: Christoph Hellwig <hch@xxxxxx>
Date: Fri, 18 Nov 2016 14:03:46 +0100
Cc: aryabinin@xxxxxxxxxxxxx, joelaf@xxxxxxxxxx, jszhang@xxxxxxxxxxx, chris@xxxxxxxxxxxxxxxxxx, joaodias@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-rt-users@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx

Hi all,

this is my spin at sorting out the long lock hold times in
__purge_vmap_area_lazy.  It is based on a patch from Joel.

Changes since V1:
 - add vfree_atomic, thanks to Andrey Ryabinin.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>

Follow-Ups:
- [PATCH 10/10] mm: add preempt points into __purge_vmap_area_lazy
  - From: Christoph Hellwig
- [PATCH 09/10] mm: turn vmap_purge_lock into a mutex
  - From: Christoph Hellwig
- [PATCH 08/10] mm: mark all calls into the vmalloc subsystem as potentially sleeping
  - From: Christoph Hellwig
- [PATCH 07/10] mm: warn about vfree from atomic context
  - From: Christoph Hellwig
- [PATCH 06/10] x86/ldt: use vfree_atomic() to free ldt entries
  - From: Christoph Hellwig
- [PATCH 02/10] mm: remove free_unmap_vmap_area_addr
  - From: Christoph Hellwig
- [PATCH 05/10] kernel/fork: use vfree_atomic() to free thread stack
  - From: Christoph Hellwig
- [PATCH 04/10] mm: add vfree_atomic()
  - From: Christoph Hellwig
- [PATCH 03/10] mm: refactor __purge_vmap_area_lazy
  - From: Christoph Hellwig
- [PATCH 01/10] mm: remove free_unmap_vmap_area_noflush
  - From: Christoph Hellwig

Prev by Date: Re: [PATCH v27 1/9] memblock: add memblock_cap_memory_range()
Next by Date: [PATCH 01/10] mm: remove free_unmap_vmap_area_noflush
Previous by thread: mm: BUG in pgtable_pmd_page_dtor
Next by thread: [PATCH 01/10] mm: remove free_unmap_vmap_area_noflush
Index(es):
- Date
- Thread

[Index of Archives] [Linux ARM Kernel] [Linux ARM] [Linux Omap] [Fedora ARM] [IETF Annouce] [Bugtraq] [Linux OMAP] [Linux MIPS] [eCos] [Asterisk Internet PBX] [Linux API]