/* saa7127.h - definition for saa7126/7/8/9 inputs/outputs Copyright (C) 2006 Hans Verkuil (hverkuil@xs4all.nl) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _SAA7127_H_ #define _SAA7127_H_ /* Enumeration for the supported input types */ enum saa7127_input_type { SAA7127_INPUT_TYPE_NORMAL, SAA7127_INPUT_TYPE_TEST_IMAGE }; /* Enumeration for the supported output signal types */ enum saa7127_output_type { SAA7127_OUTPUT_TYPE_BOTH, SAA7127_OUTPUT_TYPE_COMPOSITE, SAA7127_OUTPUT_TYPE_SVIDEO, SAA7127_OUTPUT_TYPE_RGB, SAA7127_OUTPUT_TYPE_YUV_C, SAA7127_OUTPUT_TYPE_YUV_V }; #endif p-back net-next plumbingsTobias Klauser
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authorHugh Dickins <hughd@google.com>2017-01-07 15:37:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-07 17:49:33 -0800
commitb0b9b3df27d100a975b4e8818f35382b64a5e35c (patch)
tree8d900d2be3801a7dd10c86c594b37e421167392c /include/crypto/internal/kpp.h
parent87bc610730a944b49f1c53ab9f4230d85f35df0c (diff)
mm: stop leaking PageTables
4.10-rc loadtest (even on x86, and even without THPCache) fails with "fork: Cannot allocate memory" or some such; and /proc/meminfo shows PageTables growing. Commit 953c66c2b22a ("mm: THP page cache support for ppc64") that got merged in rc1 removed the freeing of an unused preallocated pagetable after do_fault_around() has called map_pages(). This is usually a good optimization, so that the followup doesn't have to reallocate one; but it's not sufficient to shift the freeing into alloc_set_pte(), since there are failure cases (most commonly VM_FAULT_RETRY) which never reach finish_fault(). Check and free it at the outer level in do_fault(), then we don't need to worry in alloc_set_pte(), and can restore that to how it was (I cannot find any reason to pte_free() under lock as it was doing). And fix a separate pagetable leak, or crash, introduced by the same change, that could only show up on some ppc64: why does do_set_pmd()'s failure case attempt to withdraw a pagetable when it never deposited one, at the same time overwriting (so leaking) the vmf->prealloc_pte? Residue of an earlier implementation, perhaps? Delete it. Fixes: 953c66c2b22a ("mm: THP page cache support for ppc64") Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Neuling <mikey@neuling.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/crypto/internal/kpp.h')