linux-toradex.git/arch/um/kernel/tlb.c, branch v4.2.7 Linux kernel for Apalis and Colibri modules um: Fix hung task in fix_range_common() 2014-07-20T11:16:20+00:00 Richard Weinberger richard@nod.at 2014-07-20T11:16:20+00:00 468f65976a8d065ee1f27782337f4ee85a9151c5 If do_ops() fails we have to release current->mm->mmap_sem otherwise the failing task will never terminate. Reported-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Richard Weinberger <richard@nod.at> 
If do_ops() fails we have to release current->mm->mmap_sem
otherwise the failing task will never terminate.

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
um: Ensure that a stub page cannot get unmapped 2014-07-20T11:09:15+00:00 Richard Weinberger richard@nod.at 2014-07-20T11:09:15+00:00 284e6d39516cc7f9fbceebb259849fcb41559a7b Trinity discovered an execution path such that a task can unmap his stub page. Reported-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Richard Weinberger <richard@nod.at> 
Trinity discovered an execution path such that a task
can unmap his stub page.

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
um: get rid of pointless include "..." where include <...> will do 2012-10-09T20:28:45+00:00 Al Viro viro@ZenIV.linux.org.uk 2012-10-08T02:27:32+00:00 37185b33240870719b6b5913a46e6a441f1ae96f Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
um: Add BUG() to do_ops()'s error path 2012-05-21T19:09:33+00:00 Richard Weinberger richard@nod.at 2012-04-13T13:54:01+00:00 62179d47c2b1495bedc942b424e933a4b0f2ed51 In case we encounter a bad operation in do_ops() something is really broken and it's better to BUG(). Signed-off-by: Richard Weinberger <richard@nod.at> 
In case we encounter a bad operation in do_ops() something is really
broken and it's better to BUG().

Signed-off-by: Richard Weinberger <richard@nod.at>
um: distribute exports to where exported stuff is defined 2011-11-02T13:15:36+00:00 Al Viro viro@ftp.linux.org.uk 2011-08-18T19:14:10+00:00 73395a0002aa9573ffc8d989587b79663847f705 ksyms.c is down to the stuff defined in various USER_OBJS Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 
ksyms.c is down to the stuff defined in various USER_OBJS

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
um: kill shared/tlb.h 2011-11-02T13:15:10+00:00 Al Viro viro@ftp.linux.org.uk 2011-08-18T19:07:59+00:00 445c5786c9ce02b6816bb11fd3394a134fa6d244 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
um: make flush_tlb_kernel_range_common() static 2011-11-02T13:15:09+00:00 Al Viro viro@ftp.linux.org.uk 2011-08-18T19:07:49+00:00 c75d053b701cc098d44b729c8266a2df5ca5206e Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
uml: style fixes in arch/um/kernel 2008-02-05T17:44:30+00:00 Jeff Dike jdike@addtoit.com 2008-02-05T06:31:14+00:00 c5d4bb171cab17576779a51d23d313abcb3db102 Joe Perches noticed some printks in smp.c that needed fixing. While I was in there, I did the usual tidying in arch/um/kernel, which should be fairly style-clean at this point: copyright updates emacs formatting comments removal include tidying style fixes Cc: Joe Perches <joe@perches.com> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Joe Perches noticed some printks in smp.c that needed fixing.

While I was in there, I did the usual tidying in arch/um/kernel, which
should be fairly style-clean at this point:
	copyright updates
	emacs formatting comments removal
	include tidying
	style fixes

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
uml: customize tlb.h 2008-02-05T17:44:29+00:00 Jeff Dike jdike@addtoit.com 2008-02-05T06:31:07+00:00 0b4e273fb83bce5dd8e166a4defb16ebdd215abf Customize the hooks in tlb.h to optimize TLB flushing some more. Add start and end fields to tlb_gather_mmu, which are used to limit the address space range scanned when a region is unmapped. The interfaces which just free page tables, without actually changing mappings, don't need to cause a TLB flush. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Customize the hooks in tlb.h to optimize TLB flushing some more.

Add start and end fields to tlb_gather_mmu, which are used to limit
the address space range scanned when a region is unmapped.

The interfaces which just free page tables, without actually changing
mappings, don't need to cause a TLB flush.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
uml: 64-bit tlb fixes 2008-02-05T17:44:29+00:00 Jeff Dike jdike@addtoit.com 2008-02-05T06:31:06+00:00 909e90d3c410b684e564729145f7c20dad887757 Some 64-bit tlb fixes - moved pmd_page_vaddr to pgtable.h since it's the same for both 2-level and 3-level page tables fixed a bogus cast on pud_page_vaddr made the address checking in update_*_range more careful Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Some 64-bit tlb fixes -
	moved pmd_page_vaddr to pgtable.h since it's the same for both
2-level and 3-level page tables
	fixed a bogus cast on pud_page_vaddr
	made the address checking in update_*_range more careful

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>