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Al Viro
b3ee571e58 um: take ldt.h to arch/x86/um/asm/mm_context.h 
it's x86-only and we have no business playing with it in asm/mmu.h; make
the latter have
	struct uml_arch_mm_context arch;
instead of
	struct uml_ldt ldt;
and let arch/<subarch>/um/asm/mm_context.h decide what'll be in there.
While we are at it, kill host_ldt.h - it's not needed in part of places
that include it (we want asm/ldt.h in those) and it can be trivially
expanded into the single remaining one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:21 +01:00
Al Viro
f67aa2ffb7 um: merge signal_{32,64}.c 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:20 +01:00
Al Viro
fbe9868693 um: no need to play with save_sp in signal frame setup anymore 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:19 +01:00
Al Viro
c7ea591c91 um: increase stack growth cushion in pagefault 
analog of [PATCH] i386: let usermode execute the "enter" instruction from
circa 2006.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:19 +01:00
Al Viro
3579a38973 um: merge HOST_... of registers common on i386 and amd64 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:18 +01:00
Al Viro
8edc4147be um: sanitize paths in sys_call_table* includes 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:18 +01:00
Al Viro
1bbd5f21f4 um: merge os-Linux/tls.c into arch/x86/um/os-Linux/tls.c 
it's i386-specific; moreover, analogs on other targets have
incompatible interface - PTRACE_GET_THREAD_AREA does exist
elsewhere, but struct user_desc does *not*

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:17 +01:00
Al Viro
c5cc32fe14 um: move asm/desc.h into arch/x86/um/asm 
its only purpose is to shadow the x86 asm/desc.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:16 +01:00
Al Viro
2014d01878 um: merge host_ldt_{32,64}.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:15 +01:00
Al Viro
09e129a603 um: merge tls_{32,64}.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:15 +01:00
Al Viro
4dc706c2f2 um: take um_mmu.h to asm/mmu.h, clean asm/mmu_context.h a bit 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:14 +01:00
Al Viro
548fd1e8db um: kill useless include of user.h 
everything in USER_OBJ gets it via -include user.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:13 +01:00
Al Viro
fced95cacf um: kill um_uaccess.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:13 +01:00
Al Viro
ece67c8697 um: take mconsole*.h to arch/um/drivers 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:12 +01:00
Al Viro
510c72a3cf um: take chan_*.h and line.h to arch/um/drivers 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:12 +01:00
Al Viro
17e052093b um: take register_winch_irq() into the caller of is_skas_winch() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:11 +01:00
Al Viro
0a9e70b1cd um: kill shared/mem_kern.h 
... nothing declared there exists

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:10 +01:00
Al Viro
445c5786c9 um: kill shared/tlb.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:10 +01:00
Al Viro
c75d053b70 um: make flush_tlb_kernel_range_common() static 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:09 +01:00
Al Viro
5ade8878e0 um: kill shared/task.h and HOST_TASK_REGS 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:08 +01:00
Al Viro
1cf5e62ab9 um: shared/syscall.h is not even included 
... and functions declared in it do not exist

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:08 +01:00
Al Viro
dbddc51bc8 um: don't include kern.h unless it's needed 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:07 +01:00
Al Viro
429172ccf0 um: trim kern.h 
most of the functions in there are not used in anything that ends up
including that header...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:07 +01:00
Al Viro
549e78db94 um: make load_initrd() static, kill shared/initrd.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:06 +01:00
Al Viro
0acdbbeb6d um: bury unused macros around ptrace.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:05 +01:00
Al Viro
5c48b108ec um: take arch/um/sys-x86 to arch/x86/um 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:05 +01:00
Al Viro
7bbe7204e9 um: merge Makefile-{i386,x86_64} 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:04 +01:00
Al Viro
a6e77d6c74 um: trim detritus from Makefile-i386 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:03 +01:00
Al Viro
9aecaa6a8a um: arch_hweight.h is needed only on uml-x86 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:03 +01:00
Al Viro
709585063f um: merge kernel_offsets_*.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:02 +01:00
Al Viro
c75361bddb um: merge skas_ptrace.h 32/64bit variants 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:01 +01:00
Al Viro
62982ad6b0 um: sysdep/barrier.h is not used for anything 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:01 +01:00
Al Viro
0de021f797 um: shared/process.h is empty now; kill it 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:15:00 +01:00
Al Viro
ab1c0cc7c9 um: finish conversion to mcontext_t 
now we don't mix host and guest signal frame layouts anymore; moreover,
we don't need host's struct sigcontext at all.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:59 +01:00
Al Viro
248b74c79e um: start switching the references to host mcontext_t to its userland type 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:59 +01:00
Al Viro
05c46db4d7 um: take userland definition of barrier() to user.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:58 +01:00
Al Viro
dd768c56da um: take system.h out of shared/sysdep 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:57 +01:00
Al Viro
00361683ce um: fill the handlers array at build time 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:57 +01:00
Al Viro
e87df986ed um: simplify set_handler() 
For one thing, we always block the same signals (IRQ ones - IO, WINCH, VTALRM),
so there's no need to pass sa_mask elements in arguments.  For another, the
flags depend only on whether it's an IRQ signal or not (we add SA_RESTART
for them).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:56 +01:00
Al Viro
d5c7e8b4ec um: don't bother blocking SIGARLM and SIGUSR1 
We used to generate those, but we hadn't done that for a long
time.  No need to bother blocking them for signal handlers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:55 +01:00
Al Viro
9b25fcbdc6 um: switch stub_segv_handler to SA_SIGINFO variant, get rid of magic crap in there 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:54 +01:00
Al Viro
adcfb9852d um: kill includes of sysdep/sigcontext.h from stuff built with kernel headers 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:54 +01:00
Al Viro
51d3474905 um: merge arch/um/os-Linux/sys-{i386,x86_64} 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:53 +01:00
Al Viro
7eb122555c um: merge hard_handler() instances, switch to use of SA_SIGINFO 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:52 +01:00
Al Viro
5d40de0f6e um: kill dead code around uaccess 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:52 +01:00
Al Viro
6582b7f774 um: merge arch/um/sys-{i386,x86_64} 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:51 +01:00
Al Viro
858ba94499 um: merge arch/um/sys-{i386,x86_64}/shared 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:50 +01:00
Al Viro
27f85f1263 um: merge arch/um/sys-{i386,x86_64}/asm 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:50 +01:00
Al Viro
3655c4d3c4 um: get rid of unused macros in ptrace_user.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:49 +01:00
Al Viro
ad694df534 um: get rid of sysdep/sc.h 
only sysdep/sigcontext.h uses it and very few definitions are
actually used.  The rest refers to symbols that don't even
exist anymore anyway.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
 2011-11-02 14:14:48 +01:00