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2011-11-02um: merge arch/um/sys-{i386,x86_64}/sharedAl Viro13-676/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: get rid of unused macros in ptrace_user.hAl Viro1-39/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: get rid of sysdep/sc.hAl Viro2-46/+7
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>
2011-11-02um: Get rid of UPT_SET/UPT_REG macrosAl Viro1-75/+0
the only users are arch getreg()/putreg() and it's easier to handle it there instead of playing with macros from hell Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: take vm-flags.h to sys-*/asmAl Viro1-15/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: get rid of sysdep/checksum.hAl Viro1-144/+0
Move those to sys-.../asm/checksum.h, kill include/asm/checksum.h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: kill a couple of useless includes of kern_constants.hAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: -include user.h for USER_OBJ, trim includesAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: take user_constants.h to include/generatedAl Viro3-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02um: kill skas_ptregs.hAl Viro1-2/+0
It's a plain include of user_constants.h and all (2) users are including user_constants.h directly prior to that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2011-09-14um: Save FPU registers between task switchesIngo van Lil1-0/+1
Some time ago Jeff prepared 42daba316557 ("uml: stop saving process FP state") for UML to stop saving the process FP state between task switches. The assumption was that since with SKAS0 every guest process runs inside a host process context the host OS will take care of keeping the proper FP state. Unfortunately this is not true for multi-threaded applications, where all guest threads share a single host process context yet all may use the FPU on their own. Although I haven't verified it I suspect things to be even worse in SKAS3 mode where all guest processes run inside a single host process. The patch reintroduces the saving and restoring of the FP context between task switches. [richard@nod.at: Ingo posted this patch in 2009, sadly it was never applied and got lost. Now in 2011 the problem was reported by Gunnar.] Signed-off-by: Ingo van Lil <inguin@gmx.de> Signed-off-by: Richard Weinberger <richard@nod.at> Reported-by: <gunnarlindroth@hotmail.com> Tested-by: <gunnarlindroth@hotmail.com> Cc: Stanislav Meduna <stano@meduna.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-25um: clean up vm-flags.hRichard Weinberger1-22/+4
There is no need to define VM_{STACK,DATA}_DEFAULT_FLAGS as variable. It's also useless to test for TIF_IA32 as 64bit UML has no IA32 emulation. Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-22x86, um: get rid of excessive includes of uml-config.hAl Viro2-2/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of header symlinksAl Viro16-0/+1011
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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