linux-stable-rt/arch/um
Paolo 'Blaisorblade' Giarrusso fea03cb40a [PATCH] uml: avoid fixing faults while atomic
Following i386, we should maybe refuse trying to fault in pages when we're
doing atomic operations, because to handle the fault we could need to take
already taken spinlocks.

Also, if we're doing an atomic operation (in the sense of in_atomic()) we're
surely in kernel mode and we're surely going to handle adequately the failed
fault, so it's safe to behave this way.

Currently, on UML SMP is rarely used, and we don't support PREEMPT, so this is
unlikely to create problems right now, but it might in the future.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-22 22:17:36 -07:00
..
drivers [PATCH] uml: run mconsole "sysrq" in process context 2005-09-22 22:17:36 -07:00
include [PATCH] strlcat: use for uml umid.c 2005-09-22 22:17:36 -07:00
kernel [PATCH] uml: avoid fixing faults while atomic 2005-09-22 22:17:36 -07:00
os-Linux [PATCH] uml: comment about cast build fix 2005-09-21 16:16:30 -07:00
scripts [PATCH] sparse on uml (infrastructure bits) 2005-09-09 10:31:58 -07:00
sys-i386 [PATCH] uml: fix modify_ldt - missing break in switch 2005-09-21 16:16:29 -07:00
sys-ia64
sys-ppc
sys-x86_64 [PATCH] bogus symbol used in arch/um/os-Linux/elf_aux.c 2005-09-07 17:17:33 -07:00
util
Kconfig [PATCH] uml: mark SMP on UML/x86_64 as broken 2005-09-05 00:06:22 -07:00
Kconfig.char
Kconfig.debug
Kconfig.i386 [PATCH] uml: UML/i386 cmpxchg fix 2005-09-17 11:50:01 -07:00
Kconfig.net
Kconfig.scsi
Kconfig.x86_64 [PATCH] uml: mark SMP on UML/x86_64 as broken 2005-09-05 00:06:22 -07:00
Makefile [PATCH] uml: Fix conflict between libc and ipv6 2005-09-21 16:16:30 -07:00
Makefile-i386 [PATCH] lost chunk of "uml: build cleanups" 2005-09-07 17:17:32 -07:00
Makefile-ia64
Makefile-os-Linux
Makefile-ppc
Makefile-skas
Makefile-tt
Makefile-x86_64 [PATCH] sparse on uml (infrastructure bits) 2005-09-09 10:31:58 -07:00
config.release
defconfig