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linux/arch/um
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Paolo 'Blaisorblade' Giarrusso 605a69ac81 [PATCH] uml: remove winch sem 
Replace a semaphore (winch_handler_sem) used in atomic code with a
spinlock, and reduces as needed the amount of protected code to the bare
minimum (for instance no kmalloc calls are needed).

This fixes the last problems with spinlocking (in UP mode with DEBUG
options); the semaphore, taken inside spinlocks, caused a "spin_lock was
already locked" warning, without this patch.

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>
2005-07-07 18:23:44 -07:00
..
drivers [PATCH] uml: remove winch sem 2005-07-07 18:23:44 -07:00
include [PATCH] uml: Proper clone support for skas0 2005-07-07 18:23:44 -07:00
kernel [PATCH] uml: Proper clone support for skas0 2005-07-07 18:23:44 -07:00
os-Linux [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
scripts [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
sys-i386 [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
sys-ia64 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sys-ppc [PATCH] uml: stack dump fix 2005-05-28 16:46:13 -07:00
sys-x86_64 [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
util [PATCH] uml: cross-build support : mk_task and mk_constants 2005-05-05 16:36:35 -07:00
config.release Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
defconfig [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
Kconfig [PATCH] uml: restore hppfs support 2005-07-07 18:23:44 -07:00
Kconfig_char [PATCH] uml: make the emulated iomem driver work on 2.6 2005-06-08 16:21:11 -07:00
Kconfig_i386 [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
Kconfig_net Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig_scsi Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig_x86_64 [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
Kconfig.debug [PATCH] uml: split CONFIG_FRAME_POINTER from DEBUG_INFO 2005-05-28 16:46:13 -07:00
Makefile [PATCH] uml: fix linkage of tt mode against NPTL 2005-06-21 19:07:32 -07:00
Makefile-i386 [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00
Makefile-ia64 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile-os-Linux Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile-ppc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile-skas Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile-tt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile-x86_64 [PATCH] uml: skas0 - separate kernel address space on stock hosts 2005-07-07 18:23:44 -07:00