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authorJeff Dike <jdike@addtoit.com>2007-10-16 01:26:50 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:05 -0700
commit42fda66387daa53538ae13a2c858396aaf037158 (patch)
tree77955a91a958fde7be47cb0ff23ac9e1248217db /arch/um/kernel/irq.c
parenta1ff5878d2628bbe1e42821c024c96f48318f683 (diff)
uml: throw out CONFIG_MODE_TT
This patchset throws out tt mode, which has been non-functional for a while. This is done in phases, interspersed with code cleanups on the affected files. The removal is done as follows: remove all code, config options, and files which depend on CONFIG_MODE_TT get rid of the CHOOSE_MODE macro, which decided whether to call tt-mode or skas-mode code, and replace invocations with their skas portions replace all now-trivial procedures with their skas equivalents There are now a bunch of now-redundant pieces of data structures, including mode-specific pieces of the thread structure, pt_regs, and mm_context. These are all replaced with their skas-specific contents. As part of the ongoing style compliance project, I made a style pass over all files that were changed. There are three such patches, one for each phase, covering the files affected by that phase but no later ones. I noticed that we weren't freeing the LDT state associated with a process when it exited, so that's fixed in one of the later patches. The last patch is a tidying patch which I've had for a while, but which caused inexplicable crashes under tt mode. Since that is no longer a problem, this can now go in. This patch: Start getting rid of tt mode support. This patch throws out CONFIG_MODE_TT and all config options, code, and files which depend on it. CONFIG_MODE_SKAS is gone and everything that depends on it is included unconditionally. The few changed lines are in re-written Kconfig help, lines which needed something skas-related removed from them, and a few more which weren't strictly deletions. 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>
Diffstat (limited to 'arch/um/kernel/irq.c')
-rw-r--r--arch/um/kernel/irq.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index cf0dd9cf8c4..ec1ed680032 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -339,30 +339,6 @@ int deactivate_all_fds(void)
return 0;
}
-#ifdef CONFIG_MODE_TT
-void forward_interrupts(int pid)
-{
- struct irq_fd *irq;
- unsigned long flags;
- int err;
-
- spin_lock_irqsave(&irq_lock, flags);
- for (irq = active_fds; irq != NULL; irq = irq->next) {
- err = os_set_owner(irq->fd, pid);
- if (err < 0) {
- /* XXX Just remove the irq rather than
- * print out an infinite stream of these
- */
- printk("Failed to forward %d to pid %d, err = %d\n",
- irq->fd, pid, -err);
- }
-
- irq->pid = pid;
- }
- spin_unlock_irqrestore(&irq_lock, flags);
-}
-#endif
-
/*
* do_IRQ handles all normal device IRQ's (the special
* SMP cross-CPU interrupts have their own specific