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| author | K.Prasad <prasad@linux.vnet.ibm.com> | 2009-06-01 22:15:03 +0400 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-06-03 00:46:59 +0400 |
| commit | da0cdc14f5f7e0faee6b2393fefed056cdb17146 (patch) | |
| tree | 7b37af4b77a61efc531325f3130a9c2432dabbc8 | |
| parent | 66cb5917295958652ff6ba36d83f98f2379c46b4 (diff) | |
| download | linux-da0cdc14f5f7e0faee6b2393fefed056cdb17146.tar.xz | |
hw-breakpoints: modify signal handling code to refrain from re-enabling HW Breakpoints
This patch disables re-enabling of Hardware Breakpoint registers through
the signal handling code. This is now done during from hw_breakpoint_handler().
Original-patch-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
| -rw-r--r-- | arch/x86/kernel/signal.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 14425166b8e3..f33d2e0ef095 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -800,15 +800,6 @@ static void do_signal(struct pt_regs *regs) signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { - /* - * Re-enable any watchpoints before delivering the - * signal to user space. The processor register will - * have been cleared if the watchpoint triggered - * inside the kernel. - */ - if (current->thread.debugreg7) - set_debugreg(current->thread.debugreg7, 7); - /* Whee! Actually deliver the signal. */ if (handle_signal(signr, &info, &ka, oldset, regs) == 0) { /* |