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author | Alexander van Heukelum <heukelum@mailshack.com> | 2008-07-02 01:31:34 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-09 08:17:59 +0200 |
commit | a7bbb0ce1d1f956c8491b925c74767adf654f373 (patch) | |
tree | 709d561fcc50ae55c79b573826d3143bc4e40f05 /arch/x86/kernel/traps_64.c | |
parent | e423f49fc8ccd761618748d7139638d8ddc1d16f (diff) | |
download | kernel_samsung_crespo-a7bbb0ce1d1f956c8491b925c74767adf654f373.zip kernel_samsung_crespo-a7bbb0ce1d1f956c8491b925c74767adf654f373.tar.gz kernel_samsung_crespo-a7bbb0ce1d1f956c8491b925c74767adf654f373.tar.bz2 |
x86: traps_xx: modify do_trap
if (cond) block -> if (!cond) goto end_of_block
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/traps_64.c')
-rw-r--r-- | arch/x86/kernel/traps_64.c | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c index 019a06f..1c2d533 100644 --- a/arch/x86/kernel/traps_64.c +++ b/arch/x86/kernel/traps_64.c @@ -630,38 +630,38 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, { struct task_struct *tsk = current; - if (user_mode(regs)) { - /* - * We want error_code and trap_no set for userspace - * faults and kernelspace faults which result in - * die(), but not kernelspace faults which are fixed - * up. die() gives the process no chance to handle - * the signal and notice the kernel fault information, - * so that won't result in polluting the information - * about previously queued, but not yet delivered, - * faults. See also do_general_protection below. - */ - tsk->thread.error_code = error_code; - tsk->thread.trap_no = trapnr; - - if (show_unhandled_signals && unhandled_signal(tsk, signr) && - printk_ratelimit()) { - printk(KERN_INFO - "%s[%d] trap %s ip:%lx sp:%lx error:%lx", - tsk->comm, tsk->pid, str, - regs->ip, regs->sp, error_code); - print_vma_addr(" in ", regs->ip); - printk("\n"); - } + if (!user_mode(regs)) + goto kernel_trap; - if (info) - force_sig_info(signr, info, tsk); - else - force_sig(signr, tsk); - return; + /* + * We want error_code and trap_no set for userspace faults and + * kernelspace faults which result in die(), but not + * kernelspace faults which are fixed up. die() gives the + * process no chance to handle the signal and notice the + * kernel fault information, so that won't result in polluting + * the information about previously queued, but not yet + * delivered, faults. See also do_general_protection below. + */ + tsk->thread.error_code = error_code; + tsk->thread.trap_no = trapnr; + + if (show_unhandled_signals && unhandled_signal(tsk, signr) && + printk_ratelimit()) { + printk(KERN_INFO + "%s[%d] trap %s ip:%lx sp:%lx error:%lx", + tsk->comm, tsk->pid, str, + regs->ip, regs->sp, error_code); + print_vma_addr(" in ", regs->ip); + printk("\n"); } + if (info) + force_sig_info(signr, info, tsk); + else + force_sig(signr, tsk); + return; +kernel_trap: if (!fixup_exception(regs)) { tsk->thread.error_code = error_code; tsk->thread.trap_no = trapnr; |