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signal: Remove the task parameter from force_sig_fault

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As synchronous exceptions really only make sense against the current
task (otherwise how are you synchronous) remove the task parameter
from from force_sig_fault to make it explicit that is what is going
on.

The two known exceptions that deliver a synchronous exception to a
stopped ptraced task have already been changed to
force_sig_fault_to_task.

The callers have been changed with the following emacs regular expression
(with obvious variations on the architectures that take more arguments)
to avoid typos:

force_sig_fault[(]\([^,]+\)[,]\([^,]+\)[,]\([^,]+\)[,]\W+current[)]
->
force_sig_fault(\1,\2,\3)

Signed-off-by: "Eric W. Biederman" <[email protected]>
This commit is contained in:
Eric W. Biederman 2019-05-23 11:04:24 -05:00
commit 2e1661d267
67 changed files with 137 additions and 151 deletions
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2
arch/microblaze/kernel/exceptions.c
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@ -63,7 +63,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
if (kernel_mode(regs))
die("Exception in kernel mode", regs, signr);
force_sig_fault(signr, code, (void __user *)addr, current);
force_sig_fault(signr, code, (void __user *)addr);
}
asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,

2
arch/microblaze/mm/fault.c
View file

@ -289,7 +289,7 @@ out_of_memory:
do_sigbus:
up_read(&mm->mmap_sem);
if (user_mode(regs)) {
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, current);
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address);
return;
}
bad_page_fault(regs, address, SIGBUS);