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Commit 12e750d9 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Matt Turner
Browse files

alpha: kill big kernel lock 



All uses of the BKL on alpha are totally bogus, nothing
is really protected by this. Remove the remaining users
so we don't have to mark alpha as 'depends on BKL'.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: default avatarMatt Turner <mattst88@gmail.com>
parent b97f897d

arch/alpha/kernel/osf_sys.c

+0 −5
Original line number Diff line number Diff line
@@ -15,7 +15,6 @@ 
#include <linux/kernel.h>

#include <linux/mm.h>

#include <linux/smp.h>

#include <linux/smp_lock.h>

#include <linux/stddef.h>

#include <linux/syscalls.h>

#include <linux/unistd.h>
@@ -69,7 +68,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, 
{

	struct mm_struct *mm;



	lock_kernel();

	mm = current->mm;

	mm->end_code = bss_start + bss_len;

	mm->start_brk = bss_start + bss_len;
@@ -78,7 +76,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, 
	printk("set_program_attributes(%lx %lx %lx %lx)\n",

		text_start, text_len, bss_start, bss_len);

#endif

	unlock_kernel();

	return 0;

}
@@ -517,7 +514,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, 
	long error;

	int __user *min_buf_size_ptr;



	lock_kernel();

	switch (code) {

	case PL_SET:

		if (get_user(error, &args->set.nbytes))
@@ -547,7 +543,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, 
		error = -EOPNOTSUPP;

		break;

	};

	unlock_kernel();

	return error;

}

arch/alpha/kernel/traps.c

+0 −3
Original line number Diff line number Diff line
@@ -13,7 +13,6 @@ 
#include <linux/sched.h>

#include <linux/tty.h>

#include <linux/delay.h>

#include <linux/smp_lock.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/kallsyms.h>
@@ -623,7 +622,6 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, 
		return;

	}



	lock_kernel();

	printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",

		pc, va, opcode, reg);

	do_exit(SIGSEGV);
@@ -646,7 +644,6 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, 
	 * Yikes!  No one to forward the exception to.

	 * Since the registers are in a weird format, dump them ourselves.

 	 */

	lock_kernel();



	printk("%s(%d): unhandled unaligned exception\n",

	       current->comm, task_pid_nr(current));