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Commit 2f81a184 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

m68k: Remove big kernel lock in cache flush code 



The cache flush code doesn't need a lock, so we can remove the use of the BKL.

Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Reported-by: default avatarArnd Bergmann <arnd@arndb.de>
Suggested-by: default avatarAndreas Schwab <schwab@linux-m68k.org>
parent 22e58f9d

arch/m68k/kernel/sys_m68k.c

+0 −3
Original line number Diff line number Diff line
@@ -12,7 +12,6 @@ 
#include <linux/mm.h>

#include <linux/fs.h>

#include <linux/smp.h>

#include <linux/smp_lock.h>

#include <linux/sem.h>

#include <linux/msg.h>

#include <linux/shm.h>
@@ -377,7 +376,6 @@ sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) 
	struct vm_area_struct *vma;

	int ret = -EINVAL;



	lock_kernel();

	if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL ||

	    cache & ~FLUSH_CACHE_BOTH)

		goto out;
@@ -446,7 +444,6 @@ sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) 
	    }

	}

out:

	unlock_kernel();

	return ret;

}