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authorGeert Uytterhoeven <geert@linux-m68k.org>2010-09-14 21:34:58 +0200
committerGeert Uytterhoeven <geert@linux-m68k.org>2010-10-22 09:43:25 +0200
commit2f81a18446c3061b74f4770eb95adeba2a864b0f (patch)
tree2b78b147ecd9ec7fbd81719fe21e5207b04bb40f /arch/m68k
parent22e58f9de5d140116eb3a30d5e54396e3030bed2 (diff)
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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: Geert Uytterhoeven <geert@linux-m68k.org> Reported-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Andreas Schwab <schwab@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/kernel/sys_m68k.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 2f431ece7b5..3db2e7f902a 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -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;
}