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authorArnd Bergmann <arnd@arndb.de>2010-09-15 01:34:56 +0200
committerMatt Turner <mattst88@gmail.com>2010-09-19 05:06:18 +0200
commit12e750d956eec8b1778679aff705f617095c46c8 (patch)
tree30cccc3a0e78b35f1a8c2197556f47f5cd62112d /arch
parentalpha: fix build breakage in asm/cacheflush.h (diff)
downloadlinux-12e750d956eec8b1778679aff705f617095c46c8.tar.xz
linux-12e750d956eec8b1778679aff705f617095c46c8.zip
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: Arnd 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: Matt Turner <mattst88@gmail.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/osf_sys.c5
-rw-r--r--arch/alpha/kernel/traps.c3
2 files changed, 0 insertions, 8 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 16bc1f5df3e2..547e8b84b2f7 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -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;
}
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index b14f015008ad..0414e021a91c 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -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 @@ got_exception:
* 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));