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authorIngo Molnar <mingo@elte.hu>2010-01-13 09:58:37 +0100
committerIngo Molnar <mingo@elte.hu>2010-01-13 10:08:50 +0100
commit61405fea92c42d072d9b8bd189689f1502a838af (patch)
tree013ea3e7ed71f4114004d5852d40b6e89e128f76 /mm/util.c
parent9c443dfdd31eddea6cbe6ee0ca469fbcc4e1dc3b (diff)
parent1703f2c321a8a531c393e137a82602e16c6061cb (diff)
Merge branch 'perf/urgent' into perf/core
Merge reason: queue up dependent patch, update to -rc4 Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c44
1 files changed, 0 insertions, 44 deletions
diff --git a/mm/util.c b/mm/util.c
index b377ce430803..7c35ad95f927 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -4,10 +4,6 @@
#include <linux/module.h>
#include <linux/err.h>
#include <linux/sched.h>
-#include <linux/hugetlb.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/file.h>
#include <asm/uaccess.h>
#define CREATE_TRACE_POINTS
@@ -272,46 +268,6 @@ int __attribute__((weak)) get_user_pages_fast(unsigned long start,
}
EXPORT_SYMBOL_GPL(get_user_pages_fast);
-SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len,
- unsigned long, prot, unsigned long, flags,
- unsigned long, fd, unsigned long, pgoff)
-{
- struct file * file = NULL;
- unsigned long retval = -EBADF;
-
- if (!(flags & MAP_ANONYMOUS)) {
- if (unlikely(flags & MAP_HUGETLB))
- return -EINVAL;
- file = fget(fd);
- if (!file)
- goto out;
- } else if (flags & MAP_HUGETLB) {
- struct user_struct *user = NULL;
- /*
- * VM_NORESERVE is used because the reservations will be
- * taken when vm_ops->mmap() is called
- * A dummy user value is used because we are not locking
- * memory so no accounting is necessary
- */
- len = ALIGN(len, huge_page_size(&default_hstate));
- file = hugetlb_file_setup(HUGETLB_ANON_FILE, len, VM_NORESERVE,
- &user, HUGETLB_ANONHUGE_INODE);
- if (IS_ERR(file))
- return PTR_ERR(file);
- }
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
- down_write(&current->mm->mmap_sem);
- retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return retval;
-}
-
/* Tracepoints definitions. */
EXPORT_TRACEPOINT_SYMBOL(kmalloc);
EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc);