diff options
author | Jaroslav Kysela <perex@perex.cz> | 2010-02-16 11:19:18 +0100 |
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committer | Jaroslav Kysela <perex@perex.cz> | 2010-02-16 11:19:18 +0100 |
commit | ba9341dfef6b0201cd30e3904dcd0a47d3dc35e0 (patch) | |
tree | d83637979db83bb9d5a23e190148b90b60c976d2 /mm/util.c | |
parent | d39e82db73eb876c60d00f00219d767b3be30307 (diff) | |
parent | f167e1d073278fe231bbdd5d6c24fb9d091aa544 (diff) |
Merge branch 'fixes' into devel
Diffstat (limited to 'mm/util.c')
-rw-r--r-- | mm/util.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/mm/util.c b/mm/util.c index b377ce43080..7c35ad95f92 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(¤t->mm->mmap_sem); - retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return retval; -} - /* Tracepoints definitions. */ EXPORT_TRACEPOINT_SYMBOL(kmalloc); EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc); |