mm: remove free_area_cache

Since all architectures have been converted to use vm_unmapped_area(),
there is no remaining use for the free_area_cache.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 0 insertions, 4 deletions

diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index bce87694f7b0..89dec7f789a4 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -255,8 +255,6 @@ static int load_aout_binary(struct linux_binprm * bprm)
                 (current->mm->start_data = N_DATADDR(ex));
         current->mm->brk = ex.a_bss +
                 (current->mm->start_brk = N_BSSADDR(ex));
-        current->mm->free_area_cache = current->mm->mmap_base;
-        current->mm->cached_hole_size = 0;
 
         retval = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
         if (retval < 0) {
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index f8a0b0efda44..100edcc5e312 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -738,8 +738,6 @@ static int load_elf_binary(struct linux_binprm *bprm)
 
         /* Do this so that we can load the interpreter, if need be.  We will
            change some of these later */
-        current->mm->free_area_cache = current->mm->mmap_base;
-        current->mm->cached_hole_size = 0;
         retval = setup_arg_pages(bprm, randomize_stack_top(STACK_TOP),
                                  executable_stack);
         if (retval < 0) {