diff options
| author | Joonsoo Kim <js1304@gmail.com> | 2013-04-30 02:07:28 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-30 02:54:33 +0400 |
| commit | db3808c1bac64740b9d830fda92801ae65f1c851 (patch) | |
| tree | 5f209495fa8865cf7283ae928f566142bb9a9c00 /include/linux | |
| parent | ef93247325028a35e089f3012c270379a89d052c (diff) | |
| download | linux-db3808c1bac64740b9d830fda92801ae65f1c851.tar.xz | |
mm, vmalloc: move get_vmalloc_info() to vmalloc.c
Now get_vmalloc_info() is in fs/proc/mmu.c. There is no reason that this
code must be here and it's implementation needs vmlist_lock and it iterate
a vmlist which may be internal data structure for vmalloc.
It is preferable that vmlist_lock and vmlist is only used in vmalloc.c
for maintainability. So move the code to vmalloc.c
Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Dave Anderson <anderson@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/vmalloc.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 6071e911c7f4..698b1e50d3a4 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -158,4 +158,22 @@ pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms) # endif #endif +struct vmalloc_info { + unsigned long used; + unsigned long largest_chunk; +}; + +#ifdef CONFIG_MMU +#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) +extern void get_vmalloc_info(struct vmalloc_info *vmi); +#else + +#define VMALLOC_TOTAL 0UL +#define get_vmalloc_info(vmi) \ +do { \ + (vmi)->used = 0; \ + (vmi)->largest_chunk = 0; \ +} while (0) +#endif + #endif /* _LINUX_VMALLOC_H */ |