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procfs: disable per-task stack usage on NOMMU

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It needs walk_page_range().

Reported-by: Michal Simek <monstr@monstr.eu>
Tested-by: Michal Simek <monstr@monstr.eu>
Cc: Stefani Seibold <stefani@seibold.net>
Cc: David Howells <dhowells@redhat.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2009-09-24 14:47:43 -07:00 committed by Linus Torvalds
parent b9b9df62e7
commit c44972f178
2 changed files with 9 additions and 2 deletions
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7
fs/proc/array.c
View file

@ -322,6 +322,8 @@ static inline void task_context_switch_counts(struct seq_file *m,
p->nivcsw); p->nivcsw);
} }
#ifdef CONFIG_MMU
struct stack_stats { struct stack_stats {
struct vm_area_struct *vma; struct vm_area_struct *vma;
unsigned long startpage; unsigned long startpage;
@ -402,6 +404,11 @@ static inline void task_show_stack_usage(struct seq_file *m,
mmput(mm); mmput(mm);
} }
} }
#else
static void task_show_stack_usage(struct seq_file *m, struct task_struct *task)
{
}
#endif /* CONFIG_MMU */
int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task) struct pid *pid, struct task_struct *task)

4
mm/Makefile
View file

@ -5,14 +5,14 @@
mmu-y := nommu.o mmu-y := nommu.o
mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \ mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \
mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \ mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \
vmalloc.o vmalloc.o pagewalk.o
obj-y := bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \ obj-y := bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \
maccess.o page_alloc.o page-writeback.o \ maccess.o page_alloc.o page-writeback.o \
readahead.o swap.o truncate.o vmscan.o shmem.o \ readahead.o swap.o truncate.o vmscan.o shmem.o \
prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \ prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \
page_isolation.o mm_init.o mmu_context.o \ page_isolation.o mm_init.o mmu_context.o \
pagewalk.o $(mmu-y) $(mmu-y)
obj-y += init-mm.o obj-y += init-mm.o
obj-$(CONFIG_BOUNCE) += bounce.o obj-$(CONFIG_BOUNCE) += bounce.o