pa-risc and ia64 have stacks that grow upwards. Don't show the guard page on upward growing vma in /proc/$$/maps Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx> --- This looks useful too ... but I can't see where the code is that made vm_start be PAGE_SIZE lower to begin with. I'd expect to have to make a matching change to make vm_end PAGE_SIZE higher for the VM_GROWSUP areas. diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 439fc1f..ef262f6 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -210,7 +210,7 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) int flags = vma->vm_flags; unsigned long ino = 0; unsigned long long pgoff = 0; - unsigned long start; + unsigned long start, end; dev_t dev = 0; int len; @@ -223,12 +223,15 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) /* We don't show the stack guard page in /proc/maps */ start = vma->vm_start; + end = vma->vm_end; if (vma->vm_flags & VM_GROWSDOWN) start += PAGE_SIZE; + if (vma->vm_flags & VM_GROWSUP) + end -= PAGE_SIZE; seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n", start, - vma->vm_end, + end, flags & VM_READ ? 'r' : '-', flags & VM_WRITE ? 'w' : '-', flags & VM_EXEC ? 'x' : '-', -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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