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Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

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Pull m68knommu/coldfire fix from Greg Ungerer:
 "Only a single patch, fixes brk area setup problem in nommu
  environments"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  fs/binfmt_elf_fdpic.c: fix brk area overlap with stack on NOMMU
This commit is contained in:
Linus Torvalds 2015-11-09 16:22:26 -08:00
commit e4da7e9a54
1 changed files with 1 additions and 6 deletions
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7
fs/binfmt_elf_fdpic.c
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@ -374,10 +374,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
PAGE_ALIGN(current->mm->start_brk); PAGE_ALIGN(current->mm->start_brk);
#else #else
/* create a stack and brk area big enough for everyone /* create a stack area and zero-size brk area */
* - the brk heap starts at the bottom and works up
* - the stack starts at the top and works down
*/
stack_size = (stack_size + PAGE_SIZE - 1) & PAGE_MASK; stack_size = (stack_size + PAGE_SIZE - 1) & PAGE_MASK;
if (stack_size < PAGE_SIZE * 2) if (stack_size < PAGE_SIZE * 2)
stack_size = PAGE_SIZE * 2; stack_size = PAGE_SIZE * 2;
@ -400,8 +397,6 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
current->mm->brk = current->mm->start_brk; current->mm->brk = current->mm->start_brk;
current->mm->context.end_brk = current->mm->start_brk; current->mm->context.end_brk = current->mm->start_brk;
current->mm->context.end_brk +=
(stack_size > PAGE_SIZE) ? (stack_size - PAGE_SIZE) : 0;
current->mm->start_stack = current->mm->start_brk + stack_size; current->mm->start_stack = current->mm->start_brk + stack_size;
#endif #endif