diff options
Diffstat (limited to 'arch/mips/kernel/irixelf.c')
| -rw-r--r-- | arch/mips/kernel/irixelf.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c index aee1f399e15b..43c254299e4a 100644 --- a/arch/mips/kernel/irixelf.c +++ b/arch/mips/kernel/irixelf.c @@ -127,7 +127,9 @@ static void set_brk(unsigned long start, unsigned long end) end = PAGE_ALIGN(end); if (end <= start) return; + down_write(¤t->mm->mmap_sem); do_brk(start, end - start); + up_write(¤t->mm->mmap_sem); } @@ -375,7 +377,9 @@ static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex, /* Map the last of the bss segment */ if (last_bss > len) { + down_write(¤t->mm->mmap_sem); do_brk(len, (last_bss - len)); + up_write(¤t->mm->mmap_sem); } kfree(elf_phdata); @@ -562,7 +566,9 @@ void irix_map_prda_page (void) unsigned long v; struct prda *pp; + down_write(¤t->mm->mmap_sem); v = do_brk (PRDA_ADDRESS, PAGE_SIZE); + up_write(¤t->mm->mmap_sem); if (v < 0) return; @@ -852,8 +858,11 @@ static int load_irix_library(struct file *file) len = (elf_phdata->p_filesz + elf_phdata->p_vaddr+ 0xfff) & 0xfffff000; bss = elf_phdata->p_memsz + elf_phdata->p_vaddr; - if (bss > len) + if (bss > len) { + down_write(¤t->mm->mmap_sem); do_brk(len, bss-len); + up_write(¤t->mm->mmap_sem); + } kfree(elf_phdata); return 0; } |