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author | James Morris <jmorris@namei.org> | 2009-09-11 02:04:49 +0400 |
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committer | James Morris <jmorris@namei.org> | 2009-09-11 02:04:49 +0400 |
commit | a3c8b97396ef42edfb845788ba6f53b2a93ce980 (patch) | |
tree | 530c5bdbc534618311dab3e0af245835af56db0f /fs/binfmt_elf.c | |
parent | 74fca6a42863ffacaf7ba6f1936a9f228950f657 (diff) | |
parent | 9f0ab4a3f0fdb1ff404d150618ace2fa069bb2e1 (diff) | |
download | linux-a3c8b97396ef42edfb845788ba6f53b2a93ce980.tar.xz |
Merge branch 'next' into for-linus
Diffstat (limited to 'fs/binfmt_elf.c')
-rw-r--r-- | fs/binfmt_elf.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index b7c1603cd4bd..7c1e65d54872 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -501,22 +501,22 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, } } - /* - * Now fill out the bss section. First pad the last page up - * to the page boundary, and then perform a mmap to make sure - * that there are zero-mapped pages up to and including the - * last bss page. - */ - if (padzero(elf_bss)) { - error = -EFAULT; - goto out_close; - } + if (last_bss > elf_bss) { + /* + * Now fill out the bss section. First pad the last page up + * to the page boundary, and then perform a mmap to make sure + * that there are zero-mapped pages up to and including the + * last bss page. + */ + if (padzero(elf_bss)) { + error = -EFAULT; + goto out_close; + } - /* What we have mapped so far */ - elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1); + /* What we have mapped so far */ + elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1); - /* Map the last of the bss segment */ - if (last_bss > elf_bss) { + /* Map the last of the bss segment */ down_write(¤t->mm->mmap_sem); error = do_brk(elf_bss, last_bss - elf_bss); up_write(¤t->mm->mmap_sem); |