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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-12-13 15:53:31 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-12-13 15:53:31 +0000 |
| commit | 474b9c86b0c65e9ca6a77d8b7bf132c4d5993b9c (patch) | |
| tree | 9ce213f7a268d13f8871b84f1d22c2b9ff55afcf /fs/compat.c | |
| parent | 49db7e7b995f5c61c5e24198f833ed01d99f5e7d (diff) | |
| parent | fdea0571ddca8e3f22448f66d72a034575abea28 (diff) | |
Merge branch 'topic/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 into for-2.6.38
Diffstat (limited to 'fs/compat.c')
| -rw-r--r-- | fs/compat.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/fs/compat.c b/fs/compat.c index c580c322fa6b..eb1740ac8c0a 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1350,6 +1350,10 @@ static int compat_count(compat_uptr_t __user *argv, int max) argv++; if (i++ >= max) return -E2BIG; + + if (fatal_signal_pending(current)) + return -ERESTARTNOHAND; + cond_resched(); } } return i; @@ -1391,6 +1395,12 @@ static int compat_copy_strings(int argc, compat_uptr_t __user *argv, while (len > 0) { int offset, bytes_to_copy; + if (fatal_signal_pending(current)) { + ret = -ERESTARTNOHAND; + goto out; + } + cond_resched(); + offset = pos % PAGE_SIZE; if (offset == 0) offset = PAGE_SIZE; @@ -1407,18 +1417,8 @@ static int compat_copy_strings(int argc, compat_uptr_t __user *argv, if (!kmapped_page || kpos != (pos & PAGE_MASK)) { struct page *page; -#ifdef CONFIG_STACK_GROWSUP - ret = expand_stack_downwards(bprm->vma, pos); - if (ret < 0) { - /* We've exceed the stack rlimit. */ - ret = -E2BIG; - goto out; - } -#endif - ret = get_user_pages(current, bprm->mm, pos, - 1, 1, 1, &page, NULL); - if (ret <= 0) { - /* We've exceed the stack rlimit. */ + page = get_arg_page(bprm, pos, 1); + if (!page) { ret = -E2BIG; goto out; } @@ -1539,8 +1539,10 @@ int compat_do_execve(char * filename, return retval; out: - if (bprm->mm) + if (bprm->mm) { + acct_arg_size(bprm, 0); mmput(bprm->mm); + } out_file: if (bprm->file) { |