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authorDavid S. Miller <davem@davemloft.net>2010-12-26 22:37:05 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-26 22:37:05 -0800
commit17f7f4d9fcce8f1b75b5f735569309dee7665968 (patch)
tree14d7e49ca0053a0fcab3c33b5023bf3f90c5c08a /fs/compat.c
parent041110a439e21cd40709ead4ffbfa8034619ad77 (diff)
parentd7c1255a3a21e98bdc64df8ccf005a174d7e6289 (diff)
downloadop-kernel-dev-17f7f4d9fcce8f1b75b5f735569309dee7665968.zip
op-kernel-dev-17f7f4d9fcce8f1b75b5f735569309dee7665968.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: net/ipv4/fib_frontend.c
Diffstat (limited to 'fs/compat.c')
-rw-r--r--fs/compat.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/fs/compat.c b/fs/compat.c
index c580c32..eb1740a 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) {
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