X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fexec.c;h=54a0a557b6781ecf379015bbd60dc6f3fd37c176;hb=6131a2601f42cd7fdbac0e960713396fe68af59f;hp=9ff6069094d81353239e38c56f37a5da72bf1f69;hpb=7b791d445500c5674b1ef00fefc0e343ed2f85b7;p=linux-2.6-omap-h63xx.git

diff --git a/fs/exec.c b/fs/exec.c
index 9ff6069094d..54a0a557b67 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -112,7 +112,7 @@ asmlinkage long sys_uselib(const char __user * library)
 		goto out;
 
 	error = -EINVAL;
-	if (!S_ISREG(nd.dentry->d_inode->i_mode))
+	if (!S_ISREG(nd.path.dentry->d_inode->i_mode))
 		goto exit;
 
 	error = vfs_permission(&nd, MAY_READ | MAY_EXEC);
@@ -148,7 +148,7 @@ out:
   	return error;
 exit:
 	release_open_intent(&nd);
-	path_release(&nd);
+	path_put(&nd.path);
 	goto out;
 }
 
@@ -173,8 +173,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		return NULL;
 
 	if (write) {
-		struct rlimit *rlim = current->signal->rlim;
 		unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start;
+		struct rlimit *rlim;
+
+		/*
+		 * We've historically supported up to 32 pages (ARG_MAX)
+		 * of argument strings even with small stacks
+		 */
+		if (size <= ARG_MAX)
+			return page;
 
 		/*
 		 * Limit to 1/4-th the stack size for the argv+env strings.
@@ -183,6 +190,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		 *  - the program will have a reasonable amount of stack left
 		 *    to work from.
 		 */
+		rlim = current->signal->rlim;
 		if (size > rlim[RLIMIT_STACK].rlim_cur / 4) {
 			put_page(page);
 			return NULL;
@@ -652,7 +660,7 @@ struct file *open_exec(const char *name)
 	file = ERR_PTR(err);
 
 	if (!err) {
-		struct inode *inode = nd.dentry->d_inode;
+		struct inode *inode = nd.path.dentry->d_inode;
 		file = ERR_PTR(-EACCES);
 		if (S_ISREG(inode->i_mode)) {
 			int err = vfs_permission(&nd, MAY_EXEC);
@@ -672,7 +680,7 @@ out:
 			}
 		}
 		release_open_intent(&nd);
-		path_release(&nd);
+		path_put(&nd.path);
 	}
 	goto out;
 }