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Merge commit 'v2.6.30-rc6' into perfcounters/core

Browse Source 
Merge reason: this branch was on an -rc4 base, merge it up to -rc6
              to get the latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2009-05-18 07:37:44 +02:00
parent d2517a49d5 1406de8e11
commit dc3f81b129
786 changed files with 17787 additions and 9563 deletions
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90
fs/exec.c
View File

@@ -70,17 +70,18 @@ int suid_dumpable = 0;
static LIST_HEAD(formats);
static DEFINE_RWLOCK(binfmt_lock);
int register_binfmt(struct linux_binfmt * fmt)
int __register_binfmt(struct linux_binfmt * fmt, int insert)
{
if (!fmt)
return -EINVAL;
write_lock(&binfmt_lock);
list_add(&fmt->lh, &formats);
insert ? list_add(&fmt->lh, &formats) :
list_add_tail(&fmt->lh, &formats);
write_unlock(&binfmt_lock);
return 0;
}
EXPORT_SYMBOL(register_binfmt);
EXPORT_SYMBOL(__register_binfmt);
void unregister_binfmt(struct linux_binfmt * fmt)
{
@@ -105,40 +106,28 @@ static inline void put_binfmt(struct linux_binfmt * fmt)
SYSCALL_DEFINE1(uselib, const char __user *, library)
{
struct file *file;
struct nameidata nd;
char *tmp = getname(library);
int error = PTR_ERR(tmp);
if (!IS_ERR(tmp)) {
error = path_lookup_open(AT_FDCWD, tmp,
LOOKUP_FOLLOW, &nd,
FMODE_READ|FMODE_EXEC);
putname(tmp);
}
if (error)
if (IS_ERR(tmp))
goto out;
error = -EINVAL;
if (!S_ISREG(nd.path.dentry->d_inode->i_mode))
goto exit;
error = -EACCES;
if (nd.path.mnt->mnt_flags & MNT_NOEXEC)
goto exit;
error = inode_permission(nd.path.dentry->d_inode,
MAY_READ | MAY_EXEC | MAY_OPEN);
if (error)
goto exit;
error = ima_path_check(&nd.path, MAY_READ | MAY_EXEC | MAY_OPEN);
if (error)
goto exit;
file = nameidata_to_filp(&nd, O_RDONLY|O_LARGEFILE);
file = do_filp_open(AT_FDCWD, tmp,
O_LARGEFILE | O_RDONLY | FMODE_EXEC, 0,
MAY_READ | MAY_EXEC | MAY_OPEN);
putname(tmp);
error = PTR_ERR(file);
if (IS_ERR(file))
goto out;
error = -EINVAL;
if (!S_ISREG(file->f_path.dentry->d_inode->i_mode))
goto exit;
error = -EACCES;
if (file->f_path.mnt->mnt_flags & MNT_NOEXEC)
goto exit;
fsnotify_open(file->f_path.dentry);
error = -ENOEXEC;
@@ -160,13 +149,10 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
}
read_unlock(&binfmt_lock);
}
exit:
fput(file);
out:
return error;
exit:
release_open_intent(&nd);
path_put(&nd.path);
goto out;
}
#ifdef CONFIG_MMU
@@ -661,47 +647,33 @@ EXPORT_SYMBOL(setup_arg_pages);
struct file *open_exec(const char *name)
{
struct nameidata nd;
struct file *file;
int err;
err = path_lookup_open(AT_FDCWD, name, LOOKUP_FOLLOW, &nd,
FMODE_READ|FMODE_EXEC);
if (err)
file = do_filp_open(AT_FDCWD, name,
O_LARGEFILE | O_RDONLY | FMODE_EXEC, 0,
MAY_EXEC | MAY_OPEN);
if (IS_ERR(file))
goto out;
err = -EACCES;
if (!S_ISREG(nd.path.dentry->d_inode->i_mode))
goto out_path_put;
if (!S_ISREG(file->f_path.dentry->d_inode->i_mode))
goto exit;
if (nd.path.mnt->mnt_flags & MNT_NOEXEC)
goto out_path_put;
err = inode_permission(nd.path.dentry->d_inode, MAY_EXEC | MAY_OPEN);
if (err)
goto out_path_put;
err = ima_path_check(&nd.path, MAY_EXEC | MAY_OPEN);
if (err)
goto out_path_put;
file = nameidata_to_filp(&nd, O_RDONLY|O_LARGEFILE);
if (IS_ERR(file))
return file;
if (file->f_path.mnt->mnt_flags & MNT_NOEXEC)
goto exit;
fsnotify_open(file->f_path.dentry);
err = deny_write_access(file);
if (err) {
fput(file);
goto out;
}
if (err)
goto exit;
out:
return file;
out_path_put:
release_open_intent(&nd);
path_put(&nd.path);
out:
exit:
fput(file);
return ERR_PTR(err);
}
EXPORT_SYMBOL(open_exec);