#include <linux/rcupdate.h>
#include <linux/audit.h>
#include <linux/falloc.h>
+#include <linux/fs_struct.h>
int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
struct file *filp)
{
- int err;
+ int ret;
struct iattr newattrs;
/* Not pretty: "inode->i_size" shouldn't really be signed. But it is. */
}
/* Remove suid/sgid on truncate too */
- newattrs.ia_valid |= should_remove_suid(dentry);
+ ret = should_remove_suid(dentry);
+ if (ret)
+ newattrs.ia_valid |= ret | ATTR_FORCE;
mutex_lock(&dentry->d_inode->i_mutex);
- err = notify_change(dentry, &newattrs);
+ ret = notify_change(dentry, &newattrs);
mutex_unlock(&dentry->d_inode->i_mutex);
- return err;
+ return ret;
}
static long do_sys_truncate(const char __user *pathname, loff_t length)
if (!error)
error = security_path_truncate(&path, length, 0);
if (!error) {
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
error = do_truncate(path.dentry, length, 0, NULL);
}
return error;
}
-SYSCALL_DEFINE2(truncate, const char __user *, path, unsigned long, length)
+SYSCALL_DEFINE2(truncate, const char __user *, path, long, length)
{
- /* on 32-bit boxen it will cut the range 2^31--2^32-1 off */
- return do_sys_truncate(path, (long)length);
+ return do_sys_truncate(path, length);
}
static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
#endif
#endif /* BITS_PER_LONG == 32 */
-SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
+
+int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
{
- struct file *file;
- struct inode *inode;
- long ret = -EINVAL;
+ struct inode *inode = file->f_path.dentry->d_inode;
+ long ret;
if (offset < 0 || len <= 0)
- goto out;
+ return -EINVAL;
/* Return error if mode is not supported */
- ret = -EOPNOTSUPP;
if (mode && !(mode & FALLOC_FL_KEEP_SIZE))
- goto out;
+ return -EOPNOTSUPP;
- ret = -EBADF;
- file = fget(fd);
- if (!file)
- goto out;
if (!(file->f_mode & FMODE_WRITE))
- goto out_fput;
+ return -EBADF;
/*
* Revalidate the write permissions, in case security policy has
* changed since the files were opened.
*/
ret = security_file_permission(file, MAY_WRITE);
if (ret)
- goto out_fput;
-
- inode = file->f_path.dentry->d_inode;
+ return ret;
- ret = -ESPIPE;
if (S_ISFIFO(inode->i_mode))
- goto out_fput;
+ return -ESPIPE;
- ret = -ENODEV;
/*
* Let individual file system decide if it supports preallocation
* for directories or not.
*/
if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
- goto out_fput;
+ return -ENODEV;
- ret = -EFBIG;
/* Check for wrap through zero too */
if (((offset + len) > inode->i_sb->s_maxbytes) || ((offset + len) < 0))
- goto out_fput;
+ return -EFBIG;
- if (inode->i_op->fallocate)
- ret = inode->i_op->fallocate(inode, mode, offset, len);
- else
- ret = -EOPNOTSUPP;
+ if (!inode->i_op->fallocate)
+ return -EOPNOTSUPP;
-out_fput:
- fput(file);
-out:
- return ret;
+ return inode->i_op->fallocate(inode, mode, offset, len);
}
+
+SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
+{
+ struct file *file;
+ int error = -EBADF;
+
+ file = fget(fd);
+ if (file) {
+ error = do_fallocate(file, mode, offset, len);
+ fput(file);
+ }
+
+ return error;
+}
+
#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
asmlinkage long SyS_fallocate(long fd, long mode, loff_t offset, loff_t len)
{
* We do this by temporarily clearing all FS-related capabilities and
* switching the fsuid/fsgid around to the real ones.
*/
-asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
+SYSCALL_DEFINE3(faccessat, int, dfd, const char __user *, filename, int, mode)
{
const struct cred *old_cred;
struct cred *override_cred;
return res;
}
-asmlinkage long sys_access(const char __user *filename, int mode)
+SYSCALL_DEFINE2(access, const char __user *, filename, int, mode)
{
return sys_faccessat(AT_FDCWD, filename, mode);
}
-asmlinkage long sys_chdir(const char __user * filename)
+SYSCALL_DEFINE1(chdir, const char __user *, filename)
{
struct path path;
int error;
return error;
}
-asmlinkage long sys_fchdir(unsigned int fd)
+SYSCALL_DEFINE1(fchdir, unsigned int, fd)
{
struct file *file;
struct inode *inode;
audit_inode(NULL, dentry);
- err = mnt_want_write(file->f_path.mnt);
+ err = mnt_want_write_file(file);
if (err)
goto out_putf;
mutex_lock(&inode->i_mutex);
return err;
}
-asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
- mode_t mode)
+SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode)
{
struct path path;
struct inode *inode;
return error;
}
-asmlinkage long sys_chown(const char __user * filename, uid_t user, gid_t group)
+SYSCALL_DEFINE3(chown, const char __user *, filename, uid_t, user, gid_t, group)
{
struct path path;
int error;
return error;
}
-asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
- gid_t group, int flag)
+SYSCALL_DEFINE5(fchownat, int, dfd, const char __user *, filename, uid_t, user,
+ gid_t, group, int, flag)
{
struct path path;
int error = -EINVAL;
return error;
}
-asmlinkage long sys_lchown(const char __user * filename, uid_t user, gid_t group)
+SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group)
{
struct path path;
int error;
return error;
}
-
-asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group)
+SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
{
struct file * file;
int error = -EBADF;
if (!file)
goto out;
- error = mnt_want_write(file->f_path.mnt);
+ error = mnt_want_write_file(file);
if (error)
goto out_fput;
dentry = file->f_path.dentry;
int error;
struct file *f;
+ validate_creds(cred);
+
/*
* We must always pass in a valid mount pointer. Historically
* callers got away with not passing it, but we must enforce this at
if (!IS_ERR(tmp)) {
fd = get_unused_fd_flags(flags);
if (fd >= 0) {
- struct file *f = do_filp_open(dfd, tmp, flags, mode);
+ struct file *f = do_filp_open(dfd, tmp, flags, mode, 0);
if (IS_ERR(f)) {
put_unused_fd(fd);
fd = PTR_ERR(f);
return fd;
}
-asmlinkage long sys_open(const char __user *filename, int flags, int mode)
+SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, int, mode)
{
long ret;
return ret;
}
-asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
- int mode)
+SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags,
+ int, mode)
{
long ret;
* For backward compatibility? Maybe this should be moved
* into arch/i386 instead?
*/
-asmlinkage long sys_creat(const char __user * pathname, int mode)
+SYSCALL_DEFINE2(creat, const char __user *, pathname, int, mode)
{
return sys_open(pathname, O_CREAT | O_WRONLY | O_TRUNC, mode);
}
* releasing the fd. This ensures that one clone task can't release
* an fd while another clone is opening it.
*/
-asmlinkage long sys_close(unsigned int fd)
+SYSCALL_DEFINE1(close, unsigned int, fd)
{
struct file * filp;
struct files_struct *files = current->files;
spin_unlock(&files->file_lock);
return -EBADF;
}
-
EXPORT_SYMBOL(sys_close);
/*
* This routine simulates a hangup on the tty, to arrange that users
* are given clean terminals at login time.
*/
-asmlinkage long sys_vhangup(void)
+SYSCALL_DEFINE0(vhangup)
{
if (capable(CAP_SYS_TTY_CONFIG)) {
tty_vhangup_self();
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff