switch simple cases of fget_light to fdget
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 3494f2f..0a4f0c8b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1397,7 +1397,6 @@
u64 *transid, bool readonly,
struct btrfs_qgroup_inherit **inherit)
{
- struct file *src_file;
int namelen;
int ret = 0;
@@ -1421,15 +1420,14 @@
ret = btrfs_mksubvol(&file->f_path, name, namelen,
NULL, transid, readonly, inherit);
} else {
+ struct fd src = fdget(fd);
struct inode *src_inode;
- int fput_needed;
- src_file = fget_light(fd, &fput_needed);
- if (!src_file) {
+ if (!src.file) {
ret = -EINVAL;
goto out_drop_write;
}
- src_inode = src_file->f_path.dentry->d_inode;
+ src_inode = src.file->f_path.dentry->d_inode;
if (src_inode->i_sb != file->f_path.dentry->d_inode->i_sb) {
printk(KERN_INFO "btrfs: Snapshot src from "
"another FS\n");
@@ -1439,7 +1437,7 @@
BTRFS_I(src_inode)->root,
transid, readonly, inherit);
}
- fput_light(src_file, fput_needed);
+ fdput(src);
}
out_drop_write:
mnt_drop_write_file(file);
@@ -2341,7 +2339,7 @@
{
struct inode *inode = fdentry(file)->d_inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct file *src_file;
+ struct fd src_file;
struct inode *src;
struct btrfs_trans_handle *trans;
struct btrfs_path *path;
@@ -2350,7 +2348,7 @@
struct btrfs_key key;
u32 nritems;
int slot;
- int ret, fput_needed;
+ int ret;
u64 len = olen;
u64 bs = root->fs_info->sb->s_blocksize;
u64 hint_byte;
@@ -2376,24 +2374,24 @@
if (ret)
return ret;
- src_file = fget_light(srcfd, &fput_needed);
- if (!src_file) {
+ src_file = fdget(srcfd);
+ if (!src_file.file) {
ret = -EBADF;
goto out_drop_write;
}
ret = -EXDEV;
- if (src_file->f_path.mnt != file->f_path.mnt)
+ if (src_file.file->f_path.mnt != file->f_path.mnt)
goto out_fput;
- src = src_file->f_dentry->d_inode;
+ src = src_file.file->f_dentry->d_inode;
ret = -EINVAL;
if (src == inode)
goto out_fput;
/* the src must be open for reading */
- if (!(src_file->f_mode & FMODE_READ))
+ if (!(src_file.file->f_mode & FMODE_READ))
goto out_fput;
/* don't make the dst file partly checksummed */
@@ -2724,7 +2722,7 @@
vfree(buf);
btrfs_free_path(path);
out_fput:
- fput_light(src_file, fput_needed);
+ fdput(src_file);
out_drop_write:
mnt_drop_write_file(file);
return ret;
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index bd2313d..d315c6c 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -107,9 +107,9 @@
static int get_device_index(struct coda_mount_data *data)
{
- struct file *file;
+ struct fd f;
struct inode *inode;
- int idx, fput_needed;
+ int idx;
if (data == NULL) {
printk("coda_read_super: Bad mount data\n");
@@ -121,17 +121,17 @@
return -1;
}
- file = fget_light(data->fd, &fput_needed);
- if (!file)
+ f = fdget(data->fd);
+ if (!f.file)
goto Ebadf;
- inode = file->f_path.dentry->d_inode;
+ inode = f.file->f_path.dentry->d_inode;
if (!S_ISCHR(inode->i_mode) || imajor(inode) != CODA_PSDEV_MAJOR) {
- fput_light(file, fput_needed);
+ fdput(f);
goto Ebadf;
}
idx = iminor(inode);
- fput_light(file, fput_needed);
+ fdput(f);
if (idx < 0 || idx >= MAX_CODADEVS) {
printk("coda_read_super: Bad minor number\n");
diff --git a/fs/compat.c b/fs/compat.c
index 1bdb350..d72d51e 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -870,22 +870,20 @@
struct compat_old_linux_dirent __user *dirent, unsigned int count)
{
int error;
- struct file *file;
- int fput_needed;
+ struct fd f = fdget(fd);
struct compat_readdir_callback buf;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
return -EBADF;
buf.result = 0;
buf.dirent = dirent;
- error = vfs_readdir(file, compat_fillonedir, &buf);
+ error = vfs_readdir(f.file, compat_fillonedir, &buf);
if (buf.result)
error = buf.result;
- fput_light(file, fput_needed);
+ fdput(f);
return error;
}
@@ -949,17 +947,16 @@
asmlinkage long compat_sys_getdents(unsigned int fd,
struct compat_linux_dirent __user *dirent, unsigned int count)
{
- struct file * file;
+ struct fd f;
struct compat_linux_dirent __user * lastdirent;
struct compat_getdents_callback buf;
- int fput_needed;
int error;
if (!access_ok(VERIFY_WRITE, dirent, count))
return -EFAULT;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
return -EBADF;
buf.current_dir = dirent;
@@ -967,17 +964,17 @@
buf.count = count;
buf.error = 0;
- error = vfs_readdir(file, compat_filldir, &buf);
+ error = vfs_readdir(f.file, compat_filldir, &buf);
if (error >= 0)
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
- if (put_user(file->f_pos, &lastdirent->d_off))
+ if (put_user(f.file->f_pos, &lastdirent->d_off))
error = -EFAULT;
else
error = count - buf.count;
}
- fput_light(file, fput_needed);
+ fdput(f);
return error;
}
@@ -1035,17 +1032,16 @@
asmlinkage long compat_sys_getdents64(unsigned int fd,
struct linux_dirent64 __user * dirent, unsigned int count)
{
- struct file * file;
+ struct fd f;
struct linux_dirent64 __user * lastdirent;
struct compat_getdents_callback64 buf;
- int fput_needed;
int error;
if (!access_ok(VERIFY_WRITE, dirent, count))
return -EFAULT;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
return -EBADF;
buf.current_dir = dirent;
@@ -1053,18 +1049,18 @@
buf.count = count;
buf.error = 0;
- error = vfs_readdir(file, compat_filldir64, &buf);
+ error = vfs_readdir(f.file, compat_filldir64, &buf);
if (error >= 0)
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
- typeof(lastdirent->d_off) d_off = file->f_pos;
+ typeof(lastdirent->d_off) d_off = f.file->f_pos;
if (__put_user_unaligned(d_off, &lastdirent->d_off))
error = -EFAULT;
else
error = count - buf.count;
}
- fput_light(file, fput_needed);
+ fdput(f);
return error;
}
#endif /* ! __ARCH_OMIT_COMPAT_SYS_GETDENTS64 */
@@ -1152,18 +1148,16 @@
compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen)
{
- struct file *file;
- int fput_needed;
+ struct fd f = fdget(fd);
ssize_t ret;
loff_t pos;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
return -EBADF;
- pos = file->f_pos;
- ret = compat_readv(file, vec, vlen, &pos);
- file->f_pos = pos;
- fput_light(file, fput_needed);
+ pos = f.file->f_pos;
+ ret = compat_readv(f.file, vec, vlen, &pos);
+ f.file->f_pos = pos;
+ fdput(f);
return ret;
}
@@ -1171,19 +1165,18 @@
compat_sys_preadv64(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, loff_t pos)
{
- struct file *file;
- int fput_needed;
+ struct fd f;
ssize_t ret;
if (pos < 0)
return -EINVAL;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
return -EBADF;
ret = -ESPIPE;
- if (file->f_mode & FMODE_PREAD)
- ret = compat_readv(file, vec, vlen, &pos);
- fput_light(file, fput_needed);
+ if (f.file->f_mode & FMODE_PREAD)
+ ret = compat_readv(f.file, vec, vlen, &pos);
+ fdput(f);
return ret;
}
@@ -1221,18 +1214,16 @@
compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen)
{
- struct file *file;
- int fput_needed;
+ struct fd f = fdget(fd);
ssize_t ret;
loff_t pos;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
return -EBADF;
- pos = file->f_pos;
- ret = compat_writev(file, vec, vlen, &pos);
- file->f_pos = pos;
- fput_light(file, fput_needed);
+ pos = f.file->f_pos;
+ ret = compat_writev(f.file, vec, vlen, &pos);
+ f.file->f_pos = pos;
+ fdput(f);
return ret;
}
@@ -1240,19 +1231,18 @@
compat_sys_pwritev64(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, loff_t pos)
{
- struct file *file;
- int fput_needed;
+ struct fd f;
ssize_t ret;
if (pos < 0)
return -EINVAL;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
return -EBADF;
ret = -ESPIPE;
- if (file->f_mode & FMODE_PWRITE)
- ret = compat_writev(file, vec, vlen, &pos);
- fput_light(file, fput_needed);
+ if (f.file->f_mode & FMODE_PWRITE)
+ ret = compat_writev(f.file, vec, vlen, &pos);
+ fdput(f);
return ret;
}
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index debdfe0..48f1987 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1531,16 +1531,13 @@
asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
unsigned long arg)
{
- struct file *filp;
+ struct fd f = fdget(fd);
int error = -EBADF;
- int fput_needed;
-
- filp = fget_light(fd, &fput_needed);
- if (!filp)
+ if (!f.file)
goto out;
/* RED-PEN how should LSM module know it's handling 32bit? */
- error = security_file_ioctl(filp, cmd, arg);
+ error = security_file_ioctl(f.file, cmd, arg);
if (error)
goto out_fput;
@@ -1560,30 +1557,30 @@
#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
case FS_IOC_RESVSP_32:
case FS_IOC_RESVSP64_32:
- error = compat_ioctl_preallocate(filp, compat_ptr(arg));
+ error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
goto out_fput;
#else
case FS_IOC_RESVSP:
case FS_IOC_RESVSP64:
- error = ioctl_preallocate(filp, compat_ptr(arg));
+ error = ioctl_preallocate(f.file, compat_ptr(arg));
goto out_fput;
#endif
case FIBMAP:
case FIGETBSZ:
case FIONREAD:
- if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))
+ if (S_ISREG(f.file->f_path.dentry->d_inode->i_mode))
break;
/*FALL THROUGH*/
default:
- if (filp->f_op && filp->f_op->compat_ioctl) {
- error = filp->f_op->compat_ioctl(filp, cmd, arg);
+ if (f.file->f_op && f.file->f_op->compat_ioctl) {
+ error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
if (error != -ENOIOCTLCMD)
goto out_fput;
}
- if (!filp->f_op || !filp->f_op->unlocked_ioctl)
+ if (!f.file->f_op || !f.file->f_op->unlocked_ioctl)
goto do_ioctl;
break;
}
@@ -1591,7 +1588,7 @@
if (compat_ioctl_check_table(XFORM(cmd)))
goto found_handler;
- error = do_ioctl_trans(fd, cmd, arg, filp);
+ error = do_ioctl_trans(fd, cmd, arg, f.file);
if (error == -ENOIOCTLCMD)
error = -ENOTTY;
@@ -1600,9 +1597,9 @@
found_handler:
arg = (unsigned long)compat_ptr(arg);
do_ioctl:
- error = do_vfs_ioctl(filp, fd, cmd, arg);
+ error = do_vfs_ioctl(f.file, fd, cmd, arg);
out_fput:
- fput_light(filp, fput_needed);
+ fdput(f);
out:
return error;
}
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 567ae72..cd96649 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1809,8 +1809,8 @@
SYSCALL_DEFINE4(epoll_wait, int, epfd, struct epoll_event __user *, events,
int, maxevents, int, timeout)
{
- int error, fput_needed;
- struct file *file;
+ int error;
+ struct fd f;
struct eventpoll *ep;
/* The maximum number of event must be greater than zero */
@@ -1818,38 +1818,33 @@
return -EINVAL;
/* Verify that the area passed by the user is writeable */
- if (!access_ok(VERIFY_WRITE, events, maxevents * sizeof(struct epoll_event))) {
- error = -EFAULT;
- goto error_return;
- }
+ if (!access_ok(VERIFY_WRITE, events, maxevents * sizeof(struct epoll_event)))
+ return -EFAULT;
/* Get the "struct file *" for the eventpoll file */
- error = -EBADF;
- file = fget_light(epfd, &fput_needed);
- if (!file)
- goto error_return;
+ f = fdget(epfd);
+ if (!f.file)
+ return -EBADF;
/*
* We have to check that the file structure underneath the fd
* the user passed to us _is_ an eventpoll file.
*/
error = -EINVAL;
- if (!is_file_epoll(file))
+ if (!is_file_epoll(f.file))
goto error_fput;
/*
* At this point it is safe to assume that the "private_data" contains
* our own data structure.
*/
- ep = file->private_data;
+ ep = f.file->private_data;
/* Time to fish for events ... */
error = ep_poll(ep, events, maxevents, timeout);
error_fput:
- fput_light(file, fput_needed);
-error_return:
-
+ fdput(f);
return error;
}
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 39646f2..5439d6a 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -233,8 +233,8 @@
case EXT4_IOC_MOVE_EXT: {
struct move_extent me;
- struct file *donor_filp;
- int err, fput_needed;
+ struct fd donor;
+ int err;
if (!(filp->f_mode & FMODE_READ) ||
!(filp->f_mode & FMODE_WRITE))
@@ -245,11 +245,11 @@
return -EFAULT;
me.moved_len = 0;
- donor_filp = fget_light(me.donor_fd, &fput_needed);
- if (!donor_filp)
+ donor = fdget(me.donor_fd);
+ if (!donor.file)
return -EBADF;
- if (!(donor_filp->f_mode & FMODE_WRITE)) {
+ if (!(donor.file->f_mode & FMODE_WRITE)) {
err = -EBADF;
goto mext_out;
}
@@ -266,7 +266,7 @@
if (err)
goto mext_out;
- err = ext4_move_extents(filp, donor_filp, me.orig_start,
+ err = ext4_move_extents(filp, donor.file, me.orig_start,
me.donor_start, me.len, &me.moved_len);
mnt_drop_write_file(filp);
@@ -274,7 +274,7 @@
&me, sizeof(me)))
err = -EFAULT;
mext_out:
- fput_light(donor_filp, fput_needed);
+ fdput(donor);
return err;
}
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 40a5bfb..91af39a 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -348,25 +348,23 @@
SYSCALL_DEFINE3(fcntl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
{
- struct file *filp;
- int fput_needed;
+ struct fd f = fdget_raw(fd);
long err = -EBADF;
- filp = fget_raw_light(fd, &fput_needed);
- if (!filp)
+ if (!f.file)
goto out;
- if (unlikely(filp->f_mode & FMODE_PATH)) {
+ if (unlikely(f.file->f_mode & FMODE_PATH)) {
if (!check_fcntl_cmd(cmd))
goto out1;
}
- err = security_file_fcntl(filp, cmd, arg);
+ err = security_file_fcntl(f.file, cmd, arg);
if (!err)
- err = do_fcntl(fd, cmd, arg, filp);
+ err = do_fcntl(fd, cmd, arg, f.file);
out1:
- fput_light(filp, fput_needed);
+ fdput(f);
out:
return err;
}
@@ -375,38 +373,36 @@
SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
unsigned long, arg)
{
- struct file * filp;
+ struct fd f = fdget_raw(fd);
long err = -EBADF;
- int fput_needed;
- filp = fget_raw_light(fd, &fput_needed);
- if (!filp)
+ if (!f.file)
goto out;
- if (unlikely(filp->f_mode & FMODE_PATH)) {
+ if (unlikely(f.file->f_mode & FMODE_PATH)) {
if (!check_fcntl_cmd(cmd))
goto out1;
}
- err = security_file_fcntl(filp, cmd, arg);
+ err = security_file_fcntl(f.file, cmd, arg);
if (err)
goto out1;
switch (cmd) {
case F_GETLK64:
- err = fcntl_getlk64(filp, (struct flock64 __user *) arg);
+ err = fcntl_getlk64(f.file, (struct flock64 __user *) arg);
break;
case F_SETLK64:
case F_SETLKW64:
- err = fcntl_setlk64(fd, filp, cmd,
+ err = fcntl_setlk64(fd, f.file, cmd,
(struct flock64 __user *) arg);
break;
default:
- err = do_fcntl(fd, cmd, arg, filp);
+ err = do_fcntl(fd, cmd, arg, f.file);
break;
}
out1:
- fput_light(filp, fput_needed);
+ fdput(f);
out:
return err;
}
diff --git a/fs/fhandle.c b/fs/fhandle.c
index a48e4a1..f775bfd 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -113,24 +113,21 @@
static struct vfsmount *get_vfsmount_from_fd(int fd)
{
- struct path path;
+ struct vfsmount *mnt;
if (fd == AT_FDCWD) {
struct fs_struct *fs = current->fs;
spin_lock(&fs->lock);
- path = fs->pwd;
- mntget(path.mnt);
+ mnt = mntget(fs->pwd.mnt);
spin_unlock(&fs->lock);
} else {
- int fput_needed;
- struct file *file = fget_light(fd, &fput_needed);
- if (!file)
+ struct fd f = fdget(fd);
+ if (!f.file)
return ERR_PTR(-EBADF);
- path = file->f_path;
- mntget(path.mnt);
- fput_light(file, fput_needed);
+ mnt = mntget(f.file->f_path.mnt);
+ fdput(f);
}
- return path.mnt;
+ return mnt;
}
static int vfs_dentry_acceptable(void *context, struct dentry *dentry)
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 29167be..3bdad6d 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -603,21 +603,14 @@
SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
{
- struct file *filp;
- int error = -EBADF;
- int fput_needed;
+ int error;
+ struct fd f = fdget(fd);
- filp = fget_light(fd, &fput_needed);
- if (!filp)
- goto out;
-
- error = security_file_ioctl(filp, cmd, arg);
- if (error)
- goto out_fput;
-
- error = do_vfs_ioctl(filp, fd, cmd, arg);
- out_fput:
- fput_light(filp, fput_needed);
- out:
+ if (!f.file)
+ return -EBADF;
+ error = security_file_ioctl(f.file, cmd, arg);
+ if (!error)
+ error = do_vfs_ioctl(f.file, fd, cmd, arg);
+ fdput(f);
return error;
}
diff --git a/fs/locks.c b/fs/locks.c
index 7e81bfc..abc7dc6 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1625,15 +1625,13 @@
*/
SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
{
- struct file *filp;
- int fput_needed;
+ struct fd f = fdget(fd);
struct file_lock *lock;
int can_sleep, unlock;
int error;
error = -EBADF;
- filp = fget_light(fd, &fput_needed);
- if (!filp)
+ if (!f.file)
goto out;
can_sleep = !(cmd & LOCK_NB);
@@ -1641,31 +1639,31 @@
unlock = (cmd == LOCK_UN);
if (!unlock && !(cmd & LOCK_MAND) &&
- !(filp->f_mode & (FMODE_READ|FMODE_WRITE)))
+ !(f.file->f_mode & (FMODE_READ|FMODE_WRITE)))
goto out_putf;
- error = flock_make_lock(filp, &lock, cmd);
+ error = flock_make_lock(f.file, &lock, cmd);
if (error)
goto out_putf;
if (can_sleep)
lock->fl_flags |= FL_SLEEP;
- error = security_file_lock(filp, lock->fl_type);
+ error = security_file_lock(f.file, lock->fl_type);
if (error)
goto out_free;
- if (filp->f_op && filp->f_op->flock)
- error = filp->f_op->flock(filp,
+ if (f.file->f_op && f.file->f_op->flock)
+ error = f.file->f_op->flock(f.file,
(can_sleep) ? F_SETLKW : F_SETLK,
lock);
else
- error = flock_lock_file_wait(filp, lock);
+ error = flock_lock_file_wait(f.file, lock);
out_free:
locks_free_lock(lock);
out_putf:
- fput_light(filp, fput_needed);
+ fdput(f);
out:
return error;
}
diff --git a/fs/namei.c b/fs/namei.c
index c5b85b3..e1c7072 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1797,8 +1797,6 @@
struct nameidata *nd, struct file **fp)
{
int retval = 0;
- int fput_needed;
- struct file *file;
nd->last_type = LAST_ROOT; /* if there are only slashes... */
nd->flags = flags | LOOKUP_JUMPED;
@@ -1850,44 +1848,41 @@
get_fs_pwd(current->fs, &nd->path);
}
} else {
+ struct fd f = fdget_raw(dfd);
struct dentry *dentry;
- file = fget_raw_light(dfd, &fput_needed);
- retval = -EBADF;
- if (!file)
- goto out_fail;
+ if (!f.file)
+ return -EBADF;
- dentry = file->f_path.dentry;
+ dentry = f.file->f_path.dentry;
if (*name) {
- retval = -ENOTDIR;
- if (!S_ISDIR(dentry->d_inode->i_mode))
- goto fput_fail;
+ if (!S_ISDIR(dentry->d_inode->i_mode)) {
+ fdput(f);
+ return -ENOTDIR;
+ }
retval = inode_permission(dentry->d_inode, MAY_EXEC);
- if (retval)
- goto fput_fail;
+ if (retval) {
+ fdput(f);
+ return retval;
+ }
}
- nd->path = file->f_path;
+ nd->path = f.file->f_path;
if (flags & LOOKUP_RCU) {
- if (fput_needed)
- *fp = file;
+ if (f.need_put)
+ *fp = f.file;
nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);
lock_rcu_walk();
} else {
- path_get(&file->f_path);
- fput_light(file, fput_needed);
+ path_get(&nd->path);
+ fdput(f);
}
}
nd->inode = nd->path.dentry->d_inode;
return 0;
-
-fput_fail:
- fput_light(file, fput_needed);
-out_fail:
- return retval;
}
static inline int lookup_last(struct nameidata *nd, struct path *path)
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index ea48693..721d692 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -451,24 +451,22 @@
dfd, filename, flags);
if (filename == NULL) {
- struct file *file;
- int fput_needed;
+ struct fd f = fdget(dfd);
ret = -EBADF;
- file = fget_light(dfd, &fput_needed);
- if (!file)
+ if (!f.file)
goto out;
ret = -ENOTDIR;
if ((flags & FAN_MARK_ONLYDIR) &&
- !(S_ISDIR(file->f_path.dentry->d_inode->i_mode))) {
- fput_light(file, fput_needed);
+ !(S_ISDIR(f.file->f_path.dentry->d_inode->i_mode))) {
+ fdput(f);
goto out;
}
- *path = file->f_path;
+ *path = f.file->f_path;
path_get(path);
- fput_light(file, fput_needed);
+ fdput(f);
} else {
unsigned int lookup_flags = 0;
@@ -748,9 +746,9 @@
struct inode *inode = NULL;
struct vfsmount *mnt = NULL;
struct fsnotify_group *group;
- struct file *filp;
+ struct fd f;
struct path path;
- int ret, fput_needed;
+ int ret;
pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
__func__, fanotify_fd, flags, dfd, pathname, mask);
@@ -784,15 +782,15 @@
#endif
return -EINVAL;
- filp = fget_light(fanotify_fd, &fput_needed);
- if (unlikely(!filp))
+ f = fdget(fanotify_fd);
+ if (unlikely(!f.file))
return -EBADF;
/* verify that this is indeed an fanotify instance */
ret = -EINVAL;
- if (unlikely(filp->f_op != &fanotify_fops))
+ if (unlikely(f.file->f_op != &fanotify_fops))
goto fput_and_out;
- group = filp->private_data;
+ group = f.file->private_data;
/*
* group->priority == FS_PRIO_0 == FAN_CLASS_NOTIF. These are not
@@ -839,7 +837,7 @@
path_put(&path);
fput_and_out:
- fput_light(filp, fput_needed);
+ fdput(f);
return ret;
}
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 8445fbc..c311dda 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -757,16 +757,16 @@
struct fsnotify_group *group;
struct inode *inode;
struct path path;
- struct file *filp;
- int ret, fput_needed;
+ struct fd f;
+ int ret;
unsigned flags = 0;
- filp = fget_light(fd, &fput_needed);
- if (unlikely(!filp))
+ f = fdget(fd);
+ if (unlikely(!f.file))
return -EBADF;
/* verify that this is indeed an inotify instance */
- if (unlikely(filp->f_op != &inotify_fops)) {
+ if (unlikely(f.file->f_op != &inotify_fops)) {
ret = -EINVAL;
goto fput_and_out;
}
@@ -782,13 +782,13 @@
/* inode held in place by reference to path; group by fget on fd */
inode = path.dentry->d_inode;
- group = filp->private_data;
+ group = f.file->private_data;
/* create/update an inode mark */
ret = inotify_update_watch(group, inode, mask);
path_put(&path);
fput_and_out:
- fput_light(filp, fput_needed);
+ fdput(f);
return ret;
}
@@ -796,19 +796,19 @@
{
struct fsnotify_group *group;
struct inotify_inode_mark *i_mark;
- struct file *filp;
- int ret = 0, fput_needed;
+ struct fd f;
+ int ret = 0;
- filp = fget_light(fd, &fput_needed);
- if (unlikely(!filp))
+ f = fdget(fd);
+ if (unlikely(!f.file))
return -EBADF;
/* verify that this is indeed an inotify instance */
ret = -EINVAL;
- if (unlikely(filp->f_op != &inotify_fops))
+ if (unlikely(f.file->f_op != &inotify_fops))
goto out;
- group = filp->private_data;
+ group = f.file->private_data;
ret = -EINVAL;
i_mark = inotify_idr_find(group, wd);
@@ -823,7 +823,7 @@
fsnotify_put_mark(&i_mark->fsn_mark);
out:
- fput_light(filp, fput_needed);
+ fdput(f);
return ret;
}
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 61c28ae..f7c648d 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1746,11 +1746,10 @@
long fd;
int sectsize;
char *p = (char *)page;
- struct file *filp = NULL;
- struct inode *inode = NULL;
+ struct fd f;
+ struct inode *inode;
ssize_t ret = -EINVAL;
int live_threshold;
- int fput_needed;
if (reg->hr_bdev)
goto out;
@@ -1767,26 +1766,26 @@
if (fd < 0 || fd >= INT_MAX)
goto out;
- filp = fget_light(fd, &fput_needed);
- if (filp == NULL)
+ f = fdget(fd);
+ if (f.file == NULL)
goto out;
if (reg->hr_blocks == 0 || reg->hr_start_block == 0 ||
reg->hr_block_bytes == 0)
- goto out;
+ goto out2;
- inode = igrab(filp->f_mapping->host);
+ inode = igrab(f.file->f_mapping->host);
if (inode == NULL)
- goto out;
+ goto out2;
if (!S_ISBLK(inode->i_mode))
- goto out;
+ goto out3;
- reg->hr_bdev = I_BDEV(filp->f_mapping->host);
+ reg->hr_bdev = I_BDEV(f.file->f_mapping->host);
ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, NULL);
if (ret) {
reg->hr_bdev = NULL;
- goto out;
+ goto out3;
}
inode = NULL;
@@ -1798,7 +1797,7 @@
"blocksize %u incorrect for device, expected %d",
reg->hr_block_bytes, sectsize);
ret = -EINVAL;
- goto out;
+ goto out3;
}
o2hb_init_region_params(reg);
@@ -1812,13 +1811,13 @@
ret = o2hb_map_slot_data(reg);
if (ret) {
mlog_errno(ret);
- goto out;
+ goto out3;
}
ret = o2hb_populate_slot_data(reg);
if (ret) {
mlog_errno(ret);
- goto out;
+ goto out3;
}
INIT_DELAYED_WORK(®->hr_write_timeout_work, o2hb_write_timeout);
@@ -1848,7 +1847,7 @@
if (IS_ERR(hb_task)) {
ret = PTR_ERR(hb_task);
mlog_errno(ret);
- goto out;
+ goto out3;
}
spin_lock(&o2hb_live_lock);
@@ -1864,7 +1863,7 @@
if (reg->hr_aborted_start) {
ret = -EIO;
- goto out;
+ goto out3;
}
/* Ok, we were woken. Make sure it wasn't by drop_item() */
@@ -1883,11 +1882,11 @@
printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%s)\n",
config_item_name(®->hr_item), reg->hr_dev_name);
+out3:
+ iput(inode);
+out2:
+ fdput(f);
out:
- if (filp)
- fput_light(filp, fput_needed);
- if (inode)
- iput(inode);
if (ret < 0) {
if (reg->hr_bdev) {
blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE);
diff --git a/fs/open.c b/fs/open.c
index 3c741ea..8560326 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -134,25 +134,25 @@
{
struct inode *inode;
struct dentry *dentry;
- struct file *file;
- int error, fput_needed;
+ struct fd f;
+ int error;
error = -EINVAL;
if (length < 0)
goto out;
error = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
goto out;
/* explicitly opened as large or we are on 64-bit box */
- if (file->f_flags & O_LARGEFILE)
+ if (f.file->f_flags & O_LARGEFILE)
small = 0;
- dentry = file->f_path.dentry;
+ dentry = f.file->f_path.dentry;
inode = dentry->d_inode;
error = -EINVAL;
- if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE))
+ if (!S_ISREG(inode->i_mode) || !(f.file->f_mode & FMODE_WRITE))
goto out_putf;
error = -EINVAL;
@@ -165,14 +165,14 @@
goto out_putf;
sb_start_write(inode->i_sb);
- error = locks_verify_truncate(inode, file, length);
+ error = locks_verify_truncate(inode, f.file, length);
if (!error)
- error = security_path_truncate(&file->f_path);
+ error = security_path_truncate(&f.file->f_path);
if (!error)
- error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file);
+ error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
sb_end_write(inode->i_sb);
out_putf:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}
@@ -276,15 +276,13 @@
SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
{
- struct file *file;
- int error = -EBADF, fput_needed;
+ struct fd f = fdget(fd);
+ int error = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (file) {
- error = do_fallocate(file, mode, offset, len);
- fput_light(file, fput_needed);
+ if (f.file) {
+ error = do_fallocate(f.file, mode, offset, len);
+ fdput(f);
}
-
return error;
}
@@ -400,16 +398,15 @@
SYSCALL_DEFINE1(fchdir, unsigned int, fd)
{
- struct file *file;
+ struct fd f = fdget_raw(fd);
struct inode *inode;
- int error, fput_needed;
+ int error = -EBADF;
error = -EBADF;
- file = fget_raw_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
goto out;
- inode = file->f_path.dentry->d_inode;
+ inode = f.file->f_path.dentry->d_inode;
error = -ENOTDIR;
if (!S_ISDIR(inode->i_mode))
@@ -417,9 +414,9 @@
error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
if (!error)
- set_fs_pwd(current->fs, &file->f_path);
+ set_fs_pwd(current->fs, &f.file->f_path);
out_putf:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}
@@ -582,21 +579,20 @@
SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
{
- struct file *file;
- int error = -EBADF, fput_needed;
+ struct fd f = fdget(fd);
+ int error = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
goto out;
- error = mnt_want_write_file(file);
+ error = mnt_want_write_file(f.file);
if (error)
goto out_fput;
- audit_inode(NULL, file->f_path.dentry);
- error = chown_common(&file->f_path, user, group);
- mnt_drop_write_file(file);
+ audit_inode(NULL, f.file->f_path.dentry);
+ error = chown_common(&f.file->f_path, user, group);
+ mnt_drop_write_file(f.file);
out_fput:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}
diff --git a/fs/read_write.c b/fs/read_write.c
index 1adfb69..28b3827 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -232,23 +232,18 @@
SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, origin)
{
off_t retval;
- struct file * file;
- int fput_needed;
-
- retval = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
- goto bad;
+ struct fd f = fdget(fd);
+ if (!f.file)
+ return -EBADF;
retval = -EINVAL;
if (origin <= SEEK_MAX) {
- loff_t res = vfs_llseek(file, offset, origin);
+ loff_t res = vfs_llseek(f.file, offset, origin);
retval = res;
if (res != (loff_t)retval)
retval = -EOVERFLOW; /* LFS: should only happen on 32 bit platforms */
}
- fput_light(file, fput_needed);
-bad:
+ fdput(f);
return retval;
}
@@ -258,20 +253,17 @@
unsigned int, origin)
{
int retval;
- struct file * file;
+ struct fd f = fdget(fd);
loff_t offset;
- int fput_needed;
- retval = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
- goto bad;
+ if (!f.file)
+ return -EBADF;
retval = -EINVAL;
if (origin > SEEK_MAX)
goto out_putf;
- offset = vfs_llseek(file, ((loff_t) offset_high << 32) | offset_low,
+ offset = vfs_llseek(f.file, ((loff_t) offset_high << 32) | offset_low,
origin);
retval = (int)offset;
@@ -281,8 +273,7 @@
retval = 0;
}
out_putf:
- fput_light(file, fput_needed);
-bad:
+ fdput(f);
return retval;
}
#endif
@@ -461,34 +452,29 @@
SYSCALL_DEFINE3(read, unsigned int, fd, char __user *, buf, size_t, count)
{
- struct file *file;
+ struct fd f = fdget(fd);
ssize_t ret = -EBADF;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (file) {
- loff_t pos = file_pos_read(file);
- ret = vfs_read(file, buf, count, &pos);
- file_pos_write(file, pos);
- fput_light(file, fput_needed);
+ if (f.file) {
+ loff_t pos = file_pos_read(f.file);
+ ret = vfs_read(f.file, buf, count, &pos);
+ file_pos_write(f.file, pos);
+ fdput(f);
}
-
return ret;
}
SYSCALL_DEFINE3(write, unsigned int, fd, const char __user *, buf,
size_t, count)
{
- struct file *file;
+ struct fd f = fdget(fd);
ssize_t ret = -EBADF;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (file) {
- loff_t pos = file_pos_read(file);
- ret = vfs_write(file, buf, count, &pos);
- file_pos_write(file, pos);
- fput_light(file, fput_needed);
+ if (f.file) {
+ loff_t pos = file_pos_read(f.file);
+ ret = vfs_write(f.file, buf, count, &pos);
+ file_pos_write(f.file, pos);
+ fdput(f);
}
return ret;
@@ -497,19 +483,18 @@
SYSCALL_DEFINE(pread64)(unsigned int fd, char __user *buf,
size_t count, loff_t pos)
{
- struct file *file;
+ struct fd f;
ssize_t ret = -EBADF;
- int fput_needed;
if (pos < 0)
return -EINVAL;
- file = fget_light(fd, &fput_needed);
- if (file) {
+ f = fdget(fd);
+ if (f.file) {
ret = -ESPIPE;
- if (file->f_mode & FMODE_PREAD)
- ret = vfs_read(file, buf, count, &pos);
- fput_light(file, fput_needed);
+ if (f.file->f_mode & FMODE_PREAD)
+ ret = vfs_read(f.file, buf, count, &pos);
+ fdput(f);
}
return ret;
@@ -526,19 +511,18 @@
SYSCALL_DEFINE(pwrite64)(unsigned int fd, const char __user *buf,
size_t count, loff_t pos)
{
- struct file *file;
+ struct fd f;
ssize_t ret = -EBADF;
- int fput_needed;
if (pos < 0)
return -EINVAL;
- file = fget_light(fd, &fput_needed);
- if (file) {
+ f = fdget(fd);
+ if (f.file) {
ret = -ESPIPE;
- if (file->f_mode & FMODE_PWRITE)
- ret = vfs_write(file, buf, count, &pos);
- fput_light(file, fput_needed);
+ if (f.file->f_mode & FMODE_PWRITE)
+ ret = vfs_write(f.file, buf, count, &pos);
+ fdput(f);
}
return ret;
@@ -789,16 +773,14 @@
SYSCALL_DEFINE3(readv, unsigned long, fd, const struct iovec __user *, vec,
unsigned long, vlen)
{
- struct file *file;
+ struct fd f = fdget(fd);
ssize_t ret = -EBADF;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (file) {
- loff_t pos = file_pos_read(file);
- ret = vfs_readv(file, vec, vlen, &pos);
- file_pos_write(file, pos);
- fput_light(file, fput_needed);
+ if (f.file) {
+ loff_t pos = file_pos_read(f.file);
+ ret = vfs_readv(f.file, vec, vlen, &pos);
+ file_pos_write(f.file, pos);
+ fdput(f);
}
if (ret > 0)
@@ -810,16 +792,14 @@
SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,
unsigned long, vlen)
{
- struct file *file;
+ struct fd f = fdget(fd);
ssize_t ret = -EBADF;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (file) {
- loff_t pos = file_pos_read(file);
- ret = vfs_writev(file, vec, vlen, &pos);
- file_pos_write(file, pos);
- fput_light(file, fput_needed);
+ if (f.file) {
+ loff_t pos = file_pos_read(f.file);
+ ret = vfs_writev(f.file, vec, vlen, &pos);
+ file_pos_write(f.file, pos);
+ fdput(f);
}
if (ret > 0)
@@ -838,19 +818,18 @@
unsigned long, vlen, unsigned long, pos_l, unsigned long, pos_h)
{
loff_t pos = pos_from_hilo(pos_h, pos_l);
- struct file *file;
+ struct fd f;
ssize_t ret = -EBADF;
- int fput_needed;
if (pos < 0)
return -EINVAL;
- file = fget_light(fd, &fput_needed);
- if (file) {
+ f = fdget(fd);
+ if (f.file) {
ret = -ESPIPE;
- if (file->f_mode & FMODE_PREAD)
- ret = vfs_readv(file, vec, vlen, &pos);
- fput_light(file, fput_needed);
+ if (f.file->f_mode & FMODE_PREAD)
+ ret = vfs_readv(f.file, vec, vlen, &pos);
+ fdput(f);
}
if (ret > 0)
@@ -863,19 +842,18 @@
unsigned long, vlen, unsigned long, pos_l, unsigned long, pos_h)
{
loff_t pos = pos_from_hilo(pos_h, pos_l);
- struct file *file;
+ struct fd f;
ssize_t ret = -EBADF;
- int fput_needed;
if (pos < 0)
return -EINVAL;
- file = fget_light(fd, &fput_needed);
- if (file) {
+ f = fdget(fd);
+ if (f.file) {
ret = -ESPIPE;
- if (file->f_mode & FMODE_PWRITE)
- ret = vfs_writev(file, vec, vlen, &pos);
- fput_light(file, fput_needed);
+ if (f.file->f_mode & FMODE_PWRITE)
+ ret = vfs_writev(f.file, vec, vlen, &pos);
+ fdput(f);
}
if (ret > 0)
@@ -887,28 +865,28 @@
static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
size_t count, loff_t max)
{
- struct file * in_file, * out_file;
- struct inode * in_inode, * out_inode;
+ struct fd in, out;
+ struct inode *in_inode, *out_inode;
loff_t pos;
ssize_t retval;
- int fput_needed_in, fput_needed_out, fl;
+ int fl;
/*
* Get input file, and verify that it is ok..
*/
retval = -EBADF;
- in_file = fget_light(in_fd, &fput_needed_in);
- if (!in_file)
+ in = fdget(in_fd);
+ if (!in.file)
goto out;
- if (!(in_file->f_mode & FMODE_READ))
+ if (!(in.file->f_mode & FMODE_READ))
goto fput_in;
retval = -ESPIPE;
if (!ppos)
- ppos = &in_file->f_pos;
+ ppos = &in.file->f_pos;
else
- if (!(in_file->f_mode & FMODE_PREAD))
+ if (!(in.file->f_mode & FMODE_PREAD))
goto fput_in;
- retval = rw_verify_area(READ, in_file, ppos, count);
+ retval = rw_verify_area(READ, in.file, ppos, count);
if (retval < 0)
goto fput_in;
count = retval;
@@ -917,15 +895,15 @@
* Get output file, and verify that it is ok..
*/
retval = -EBADF;
- out_file = fget_light(out_fd, &fput_needed_out);
- if (!out_file)
+ out = fdget(out_fd);
+ if (!out.file)
goto fput_in;
- if (!(out_file->f_mode & FMODE_WRITE))
+ if (!(out.file->f_mode & FMODE_WRITE))
goto fput_out;
retval = -EINVAL;
- in_inode = in_file->f_path.dentry->d_inode;
- out_inode = out_file->f_path.dentry->d_inode;
- retval = rw_verify_area(WRITE, out_file, &out_file->f_pos, count);
+ in_inode = in.file->f_path.dentry->d_inode;
+ out_inode = out.file->f_path.dentry->d_inode;
+ retval = rw_verify_area(WRITE, out.file, &out.file->f_pos, count);
if (retval < 0)
goto fput_out;
count = retval;
@@ -949,10 +927,10 @@
* and the application is arguably buggy if it doesn't expect
* EAGAIN on a non-blocking file descriptor.
*/
- if (in_file->f_flags & O_NONBLOCK)
+ if (in.file->f_flags & O_NONBLOCK)
fl = SPLICE_F_NONBLOCK;
#endif
- retval = do_splice_direct(in_file, ppos, out_file, count, fl);
+ retval = do_splice_direct(in.file, ppos, out.file, count, fl);
if (retval > 0) {
add_rchar(current, retval);
@@ -965,9 +943,9 @@
retval = -EOVERFLOW;
fput_out:
- fput_light(out_file, fput_needed_out);
+ fdput(out);
fput_in:
- fput_light(in_file, fput_needed_in);
+ fdput(in);
out:
return retval;
}
diff --git a/fs/readdir.c b/fs/readdir.c
index 39e3370..5e69ef5 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -106,22 +106,20 @@
struct old_linux_dirent __user *, dirent, unsigned int, count)
{
int error;
- struct file * file;
+ struct fd f = fdget(fd);
struct readdir_callback buf;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
return -EBADF;
buf.result = 0;
buf.dirent = dirent;
- error = vfs_readdir(file, fillonedir, &buf);
+ error = vfs_readdir(f.file, fillonedir, &buf);
if (buf.result)
error = buf.result;
- fput_light(file, fput_needed);
+ fdput(f);
return error;
}
@@ -191,17 +189,16 @@
SYSCALL_DEFINE3(getdents, unsigned int, fd,
struct linux_dirent __user *, dirent, unsigned int, count)
{
- struct file * file;
+ struct fd f;
struct linux_dirent __user * lastdirent;
struct getdents_callback buf;
- int fput_needed;
int error;
if (!access_ok(VERIFY_WRITE, dirent, count))
return -EFAULT;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
return -EBADF;
buf.current_dir = dirent;
@@ -209,17 +206,17 @@
buf.count = count;
buf.error = 0;
- error = vfs_readdir(file, filldir, &buf);
+ error = vfs_readdir(f.file, filldir, &buf);
if (error >= 0)
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
- if (put_user(file->f_pos, &lastdirent->d_off))
+ if (put_user(f.file->f_pos, &lastdirent->d_off))
error = -EFAULT;
else
error = count - buf.count;
}
- fput_light(file, fput_needed);
+ fdput(f);
return error;
}
@@ -272,17 +269,16 @@
SYSCALL_DEFINE3(getdents64, unsigned int, fd,
struct linux_dirent64 __user *, dirent, unsigned int, count)
{
- struct file * file;
+ struct fd f;
struct linux_dirent64 __user * lastdirent;
struct getdents_callback64 buf;
- int fput_needed;
int error;
if (!access_ok(VERIFY_WRITE, dirent, count))
return -EFAULT;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
return -EBADF;
buf.current_dir = dirent;
@@ -290,17 +286,17 @@
buf.count = count;
buf.error = 0;
- error = vfs_readdir(file, filldir64, &buf);
+ error = vfs_readdir(f.file, filldir64, &buf);
if (error >= 0)
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
- typeof(lastdirent->d_off) d_off = file->f_pos;
+ typeof(lastdirent->d_off) d_off = f.file->f_pos;
if (__put_user(d_off, &lastdirent->d_off))
error = -EFAULT;
else
error = count - buf.count;
}
- fput_light(file, fput_needed);
+ fdput(f);
return error;
}
diff --git a/fs/select.c b/fs/select.c
index ffdd16d..2ef72d9 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -428,8 +428,6 @@
for (i = 0; i < n; ++rinp, ++routp, ++rexp) {
unsigned long in, out, ex, all_bits, bit = 1, mask, j;
unsigned long res_in = 0, res_out = 0, res_ex = 0;
- const struct file_operations *f_op = NULL;
- struct file *file = NULL;
in = *inp++; out = *outp++; ex = *exp++;
all_bits = in | out | ex;
@@ -439,20 +437,21 @@
}
for (j = 0; j < BITS_PER_LONG; ++j, ++i, bit <<= 1) {
- int fput_needed;
+ struct fd f;
if (i >= n)
break;
if (!(bit & all_bits))
continue;
- file = fget_light(i, &fput_needed);
- if (file) {
- f_op = file->f_op;
+ f = fdget(i);
+ if (f.file) {
+ const struct file_operations *f_op;
+ f_op = f.file->f_op;
mask = DEFAULT_POLLMASK;
if (f_op && f_op->poll) {
wait_key_set(wait, in, out, bit);
- mask = (*f_op->poll)(file, wait);
+ mask = (*f_op->poll)(f.file, wait);
}
- fput_light(file, fput_needed);
+ fdput(f);
if ((mask & POLLIN_SET) && (in & bit)) {
res_in |= bit;
retval++;
@@ -725,20 +724,17 @@
mask = 0;
fd = pollfd->fd;
if (fd >= 0) {
- int fput_needed;
- struct file * file;
-
- file = fget_light(fd, &fput_needed);
+ struct fd f = fdget(fd);
mask = POLLNVAL;
- if (file != NULL) {
+ if (f.file) {
mask = DEFAULT_POLLMASK;
- if (file->f_op && file->f_op->poll) {
+ if (f.file->f_op && f.file->f_op->poll) {
pwait->_key = pollfd->events|POLLERR|POLLHUP;
- mask = file->f_op->poll(file, pwait);
+ mask = f.file->f_op->poll(f.file, pwait);
}
/* Mask out unneeded events. */
mask &= pollfd->events | POLLERR | POLLHUP;
- fput_light(file, fput_needed);
+ fdput(f);
}
}
pollfd->revents = mask;
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 9f35a37..8bee4e5 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -269,13 +269,12 @@
if (ufd < 0)
kfree(ctx);
} else {
- int fput_needed;
- struct file *file = fget_light(ufd, &fput_needed);
- if (!file)
+ struct fd f = fdget(ufd);
+ if (!f.file)
return -EBADF;
- ctx = file->private_data;
- if (file->f_op != &signalfd_fops) {
- fput_light(file, fput_needed);
+ ctx = f.file->private_data;
+ if (f.file->f_op != &signalfd_fops) {
+ fdput(f);
return -EINVAL;
}
spin_lock_irq(¤t->sighand->siglock);
@@ -283,7 +282,7 @@
spin_unlock_irq(¤t->sighand->siglock);
wake_up(¤t->sighand->signalfd_wqh);
- fput_light(file, fput_needed);
+ fdput(f);
}
return ufd;
diff --git a/fs/splice.c b/fs/splice.c
index 41514dd..13e5b47 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1666,9 +1666,8 @@
SYSCALL_DEFINE4(vmsplice, int, fd, const struct iovec __user *, iov,
unsigned long, nr_segs, unsigned int, flags)
{
- struct file *file;
+ struct fd f;
long error;
- int fput;
if (unlikely(nr_segs > UIO_MAXIOV))
return -EINVAL;
@@ -1676,14 +1675,14 @@
return 0;
error = -EBADF;
- file = fget_light(fd, &fput);
- if (file) {
- if (file->f_mode & FMODE_WRITE)
- error = vmsplice_to_pipe(file, iov, nr_segs, flags);
- else if (file->f_mode & FMODE_READ)
- error = vmsplice_to_user(file, iov, nr_segs, flags);
+ f = fdget(fd);
+ if (f.file) {
+ if (f.file->f_mode & FMODE_WRITE)
+ error = vmsplice_to_pipe(f.file, iov, nr_segs, flags);
+ else if (f.file->f_mode & FMODE_READ)
+ error = vmsplice_to_user(f.file, iov, nr_segs, flags);
- fput_light(file, fput);
+ fdput(f);
}
return error;
@@ -1693,30 +1692,27 @@
int, fd_out, loff_t __user *, off_out,
size_t, len, unsigned int, flags)
{
+ struct fd in, out;
long error;
- struct file *in, *out;
- int fput_in, fput_out;
if (unlikely(!len))
return 0;
error = -EBADF;
- in = fget_light(fd_in, &fput_in);
- if (in) {
- if (in->f_mode & FMODE_READ) {
- out = fget_light(fd_out, &fput_out);
- if (out) {
- if (out->f_mode & FMODE_WRITE)
- error = do_splice(in, off_in,
- out, off_out,
+ in = fdget(fd_in);
+ if (in.file) {
+ if (in.file->f_mode & FMODE_READ) {
+ out = fdget(fd_out);
+ if (out.file) {
+ if (out.file->f_mode & FMODE_WRITE)
+ error = do_splice(in.file, off_in,
+ out.file, off_out,
len, flags);
- fput_light(out, fput_out);
+ fdput(out);
}
}
-
- fput_light(in, fput_in);
+ fdput(in);
}
-
return error;
}
@@ -2027,26 +2023,25 @@
SYSCALL_DEFINE4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags)
{
- struct file *in;
- int error, fput_in;
+ struct fd in;
+ int error;
if (unlikely(!len))
return 0;
error = -EBADF;
- in = fget_light(fdin, &fput_in);
- if (in) {
- if (in->f_mode & FMODE_READ) {
- int fput_out;
- struct file *out = fget_light(fdout, &fput_out);
-
- if (out) {
- if (out->f_mode & FMODE_WRITE)
- error = do_tee(in, out, len, flags);
- fput_light(out, fput_out);
+ in = fdget(fdin);
+ if (in.file) {
+ if (in.file->f_mode & FMODE_READ) {
+ struct fd out = fdget(fdout);
+ if (out.file) {
+ if (out.file->f_mode & FMODE_WRITE)
+ error = do_tee(in.file, out.file,
+ len, flags);
+ fdput(out);
}
}
- fput_light(in, fput_in);
+ fdput(in);
}
return error;
diff --git a/fs/stat.c b/fs/stat.c
index 4078022..ee18fa1 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -57,13 +57,13 @@
int vfs_fstat(unsigned int fd, struct kstat *stat)
{
- int fput_needed;
- struct file *f = fget_raw_light(fd, &fput_needed);
+ struct fd f = fdget_raw(fd);
int error = -EBADF;
- if (f) {
- error = vfs_getattr(f->f_path.mnt, f->f_path.dentry, stat);
- fput_light(f, fput_needed);
+ if (f.file) {
+ error = vfs_getattr(f.file->f_path.mnt, f.file->f_path.dentry,
+ stat);
+ fdput(f);
}
return error;
}
diff --git a/fs/statfs.c b/fs/statfs.c
index 95ad5c0..f8e832e 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -87,12 +87,11 @@
int fd_statfs(int fd, struct kstatfs *st)
{
- int fput_needed;
- struct file *file = fget_light(fd, &fput_needed);
+ struct fd f = fdget(fd);
int error = -EBADF;
- if (file) {
- error = vfs_statfs(&file->f_path, st);
- fput_light(file, fput_needed);
+ if (f.file) {
+ error = vfs_statfs(&f.file->f_path, st);
+ fdput(f);
}
return error;
}
diff --git a/fs/sync.c b/fs/sync.c
index eb8722d..14eefeb 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -148,21 +148,19 @@
*/
SYSCALL_DEFINE1(syncfs, int, fd)
{
- struct file *file;
+ struct fd f = fdget(fd);
struct super_block *sb;
int ret;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
return -EBADF;
- sb = file->f_dentry->d_sb;
+ sb = f.file->f_dentry->d_sb;
down_read(&sb->s_umount);
ret = sync_filesystem(sb);
up_read(&sb->s_umount);
- fput_light(file, fput_needed);
+ fdput(f);
return ret;
}
@@ -201,14 +199,12 @@
static int do_fsync(unsigned int fd, int datasync)
{
- struct file *file;
+ struct fd f = fdget(fd);
int ret = -EBADF;
- int fput_needed;
- file = fget_light(fd, &fput_needed);
- if (file) {
- ret = vfs_fsync(file, datasync);
- fput_light(file, fput_needed);
+ if (f.file) {
+ ret = vfs_fsync(f.file, datasync);
+ fdput(f);
}
return ret;
}
@@ -291,10 +287,9 @@
unsigned int flags)
{
int ret;
- struct file *file;
+ struct fd f;
struct address_space *mapping;
loff_t endbyte; /* inclusive */
- int fput_needed;
umode_t i_mode;
ret = -EINVAL;
@@ -333,17 +328,17 @@
endbyte--; /* inclusive */
ret = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
goto out;
- i_mode = file->f_path.dentry->d_inode->i_mode;
+ i_mode = f.file->f_path.dentry->d_inode->i_mode;
ret = -ESPIPE;
if (!S_ISREG(i_mode) && !S_ISBLK(i_mode) && !S_ISDIR(i_mode) &&
!S_ISLNK(i_mode))
goto out_put;
- mapping = file->f_mapping;
+ mapping = f.file->f_mapping;
if (!mapping) {
ret = -EINVAL;
goto out_put;
@@ -366,7 +361,7 @@
ret = filemap_fdatawait_range(mapping, offset, endbyte);
out_put:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return ret;
}
diff --git a/fs/timerfd.c b/fs/timerfd.c
index dd91e94..d03822b 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -234,19 +234,17 @@
.llseek = noop_llseek,
};
-static struct file *timerfd_fget(int fd, int *fput_needed)
+static int timerfd_fget(int fd, struct fd *p)
{
- struct file *file;
-
- file = fget_light(fd, fput_needed);
- if (!file)
- return ERR_PTR(-EBADF);
- if (file->f_op != &timerfd_fops) {
- fput_light(file, *fput_needed);
- return ERR_PTR(-EINVAL);
+ struct fd f = fdget(fd);
+ if (!f.file)
+ return -EBADF;
+ if (f.file->f_op != &timerfd_fops) {
+ fdput(f);
+ return -EINVAL;
}
-
- return file;
+ *p = f;
+ return 0;
}
SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
@@ -284,10 +282,10 @@
const struct itimerspec __user *, utmr,
struct itimerspec __user *, otmr)
{
- struct file *file;
+ struct fd f;
struct timerfd_ctx *ctx;
struct itimerspec ktmr, kotmr;
- int ret, fput_needed;
+ int ret;
if (copy_from_user(&ktmr, utmr, sizeof(ktmr)))
return -EFAULT;
@@ -297,10 +295,10 @@
!timespec_valid(&ktmr.it_interval))
return -EINVAL;
- file = timerfd_fget(ufd, &fput_needed);
- if (IS_ERR(file))
- return PTR_ERR(file);
- ctx = file->private_data;
+ ret = timerfd_fget(ufd, &f);
+ if (ret)
+ return ret;
+ ctx = f.file->private_data;
timerfd_setup_cancel(ctx, flags);
@@ -334,7 +332,7 @@
ret = timerfd_setup(ctx, flags, &ktmr);
spin_unlock_irq(&ctx->wqh.lock);
- fput_light(file, fput_needed);
+ fdput(f);
if (otmr && copy_to_user(otmr, &kotmr, sizeof(kotmr)))
return -EFAULT;
@@ -343,15 +341,13 @@
SYSCALL_DEFINE2(timerfd_gettime, int, ufd, struct itimerspec __user *, otmr)
{
- struct file *file;
+ struct fd f;
struct timerfd_ctx *ctx;
struct itimerspec kotmr;
- int fput_needed;
-
- file = timerfd_fget(ufd, &fput_needed);
- if (IS_ERR(file))
- return PTR_ERR(file);
- ctx = file->private_data;
+ int ret = timerfd_fget(ufd, &f);
+ if (ret)
+ return ret;
+ ctx = f.file->private_data;
spin_lock_irq(&ctx->wqh.lock);
if (ctx->expired && ctx->tintv.tv64) {
@@ -363,7 +359,7 @@
kotmr.it_value = ktime_to_timespec(timerfd_get_remaining(ctx));
kotmr.it_interval = ktime_to_timespec(ctx->tintv);
spin_unlock_irq(&ctx->wqh.lock);
- fput_light(file, fput_needed);
+ fdput(f);
return copy_to_user(otmr, &kotmr, sizeof(kotmr)) ? -EFAULT: 0;
}
diff --git a/fs/utimes.c b/fs/utimes.c
index fa4dbe4..bb0696a 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -140,19 +140,18 @@
goto out;
if (filename == NULL && dfd != AT_FDCWD) {
- int fput_needed;
- struct file *file;
+ struct fd f;
if (flags & AT_SYMLINK_NOFOLLOW)
goto out;
- file = fget_light(dfd, &fput_needed);
+ f = fdget(dfd);
error = -EBADF;
- if (!file)
+ if (!f.file)
goto out;
- error = utimes_common(&file->f_path, times);
- fput_light(file, fput_needed);
+ error = utimes_common(&f.file->f_path, times);
+ fdput(f);
} else {
struct path path;
int lookup_flags = 0;
diff --git a/fs/xattr.c b/fs/xattr.c
index 4d45b71..14a7e25 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -399,22 +399,20 @@
SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
const void __user *,value, size_t, size, int, flags)
{
- int fput_needed;
- struct file *f;
+ struct fd f = fdget(fd);
struct dentry *dentry;
int error = -EBADF;
- f = fget_light(fd, &fput_needed);
- if (!f)
+ if (!f.file)
return error;
- dentry = f->f_path.dentry;
+ dentry = f.file->f_path.dentry;
audit_inode(NULL, dentry);
- error = mnt_want_write_file(f);
+ error = mnt_want_write_file(f.file);
if (!error) {
error = setxattr(dentry, name, value, size, flags);
- mnt_drop_write_file(f);
+ mnt_drop_write_file(f.file);
}
- fput_light(f, fput_needed);
+ fdput(f);
return error;
}
@@ -495,16 +493,14 @@
SYSCALL_DEFINE4(fgetxattr, int, fd, const char __user *, name,
void __user *, value, size_t, size)
{
- int fput_needed;
- struct file *f;
+ struct fd f = fdget(fd);
ssize_t error = -EBADF;
- f = fget_light(fd, &fput_needed);
- if (!f)
+ if (!f.file)
return error;
- audit_inode(NULL, f->f_path.dentry);
- error = getxattr(f->f_path.dentry, name, value, size);
- fput_light(f, fput_needed);
+ audit_inode(NULL, f.file->f_path.dentry);
+ error = getxattr(f.file->f_path.dentry, name, value, size);
+ fdput(f);
return error;
}
@@ -576,16 +572,14 @@
SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
{
- int fput_needed;
- struct file *f;
+ struct fd f = fdget(fd);
ssize_t error = -EBADF;
- f = fget_light(fd, &fput_needed);
- if (!f)
+ if (!f.file)
return error;
- audit_inode(NULL, f->f_path.dentry);
- error = listxattr(f->f_path.dentry, list, size);
- fput_light(f, fput_needed);
+ audit_inode(NULL, f.file->f_path.dentry);
+ error = listxattr(f.file->f_path.dentry, list, size);
+ fdput(f);
return error;
}
@@ -645,22 +639,20 @@
SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
{
- int fput_needed;
- struct file *f;
+ struct fd f = fdget(fd);
struct dentry *dentry;
int error = -EBADF;
- f = fget_light(fd, &fput_needed);
- if (!f)
+ if (!f.file)
return error;
- dentry = f->f_path.dentry;
+ dentry = f.file->f_path.dentry;
audit_inode(NULL, dentry);
- error = mnt_want_write_file(f);
+ error = mnt_want_write_file(f.file);
if (!error) {
error = removexattr(dentry, name);
- mnt_drop_write_file(f);
+ mnt_drop_write_file(f.file);
}
- fput_light(f, fput_needed);
+ fdput(f);
return error;
}
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index e6cdf22..b9b8646 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -48,44 +48,44 @@
xfs_swapext_t *sxp)
{
xfs_inode_t *ip, *tip;
- struct file *file, *tmp_file;
- int error = 0, fput_needed, fput_needed_tmp;
+ struct fd f, tmp;
+ int error = 0;
/* Pull information for the target fd */
- file = fget_light((int)sxp->sx_fdtarget, &fput_needed);
- if (!file) {
+ f = fdget((int)sxp->sx_fdtarget);
+ if (!f.file) {
error = XFS_ERROR(EINVAL);
goto out;
}
- if (!(file->f_mode & FMODE_WRITE) ||
- !(file->f_mode & FMODE_READ) ||
- (file->f_flags & O_APPEND)) {
+ if (!(f.file->f_mode & FMODE_WRITE) ||
+ !(f.file->f_mode & FMODE_READ) ||
+ (f.file->f_flags & O_APPEND)) {
error = XFS_ERROR(EBADF);
goto out_put_file;
}
- tmp_file = fget_light((int)sxp->sx_fdtmp, &fput_needed_tmp);
- if (!tmp_file) {
+ tmp = fdget((int)sxp->sx_fdtmp);
+ if (!tmp.file) {
error = XFS_ERROR(EINVAL);
goto out_put_file;
}
- if (!(tmp_file->f_mode & FMODE_WRITE) ||
- !(tmp_file->f_mode & FMODE_READ) ||
- (tmp_file->f_flags & O_APPEND)) {
+ if (!(tmp.file->f_mode & FMODE_WRITE) ||
+ !(tmp.file->f_mode & FMODE_READ) ||
+ (tmp.file->f_flags & O_APPEND)) {
error = XFS_ERROR(EBADF);
goto out_put_tmp_file;
}
- if (IS_SWAPFILE(file->f_path.dentry->d_inode) ||
- IS_SWAPFILE(tmp_file->f_path.dentry->d_inode)) {
+ if (IS_SWAPFILE(f.file->f_path.dentry->d_inode) ||
+ IS_SWAPFILE(tmp.file->f_path.dentry->d_inode)) {
error = XFS_ERROR(EINVAL);
goto out_put_tmp_file;
}
- ip = XFS_I(file->f_path.dentry->d_inode);
- tip = XFS_I(tmp_file->f_path.dentry->d_inode);
+ ip = XFS_I(f.file->f_path.dentry->d_inode);
+ tip = XFS_I(tmp.file->f_path.dentry->d_inode);
if (ip->i_mount != tip->i_mount) {
error = XFS_ERROR(EINVAL);
@@ -105,9 +105,9 @@
error = xfs_swap_extents(ip, tip, sxp);
out_put_tmp_file:
- fput_light(tmp_file, fput_needed_tmp);
+ fdput(tmp);
out_put_file:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 21483ea..8305f2a 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -70,16 +70,16 @@
int hsize;
xfs_handle_t handle;
struct inode *inode;
- struct file *file = NULL;
+ struct fd f;
struct path path;
- int error, fput_needed;
+ int error;
struct xfs_inode *ip;
if (cmd == XFS_IOC_FD_TO_HANDLE) {
- file = fget_light(hreq->fd, &fput_needed);
- if (!file)
+ f = fdget(hreq->fd);
+ if (!f.file)
return -EBADF;
- inode = file->f_path.dentry->d_inode;
+ inode = f.file->f_path.dentry->d_inode;
} else {
error = user_lpath((const char __user *)hreq->path, &path);
if (error)
@@ -134,7 +134,7 @@
out_put:
if (cmd == XFS_IOC_FD_TO_HANDLE)
- fput_light(file, fput_needed);
+ fdput(f);
else
path_put(&path);
return error;