redonkable/remarkable-linux
redonkable/remarkable-linux
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

Browse source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] fix sysctl_nr_open bugs
  [PATCH] sanitize anon_inode_getfd()
  [PATCH] split linux/file.h
  [PATCH] make osf_select() use core_sys_select()
  [PATCH] remove horrors with irix tty ioctls handling
  [PATCH] fix file and descriptor handling in perfmon
This commit is contained in:
Linus Torvalds 2008-05-02 11:23:14 -07:00
parent 1be1d6b7f3 5c598b3428
commit b66e1f11eb
32 changed files with 186 additions and 274 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
arch/alpha/kernel/osf_sys.c
View file

@ -981,27 +981,18 @@ asmlinkage int
osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
struct timeval32 __user *tvp)
{
fd_set_bits fds;
char *bits;
size_t size;
long timeout;
int ret = -EINVAL;
struct fdtable *fdt;
int max_fds;
timeout = MAX_SCHEDULE_TIMEOUT;
s64 timeout = MAX_SCHEDULE_TIMEOUT;
if (tvp) {
time_t sec, usec;
if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
|| __get_user(sec, &tvp->tv_sec)
|| __get_user(usec, &tvp->tv_usec)) {
ret = -EFAULT;
goto out_nofds;
return -EFAULT;
}
if (sec < 0 || usec < 0)
goto out_nofds;
return -EINVAL;
if ((unsigned long) sec < MAX_SELECT_SECONDS) {
timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
@ -1009,60 +1000,8 @@ osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
}
}
rcu_read_lock();
fdt = files_fdtable(current->files);
max_fds = fdt->max_fds;
rcu_read_unlock();
if (n < 0 || n > max_fds)
goto out_nofds;
/*
* We need 6 bitmaps (in/out/ex for both incoming and outgoing),
* since we used fdset we need to allocate memory in units of
* long-words.
*/
ret = -ENOMEM;
size = FDS_BYTES(n);
bits = kmalloc(6 * size, GFP_KERNEL);
if (!bits)
goto out_nofds;
fds.in = (unsigned long *) bits;
fds.out = (unsigned long *) (bits + size);
fds.ex = (unsigned long *) (bits + 2*size);
fds.res_in = (unsigned long *) (bits + 3*size);
fds.res_out = (unsigned long *) (bits + 4*size);
fds.res_ex = (unsigned long *) (bits + 5*size);
if ((ret = get_fd_set(n, inp->fds_bits, fds.in)) ||
(ret = get_fd_set(n, outp->fds_bits, fds.out)) ||
(ret = get_fd_set(n, exp->fds_bits, fds.ex)))
goto out;
zero_fd_set(n, fds.res_in);
zero_fd_set(n, fds.res_out);
zero_fd_set(n, fds.res_ex);
ret = do_select(n, &fds, &timeout);
/* OSF does not copy back the remaining time. */
if (ret < 0)
goto out;
if (!ret) {
ret = -ERESTARTNOHAND;
if (signal_pending(current))
goto out;
ret = 0;
}
if (set_fd_set(n, inp->fds_bits, fds.res_in) ||
set_fd_set(n, outp->fds_bits, fds.res_out) ||
set_fd_set(n, exp->fds_bits, fds.res_ex))
ret = -EFAULT;
out:
kfree(bits);
out_nofds:
return ret;
return core_sys_select(n, inp, outp, exp, &timeout);
}
struct rusage32 {

55
arch/mips/kernel/irixioctl.c
View file

@ -27,33 +27,6 @@ struct irix_termios {
cc_t c_cc[NCCS];
};
extern void start_tty(struct tty_struct *tty);
static struct tty_struct *get_tty(int fd)
{
struct file *filp;
struct tty_struct *ttyp = NULL;
rcu_read_lock();
filp = fcheck(fd);
if(filp && filp->private_data) {
ttyp = (struct tty_struct *) filp->private_data;
if(ttyp->magic != TTY_MAGIC)
ttyp =NULL;
}
rcu_read_unlock();
return ttyp;
}
static struct tty_struct *get_real_tty(struct tty_struct *tp)
{
if (tp->driver->type == TTY_DRIVER_TYPE_PTY &&
tp->driver->subtype == PTY_TYPE_MASTER)
return tp->link;
else
return tp;
}
asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg)
{
struct tty_struct *tp, *rtp;
@ -146,34 +119,24 @@ asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg)
error = sys_ioctl(fd, TIOCNOTTY, arg);
break;
case 0x00007416:
case 0x00007416: {
pid_t pid;
#ifdef DEBUG_IOCTLS
printk("TIOCGSID, %08lx) ", arg);
#endif
tp = get_tty(fd);
if(!tp) {
error = -EINVAL;
break;
}
rtp = get_real_tty(tp);
#ifdef DEBUG_IOCTLS
printk("rtp->session=%d ", rtp->session);
#endif
error = put_user(rtp->session, (unsigned long __user *) arg);
old_fs = get_fs(); set_fs(get_ds());
error = sys_ioctl(fd, TIOCGSID, (unsigned long)&pid);
set_fs(old_fs);
if (!error)
error = put_user(pid, (unsigned long __user *) arg);
break;
}
case 0x746e:
/* TIOCSTART, same effect as hitting ^Q */
#ifdef DEBUG_IOCTLS
printk("TIOCSTART, %08lx) ", arg);
#endif
tp = get_tty(fd);
if(!tp) {
error = -EINVAL;
break;
}
rtp = get_real_tty(tp);
start_tty(rtp);
error = sys_ioctl(fd, TCXONC, TCOON);
break;
case 0x20006968:

1
arch/mips/kernel/kspd.c
View file

@ -20,6 +20,7 @@
#include <linux/sched.h>
#include <linux/unistd.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/fs.h>
#include <linux/syscalls.h>
#include <linux/workqueue.h>

1
arch/powerpc/platforms/cell/spufs/coredump.c
View file

@ -22,6 +22,7 @@
#include <linux/elf.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/module.h>

1
drivers/char/tty_audit.c
View file

@ -11,6 +11,7 @@
#include <linux/audit.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/tty.h>
struct tty_audit_buf {

1
drivers/char/tty_io.c
View file

@ -78,6 +78,7 @@
#include <linux/tty_flip.h>
#include <linux/devpts_fs.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/console.h>
#include <linux/timer.h>
#include <linux/ctype.h>

13
fs/anon_inodes.c
View file

@ -57,9 +57,6 @@ static struct dentry_operations anon_inodefs_dentry_operations = {
* anonymous inode, and a dentry that describe the "class"
* of the file
*
* @pfd: [out] pointer to the file descriptor
* @dpinode: [out] pointer to the inode
* @pfile: [out] pointer to the file struct
* @name: [in] name of the "class" of the new file
* @fops [in] file operations for the new file
* @priv [in] private data for the new file (will be file's private_data)
@ -68,10 +65,9 @@ static struct dentry_operations anon_inodefs_dentry_operations = {
* that do not need to have a full-fledged inode in order to operate correctly.
* All the files created with anon_inode_getfd() will share a single inode,
* hence saving memory and avoiding code duplication for the file/inode/dentry
* setup.
* setup. Returns new descriptor or -error.
*/
int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
const char *name, const struct file_operations *fops,
int anon_inode_getfd(const char *name, const struct file_operations *fops,
void *priv)
{
struct qstr this;
@ -125,10 +121,7 @@ int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
fd_install(fd, file);
*pfd = fd;
*pinode = anon_inode_inode;
*pfile = file;
return 0;
return fd;
err_dput:
dput(dentry);

1
fs/compat.c
View file

@ -24,6 +24,7 @@
#include <linux/fcntl.h>
#include <linux/namei.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/vfs.h>
#include <linux/ioctl.h>
#include <linux/init.h>

2
fs/dnotify.c
View file

@ -20,7 +20,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/fdtable.h>
int dir_notify_enable __read_mostly = 1;

15
fs/eventfd.c
View file

@ -200,10 +200,8 @@ struct file *eventfd_fget(int fd)
asmlinkage long sys_eventfd(unsigned int count)
{
int error, fd;
int fd;
struct eventfd_ctx *ctx;
struct file *file;
struct inode *inode;
ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
@ -216,12 +214,9 @@ asmlinkage long sys_eventfd(unsigned int count)
* When we call this, the initialization must be complete, since
* anon_inode_getfd() will install the fd.
*/
error = anon_inode_getfd(&fd, &inode, &file, "[eventfd]",
&eventfd_fops, ctx);
if (!error)
return fd;
kfree(ctx);
return error;
fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx);
if (fd < 0)
kfree(ctx);
return fd;
}

23
fs/eventpoll.c
View file

@ -1050,8 +1050,6 @@ asmlinkage long sys_epoll_create(int size)
{
int error, fd = -1;
struct eventpoll *ep;
struct inode *inode;
struct file *file;
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d)\n",
current, size));
@ -1061,29 +1059,24 @@ asmlinkage long sys_epoll_create(int size)
* structure ( "struct eventpoll" ).
*/
error = -EINVAL;
if (size <= 0 || (error = ep_alloc(&ep)) != 0)
if (size <= 0 || (error = ep_alloc(&ep)) < 0) {
fd = error;
goto error_return;
}
/*
* Creates all the items needed to setup an eventpoll file. That is,
* a file structure, and inode and a free file descriptor.
* a file structure and a free file descriptor.
*/
error = anon_inode_getfd(&fd, &inode, &file, "[eventpoll]",
&eventpoll_fops, ep);
if (error)
goto error_free;
fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep);
if (fd < 0)
ep_free(ep);
error_return:
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
current, size, fd));
return fd;
error_free:
ep_free(ep);
error_return:
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
current, size, error));
return error;
}
/*

1
fs/exec.c
View file

@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/mman.h>
#include <linux/a.out.h>
#include <linux/stat.h>

1
fs/fcntl.c
View file

@ -9,6 +9,7 @@
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/capability.h>
#include <linux/dnotify.h>
#include <linux/smp_lock.h>

23
fs/file.c
View file

@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
@ -149,8 +150,16 @@ static struct fdtable * alloc_fdtable(unsigned int nr)
nr /= (1024 / sizeof(struct file *));
nr = roundup_pow_of_two(nr + 1);
nr *= (1024 / sizeof(struct file *));
if (nr > sysctl_nr_open)
nr = sysctl_nr_open;
/*
* Note that this can drive nr *below* what we had passed if sysctl_nr_open
* had been set lower between the check in expand_files() and here. Deal
* with that in caller, it's cheaper that way.
*
* We make sure that nr remains a multiple of BITS_PER_LONG - otherwise
* bitmaps handling below becomes unpleasant, to put it mildly...
*/
if (unlikely(nr > sysctl_nr_open))
nr = ((sysctl_nr_open - 1) | (BITS_PER_LONG - 1)) + 1;
fdt = kmalloc(sizeof(struct fdtable), GFP_KERNEL);
if (!fdt)
@ -198,6 +207,16 @@ static int expand_fdtable(struct files_struct *files, int nr)
spin_lock(&files->file_lock);
if (!new_fdt)
return -ENOMEM;
/*
* extremely unlikely race - sysctl_nr_open decreased between the check in
* caller and alloc_fdtable(). Cheaper to catch it here...
*/
if (unlikely(new_fdt->max_fds <= nr)) {
free_fdarr(new_fdt);
free_fdset(new_fdt);
kfree(new_fdt);
return -EMFILE;
}
/*
* Check again since another task may have expanded the fd table while
* we dropped the lock

1
fs/file_table.c
View file

@ -8,6 +8,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/fs.h>

1
fs/locks.c
View file

@ -116,6 +116,7 @@
#include <linux/capability.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/module.h>

1
fs/open.c
View file

@ -7,6 +7,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/quotaops.h>
#include <linux/fsnotify.h>
#include <linux/module.h>

1
fs/proc/array.c
View file

@ -73,6 +73,7 @@
#include <linux/signal.h>
#include <linux/highmem.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/times.h>
#include <linux/cpuset.h>
#include <linux/rcupdate.h>

1
fs/proc/base.c
View file

@ -56,6 +56,7 @@
#include <linux/init.h>
#include <linux/capability.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <linux/namei.h>

3
fs/select.c
View file

@ -21,6 +21,7 @@
#include <linux/poll.h>
#include <linux/personality.h> /* for STICKY_TIMEOUTS */
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/fs.h>
#include <linux/rcupdate.h>
@ -298,7 +299,7 @@ int do_select(int n, fd_set_bits *fds, s64 *timeout)
#define MAX_SELECT_SECONDS \
((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
static int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp,
int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, s64 *timeout)
{
fd_set_bits fds;

17
fs/signalfd.c
View file

@ -207,11 +207,8 @@ static const struct file_operations signalfd_fops = {
asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
{
int error;
sigset_t sigmask;
struct signalfd_ctx *ctx;
struct file *file;
struct inode *inode;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
@ -230,12 +227,11 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas
* When we call this, the initialization must be complete, since
* anon_inode_getfd() will install the fd.
*/
error = anon_inode_getfd(&ufd, &inode, &file, "[signalfd]",
&signalfd_fops, ctx);
if (error)
goto err_fdalloc;
ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx);
if (ufd < 0)
kfree(ctx);
} else {
file = fget(ufd);
struct file *file = fget(ufd);
if (!file)
return -EBADF;
ctx = file->private_data;
@ -252,9 +248,4 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas
}
return ufd;
err_fdalloc:
kfree(ctx);
return error;
}

11
fs/timerfd.c
View file

@ -181,10 +181,8 @@ static struct file *timerfd_fget(int fd)
asmlinkage long sys_timerfd_create(int clockid, int flags)
{
int error, ufd;
int ufd;
struct timerfd_ctx *ctx;
struct file *file;
struct inode *inode;
if (flags)
return -EINVAL;
@ -200,12 +198,9 @@ asmlinkage long sys_timerfd_create(int clockid, int flags)
ctx->clockid = clockid;
hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS);
error = anon_inode_getfd(&ufd, &inode, &file, "[timerfd]",
&timerfd_fops, ctx);
if (error) {
ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx);
if (ufd < 0)
kfree(ctx);
return error;
}
return ufd;
}

3
include/linux/anon_inodes.h
View file

@ -8,8 +8,7 @@
#ifndef _LINUX_ANON_INODES_H
#define _LINUX_ANON_INODES_H
int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
const char *name, const struct file_operations *fops,
int anon_inode_getfd(const char *name, const struct file_operations *fops,
void *priv);
#endif /* _LINUX_ANON_INODES_H */

99
include/linux/fdtable.h Normal file
View file

@ -0,0 +1,99 @@
/*
* descriptor table internals; you almost certainly want file.h instead.
*/
#ifndef __LINUX_FDTABLE_H
#define __LINUX_FDTABLE_H
#include <asm/atomic.h>
#include <linux/posix_types.h>
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/rcupdate.h>
#include <linux/types.h>
/*
* The default fd array needs to be at least BITS_PER_LONG,
* as this is the granularity returned by copy_fdset().
*/
#define NR_OPEN_DEFAULT BITS_PER_LONG
/*
* The embedded_fd_set is a small fd_set,
* suitable for most tasks (which open <= BITS_PER_LONG files)
*/
struct embedded_fd_set {
unsigned long fds_bits[1];
};
struct fdtable {
unsigned int max_fds;
struct file ** fd; /* current fd array */
fd_set *close_on_exec;
fd_set *open_fds;
struct rcu_head rcu;
struct fdtable *next;
};
/*
* Open file table structure
*/
struct files_struct {
/*
* read mostly part
*/
atomic_t count;
struct fdtable *fdt;
struct fdtable fdtab;
/*
* written part on a separate cache line in SMP
*/
spinlock_t file_lock ____cacheline_aligned_in_smp;
int next_fd;
struct embedded_fd_set close_on_exec_init;
struct embedded_fd_set open_fds_init;
struct file * fd_array[NR_OPEN_DEFAULT];
};
#define files_fdtable(files) (rcu_dereference((files)->fdt))
extern struct kmem_cache *filp_cachep;
struct file_operations;
struct vfsmount;
struct dentry;
extern int expand_files(struct files_struct *, int nr);
extern void free_fdtable_rcu(struct rcu_head *rcu);
extern void __init files_defer_init(void);
static inline void free_fdtable(struct fdtable *fdt)
{
call_rcu(&fdt->rcu, free_fdtable_rcu);
}
static inline struct file * fcheck_files(struct files_struct *files, unsigned int fd)
{
struct file * file = NULL;
struct fdtable *fdt = files_fdtable(files);
if (fd < fdt->max_fds)
file = rcu_dereference(fdt->fd[fd]);
return file;
}
/*
* Check whether the specified fd has an open file.
*/
#define fcheck(fd) fcheck_files(current->files, fd)
struct task_struct;
struct files_struct *get_files_struct(struct task_struct *);
void put_files_struct(struct files_struct *fs);
void reset_files_struct(struct files_struct *);
int unshare_files(struct files_struct **);
extern struct kmem_cache *files_cachep;
#endif /* __LINUX_FDTABLE_H */

86
include/linux/file.h
View file

@ -5,59 +5,11 @@
#ifndef __LINUX_FILE_H
#define __LINUX_FILE_H
#include <asm/atomic.h>
#include <linux/posix_types.h>
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/rcupdate.h>
#include <linux/types.h>
#include <linux/posix_types.h>
/*
* The default fd array needs to be at least BITS_PER_LONG,
* as this is the granularity returned by copy_fdset().
*/
#define NR_OPEN_DEFAULT BITS_PER_LONG
/*
* The embedded_fd_set is a small fd_set,
* suitable for most tasks (which open <= BITS_PER_LONG files)
*/
struct embedded_fd_set {
unsigned long fds_bits[1];
};
struct fdtable {
unsigned int max_fds;
struct file ** fd; /* current fd array */
fd_set *close_on_exec;
fd_set *open_fds;
struct rcu_head rcu;
struct fdtable *next;
};
/*
* Open file table structure
*/
struct files_struct {
/*
* read mostly part
*/
atomic_t count;
struct fdtable *fdt;
struct fdtable fdtab;
/*
* written part on a separate cache line in SMP
*/
spinlock_t file_lock ____cacheline_aligned_in_smp;
int next_fd;
struct embedded_fd_set close_on_exec_init;
struct embedded_fd_set open_fds_init;
struct file * fd_array[NR_OPEN_DEFAULT];
};
#define files_fdtable(files) (rcu_dereference((files)->fdt))
extern struct kmem_cache *filp_cachep;
struct file;
extern void __fput(struct file *);
extern void fput(struct file *);
@ -85,41 +37,7 @@ extern void put_filp(struct file *);
extern int get_unused_fd(void);
extern int get_unused_fd_flags(int flags);
extern void put_unused_fd(unsigned int fd);
struct kmem_cache;
extern int expand_files(struct files_struct *, int nr);
extern void free_fdtable_rcu(struct rcu_head *rcu);
extern void __init files_defer_init(void);
static inline void free_fdtable(struct fdtable *fdt)
{
call_rcu(&fdt->rcu, free_fdtable_rcu);
}
static inline struct file * fcheck_files(struct files_struct *files, unsigned int fd)
{
struct file * file = NULL;
struct fdtable *fdt = files_fdtable(files);
if (fd < fdt->max_fds)
file = rcu_dereference(fdt->fd[fd]);
return file;
}
/*
* Check whether the specified fd has an open file.
*/
#define fcheck(fd) fcheck_files(current->files, fd)
extern void fd_install(unsigned int fd, struct file *file);
struct task_struct;
struct files_struct *get_files_struct(struct task_struct *);
void put_files_struct(struct files_struct *fs);
void reset_files_struct(struct files_struct *);
int unshare_files(struct files_struct **);
extern struct kmem_cache *files_cachep;
#endif /* __LINUX_FILE_H */

2
include/linux/init_task.h
View file

@ -1,7 +1,7 @@
#ifndef _LINUX__INIT_TASK_H
#define _LINUX__INIT_TASK_H
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/rcupdate.h>
#include <linux/irqflags.h>
#include <linux/utsname.h>

2
include/linux/poll.h
View file

@ -117,6 +117,8 @@ void zero_fd_set(unsigned long nr, unsigned long *fdset)
extern int do_select(int n, fd_set_bits *fds, s64 *timeout);
extern int do_sys_poll(struct pollfd __user * ufds, unsigned int nfds,
s64 *timeout);
extern int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, s64 *timeout);
#endif /* KERNEL */

1
kernel/exit.c
View file

@ -19,6 +19,7 @@
#include <linux/acct.h>
#include <linux/tsacct_kern.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/binfmts.h>
#include <linux/nsproxy.h>
#include <linux/pid_namespace.h>

1
kernel/fork.c
View file

@ -22,6 +22,7 @@
#include <linux/mempolicy.h>
#include <linux/sem.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/key.h>
#include <linux/binfmts.h>
#include <linux/mman.h>

1
kernel/kmod.c
View file

@ -27,6 +27,7 @@
#include <linux/mnt_namespace.h>
#include <linux/completion.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/workqueue.h>
#include <linux/security.h>
#include <linux/mount.h>

1
security/selinux/hooks.c
View file

@ -39,6 +39,7 @@
#include <linux/spinlock.h>
#include <linux/syscalls.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/ext2_fs.h>

21
virt/kvm/kvm_main.c
View file

@ -834,16 +834,9 @@ static const struct file_operations kvm_vcpu_fops = {
*/
static int create_vcpu_fd(struct kvm_vcpu *vcpu)
{
int fd, r;
struct inode *inode;
struct file *file;
r = anon_inode_getfd(&fd, &inode, &file,
"kvm-vcpu", &kvm_vcpu_fops, vcpu);
if (r) {
int fd = anon_inode_getfd("kvm-vcpu", &kvm_vcpu_fops, vcpu);
if (fd < 0)
kvm_put_kvm(vcpu->kvm);
return r;
}
return fd;
}
@ -1168,19 +1161,15 @@ static const struct file_operations kvm_vm_fops = {
static int kvm_dev_ioctl_create_vm(void)
{
int fd, r;
struct inode *inode;
struct file *file;
int fd;
struct kvm *kvm;
kvm = kvm_create_vm();
if (IS_ERR(kvm))
return PTR_ERR(kvm);
r = anon_inode_getfd(&fd, &inode, &file, "kvm-vm", &kvm_vm_fops, kvm);
if (r) {
fd = anon_inode_getfd("kvm-vm", &kvm_vm_fops, kvm);
if (fd < 0)
kvm_put_kvm(kvm);
return r;
}
return fd;
}