executable_stack);
if (retval < 0)
goto error;
+#ifdef ARCH_HAS_SETUP_ADDITIONAL_PAGES
+ retval = arch_setup_additional_pages(bprm, !!interpreter_name);
+ if (retval < 0)
+ goto error;
+#endif
#endif
/* load the executable and interpreter into memory */
if (phdr->p_vaddr >= seg->p_vaddr &&
phdr->p_vaddr + phdr->p_memsz <=
seg->p_vaddr + seg->p_memsz) {
+ Elf32_Dyn __user *dyn;
+ Elf32_Sword d_tag;
+
params->dynamic_addr =
(phdr->p_vaddr - seg->p_vaddr) +
seg->addr;
goto dynamic_error;
tmp = phdr->p_memsz / sizeof(Elf32_Dyn);
- if (((Elf32_Dyn *)
- params->dynamic_addr)[tmp - 1].d_tag != 0)
+ dyn = (Elf32_Dyn __user *)params->dynamic_addr;
+ __get_user(d_tag, &dyn[tmp - 1].d_tag);
+ if (d_tag != 0)
goto dynamic_error;
break;
}
struct vm_area_struct *vma;
for (vma = current->mm->mmap; vma; vma = vma->vm_next) {
+ #ifdef CONFIG_MMU
unsigned long addr;
+ #endif
if (!maydump(vma, cprm->mm_flags))
continue;
+// SPDX-License-Identifier: GPL-2.0
/*
* Mostly platform independent upcall operations to Venus:
* -- upcalls
UPARG(CODA_FSYNC);
inp->coda_fsync.VFid = *fid;
- error = coda_upcall(coda_vcp(sb), sizeof(union inputArgs),
- &outsize, inp);
+ error = coda_upcall(coda_vcp(sb), insize, &outsize, inp);
CODA_FREE(inp, insize);
return error;
+// SPDX-License-Identifier: GPL-2.0
/*
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
#include <linux/if_tun.h>
#include <linux/ctype.h>
#include <linux/syscalls.h>
-#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
#include <linux/atalk.h>
#include <linux/gfp.h>
#include <linux/cec.h>
return vfs_ioctl(file, cmd, arg);
}
-static int w_long(struct file *file,
- unsigned int cmd, compat_ulong_t __user *argp)
-{
- int err;
- unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
-
- if (valp == NULL)
- return -EFAULT;
- err = do_ioctl(file, cmd, (unsigned long)valp);
- if (err)
- return err;
- if (convert_in_user(valp, argp))
- return -EFAULT;
- return 0;
-}
-
struct compat_video_event {
int32_t type;
compat_time_t timestamp;
return err;
}
-/*
- * I2C layer ioctls
- */
-
-struct i2c_msg32 {
- u16 addr;
- u16 flags;
- u16 len;
- compat_caddr_t buf;
-};
-
-struct i2c_rdwr_ioctl_data32 {
- compat_caddr_t msgs; /* struct i2c_msg __user *msgs */
- u32 nmsgs;
-};
-
-struct i2c_smbus_ioctl_data32 {
- u8 read_write;
- u8 command;
- u32 size;
- compat_caddr_t data; /* union i2c_smbus_data *data */
-};
-
-struct i2c_rdwr_aligned {
- struct i2c_rdwr_ioctl_data cmd;
- struct i2c_msg msgs[0];
-};
-
-static int do_i2c_rdwr_ioctl(struct file *file,
- unsigned int cmd, struct i2c_rdwr_ioctl_data32 __user *udata)
-{
- struct i2c_rdwr_aligned __user *tdata;
- struct i2c_msg __user *tmsgs;
- struct i2c_msg32 __user *umsgs;
- compat_caddr_t datap;
- u32 nmsgs;
- int i;
-
- if (get_user(nmsgs, &udata->nmsgs))
- return -EFAULT;
- if (nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
- return -EINVAL;
-
- if (get_user(datap, &udata->msgs))
- return -EFAULT;
- umsgs = compat_ptr(datap);
-
- tdata = compat_alloc_user_space(sizeof(*tdata) +
- nmsgs * sizeof(struct i2c_msg));
- tmsgs = &tdata->msgs[0];
-
- if (put_user(nmsgs, &tdata->cmd.nmsgs) ||
- put_user(tmsgs, &tdata->cmd.msgs))
- return -EFAULT;
-
- for (i = 0; i < nmsgs; i++) {
- if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
- return -EFAULT;
- if (get_user(datap, &umsgs[i].buf) ||
- put_user(compat_ptr(datap), &tmsgs[i].buf))
- return -EFAULT;
- }
- return do_ioctl(file, cmd, (unsigned long)tdata);
-}
-
-static int do_i2c_smbus_ioctl(struct file *file,
- unsigned int cmd, struct i2c_smbus_ioctl_data32 __user *udata)
-{
- struct i2c_smbus_ioctl_data __user *tdata;
- union {
- /* beginnings of those have identical layouts */
- struct i2c_smbus_ioctl_data32 data32;
- struct i2c_smbus_ioctl_data data;
- } v;
-
- tdata = compat_alloc_user_space(sizeof(*tdata));
- if (tdata == NULL)
- return -ENOMEM;
-
- memset(&v, 0, sizeof(v));
- if (copy_from_user(&v.data32, udata, sizeof(v.data32)))
- return -EFAULT;
- v.data.data = compat_ptr(v.data32.data);
-
- if (copy_to_user(tdata, &v.data, sizeof(v.data)))
- return -EFAULT;
-
- return do_ioctl(file, cmd, (unsigned long)tdata);
-}
-
#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t)
#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t)
#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
-/* i2c */
-COMPATIBLE_IOCTL(I2C_SLAVE)
-COMPATIBLE_IOCTL(I2C_SLAVE_FORCE)
-COMPATIBLE_IOCTL(I2C_TENBIT)
-COMPATIBLE_IOCTL(I2C_PEC)
-COMPATIBLE_IOCTL(I2C_RETRIES)
-COMPATIBLE_IOCTL(I2C_TIMEOUT)
/* hiddev */
COMPATIBLE_IOCTL(HIDIOCGVERSION)
COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
case TIOCGSERIAL:
case TIOCSSERIAL:
return serial_struct_ioctl(file, cmd, argp);
- /* i2c */
- case I2C_FUNCS:
- return w_long(file, cmd, argp);
- case I2C_RDWR:
- return do_i2c_rdwr_ioctl(file, cmd, argp);
- case I2C_SMBUS:
- return do_i2c_smbus_ioctl(file, cmd, argp);
/* Not implemented in the native kernel */
case RTC_IRQP_READ32:
case RTC_IRQP_SET32:
case FICLONE:
case FICLONERANGE:
case FIDEDUPERANGE:
+ case FS_IOC_FIEMAP:
goto do_ioctl;
case FIBMAP:
+// SPDX-License-Identifier: GPL-2.0
#include <linux/syscalls.h>
#include <linux/slab.h>
#include <linux/fs.h>
return retval;
}
- long do_handle_open(int mountdirfd,
- struct file_handle __user *ufh, int open_flag)
+ static long do_handle_open(int mountdirfd, struct file_handle __user *ufh,
+ int open_flag)
{
long retval = 0;
struct path path;
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/file.c
*
{
struct fdtable *fdt;
- might_sleep();
rcu_read_lock_sched();
- while (unlikely(files->resize_in_progress)) {
+ if (unlikely(files->resize_in_progress)) {
rcu_read_unlock_sched();
- wait_event(files->resize_wait, !files->resize_in_progress);
- rcu_read_lock_sched();
+ spin_lock(&files->file_lock);
+ fdt = files_fdtable(files);
+ BUG_ON(fdt->fd[fd] != NULL);
+ rcu_assign_pointer(fdt->fd[fd], file);
+ spin_unlock(&files->file_lock);
+ return;
}
/* coupled with smp_wmb() in expand_fdtable() */
smp_rmb();
if (!file)
goto out_unlock;
rcu_assign_pointer(fdt->fd[fd], NULL);
- __clear_close_on_exec(fd, fdt);
__put_unused_fd(files, fd);
spin_unlock(&files->file_lock);
return filp_close(file, files);
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/namei.c
*
/* Given that we're not holding a lock here, we retain the value in a
* local variable for each dentry as we look at it so that we don't see
* the components of that value change under us */
- while (managed = ACCESS_ONCE(path->dentry->d_flags),
+ while (managed = READ_ONCE(path->dentry->d_flags),
managed &= DCACHE_MANAGED_DENTRY,
unlikely(managed != 0)) {
/* Allow the filesystem to manage the transit without i_mutex
unsigned managed;
int ret;
- while (managed = ACCESS_ONCE(path->dentry->d_flags),
+ while (managed = READ_ONCE(path->dentry->d_flags),
unlikely(managed & DCACHE_MANAGED_DENTRY)) {
/* Allow the filesystem to manage the transit without i_mutex
* being held.
goto out;
child = vfs_tmpfile(path.dentry, op->mode, op->open_flag);
error = PTR_ERR(child);
- if (unlikely(IS_ERR(child)))
+ if (IS_ERR(child))
goto out2;
dput(path.dentry);
path.dentry = child;
* writeout happening, and we don't want to prevent access to the directory
* while waiting on the I/O.
*/
-static long do_unlinkat(int dfd, const char __user *pathname)
+long do_unlinkat(int dfd, struct filename *name)
{
int error;
- struct filename *name;
struct dentry *dentry;
struct path path;
struct qstr last;
struct inode *delegated_inode = NULL;
unsigned int lookup_flags = 0;
retry:
- name = filename_parentat(dfd, getname(pathname), lookup_flags,
- &path, &last, &type);
+ name = filename_parentat(dfd, name, lookup_flags, &path, &last, &type);
if (IS_ERR(name))
return PTR_ERR(name);
mnt_drop_write(path.mnt);
exit1:
path_put(&path);
- putname(name);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
inode = NULL;
goto retry;
}
+ putname(name);
return error;
slashes:
if (flag & AT_REMOVEDIR)
return do_rmdir(dfd, pathname);
- return do_unlinkat(dfd, pathname);
+ return do_unlinkat(dfd, getname(pathname));
}
SYSCALL_DEFINE1(unlink, const char __user *, pathname)
{
- return do_unlinkat(AT_FDCWD, pathname);
+ return do_unlinkat(AT_FDCWD, getname(pathname));
}
int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
static int pstore_new_entry;
static void pstore_timefunc(unsigned long);
-static DEFINE_TIMER(pstore_timer, pstore_timefunc, 0, 0);
+static DEFINE_TIMER(pstore_timer, pstore_timefunc);
static void pstore_dowork(struct work_struct *);
static DECLARE_WORK(pstore_work, pstore_dowork);
record->psi = psinfo;
/* Report zeroed timestamp if called before timekeeping has resumed. */
- if (__getnstimeofday(&record->time)) {
- record->time.tv_sec = 0;
- record->time.tv_nsec = 0;
- }
+ record->time = ns_to_timespec(ktime_get_real_fast_ns());
}
/*
return -EINVAL;
record->buf = memdup_user(buf, record->size);
- if (unlikely(IS_ERR(record->buf))) {
+ if (IS_ERR(record->buf)) {
ret = PTR_ERR(record->buf);
goto out;
}
+// SPDX-License-Identifier: GPL-2.0
#include <linux/syscalls.h>
#include <linux/export.h>
#include <linux/fs.h>
return error;
}
- int vfs_ustat(dev_t dev, struct kstatfs *sbuf)
+ static int vfs_ustat(dev_t dev, struct kstatfs *sbuf)
{
struct super_block *s = user_get_super(dev);
int err;
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/super.c
*
schedule_work(&s->destroy_work);
}
- /**
- * destroy_super - frees a superblock
- * @s: superblock to free
- *
- * Frees a superblock.
- */
- static void destroy_super(struct super_block *s)
+ /* Free a superblock that has never been seen by anyone */
+ static void destroy_unused_super(struct super_block *s)
{
+ if (!s)
+ return;
+ up_write(&s->s_umount);
list_lru_destroy(&s->s_dentry_lru);
list_lru_destroy(&s->s_inode_lru);
security_sb_free(s);
- WARN_ON(!list_empty(&s->s_mounts));
put_user_ns(s->s_user_ns);
kfree(s->s_subtype);
- call_rcu(&s->rcu, destroy_super_rcu);
+ /* no delays needed */
+ destroy_super_work(&s->destroy_work);
}
/**
return s;
fail:
- destroy_super(s);
+ destroy_unused_super(s);
return NULL;
}
/*
* Drop a superblock's refcount. The caller must hold sb_lock.
*/
- static void __put_super(struct super_block *sb)
+ static void __put_super(struct super_block *s)
{
- if (!--sb->s_count) {
- list_del_init(&sb->s_list);
- destroy_super(sb);
+ if (!--s->s_count) {
+ list_del_init(&s->s_list);
+ WARN_ON(s->s_dentry_lru.node);
+ WARN_ON(s->s_inode_lru.node);
+ WARN_ON(!list_empty(&s->s_mounts));
+ security_sb_free(s);
+ put_user_ns(s->s_user_ns);
+ kfree(s->s_subtype);
+ call_rcu(&s->rcu, destroy_super_rcu);
}
}
continue;
if (user_ns != old->s_user_ns) {
spin_unlock(&sb_lock);
- if (s) {
- up_write(&s->s_umount);
- destroy_super(s);
- }
+ destroy_unused_super(s);
return ERR_PTR(-EBUSY);
}
if (!grab_super(old))
goto retry;
- if (s) {
- up_write(&s->s_umount);
- destroy_super(s);
- s = NULL;
- }
+ destroy_unused_super(s);
return old;
}
}
err = set(s, data);
if (err) {
spin_unlock(&sb_lock);
- up_write(&s->s_umount);
- destroy_super(s);
+ destroy_unused_super(s);
return ERR_PTR(err);
}
s->s_type = type;
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* BSD Process Accounting for Linux - Definitions
*
#ifdef CONFIG_BSD_PROCESS_ACCT
- struct vfsmount;
- struct super_block;
- struct pacct_struct;
struct pid_namespace;
extern int acct_parm[]; /* for sysctl */
extern void acct_collect(long exitcode, int group_dead);
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_FS_H
#define _LINUX_FS_H
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
+ unsigned long mmap_supported_flags;
int (*open) (struct inode *, struct file *);
int (*flush) (struct file *, fl_owner_t id);
int (*release) (struct inode *, struct file *);
#else
#define S_DAX 0 /* Make all the DAX code disappear */
#endif
+#define S_ENCRYPTED 16384 /* Encrypted file (using fs/crypto/) */
/*
* Note that nosuid etc flags are inode-specific: setting some file-system
#define IS_AUTOMOUNT(inode) ((inode)->i_flags & S_AUTOMOUNT)
#define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC)
#define IS_DAX(inode) ((inode)->i_flags & S_DAX)
+#define IS_ENCRYPTED(inode) ((inode)->i_flags & S_ENCRYPTED)
#define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \
(inode)->i_rdev == WHITEOUT_DEV)
extern struct dentry *mount_ns(struct file_system_type *fs_type,
int flags, void *data, void *ns, struct user_namespace *user_ns,
int (*fill_super)(struct super_block *, void *, int));
+ #ifdef CONFIG_BLOCK
extern struct dentry *mount_bdev(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
int (*fill_super)(struct super_block *, void *, int));
+ #else
+ static inline struct dentry *mount_bdev(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data,
+ int (*fill_super)(struct super_block *, void *, int))
+ {
+ return ERR_PTR(-ENODEV);
+ }
+ #endif
extern struct dentry *mount_single(struct file_system_type *fs_type,
int flags, void *data,
int (*fill_super)(struct super_block *, void *, int));
int (*fill_super)(struct super_block *, void *, int));
extern struct dentry *mount_subtree(struct vfsmount *mnt, const char *path);
void generic_shutdown_super(struct super_block *sb);
+ #ifdef CONFIG_BLOCK
void kill_block_super(struct super_block *sb);
+ #else
+ static inline void kill_block_super(struct super_block *sb)
+ {
+ BUG();
+ }
+ #endif
void kill_anon_super(struct super_block *sb);
void kill_litter_super(struct super_block *sb);
void deactivate_super(struct super_block *sb);
extern int vfs_statfs(const struct path *, struct kstatfs *);
extern int user_statfs(const char __user *, struct kstatfs *);
extern int fd_statfs(int, struct kstatfs *);
- extern int vfs_ustat(dev_t, struct kstatfs *);
extern int freeze_super(struct super_block *super);
extern int thaw_super(struct super_block *super);
extern bool our_mnt(struct vfsmount *mnt);
id(KEXEC_IMAGE, kexec-image) \
id(KEXEC_INITRAMFS, kexec-initramfs) \
id(POLICY, security-policy) \
+ id(X509_CERTIFICATE, x509-certificate) \
id(MAX_ID, )
#define __fid_enumify(ENUM, dummy) READING_ ## ENUM,
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/ipc/msg.c
* Copyright (C) 1992 Krishna Balasubramanian
{
memset(out, 0, sizeof(*out));
if (version == IPC_64) {
- struct compat_msqid64_ds *p = buf;
+ struct compat_msqid64_ds __user *p = buf;
if (get_compat_ipc64_perm(&out->msg_perm, &p->msg_perm))
return -EFAULT;
if (get_user(out->msg_qbytes, &p->msg_qbytes))
return -EFAULT;
} else {
- struct compat_msqid_ds *p = buf;
+ struct compat_msqid_ds __user *p = buf;
if (get_compat_ipc_perm(&out->msg_perm, &p->msg_perm))
return -EFAULT;
if (get_user(out->msg_qbytes, &p->msg_qbytes))
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/ipc/sem.c
* Copyright (C) 1992 Krishna Balasubramanian
{
memset(out, 0, sizeof(*out));
if (version == IPC_64) {
- struct compat_semid64_ds *p = buf;
+ struct compat_semid64_ds __user *p = buf;
return get_compat_ipc64_perm(&out->sem_perm, &p->sem_perm);
} else {
- struct compat_semid_ds *p = buf;
+ struct compat_semid_ds __user *p = buf;
return get_compat_ipc_perm(&out->sem_perm, &p->sem_perm);
}
}
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/ipc/shm.c
* Copyright (C) 1992, 1993 Krishna Balasubramanian
info.shm_swp = ip->shm_swp;
info.swap_attempts = ip->swap_attempts;
info.swap_successes = ip->swap_successes;
- return copy_to_user(up, &info, sizeof(info));
+ return copy_to_user(uip, &info, sizeof(info));
}
static int copy_compat_shmid_to_user(void __user *buf, struct shmid64_ds *in,
{
memset(out, 0, sizeof(*out));
if (version == IPC_64) {
- struct compat_shmid64_ds *p = buf;
+ struct compat_shmid64_ds __user *p = buf;
return get_compat_ipc64_perm(&out->shm_perm, &p->shm_perm);
} else {
- struct compat_shmid_ds *p = buf;
+ struct compat_shmid_ds __user *p = buf;
return get_compat_ipc_perm(&out->shm_perm, &p->shm_perm);
}
}
err = shmctl_stat(ns, shmid, cmd, &sem64);
if (err < 0)
return err;
- if (copy_compat_shmid_to_user(&sem64, uptr, version))
+ if (copy_compat_shmid_to_user(uptr, &sem64, version))
err = -EFAULT;
return err;
+// SPDX-License-Identifier: GPL-2.0
/*
* sys_ipc() is the old de-multiplexer for the SysV IPC calls.
*
COMPAT_SHMLBA);
if (err < 0)
return err;
- return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
+ return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third));
}
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
projects / linux-2.6-block.git / commitdiff