/* draw the bar and the percentage following it */
void draw_window()
{
    std::string bat_percent_string;
    int bat_percent;
    int pair_n;

    bat_percent_string = get_bat_percent();
    bat_percent = std::stoi(bat_percent_string);
    erase();
    draw_battery(bat_percent);
    printw(bat_percent_string.c_str());
    addch('%');
    if (!battery_charging)
        // add a full block of red color that scrolls down from the last full bar
        // to the first full bar, if the battery is discharging
    {
        for (int i = full_bars - 2; i >= 0; i--)
        {
            pair_n = (bat_percent == 100 ? cyan : red);
            // if the battery is full, the block that scrolls down is
            // cyan. Otherwise it is red
            erase();
            draw_battery(bat_percent);
            printw(bat_percent_string.c_str());
            addch('%');
            mvdelch(0,i);
            attron(COLOR_PAIR(pair_n));
            add_wchar(block_solid);
            attroff(COLOR_PAIR(pair_n));
            refresh();
            usleep(sleep_time / full_bars - 1);
        }
    }
    else
        // blink the last full bar and one over if the battery is charging
    {
        for (int i = 0; i < 10; i++)
        {
            int color = (i % 2 == 0 ? white : cyan);
            int last_bar = full_bars;
            if (last_bar >= bars - 1)
            {
                last_bar --;
            }
            erase();
            draw_battery(bat_percent);
            printw(bat_percent_string.c_str());
            addch('%');
            mvdelch(0, last_bar);
            attron(COLOR_PAIR(color));
            add_wchar(block_solid);
            attroff(COLOR_PAIR(color));
            refresh();
            usleep(sleep_time / 10);
        }
    }
}
Example #2
0
void			add_conv_wchar(t_string *t, wchar_t c)
{
	load(t);
	if ((t->space -= 1) < 0)
		return (add_wchar(t, c));
	if (t->left == 0)
		fill_character(t, t->pad);
	add_wchar(t, c);
	if (t->left)
		fill_character(t, t->pad);
}
Example #3
0
ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;

	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		file_start_write(file);
		if (file->f_op->write)
			ret = file->f_op->write(file, buf, count, pos);
		else
			ret = do_sync_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
		file_end_write(file);
	}

	return ret;
}
Example #4
0
SYSCALL_DEFINE5(pwritev, unsigned long, fd, const struct iovec __user *, vec,
		unsigned long, vlen, unsigned long, pos_l, unsigned long, pos_h)
{
	loff_t pos = pos_from_hilo(pos_h, pos_l);
	struct file *file;
	ssize_t ret = -EBADF;
	int fput_needed;

	if (pos < 0)
		return -EINVAL;

	if (scribe_track_next_file_write_interruptible())
		return -ENOMEM;

	file = fget_light(fd, &fput_needed);
	if (file) {
		ret = -ESPIPE;
		if (file->f_mode & FMODE_PWRITE)
			ret = vfs_writev(file, vec, vlen, &pos);
		fput_light(file, fput_needed);
	} else if (scribe_was_file_locking_interrupted())
		ret = -ERESTARTSYS;

	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #5
0
ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;

	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!(file->f_mode & FMODE_CAN_WRITE))
		return -EINVAL;
	if (unlikely(!access_ok(buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (!ret) {
		if (count > MAX_RW_COUNT)
			count =  MAX_RW_COUNT;
		file_start_write(file);
		ret = __vfs_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
		file_end_write(file);
	}

	return ret;
}
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	kiocb.ki_left = len;
	kiocb.ki_nbytes = len;

	for (;;) {
		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
		if (ret != -EIOCBRETRY)
			break;
		wait_on_retry_sync_kiocb(&kiocb);
	}

	if (-EIOCBQUEUED == ret)
		ret = wait_on_sync_kiocb(&kiocb);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;
	struct super_block *sb = file->f_path.dentry->d_sb;

	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		if (file->f_op->write)
			ret = file->f_op->write(file, buf, count, pos);
		else
			ret = do_sync_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
	}

	if (sb && (!strcmp(sb->s_type->name, "ext4")
		|| !strcmp(sb->s_type->name, "fuse")
		|| !strcmp(sb->s_type->name, "vfat")))
		print_io_dump(WRITE, count);

	return ret;
}
Example #7
0
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	kiocb.ki_left = len;

	for (;;) {
		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
		if (ret != -EIOCBRETRY)
			break;
		wait_on_retry_sync_kiocb(&kiocb);
	}

	if (-EIOCBQUEUED == ret)
		ret = wait_on_sync_kiocb(&kiocb);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;

	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		ret = security_file_permission (file, MAY_WRITE);
		if (!ret) {
			if (file->f_op->write)
				ret = file->f_op->write(file, buf, count, pos);
			else
				ret = do_sync_write(file, buf, count, pos);
			if (ret > 0) {
				fsnotify_modify(file->f_path.dentry);
				add_wchar(current, ret);
			}
			inc_syscw(current);
			security_file_rw_release(file);
		}
	}

	return ret;
}
Example #8
0
/*
 * copy_file_range() differs from regular file read and write in that it
 * specifically allows return partial success.  When it does so is up to
 * the copy_file_range method.
 */
ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
			    struct file *file_out, loff_t pos_out,
			    size_t len, unsigned int flags)
{
	struct inode *inode_in = file_inode(file_in);
	struct inode *inode_out = file_inode(file_out);
	ssize_t ret;

	if (flags != 0)
		return -EINVAL;

	ret = rw_verify_area(READ, file_in, &pos_in, len);
	if (unlikely(ret))
		return ret;

	ret = rw_verify_area(WRITE, file_out, &pos_out, len);
	if (unlikely(ret))
		return ret;

	if (!(file_in->f_mode & FMODE_READ) ||
	    !(file_out->f_mode & FMODE_WRITE) ||
	    (file_out->f_flags & O_APPEND))
		return -EBADF;

	/* this could be relaxed once a method supports cross-fs copies */
	if (inode_in->i_sb != inode_out->i_sb)
		return -EXDEV;

	if (len == 0)
		return 0;

	ret = mnt_want_write_file(file_out);
	if (ret)
		return ret;

	ret = -EOPNOTSUPP;
	if (file_out->f_op->copy_file_range)
		ret = file_out->f_op->copy_file_range(file_in, pos_in, file_out,
						      pos_out, len, flags);
	if (ret == -EOPNOTSUPP)
		ret = do_splice_direct(file_in, &pos_in, file_out, &pos_out,
				len > MAX_RW_COUNT ? MAX_RW_COUNT : len, 0);

	if (ret > 0) {
		fsnotify_access(file_in);
		add_rchar(current, ret);
		fsnotify_modify(file_out);
		add_wchar(current, ret);
	}
	inc_syscr(current);
	inc_syscw(current);

	mnt_drop_write_file(file_out);

	return ret;
}
void draw_battery(int percent)
{
    double decimal = ((double)percent / 100) * bars;
    full_bars = decimal;
    bool full_and_charging = percent == 100 && battery_charging;
    /* print blocks to make up the bar */
    int pair_n = (battery_charging|| full_and_charging ? green : yellow);
    // if the battery is full or charging, the bar is green.
    // otherwise it is yellow
    attron(COLOR_PAIR(pair_n));
    for (int i = 0; i < full_bars; i++)
    {
        add_wchar(block_solid);
    }
    for (int i = 0; i < (bars - full_bars); i++)
    {
        add_wchar(block_shaded);
    }
    attroff(COLOR_PAIR(pair_n));
    printw(" ");
}
Example #10
0
static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	struct iov_iter iter;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	iov_iter_init(&iter, WRITE, &iov, 1, len);

	ret = filp->f_op->write_iter(&kiocb, &iter);
	BUG_ON(ret == -EIOCBQUEUED);
	if (ret > 0)
		*ppos = kiocb.ki_pos;
	return ret;
}

ssize_t __vfs_write(struct file *file, const char __user *p, size_t count,
		    loff_t *pos)
{
	if (file->f_op->write)
		return file->f_op->write(file, p, count, pos);
	else if (file->f_op->write_iter)
		return new_sync_write(file, p, count, pos);
	else
		return -EINVAL;
}
EXPORT_SYMBOL(__vfs_write);

ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)
{
	mm_segment_t old_fs;
	const char __user *p;
	ssize_t ret;

	if (!(file->f_mode & FMODE_CAN_WRITE))
		return -EINVAL;

	old_fs = get_fs();
	set_fs(get_ds());
	p = (__force const char __user *)buf;
	if (count > MAX_RW_COUNT)
		count =  MAX_RW_COUNT;
	ret = __vfs_write(file, p, count, pos);
	set_fs(old_fs);
	if (ret > 0) {
		fsnotify_modify(file);
		add_wchar(current, ret);
	}
	inc_syscw(current);
	return ret;
}
Example #11
0
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	kiocb.ki_left = len;
	kiocb.ki_nbytes = len;

	for (;;) {
		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
		if (ret != -EIOCBRETRY)
			break;
		wait_on_retry_sync_kiocb(&kiocb);
	}

	if (-EIOCBQUEUED == ret)
		ret = wait_on_sync_kiocb(&kiocb);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)
{
	mm_segment_t old_fs;
	const char __user *p;
	ssize_t ret;

	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;

	old_fs = get_fs();
	set_fs(get_ds());
	p = (__force const char __user *)buf;
	if (count > MAX_RW_COUNT)
		count =  MAX_RW_COUNT;
	if (file->f_op->write)
		ret = file->f_op->write(file, p, count, pos);
	else
		ret = do_sync_write(file, p, count, pos);
	set_fs(old_fs);
	if (ret > 0) {
		fsnotify_modify(file);
		add_wchar(current, ret);
	}
	inc_syscw(current);
	return ret;
}
Example #12
0
SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,
		unsigned long, vlen)
{
	struct fd f = fdget(fd);
	ssize_t ret = -EBADF;

	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)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #13
0
static ssize_t do_writev(unsigned long fd, const struct iovec __user *vec,
			 unsigned long vlen, int flags)
{
	struct fd f = fdget_pos(fd);
	ssize_t ret = -EBADF;

	if (f.file) {
		loff_t pos = file_pos_read(f.file);
		ret = vfs_writev(f.file, vec, vlen, &pos, flags);
		if (ret >= 0)
			file_pos_write(f.file, pos);
		fdput_pos(f);
	}

	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #14
0
SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,
		unsigned long, vlen)
{
	struct file *file;
	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 (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #15
0
static size_t compat_writev(struct file *file,
			    const struct compat_iovec __user *vec,
			    unsigned long vlen, loff_t *pos)
{
	ssize_t ret = -EBADF;

	if (!(file->f_mode & FMODE_WRITE))
		goto out;

	ret = -EINVAL;
	if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
		goto out;

	ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos);

out:
	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #16
0
static size_t compat_writev(struct file *file,
			    const struct compat_iovec __user *vec,
			    unsigned long vlen, loff_t *pos, rwf_t flags)
{
	struct iovec iovstack[UIO_FASTIOV];
	struct iovec *iov = iovstack;
	struct iov_iter iter;
	ssize_t ret;

	ret = compat_import_iovec(WRITE, vec, vlen, UIO_FASTIOV, &iov, &iter);
	if (ret >= 0) {
		file_start_write(file);
		ret = do_iter_write(file, &iter, pos, flags);
		file_end_write(file);
		kfree(iov);
	}
	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #17
0
static ssize_t do_pwritev(unsigned long fd, const struct iovec __user *vec,
			  unsigned long vlen, loff_t pos, int flags)
{
	struct fd f;
	ssize_t ret = -EBADF;

	if (pos < 0)
		return -EINVAL;

	f = fdget(fd);
	if (f.file) {
		ret = -ESPIPE;
		if (f.file->f_mode & FMODE_PWRITE)
			ret = vfs_writev(f.file, vec, vlen, &pos, flags);
		fdput(f);
	}

	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #18
0
SYSCALL_DEFINE5(pwritev, unsigned long, fd, const struct iovec __user *, vec,
		unsigned long, vlen, unsigned long, pos_l, unsigned long, pos_h)
{
	loff_t pos = pos_from_hilo(pos_h, pos_l);
	struct fd f;
	ssize_t ret = -EBADF;

	if (pos < 0)
		return -EINVAL;

	f = fdget(fd);
	if (f.file) {
		ret = -ESPIPE;
		if (f.file->f_mode & FMODE_PWRITE)
			ret = vfs_writev(f.file, vec, vlen, &pos);
		fdput(f);
	}

	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #19
0
//No permission check, write to file
ssize_t vfs_forcewrite(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;
	
	//Open will fail when the file is read only
	//Rather than rewriting sys_open to allow opening a write on a read 
	//only file just ignore the file mode here
	//if (!(file->f_mode & FMODE_WRITE))
		//return -EBADF;
		
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		//This line checks the file permissions for write
		//Remove it, set ret to zero to continue with write
		//ret = security_file_permission (file, MAY_WRITE);
		ret = 0;
		if (!ret) {
			if (file->f_op->write)
				ret = file->f_op->write(file, buf, count, pos);
			else
				ret = do_sync_write(file, buf, count, pos);
			if (ret > 0) {
				fsnotify_modify(file->f_path.dentry);
				add_wchar(current, ret);
			}
			inc_syscw(current);
		}
	}

	return ret;
}
Example #20
0
SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,
		unsigned long, vlen)
{
	struct file *file;
	ssize_t ret = -EBADF;
	int fput_needed;

	if (scribe_track_next_file_write_interruptible())
		return -ENOMEM;

	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);
	} else if (scribe_was_file_locking_interrupted())
		ret = -ERESTARTSYS;

	if (ret > 0)
		add_wchar(current, ret);
	inc_syscw(current);
	return ret;
}
Example #21
0
/*
 * copy_file_range() differs from regular file read and write in that it
 * specifically allows return partial success.  When it does so is up to
 * the copy_file_range method.
 */
ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
			    struct file *file_out, loff_t pos_out,
			    size_t len, unsigned int flags)
{
	struct inode *inode_in = file_inode(file_in);
	struct inode *inode_out = file_inode(file_out);
	ssize_t ret;

	if (flags != 0)
		return -EINVAL;

	if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode))
		return -EISDIR;
	if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode))
		return -EINVAL;

	ret = rw_verify_area(READ, file_in, &pos_in, len);
	if (unlikely(ret))
		return ret;

	ret = rw_verify_area(WRITE, file_out, &pos_out, len);
	if (unlikely(ret))
		return ret;

	if (!(file_in->f_mode & FMODE_READ) ||
	    !(file_out->f_mode & FMODE_WRITE) ||
	    (file_out->f_flags & O_APPEND))
		return -EBADF;

	/* this could be relaxed once a method supports cross-fs copies */
	if (inode_in->i_sb != inode_out->i_sb)
		return -EXDEV;

	if (len == 0)
		return 0;

	file_start_write(file_out);

	/*
	 * Try cloning first, this is supported by more file systems, and
	 * more efficient if both clone and copy are supported (e.g. NFS).
	 */
	if (file_in->f_op->remap_file_range) {
		loff_t cloned;

		cloned = file_in->f_op->remap_file_range(file_in, pos_in,
				file_out, pos_out,
				min_t(loff_t, MAX_RW_COUNT, len),
				REMAP_FILE_CAN_SHORTEN);
		if (cloned > 0) {
			ret = cloned;
			goto done;
		}
	}

	if (file_out->f_op->copy_file_range) {
		ret = file_out->f_op->copy_file_range(file_in, pos_in, file_out,
						      pos_out, len, flags);
		if (ret != -EOPNOTSUPP)
			goto done;
	}

	ret = do_splice_direct(file_in, &pos_in, file_out, &pos_out,
			len > MAX_RW_COUNT ? MAX_RW_COUNT : len, 0);

done:
	if (ret > 0) {
		fsnotify_access(file_in);
		add_rchar(current, ret);
		fsnotify_modify(file_out);
		add_wchar(current, ret);
	}

	inc_syscr(current);
	inc_syscw(current);

	file_end_write(file_out);

	return ret;
}
Example #22
0
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	kiocb.ki_left = len;
	kiocb.ki_nbytes = len;

	for (;;) {
		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
		if (ret != -EIOCBRETRY)
			break;
		wait_on_retry_sync_kiocb(&kiocb);
	}

	if (-EIOCBQUEUED == ret)
		ret = wait_on_sync_kiocb(&kiocb);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;
	struct task_struct *tsk = current;
	struct kstatfs stat;
	static long long store = 0;
	unsigned char num = 0;
	struct mount *mount_data;
	char *file_list[10] = {"ccci_fsd", NULL};
#if IO_LOGGER_ENABLE
	unsigned long long time1 = 0,timeoffset = 0;
	bool add_trace_e = false;
	char path_c[20]={0}; 
	char *path = NULL;
	const char *mount_point = NULL;
#endif	
	mount_data = real_mount(file->f_path.mnt);
	if (!memcmp(mount_data->mnt_mountpoint->d_name.name, "data", 5)) {
		//printk(KERN_ERR "write data detect %s",file->f_path.dentry->d_name.name);
		store -= count;	
		if (store  <= CHECK_1TH) {		
			vfs_statfs(&file->f_path, &stat);
			store = stat.f_bfree * stat.f_bsize;
			if (store <= CHECK_2TH) {
				store -= count;
				for (; file_list[num] != NULL; num ++) {
					if (!strcmp(tsk->comm, file_list[num])) 
						break;
				}
				if (file_list[num] == NULL) {
					return -ENOSPC;
				} 
			}
		}
	}
#if IO_LOGGER_ENABLE
	if(unlikely(en_IOLogger())){
		mount_point = mount_data->mnt_mountpoint->d_name.name;
		if (mount_point){
			if((!memcmp(mount_point,"data",4))||(!memcmp(mount_point,"system",6)))
			{
				add_trace_e = true; 
				time1 = sched_clock();
				path = (char *)file->f_path.dentry->d_name.name;
				if(strlen(path)>=16){			
					memcpy(path_c,path,16);
					path = (char *)path_c;
				}
				AddIOTrace(IO_LOGGER_MSG_VFS_INTFS,vfs_write,path,count);		
			}
		}
	}
#endif

#ifdef MTK_IO_PERFORMANCE_DEBUG 
	if (g_mtk_mmc_clear == 0){
		//memset(g_req_write_buf, 0, 8*4000*30);
		//memset(g_mmcqd_buf, 0, 8*400*300);
		g_dbg_write_count = 0;
		g_mtk_mmc_clear = 1;
	}
	if (('l' == *(current->comm)) && ('m' == *(current->comm + 1)) && ('d' == *(current->comm + 2)) && ('d' == *(current->comm + 3))){
		g_dbg_write_count++;
		g_req_write_count[g_dbg_write_count] = count;
		g_req_write_buf[g_dbg_write_count][0] = sched_clock(); 
	}	
#endif

	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		if (file->f_op->write)
			ret = file->f_op->write(file, buf, count, pos);
		else
			ret = do_sync_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
	}
#ifdef MTK_IO_PERFORMANCE_DEBUG   
	if (('l' == *(current->comm)) && ('m' == *(current->comm + 1)) && ('d' == *(current->comm + 2)) && ('d' == *(current->comm + 3))){
		g_req_write_buf[g_dbg_write_count][14] = sched_clock(); 
	}	
#endif
#if IO_LOGGER_ENABLE
			if(unlikely(en_IOLogger()) && add_trace_e){
				timeoffset = sched_clock() - time1;
				add_trace_e = false;
				if(BEYOND_TRACE_LOG_TIME(timeoffset))
				{
					 AddIOTrace(IO_LOGGER_MSG_VFS_INTFS_END,vfs_write,path,ret,timeoffset);	
					 if(BEYOND_DUMP_LOG_TIME(timeoffset))
						DumpIOTrace(timeoffset);
					
				}
			}
#endif
	return ret;
}
Example #23
0
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	kiocb.ki_left = len;
	kiocb.ki_nbytes = len;

	for (;;) {
		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
		if (ret != -EIOCBRETRY)
			break;
		wait_on_retry_sync_kiocb(&kiocb);
	}

	if (-EIOCBQUEUED == ret)
		ret = wait_on_sync_kiocb(&kiocb);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;

	if (infocoll_data.fs == file->f_vfsmnt->mnt_root) {
		char data[40] = {0};
		loff_t offset = pos ? *pos : 0;
		ulong inode = file->f_dentry->d_inode->i_ino;
		ulong size = file->f_dentry->d_inode->i_size;

		infocoll_write_to_buff(data, inode);	
		infocoll_write_to_buff(data + 8, count);	
		infocoll_write_to_buff(data + 16, offset);	
		infocoll_write_to_buff(data + 24, size);	
	
		infocoll_send(INFOCOLL_WRITE, data, NLMSG_DONE);
	}


	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		if (file->f_op->write)
			ret = file->f_op->write(file, buf, count, pos);
		else
			ret = do_sync_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
	}

	return ret;
}
Example #24
0
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;
	loff_t pos;
	ssize_t retval;
	int fput_needed_in, fput_needed_out;

	/*
	 * Get input file, and verify that it is ok..
	 */
	retval = -EBADF;
	in_file = fget_light(in_fd, &fput_needed_in);
	if (!in_file)
		goto out;
	if (!(in_file->f_mode & FMODE_READ))
		goto fput_in;
	retval = -EINVAL;
	in_inode = in_file->f_path.dentry->d_inode;
	if (!in_inode)
		goto fput_in;
	if (!in_file->f_op || !in_file->f_op->sendfile)
		goto fput_in;
	retval = -ESPIPE;
	if (!ppos)
		ppos = &in_file->f_pos;
	else
		if (!(in_file->f_mode & FMODE_PREAD))
			goto fput_in;
	retval = rw_verify_area(READ, in_file, ppos, count);
	if (retval < 0)
		goto fput_in;
	count = retval;

	retval = security_file_permission (in_file, MAY_READ);
	if (retval)
		goto fput_in;

	/*
	 * Get output file, and verify that it is ok..
	 */
	retval = -EBADF;
	out_file = fget_light(out_fd, &fput_needed_out);
	if (!out_file)
		goto fput_in_sec;
	if (!(out_file->f_mode & FMODE_WRITE))
		goto fput_out;
	retval = -EINVAL;
	if (!out_file->f_op || !out_file->f_op->sendpage)
		goto fput_out;
	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;

	retval = security_file_permission (out_file, MAY_WRITE);
	if (retval)
		goto fput_out;

	if (!max)
		max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes);

	pos = *ppos;
	retval = -EINVAL;
	if (unlikely(pos < 0))
		goto fput_out_sec;
	if (unlikely(pos + count > max)) {
		retval = -EOVERFLOW;
		if (pos >= max)
			goto fput_out;
		count = max - pos;
	}

	retval = in_file->f_op->sendfile(in_file, ppos, count, file_send_actor, out_file);

	if (retval > 0) {
		add_rchar(current, retval);
		add_wchar(current, retval);
	}

	inc_syscr(current);
	inc_syscw(current);
	if (*ppos > max)
		retval = -EOVERFLOW;

fput_out_sec:
	security_file_rw_release(out_file);
fput_out:
	fput_light(out_file, fput_needed_out);
fput_in_sec:
	security_file_rw_release(in_file);
fput_in:
	fput_light(in_file, fput_needed_in);
out:
	return retval;
}
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;
	loff_t pos;
	ssize_t retval;
	int fput_needed_in, fput_needed_out, fl;

	retval = -EBADF;
	in_file = fget_light(in_fd, &fput_needed_in);
	if (!in_file)
		goto out;
	if (!(in_file->f_mode & FMODE_READ))
		goto fput_in;
	retval = -ESPIPE;
	if (!ppos)
		ppos = &in_file->f_pos;
	else
		if (!(in_file->f_mode & FMODE_PREAD))
			goto fput_in;
	retval = rw_verify_area(READ, in_file, ppos, count);
	if (retval < 0)
		goto fput_in;
	count = retval;

	retval = -EBADF;
	out_file = fget_light(out_fd, &fput_needed_out);
	if (!out_file)
		goto fput_in;
	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);
	if (retval < 0)
		goto fput_out;
	count = retval;

	if (!max)
		max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes);

	pos = *ppos;
	if (unlikely(pos + count > max)) {
		retval = -EOVERFLOW;
		if (pos >= max)
			goto fput_out;
		count = max - pos;
	}

	fl = 0;
#if 0
	if (in_file->f_flags & O_NONBLOCK)
		fl = SPLICE_F_NONBLOCK;
#endif
	retval = do_splice_direct(in_file, ppos, out_file, count, fl);

	if (retval > 0) {
		add_rchar(current, retval);
		add_wchar(current, retval);
	}

	inc_syscr(current);
	inc_syscw(current);
	if (*ppos > max)
		retval = -EOVERFLOW;

fput_out:
	fput_light(out_file, fput_needed_out);
fput_in:
	fput_light(in_file, fput_needed_in);
out:
	return retval;
}
Example #26
0
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;

	ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
	BUG_ON(ret == -EIOCBQUEUED);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	struct iov_iter iter;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	iov_iter_init(&iter, WRITE, &iov, 1, len);

	ret = filp->f_op->write_iter(&kiocb, &iter);
	BUG_ON(ret == -EIOCBQUEUED);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(new_sync_write);

ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)
{
	mm_segment_t old_fs;
	const char __user *p;
	ssize_t ret;

	if (!(file->f_mode & FMODE_CAN_WRITE))
		return -EINVAL;

	old_fs = get_fs();
	set_fs(get_ds());
	p = (__force const char __user *)buf;
	if (count > MAX_RW_COUNT)
		count =  MAX_RW_COUNT;
	if (file->f_op->write)
		ret = file->f_op->write(file, p, count, pos);
	else if (file->f_op->aio_write)
		ret = do_sync_write(file, p, count, pos);
	else
		ret = new_sync_write(file, p, count, pos);
	set_fs(old_fs);
	if (ret > 0) {
		fsnotify_modify(file);
		add_wchar(current, ret);
	}
	inc_syscw(current);
	return ret;
}

EXPORT_SYMBOL(__kernel_write);

ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;

	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!(file->f_mode & FMODE_CAN_WRITE))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		file_start_write(file);
		if (file->f_op->write)
			ret = file->f_op->write(file, buf, count, pos);
		else if (file->f_op->aio_write)
			ret = do_sync_write(file, buf, count, pos);
		else
			ret = new_sync_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
		file_end_write(file);
	}

	return ret;
}
Example #27
0
static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
			   size_t count, loff_t max)
{
	struct fd in, out;
	struct inode *in_inode, *out_inode;
	loff_t pos;
	ssize_t retval;
	int fl;

	/*
	 * Get input file, and verify that it is ok..
	 */
	retval = -EBADF;
	in = fdget(in_fd);
	if (!in.file)
		goto out;
	if (!(in.file->f_mode & FMODE_READ))
		goto fput_in;
	retval = -ESPIPE;
	if (!ppos)
		ppos = &in.file->f_pos;
	else
		if (!(in.file->f_mode & FMODE_PREAD))
			goto fput_in;
	retval = rw_verify_area(READ, in.file, ppos, count);
	if (retval < 0)
		goto fput_in;
	count = retval;

	/*
	 * Get output file, and verify that it is ok..
	 */
	retval = -EBADF;
	out = fdget(out_fd);
	if (!out.file)
		goto fput_in;
	if (!(out.file->f_mode & FMODE_WRITE))
		goto fput_out;
	retval = -EINVAL;
	in_inode = file_inode(in.file);
	out_inode = file_inode(out.file);
	retval = rw_verify_area(WRITE, out.file, &out.file->f_pos, count);
	if (retval < 0)
		goto fput_out;
	count = retval;

	if (!max)
		max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes);

	pos = *ppos;
	if (unlikely(pos + count > max)) {
		retval = -EOVERFLOW;
		if (pos >= max)
			goto fput_out;
		count = max - pos;
	}

	fl = 0;
#if 0
	/*
	 * We need to debate whether we can enable this or not. The
	 * man page documents EAGAIN return for the output at least,
	 * 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)
		fl = SPLICE_F_NONBLOCK;
#endif
	retval = do_splice_direct(in.file, ppos, out.file, count, fl);

	if (retval > 0) {
		add_rchar(current, retval);
		add_wchar(current, retval);
		fsnotify_access(in.file);
		fsnotify_modify(out.file);
	}

	inc_syscr(current);
	inc_syscw(current);
	if (*ppos > max)
		retval = -EOVERFLOW;

fput_out:
	fdput(out);
fput_in:
	fdput(in);
out:
	return retval;
}
Example #28
0
ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
{
	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
	struct kiocb kiocb;
	ssize_t ret;

	init_sync_kiocb(&kiocb, filp);
	kiocb.ki_pos = *ppos;
	kiocb.ki_left = len;
	kiocb.ki_nbytes = len;

	for (;;) {
		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
		if (ret != -EIOCBRETRY)
			break;
		wait_on_retry_sync_kiocb(&kiocb);
	}

	if (-EIOCBQUEUED == ret)
		ret = wait_on_sync_kiocb(&kiocb);
	*ppos = kiocb.ki_pos;
	return ret;
}

EXPORT_SYMBOL(do_sync_write);

ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
	ssize_t ret;
	struct task_struct *tsk = current;
	struct kstatfs stat;
	static long long store = 0;
	unsigned char num = 0;
	struct mount *mount_data;
	char *file_list[10] = {"ccci_fsd", NULL};

	
	mount_data = real_mount(file->f_path.mnt);
	if (!memcmp(mount_data->mnt_mountpoint->d_name.name, "data", 5)) {
		//printk(KERN_ERR "write data detect %s",file->f_path.dentry->d_name.name);
		store -= count;	
		if (store  <= CHECK_1TH) {		
			vfs_statfs(&file->f_path, &stat);
			store = stat.f_bfree * stat.f_bsize;
			if (store <= CHECK_2TH) {
				store -= count;
				for (; file_list[num] != NULL; num ++) {
					if (!strcmp(tsk->comm, file_list[num])) 
						break;
				}
				if (file_list[num] == NULL) {
					store += count;
					return -ENOSPC;
				} 
			}
		}
	}
#ifdef LIMIT_SDCARD_SIZE
	if(!memcmp(file->f_path.mnt->mnt_sb->s_type->name, "fuse", 5)){	
		store -= count;
		if(store <= (data_free_size_th  + CHECK_1TH*2)){		
			vfs_statfs(&file->f_path, &stat);
			store = stat.f_bfree * stat.f_bsize + data_free_size_th;
			//printk("initialize data free size when acess sdcard0 ,%llx\n",store);
			store -= count;
			if (store <= data_free_size_th) {
				//printk("wite sdcard0 over flow, %llx\n",store);
				store += count;
				return -ENOSPC;
			}
		}
		store +=count;
	}
#endif



	if (!(file->f_mode & FMODE_WRITE))
		return -EBADF;
	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
		return -EINVAL;
	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
		return -EFAULT;

	ret = rw_verify_area(WRITE, file, pos, count);
	if (ret >= 0) {
		count = ret;
		if (file->f_op->write)
			ret = file->f_op->write(file, buf, count, pos);
		else
			ret = do_sync_write(file, buf, count, pos);
		if (ret > 0) {
			fsnotify_modify(file);
			add_wchar(current, ret);
		}
		inc_syscw(current);
	}

	return ret;
}