Exemplos de trace_vfs_fsync em C++ (Cpp)

Exemplo n.º 1

Arquivo: sync.c Projeto: JmzTaylor/android_kernel_htc_totemc2

/**
 * vfs_fsync_range - helper to sync a range of data & metadata to disk
 * @file:		file to sync
 * @start:		offset in bytes of the beginning of data range to sync
 * @end:		offset in bytes of the end of data range (inclusive)
 * @datasync:		perform only datasync
 *
 * Write back data in range @start..@end and metadata for @file to disk.  If
 * @datasync is set only metadata needed to access modified file data is
 * written.
 */
int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync)
{
	struct address_space *mapping = file->f_mapping;
	int err, ret;

	if (!file->f_op || !file->f_op->fsync) {
		ret = -EINVAL;
		goto out;
	}

	ret = filemap_write_and_wait_range(mapping, start, end);

	/*
	 * We need to protect against concurrent writers, which could cause
	 * livelocks in fsync_buffers_list().
	 */
	trace_vfs_fsync(file);
	mutex_lock(&mapping->host->i_mutex);
	err = file->f_op->fsync(file, datasync);
	if (!ret)
		ret = err;
	mutex_unlock(&mapping->host->i_mutex);
	trace_vfs_fsync_done(file);

out:
	return ret;
}

Exemplo n.º 2

Arquivo: sync.c Projeto: MiniBlu/cm11_kernel_htc_msm8974a3ul

/**
 * vfs_fsync_range - helper to sync a range of data & metadata to disk
 * @file:		file to sync
 * @start:		offset in bytes of the beginning of data range to sync
 * @end:		offset in bytes of the end of data range (inclusive)
 * @datasync:		perform only datasync
 *
 * Write back data in range @start..@end and metadata for @file to disk.  If
 * @datasync is set only metadata needed to access modified file data is
 * written.
 */
int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync)
{
	int err;
	if (!file->f_op || !file->f_op->fsync)
		return -EINVAL;
	trace_vfs_fsync(file);
	err = file->f_op->fsync(file, start, end, datasync);
	trace_vfs_fsync_done(file);
	return err;
}