Jörn Engel wrote: > Does the allocation have to be persistent beyond lifetime of the file > descriptor? It would be fairly simple to support the write guarantee > while the file is open (or rather the inode remains cached) and drop it > afterwards. "The posix_fallocate() function shall ensure that any required storage for regular file data starting at offset and continuing for len bytes is allocated on the file system storage media." I interpret "on the storage media" to mean that it is persistent. -Eric - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html