2008/3/11, Hugh Dickins <hugh@xxxxxxxxxxx>: > On Tue, 11 Mar 2008, Akinobu Mita wrote: > > This patch defers mounting tmpfs till shmem_file_setup() is > > called first time by using call_once(). > > > Please explain why we might need this patch: is something changing > elsewhere? Or are you misled by that "module_init(init_tmpfs)" > into thinking that mm/shmem.c is sometimes built modular? > If no processes call shmem_file_setup() (via shm_get(2)), it is unnecessary to do vfs_kern_mount(&tmpfs_fs_type, ...) unconditionary in boot-time. So I thought it is suitable example to demonstrate how to use "call_once()" in this patch set. -- 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
