Kay Sievers 578454ff7e driver core: add devname module aliases to allow module on-demand auto-loading ... This adds: alias: devname:<name> to some common kernel modules, which will allow the on-demand loading of the kernel module when the device node is accessed. Ideally all these modules would be compiled-in, but distros seems too much in love with their modularization that we need to cover the common cases with this new facility. It will allow us to remove a bunch of pretty useless init scripts and modprobes from init scripts. The static device node aliases will be carried in the module itself. The program depmod will extract this information to a file in the module directory: $ cat /lib/modules/2.6.34-00650-g537b60d-dirty/modules.devname # Device nodes to trigger on-demand module loading. microcode cpu/microcode c10:184 fuse fuse c10:229 ppp_generic ppp c108:0 tun net/tun c10:200 dm_mod mapper/control c10:235 Udev will pick up the depmod created file on startup and create all the static device nodes which the kernel modules specify, so that these modules get automatically loaded when the device node is accessed: $ /sbin/udevd --debug ... static_dev_create_from_modules: mknod '/dev/cpu/microcode' c10:184 static_dev_create_from_modules: mknod '/dev/fuse' c10:229 static_dev_create_from_modules: mknod '/dev/ppp' c108:0 static_dev_create_from_modules: mknod '/dev/net/tun' c10:200 static_dev_create_from_modules: mknod '/dev/mapper/control' c10:235 udev_rules_apply_static_dev_perms: chmod '/dev/net/tun' 0666 udev_rules_apply_static_dev_perms: chmod '/dev/fuse' 0666 A few device nodes are switched to statically allocated numbers, to allow the static nodes to work. This might also useful for systems which still run a plain static /dev, which is completely unsafe to use with any dynamic minor numbers. Note: The devname aliases must be limited to the *common* and *single*instance* device nodes, like the misc devices, and never be used for conceptually limited systems like the loop devices, which should rather get fixed properly and get a control node for losetup to talk to, instead of creating a random number of device nodes in advance, regardless if they are ever used. This facility is to hide the mess distros are creating with too modualized kernels, and just to hide that these modules are not compiled-in, and not to paper-over broken concepts. Thanks! :) Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: David S. Miller <davem@davemloft.net> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Chris Mason <chris.mason@oracle.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: Ian Kent <raven@themaw.net> Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2010-05-25 15:08:26 -07:00
..
9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs	2010-05-24 07:41:13 -07:00
adfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
affs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
afs	AFS: Don't put struct file on the stack	2010-05-21 18:31:28 -04:00
autofs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
autofs4	driver core: add devname module aliases to allow module on-demand auto-loading	2010-05-25 15:08:26 -07:00
befs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
bfs	bfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:25 -04:00
btrfs	driver core: add devname module aliases to allow module on-demand auto-loading	2010-05-25 15:08:26 -07:00
cachefiles	CacheFiles: Fix error handling in cachefiles_determine_cache_security()	2010-05-12 18:23:58 -07:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2010-05-24 07:37:52 -07:00
cifs	cifs: fix noserverino handling when unix extensions are enabled	2010-05-17 20:59:21 +00:00
coda	Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing	2010-05-24 08:01:10 -07:00
configfs	Fix the regression created by "set S_DEAD on unlink()..." commit	2010-05-15 07:16:33 -04:00
cramfs
debugfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
devpts	Simplify devpts_get_sb() failure exits	2010-05-21 18:31:12 -04:00
dlm	dlm: fix ast ordering for user locks	2010-04-30 14:52:51 -05:00
ecryptfs	switch ecryptfs_write() to struct inode *, kill on-stack fake files	2010-05-21 18:31:28 -04:00
efs
exofs	Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd	2010-05-24 07:57:41 -07:00
exportfs	nfs: new subdir Documentation/filesystems/nfs	2009-10-27 19:34:04 -04:00
ext2	ext2: replace inode uid,gid,mode init with helper	2010-05-21 18:31:24 -04:00
ext3	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
fat	fatfs: ratelimit corruption report	2010-05-25 08:07:04 -07:00
freevxfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
fscache	fs-cache: order the debugfs stats correctly	2010-04-07 08:38:05 -07:00
fuse	driver core: add devname module aliases to allow module on-demand auto-loading	2010-05-25 15:08:26 -07:00
gfs2	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes	2010-05-25 08:17:51 -07:00
hfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
hfsplus	hfsplus: Push down BKL into ioctl function	2010-05-17 05:27:03 +02:00
hostfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
hpfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
hppfs	hppfs can use existing proc_mnt, no need for do_kern_mount() in there	2010-03-03 14:08:00 -05:00
hugetlbfs	Untangling ima mess, part 1: alloc_file()	2009-12-16 12:16:47 -05:00
isofs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
jbd	ext3: Fix waiting on transaction during fsync	2010-05-21 19:30:41 +02:00
jbd2	Merge branch 'master' into for-2.6.35	2010-05-21 21:27:26 +02:00
jffs2	jffs2: constify xattr_handler	2010-05-21 18:31:20 -04:00
jfs	jfs: replace inode uid,gid,mode init with helper	2010-05-21 18:31:23 -04:00
lockd	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
logfs	logfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:27 -04:00
minix	minix: replace inode uid,gid,mode init with helper	2010-05-21 18:31:24 -04:00
ncpfs	ncpfs: BKL ioctl pushdown	2010-05-17 05:27:42 +02:00
nfs	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
nfs_common	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
nfsd	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
nls
notify	Saner locking around deactivate_super()	2010-05-21 18:31:14 -04:00
ntfs	ntfs: use add_to_page_cache_lru()	2010-05-25 08:07:03 -07:00
ocfs2	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
omfs	omfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:25 -04:00
openpromfs
partitions	fs: ldm: don't use own implementation of hex_to_bin()	2010-05-25 08:07:06 -07:00
proc	pagemap: add #ifdefs CONFIG_HUGETLB_PAGE on code walking hugetlb vma	2010-05-25 08:06:58 -07:00
qnx4	fs/qnx4: decrement sizeof size in strncmp	2010-02-04 11:55:46 +01:00
quota	new helper: iterate_supers()	2010-05-21 18:31:16 -04:00
ramfs	ramfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:26 -04:00
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
romfs	fix leak in romfs_fill_super()	2010-01-26 22:22:26 -05:00
smbfs	smbfs: remove duplicated #include	2010-05-25 08:07:07 -07:00
squashfs	squashfs: fix potential buffer over-run on 4K block file systems	2010-04-25 02:09:05 +01:00
sysfs	sysfs: add struct file* to bin_attr callbacks	2010-05-21 09:37:31 -07:00
sysv	sysv: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:26 -04:00
ubifs	ubifs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:26 -04:00
udf	udf: replace inode uid,gid,mode init with helper	2010-05-21 18:31:27 -04:00
ufs	ufs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:27 -04:00
xfs	Merge branch 'delayed-logging-for-2.6.35' into for-linus	2010-05-24 11:57:36 -05:00
aio.c	aio: remove unused field	2009-12-16 07:20:13 -08:00
anon_inodes.c	anon_inode: set S_IFREG on the anon_inode	2010-05-21 18:31:20 -04:00
attr.c	fs: use rlimit helpers	2010-03-06 11:26:29 -08:00
bad_inode.c
binfmt_aout.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
binfmt_elf_fdpic.c	Remove redundant check for CONFIG_MMU	2010-04-27 09:01:26 -07:00
binfmt_elf.c	coredump: pass mm->flags as a coredump parameter for consistency	2010-03-06 11:26:46 -08:00
binfmt_em86.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
binfmt_flat.c	uclinux: error message when FLAT reloc symbol is invalid, v2	2010-04-21 13:28:49 +10:00
binfmt_misc.c
binfmt_script.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
binfmt_som.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
bio-integrity.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
bio.c	Merge branch 'master' into for-linus	2010-03-19 08:05:10 +01:00
block_dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
buffer.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
char_dev.c
compat_binfmt_elf.c	elf coredump: replace ELF_CORE_EXTRA_* macros by functions	2010-03-06 11:26:45 -08:00
compat_ioctl.c	pktcdvd: improve BKL and compat_ioctl.c usage	2010-04-29 08:44:37 -07:00
compat.c	revert "procfs: provide stack information for threads" and its fixup commits	2010-05-11 17:33:41 -07:00
dcache.c	fix prune_dcache()/umount() race	2010-05-21 18:31:16 -04:00
dcookies.c
direct-io.c	dio: fix use-after-free	2009-12-17 04:52:13 -05:00
drop_caches.c	new helper: iterate_supers()	2010-05-21 18:31:16 -04:00
eventfd.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
eventpoll.c	sched, wait: Use wrapper functions	2010-05-11 17:43:58 +02:00
exec.c	mm: migration: avoid race between shift_arg_pages() and rmap_walk() during migration by not migrating temporary stacks	2010-05-25 08:06:59 -07:00
fcntl.c	Merge branch 'master' into for-2.6.35	2010-05-21 21:27:26 +02:00
fifo.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
file_table.c	vfs: take f_lock on modifying f_mode after open time	2010-03-06 11:26:25 -08:00
file.c	fs: use rlimit helpers	2010-03-06 11:26:29 -08:00
filesystems.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
fs_struct.c
fs-writeback.c	fs-writeback: check sync bit earlier in inode_wait_for_writeback	2010-05-25 08:07:00 -07:00
generic_acl.c	fs: xattr_handler table should be const	2010-05-21 18:31:18 -04:00
inode.c	vfs: Add inode uid,gid,mode init helper	2010-05-21 18:31:22 -04:00
internal.h	Bury __put_super_and_need_restart()	2010-05-21 18:31:16 -04:00
ioctl.c	Introduce freeze_super and thaw_super for the fsfreeze ioctl	2010-05-21 18:31:18 -04:00
ioprio.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2010-03-19 09:43:06 -07:00
Kconfig.binfmt
libfs.c	FS / libfs: Implement simple_write_to_buffer	2010-05-10 23:08:17 +02:00
locks.c	Merge branch 'for-next' into for-linus	2010-03-08 16:55:37 +01:00
Makefile	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
mbcache.c
mpage.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
namei.c	namei.c : update mnt when it needed	2010-05-21 18:31:22 -04:00
namespace.c	Merge branch 'next' into for-linus	2010-05-18 08:57:00 +10:00
nfsctl.c	Switch may_open() and break_lease() to passing O_...	2010-03-03 13:00:21 -05:00
no-block.c
open.c	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
pipe.c	pipe: set lower and upper limit on max pages in the pipe page array	2010-05-21 21:12:52 +02:00
pnode.c	Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source()	2010-03-03 13:00:22 -05:00
pnode.h	VFS: Clean up shared mount flag propagation	2010-03-03 14:07:55 -05:00
posix_acl.c
read_write.c	do_sync_read/write() should set kiocb.ki_nbytes to be consistent	2010-03-24 16:43:29 -07:00
read_write.h
readdir.c
select.c	Add generic sys_old_select()	2010-03-12 15:52:32 -08:00
seq_file.c	seq_file: fix new kernel-doc warnings	2010-03-07 15:48:26 -08:00
signalfd.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
splice.c	pipe: add support for shrinking and growing pipes	2010-05-21 21:12:40 +02:00
stack.c	VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size	2009-12-17 10:58:17 -05:00
stat.c	Add unlocked version of inode_add_bytes() function	2009-12-23 13:33:54 +01:00
statfs.c	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
super.c	vfs: add lockdep annotation to s_vfs_rename_key for ecryptfs	2010-05-21 18:31:22 -04:00
sync.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
timerfd.c	fs/timerfd.c: make use of wait_event_interruptible_locked_irq()	2010-05-20 13:21:42 -07:00
utimes.c
xattr_acl.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
xattr.c	fs: xattr_handler table should be const	2010-05-21 18:31:18 -04:00