Alexey Dobriyan 99b7623380 proc 2/2: remove struct proc_dir_entry::owner ... Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy as correctly noted at bug #12454. Someone can lookup entry with NULL ->owner, thus not pinning enything, and release it later resulting in module refcount underflow. We can keep ->owner and supply it at registration time like ->proc_fops and ->data. But this leaves ->owner as easy-manipulative field (just one C assignment) and somebody will forget to unpin previous/pin current module when switching ->owner. ->proc_fops is declared as "const" which should give some thoughts. ->read_proc/->write_proc were just fixed to not require ->owner for protection. rmmod'ed directories will be empty and return "." and ".." -- no harm. And directories with tricky enough readdir and lookup shouldn't be modular. We definitely don't want such modular code. Removing ->owner will also make PDE smaller. So, let's nuke it. Kudos to Jeff Layton for reminding about this, let's say, oversight. http://bugzilla.kernel.org/show_bug.cgi?id=12454 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>		2009-03-31 01:14:44 +04:00
..
blackfin_sram.h	Blackfin arch: change L1 malloc to base on slab cache and lists.	2008-07-19 14:51:31 +08:00
init.c	Blackfin arch: mark init_pda as __init as only __init funcs all it	2009-03-05 18:45:07 +08:00
isram-driver.c	Blackfin arch: Use DTEST rather than DMA to poke at L1 SRAM during exception context	2008-10-08 18:03:33 +08:00
Makefile	Blackfin arch: Use DTEST rather than DMA to poke at L1 SRAM during exception context	2008-10-08 18:03:33 +08:00
sram-alloc.c	proc 2/2: remove struct proc_dir_entry::owner	2009-03-31 01:14:44 +04:00