Linus Torvalds 5336377d62 modules: Fix module_bug_list list corruption race ... With all the recent module loading cleanups, we've minimized the code that sits under module_mutex, fixing various deadlocks and making it possible to do most of the module loading in parallel. However, that whole conversion totally missed the rather obscure code that adds a new module to the list for BUG() handling. That code was doubly obscure because (a) the code itself lives in lib/bugs.c (for dubious reasons) and (b) it gets called from the architecture-specific "module_finalize()" rather than from generic code. Calling it from arch-specific code makes no sense what-so-ever to begin with, and is now actively wrong since that code isn't protected by the module loading lock any more. So this commit moves the "module_bug_{finalize,cleanup}()" calls away from the arch-specific code, and into the generic code - and in the process protects it with the module_mutex so that the list operations are now safe. Future fixups: - move the module list handling code into kernel/module.c where it belongs. - get rid of 'module_bug_list' and just use the regular list of modules (called 'modules' - imagine that) that we already create and maintain for other reasons. Reported-and-tested-by: Thomas Gleixner <tglx@linutronix.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Adrian Bunk <bunk@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-10-05 11:29:27 -07:00
..
lzo	lib: add support for LZO-compressed kernels	2010-01-11 09:34:04 -08:00
raid6	Move .gitignore from drivers/md to lib/raid6	2010-08-30 17:35:52 +10:00
reed_solomon
zlib_deflate
zlib_inflate	inflate_fast: sout is already a short so ptr arith was off by one.	2010-03-12 15:52:44 -08:00
.gitignore
argv_split.c	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
atomic64.c	lib: Fix atomic64_add_unless return value convention	2010-03-01 11:38:46 -08:00
atomic64_test.c	ARM: 6213/1: atomic64_test: add ARM as supported architecture	2010-07-27 10:43:46 +01:00
audit.c
bcd.c
bitmap.c	Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"	2010-05-30 09:00:03 -07:00
bitrev.c
btree.c	lib/btree: fix possible NULL pointer dereference	2010-05-15 12:48:10 -07:00
bug.c	modules: Fix module_bug_list list corruption race	2010-10-05 11:29:27 -07:00
bust_spinlocks.c
check_signature.c
checksum.c
cmdline.c
cpu-notifier-error-inject.c	fault-injection: add CPU notifier error injection module	2010-05-27 09:12:48 -07:00
cpumask.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
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc7.c
crc16.c
crc32.c	revert "crc32: use __BYTE_ORDER macro for endian detection"	2010-05-26 08:19:23 -07:00
crc32defs.h
ctype.c	ctype: constify read-only _ctype string	2009-12-15 08:53:32 -08:00
debug_locks.c	rcu: Introduce lockdep-based checking to RCU read-side primitives	2010-02-25 09:40:59 +01:00
debugobjects.c	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-18 08:17:58 -07:00
dec_and_lock.c
decompress.c	Add LZO compression support for initramfs and old-style initrd	2010-01-11 09:34:05 -08:00
decompress_bunzip2.c	lib/decompress_bunzip2.c: fix checkstack warning	2010-08-11 08:59:23 -07:00
decompress_inflate.c
decompress_unlzma.c
decompress_unlzo.c	lib: fix the use of LZO to decompress initramfs images	2010-04-24 11:31:25 -07:00
devres.c	lib/devres.c: fix comment typo	2010-07-11 22:16:32 +02:00
div64.c
dma-debug.c	dma-debug: Cleanup for copy-loop in filter_write()	2010-04-07 14:36:27 +02:00
dump_stack.c
dynamic_debug.c	module: initialize module dynamic debug later	2010-07-04 20:17:22 -07:00
extable.c
fault-inject.c
find_last_bit.c
find_next_bit.c
flex_array.c	flex_array: add helpers to get and put to make pointers easy to use	2010-08-09 20:45:09 -07:00
gcd.c
gen_crc32table.c	crc32: major optimization	2010-05-25 08:07:06 -07:00
genalloc.c	genalloc: fix allocation from end of pool	2010-06-29 15:29:30 -07:00
halfmd4.c
hexdump.c	lib: introduce common method to convert hex digits	2010-05-25 08:07:05 -07:00
hweight.c	x86: Add optimized popcnt variants	2010-04-06 15:52:11 -07:00
idr.c	idr: fix RCU lockdep splat in idr_get_next()	2010-06-23 06:50:45 -07:00
inflate.c	MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader	2010-08-12 09:51:35 -07:00
int_sqrt.c
iomap.c
iomap_copy.c
iommu-helper.c	iommu: inline iommu_num_pages	2010-08-09 20:45:05 -07:00
ioremap.c	x86, ioremap: Fix incorrect physical address handling in PAE mode	2010-07-09 11:42:03 -07:00
irq_regs.c
is_single_threaded.c
kasprintf.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 'async' of macbook:git/btrfs-unstable	2010-08-09 10:36:44 +01:00
Kconfig.debug	latencytop: Fix kconfig dependency warnings	2010-08-17 09:09:03 +02:00
Kconfig.kgdb	mips,kgdb: kdb low level trap catch and stack trace	2010-05-20 21:04:26 -05:00
Kconfig.kmemcheck
kernel_lock.c
klist.c
kobject.c	sysfs: Comment sysfs directory tagging logic	2010-05-21 09:37:31 -07:00
kobject_uevent.c	kobject_uevent: fix typo in comments	2010-08-23 18:12:46 -07:00
kref.c	kref: remove kref_set	2010-05-21 09:37:29 -07:00
lcm.c	block: Fix overrun in lcm() and move it to lib	2010-03-15 12:47:59 +01:00
libcrc32c.c
list_debug.c	list debugging: warn when deleting a deleted entry	2010-08-09 20:45:08 -07:00
list_sort.c	lib/list_sort: do not pass bad pointers to cmp callback	2010-10-01 10:50:58 -07:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lru_cache.c
Makefile	Merge branch 'async' of macbook:git/btrfs-unstable	2010-08-09 10:36:44 +01:00
nlattr.c
parser.c	parser: remove unnecessary strlen()	2009-12-15 08:53:33 -08:00
percpu_counter.c	tmpfs: add accurate compare function to percpu_counter library	2010-08-09 20:44:58 -07:00
plist.c
prio_heap.c
prio_tree.c
proportions.c
radix-tree.c	Merge branch 'radix-tree' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev	2010-08-22 19:55:14 -07:00
random32.c	Merge branch 'master' into for-next	2010-06-16 18:08:13 +02:00
ratelimit.c	ratelimit: fix the return value when __ratelimit() fails to acquire the lock	2010-04-07 08:38:04 -07:00
rational.c	lib/rational.c needs module.h	2010-01-11 09:34:05 -08:00
rbtree.c	rbtree: Undo augmented trees performance damage and regression	2010-07-05 14:43:50 +02:00
reciprocal_div.c
rwsem-spinlock.c	rwsem generic spinlock: use IRQ save/restore spinlocks	2010-04-07 16:15:05 -07:00
rwsem.c	rwsem: smaller wrappers around rwsem_down_failed_common	2010-08-09 20:45:11 -07:00
scatterlist.c	scatterlist: prevent invalid free when alloc fails	2010-08-30 19:55:09 +02:00
sha1.c
show_mem.c	mm: use the same log level for show_mem()	2010-03-06 11:26:27 -08:00
smp_processor_id.c
sort.c
spinlock_debug.c
string.c	lib/string.c: simplify strnstr()	2010-03-06 11:26:35 -08:00
string_helpers.c
swiotlb.c	swiotlb: Make swiotlb bookkeeping functions visible in the header file.	2010-06-07 11:59:27 -04:00
syscall.c
textsearch.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
ts_bm.c
ts_fsm.c
ts_kmp.c
uuid.c	Unified UUID/GUID definition	2010-05-19 22:40:47 -04:00
vsprintf.c	lib: vsprintf: useless strlen() removed	2010-08-09 20:45:09 -07:00