Dave Chinner b6dd08652e radix-tree: clear all tags in radix_tree_node_rcu_free ... Commit f446daaea9 ("mm: implement writeback livelock avoidance using page tagging") introduced a new radix tree tag, increasing the number of tags in each node from 2 to 3. It did not, however, fix up the code in radix_tree_node_rcu_free() that cleans up after radix_tree_shrink() and hence could leave stray tags set in the new tag array. The result is that the livelock avoidance code added in the the above commit would hit stale tags when doing tag based lookups, resulting in livelocks when trying to traverse the tree. Fix this problem in radix_tree_node_rcu_free() so it doesn't happen again in the future by using a loop to walk all the tags up to RADIX_TREE_MAX_TAGS to clear the stray tags radix_tree_shrink() leaves behind. Signed-off-by: Dave Chinner <dchinner@redhat.com> Acked-by: Nick Piggin <npiggin@kernel.dk> Acked-by: Jan Kara <jack@suse.cz>		2010-08-23 10:33:19 +10:00
..
lzo	lib: add support for LZO-compressed kernels	2010-01-11 09:34:04 -08:00
raid6	Further tidyup of raid6 naming in lib/raid6	2010-08-12 06:44:54 +10:00
reed_solomon	lib: Remove unnecessary inclusions of asm/semaphore.h	2008-04-18 22:17:17 -04:00
zlib_deflate	trivial: fix typo "to to" in multiple files	2009-09-21 15:14:55 +02:00
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_test.c	ARM: 6213/1: atomic64_test: add ARM as supported architecture	2010-07-27 10:43:46 +01:00
atomic64.c	lib: Fix atomic64_add_unless return value convention	2010-03-01 11:38:46 -08:00
audit.c
bcd.c	rtc: BCD codeshrink	2008-07-24 10:47:33 -07:00
bitmap.c	Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"	2010-05-30 09:00:03 -07:00
bitrev.c	lib: export bitrev16	2008-06-06 11:29:10 -07:00
btree.c	lib/btree: fix possible NULL pointer dereference	2010-05-15 12:48:10 -07:00
bug.c	lib/bug.c: add oops end marker to WARN implementation	2010-08-11 08:59:22 -07:00
bust_spinlocks.c	oops handling: ensure that any oops is flushed to the mtdoops console	2009-01-06 15:59:11 -08:00
check_signature.c
checksum.c	lib/checksum: fix one more thinko	2009-11-03 16:06:53 +01:00
cmdline.c	generic, memparse(): constify argument	2008-07-28 15:05:23 +02:00
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
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
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c	[SCSI] lib: Add support for the T10 (SCSI) Data Integrity Field CRC	2008-07-12 08:22:32 -05:00
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	atomic: only take lock when the counter drops to zero on UP as well	2009-06-16 19:47:47 -07:00
decompress_bunzip2.c	lib/decompress_bunzip2.c: fix checkstack warning	2010-08-11 08:59:23 -07:00
decompress_inflate.c	lzma/gzip: fix potential oops when input data is truncated	2009-09-24 07:21:05 -07:00
decompress_unlzma.c	lzma/gzip: fix potential oops when input data is truncated	2009-09-24 07:21:05 -07:00
decompress_unlzo.c	lib: fix the use of LZO to decompress initramfs images	2010-04-24 11:31:25 -07:00
decompress.c	Add LZO compression support for initramfs and old-style initrd	2010-01-11 09:34:05 -08:00
devres.c	lib/devres.c: fix comment typo	2010-07-11 22:16:32 +02:00
div64.c	add an inlined version of iter_div_u64_rem	2008-06-12 10:47:58 +02:00
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	module: trim exception table on init free.	2009-06-12 21:47:04 +09:30
fault-inject.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
find_last_bit.c	bitmap: find_last_bit()	2009-01-01 10:12:19 +10:30
find_next_bit.c	bitops: remove "optimizations"	2008-04-29 08:11:16 -07:00
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	lib: add lib/gcd.c	2009-06-18 13:04:05 -07:00
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_copy.c
iomap.c	Use WARN() in lib/	2008-07-26 12:00:07 -07:00
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	kernel: is_current_single_threaded: don't use ->mmap_sem	2009-07-17 09:11:31 +10:00
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	Merge branch 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm	2010-08-10 13:58:11 -07:00
Kconfig.kgdb	mips,kgdb: kdb low level trap catch and stack trace	2010-05-20 21:04:26 -05:00
Kconfig.kmemcheck	kmemcheck: depend on HAVE_ARCH_KMEMCHECK	2009-07-01 22:28:44 +02:00
kernel_lock.c	bkl: Fixup core_lock fallout	2009-12-14 23:55:33 +01:00
klist.c	driver core: Remove completion from struct klist_node	2009-01-06 10:44:30 -08:00
kobject_uevent.c	kobject: free memory if netlink_kernel_create() fails	2010-06-04 13:27:52 -07:00
kobject.c	sysfs: Comment sysfs directory tagging logic	2010-05-21 09:37:31 -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	libcrc32c: Fix "crc32c undefined" compilation error	2008-12-25 11:01:42 +11:00
list_debug.c	list debugging: warn when deleting a deleted entry	2010-08-09 20:45:08 -07:00
list_sort.c	lib: revise list_sort() header comment	2010-03-06 11:26:35 -08:00
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	locking: rename trace_softirq_[enter|exit] => lockdep_softirq_[enter|exit]	2009-03-13 01:32:36 +01:00
lru_cache.c	The DRBD driver	2009-10-01 21:17:49 +02:00
Makefile	Merge branch 'async' of macbook:git/btrfs-unstable	2010-08-09 10:36:44 +01:00
nlattr.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6	2009-03-26 22:45:23 -07:00
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	plist: Make plist debugging raw_spinlock aware	2009-12-14 23:55:33 +01:00
prio_heap.c	lib: fix sparse shadowed variable warning	2009-01-06 15:59:11 -08:00
prio_tree.c
proportions.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-06 17:10:04 -08:00
radix-tree.c	radix-tree: clear all tags in radix_tree_node_rcu_free	2010-08-23 10:33:19 +10:00
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	lib/scatterlist: Hook sg_kmalloc into kmemleak (v2)	2010-07-28 22:59:02 +01:00
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	cpumask: convert lib/smp_processor_id to new cpumask ops	2009-01-30 15:47:34 +01:00
sort.c	generic swap(): lib/sort.c: rename swap to swap_func	2009-01-08 08:31:14 -08:00
spinlock_debug.c	locking: Further name space cleanups	2009-12-14 23:55:33 +01:00
string_helpers.c	[SCSI] lib: string_get_size(): don't hang on zero; no decimals on exact	2008-10-23 11:42:20 -05:00
string.c	lib/string.c: simplify strnstr()	2010-03-06 11:26:35 -08:00
swiotlb.c	swiotlb: Make swiotlb bookkeeping functions visible in the header file.	2010-06-07 11:59:27 -04:00
syscall.c	task_current_syscall	2008-07-26 12:00:10 -07:00
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	textsearch: ts_bm: support case insensitive searching in Boyer-Moore algorithm	2008-07-08 02:37:54 -07:00
ts_fsm.c	textsearch: ts_fsm: return error on request for case insensitive search	2008-07-08 02:38:27 -07:00
ts_kmp.c	textsearch: ts_kmp: support case insensitive searching in Knuth-Morris-Pratt algorithm	2008-07-08 02:38:09 -07:00
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