Linus Torvalds eb6a9339ef Mainly singleton patches, documented in their respective changelogs. ... Notable series include: - Some maintenance and performance work for ocfs2 in Heming Zhao's series "improve write IO performance when fragmentation is high". - Some ocfs2 bugfixes from Su Yue in the series "ocfs2 bugs fixes exposed by fstests". - kfifo header rework from Andy Shevchenko in the series "kfifo: Clean up kfifo.h". - GDB script fixes from Florian Rommel in the series "scripts/gdb: Fixes for $lx_current and $lx_per_cpu". - After much discussion, a coding-style update from Barry Song explaining one reason why inline functions are preferred over macros. The series is "codingstyle: avoid unused parameters for a function-like macro". -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZkpLYQAKCRDdBJ7gKXxA jo9NAQDctSD3TMXqxqCHLaEpCaYTYzi6TGAVHjgkqGzOt7tYjAD/ZIzgcmRwthjP R7SSiSgZ7UnP9JRn16DQILmFeaoG1gs= =lYhr -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-mm updates from Andrew Morton: "Mainly singleton patches, documented in their respective changelogs. Notable series include: - Some maintenance and performance work for ocfs2 in Heming Zhao's series "improve write IO performance when fragmentation is high". - Some ocfs2 bugfixes from Su Yue in the series "ocfs2 bugs fixes exposed by fstests". - kfifo header rework from Andy Shevchenko in the series "kfifo: Clean up kfifo.h". - GDB script fixes from Florian Rommel in the series "scripts/gdb: Fixes for $lx_current and $lx_per_cpu". - After much discussion, a coding-style update from Barry Song explaining one reason why inline functions are preferred over macros. The series is "codingstyle: avoid unused parameters for a function-like macro"" * tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (62 commits) fs/proc: fix softlockup in __read_vmcore nilfs2: convert BUG_ON() in nilfs_finish_roll_forward() to WARN_ON() scripts: checkpatch: check unused parameters for function-like macro Documentation: coding-style: ask function-like macros to evaluate parameters nilfs2: use __field_struct() for a bitwise field selftests/kcmp: remove unused open mode nilfs2: remove calls to folio_set_error() and folio_clear_error() kernel/watchdog_perf.c: tidy up kerneldoc watchdog: allow nmi watchdog to use raw perf event watchdog: handle comma separated nmi_watchdog command line nilfs2: make superblock data array index computation sparse friendly squashfs: remove calls to set the folio error flag squashfs: convert squashfs_symlink_read_folio to use folio APIs scripts/gdb: fix detection of current CPU in KGDB scripts/gdb: make get_thread_info accept pointers scripts/gdb: fix parameter handling in $lx_per_cpu scripts/gdb: fix failing KGDB detection during probe kfifo: don't use "proxy" headers media: stih-cec: add missing io.h media: rc: add missing io.h ...		2024-05-19 14:02:03 -07:00
..
842
crypto	crypto: lib - implement library version of AES in CFB mode	2024-05-09 22:30:51 +03:00
dim	lib: Allow for the DIM library to be modular	2024-05-07 16:42:45 -07:00
fonts	fbdev fixes and cleanups for 6.9-rc1:	2024-03-22 10:09:08 -07:00
kunit	kunit: bail out early in __kunit_test_suites_init() if there are no suites to test	2024-05-06 14:22:02 -06:00
lz4
lzo
math	bitmap: introduce generic optimized bitmap_size()	2024-04-01 10:49:28 +01:00
pldmfw	lib: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:53 -07:00
raid6	kbuild: use $(src) instead of $(srctree)/$(src) for source directory	2024-05-10 04:34:52 +09:00
reed_solomon	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
test_fortify	string: Remove strlcpy()	2024-01-19 11:59:11 -08:00
vdso	vdso: Fix powerpc build U64_MAX undeclared error	2024-04-09 12:35:19 +02:00
xz	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
zlib_deflate	lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH	2023-02-27 17:00:14 -08:00
zlib_dfltcc	lib/zlib: remove redundation assignement of avail_in dfltcc_gdht()	2023-02-02 22:50:10 -08:00
zlib_inflate	lib/zlib: Split deflate and inflate states for DFLTCC	2023-02-02 22:50:09 -08:00
zstd	zstd: Fix array-index-out-of-bounds UBSAN warning	2023-11-14 17:12:52 -08:00
.gitignore
alloc_tag.c	alloc_tag: Tighten file permissions on /proc/allocinfo	2024-04-25 20:55:59 -07:00
argv_split.c	argv_split: fix kernel-doc warnings	2023-09-19 13:21:33 -07:00
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c	assoc_array: fix the return value in assoc_array_insert_mid_shortcut()	2024-03-12 13:09:23 -07:00
atomic64_test.c
atomic64.c
audit.c
base64.c
bcd.c
bch.c	lib/bch.c: use bitrev instead of internal logic	2023-08-18 10:18:58 -07:00
bitfield_kunit.c
bitmap-str.c	lib/bitmap: split-out string-related operations to a separate files	2023-10-14 20:25:22 -07:00
bitmap.c	cpumask: add cpumask_weight_andnot()	2024-02-01 13:06:40 +01:00
bitrev.c
bootconfig-data.S
bootconfig.c	bootconfig: Fix the kerneldoc of _xbc_exit()	2024-04-18 05:01:32 +09:00
bsearch.c
btree.c	btree: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:54 -07:00
bucket_locks.c
bug.c	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-01-31 15:01:45 +01:00
build_OID_registry	lib/build_OID_registry: don't mention the full path of the script in output	2024-04-25 21:07:01 -07:00
buildid.c	vmlinux: Avoid weak reference to notes section	2024-05-02 19:48:26 +09:00
bust_spinlocks.c
check_signature.c
checksum_kunit.c	lib: checksum: hide unused expected_csum_ipv6_magic[]	2024-04-08 11:03:05 +01:00
checksum.c
closure.c	closures: closure_sync_timeout()	2024-05-08 17:29:22 -04:00
clz_ctz.c	lib/clz_ctz.c: Fix __clzdi2() and __ctzdi2() for 32-bit kernels	2023-08-25 13:22:10 -07:00
clz_tab.c
cmdline_kunit.c	lib/cmdline: Fix an invalid format specifier in an assertion msg	2024-02-27 15:25:56 -07:00
cmdline.c
cmpdi2.c
cmpxchg-emu.c	lib: Add one-byte emulation function	2024-04-09 22:06:00 -07:00
codetag.c	lib: add memory allocations report in show_mem()	2024-04-25 20:55:57 -07:00
compat_audit.c
cpu_rmap.c	lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()	2023-06-07 21:25:00 -07:00
cpumask_kunit.c	cpumask: re-introduce constant-sized cpumask optimizations	2023-03-05 14:30:34 -08:00
cpumask.c	bitmap patches for v6.7	2023-11-03 07:08:36 -10:00
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c
crc64.c
crc-ccitt.c	lib: crc_ccitt_false() is identical to crc_itu_t()	2023-12-29 12:22:26 -08:00
crc-itu-t.c
crc-t10dif.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: Stop accessing objects after releasing hash bucket lock	2023-11-22 10:41:46 +01:00
dec_and_lock.c	perf: Fix perf_event_pmu_context serialization	2023-01-31 20:37:18 +01:00
decompress_bunzip2.c
decompress_inflate.c	decompressor: provide missing prototypes	2023-06-09 17:44:17 -07:00
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
decompress_unzstd.c	decompressor: provide missing prototypes	2023-06-09 17:44:17 -07:00
decompress.c
devmem_is_allowed.c	lib: devmem_is_allowed: include linux/io.h	2023-06-09 17:44:15 -07:00
devres.c	devres: don't use "proxy" headers	2024-04-25 21:07:06 -07:00
dhry_1.c	lib: dhry: use ktime_ms_delta() helper	2024-02-22 15:38:52 -08:00
dhry_2.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_run.c	lib: dhry: remove unneeded <linux/mutex.h>	2024-02-22 15:38:52 -08:00
dhry.h	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
digsig.c
dump_stack.c	dump_stack: Do not get cpu_sync for panic CPU	2024-02-07 17:23:19 +01:00
dynamic_debug.c	dyndbg: fix old BUG_ON in >control parser	2024-04-30 09:20:48 +02:00
dynamic_queue_limits.c	net: dqs: make struct dql more cache efficient	2024-04-15 11:19:53 -07:00
earlycpio.c
errname.c	parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes	2023-11-25 09:43:18 +01:00
error-inject.c	lib: error-inject: remove error checking for debugfs_create_dir()	2023-08-18 10:18:55 -07:00
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c	fault-inject: allow configuration via configfs	2023-04-13 07:38:54 -06:00
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
fdt.c
find_bit_benchmark.c	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
find_bit.c	cpumask: Introduce cpumask_first_and_and()	2024-04-24 21:23:49 +02:00
flex_proportions.c	flex_proportions: remove unused fprop_local_single	2024-02-22 15:38:52 -08:00
fortify_kunit.c	string: Add additional __realloc_size() annotations for "dup" helpers	2024-05-02 07:52:41 -07:00
fw_table.c	lib/firmware_table: Provide buffer length argument to cdat_table_parse()	2024-03-13 00:03:21 -07:00
gen_crc32table.c
gen_crc64table.c
genalloc.c	Devicetree include cleanups for v6.6:	2023-08-30 17:04:28 -07:00
generic-radix-tree.c	lib/generic-radix-tree.c: Make nodes more reasonably sized	2024-03-13 21:22:26 -04:00
glob.c
globtest.c
group_cpus.c	lib/group_cpus.c: avoid acquiring cpu hotplug lock in group_cpus_evenly	2023-12-06 16:12:46 -08:00
hashtable_test.c	lib/hashtable_test.c: add test for the hashtable structure	2023-02-08 14:28:17 -07:00
hexdump.c
hweight.c
idr.c	ida: Fix crash in ida_free when the bitmap is empty	2023-12-21 10:02:28 -08:00
inflate.c
interval_tree_test.c
interval_tree.c	interval-tree: Add a utility to iterate over spans in an interval tree	2022-11-29 16:34:15 -04:00
iomap_copy.c	s390: Stop using weak symbols for __iowrite64_copy()	2024-04-22 17:11:20 -03:00
iomap.c
iommu-helper.c
iov_iter.c	vfs-6.9.misc	2024-03-11 09:38:17 -07:00
irq_poll.c
irq_regs.c
is_signed_type_kunit.c	lib: assume char is unsigned	2022-11-19 00:56:15 +01:00
is_single_threaded.c
kasprintf.c
Kconfig	lib: Allow for the DIM library to be modular	2024-05-07 16:42:45 -07:00
Kconfig.debug	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
Kconfig.kasan	treewide: update LLVM Bugzilla links	2024-02-22 15:38:51 -08:00
Kconfig.kcsan	Kernel concurrency sanitizer (KCSAN) updates for v6.3	2023-02-25 13:02:20 -08:00
Kconfig.kfence	mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile	2023-12-05 11:14:40 +01:00
Kconfig.kgdb	kgdb: add HAS_IOPORT dependency	2024-04-25 21:07:05 -07:00
Kconfig.kmsan	mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile	2023-12-05 11:14:40 +01:00
Kconfig.ubsan	ubsan: Disable signed integer overflow sanitizer on GCC < 8	2024-03-18 11:24:14 -07:00
kfifo.c	kfifo: don't use "proxy" headers	2024-05-08 08:41:27 -07:00
klist.c
kobject_uevent.c	kobject: reduce uevent_sock_mutex scope	2024-02-17 16:20:41 +01:00
kobject.c	Revert "kobject: Remove redundant checks for whether ktype is NULL"	2024-02-08 16:39:25 +00:00
kstrtox.c	kstrtox: consistently use _tolower()	2023-08-21 13:46:25 -07:00
kstrtox.h
kunit_iov_iter.c	kunit: Fix KUNIT_SUCCESS() calls in iov_iter tests	2024-05-06 14:22:02 -06:00
libcrc32c.c	libcrc32c: remove crc32c_impl	2023-04-17 18:01:23 +02:00
linear_ranges.c
list_debug.c	list: Introduce CONFIG_LIST_HARDENED	2023-08-15 14:57:25 -07:00
list_sort.c
list-test.c	list: test: Test the klist structure	2023-03-31 09:21:35 -06:00
llist.c	llist: add llist_del_first_this()	2023-10-16 12:44:06 -04:00
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-rtmutex.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	lockdep/selftests: Use SBRM APIs for wait context tests	2023-07-26 12:29:13 +02:00
lockref.c	lockref: stop doing cpu_relax in the cmpxchg loop	2023-01-13 14:35:38 -06:00
logic_iomem.c
logic_pio.c	minmax: add in_range() macro	2023-08-24 16:20:18 -07:00
lru_cache.c	lru_cache: remove unused lc_private, lc_set, lc_index_of	2022-11-22 19:38:39 -07:00
lshrdi3.c
lwq.c	lib: add light-weight queuing mechanism.	2023-10-16 12:44:06 -04:00
Makefile	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
maple_tree.c	maple_tree: fix mas_empty_area_rev() null pointer dereference	2024-05-05 17:28:05 -07:00
memcat_p.c
memcpy_kunit.c	string_kunit: Move strtomem KUnit test to string_kunit.c	2024-04-24 09:02:34 -07:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c	mac_pton: Clean up the header inclusions	2023-06-06 13:18:32 +02:00
netdev-notifier-error-inject.c
nlattr.c	netlink: add nla be16/32 types to minlen array	2024-02-22 19:01:55 -08:00
nmi_backtrace.c	nmi_backtrace: allow excluding an arbitrary CPU	2023-08-18 10:19:00 -07:00
notifier-error-inject.c	lib: remove error checking for debugfs_create_dir()	2023-08-18 10:18:55 -07:00
notifier-error-inject.h
objagg.c
objpool.c	objpool: cache nr_possible_cpus() and avoid caching nr_cpu_ids	2024-05-01 23:18:48 +09:00
of-reconfig-notifier-error-inject.c
oid_registry.c	lib/oid_registry.c: remove redundant assignment to variable num	2022-11-18 13:55:06 -08:00
once.c
overflow_kunit.c	overflow: Change DEFINE_FLEX to take __counted_by member	2024-03-22 16:25:31 -07:00
packing.c	lib: packing: remove MODULE_LICENSE in non-modules	2023-03-09 23:08:04 -08:00
parman.c
parser.c	lib: parser: update documentation for match_NUMBER functions	2023-03-02 21:54:22 -08:00
percpu_counter.c	percpu_counter: extend _limited_add() to negative amounts	2023-10-18 14:34:14 -07:00
percpu_test.c
percpu-refcount.c	percpu-refcount: Use call_rcu_hurry() for atomic switch	2022-11-30 13:16:40 -08:00
plist.c
pm-notifier-error-inject.c
polynomial.c
radix-tree.c	radix tree: remove unused variable	2023-08-21 13:07:22 -07:00
radix-tree.h	radix-tree: move declarations to header	2023-06-12 11:31:50 -07:00
random32.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
ratelimit.c
rbtree_test.c
rbtree.c	lib/rbtree: use '+' instead of '|' for setting color.	2023-04-18 16:39:33 -07:00
rcuref.c	locking/atomics: Use atomic_try_cmpxchg_release() to micro-optimize rcuref_put_slowpath()	2023-10-10 10:14:27 +02:00
ref_tracker.c	lib/ref_tracker: remove warnings in case of allocation failure	2023-06-05 15:28:42 -07:00
refcount.c
rhashtable.c	rhashtable: plumb through alloc tag	2024-04-25 20:55:57 -07:00
sbitmap.c	sbitmap: use READ_ONCE to access map->word	2024-04-26 07:40:28 -06:00
scatterlist.c	Fix a potential infinite loop in extract_user_to_sg()	2024-04-26 12:35:57 -07:00
seq_buf.c	seq_buf: Fix kernel documentation	2024-02-15 12:17:28 -05:00
sg_pool.c
sg_split.c
siphash_kunit.c	siphash: Convert selftest to KUnit	2022-11-01 10:04:52 -07:00
siphash.c
slub_kunit.c	mm/slub, kunit: Use inverted data to corrupt kmem cache	2024-04-04 16:08:10 +02:00
smp_processor_id.c
sort.c	lib/sort: optimize heapsort with double-pop variation	2024-02-22 15:38:52 -08:00
stackdepot.c	stackdepot: respect __GFP_NOLOCKDEP allocation flag	2024-04-24 19:34:26 -07:00
stackinit_kunit.c	- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min	2024-03-14 18:03:09 -07:00
stmp_device.c
string_helpers_kunit.c	string: Convert helpers selftest to KUnit	2024-03-05 01:55:28 -08:00
string_helpers.c	lib/string_helpers: Add flags param to string_get_size()	2024-02-29 22:34:42 -08:00
string_kunit.c	string_kunit: Move strtomem KUnit test to string_kunit.c	2024-04-24 09:02:34 -07:00
string.c	string: Allow 2-argument strscpy()	2024-02-20 20:47:32 -08:00
strncpy_from_user.c
strnlen_user.c
syscall.c
test_bitmap.c	lib/bitmap: add compile-time test for __assign_bit() optimization	2024-04-01 10:49:28 +01:00
test_bitops.c
test_bits.c
test_blackhole_dev.c	net: blackhole_dev: fix build warning for ethh set but not used	2024-02-05 12:30:54 +00:00
test_bpf.c	bpf, tests: Fix typos in comments	2024-04-16 17:22:18 +02:00
test_debug_virtual.c
test_dynamic_debug.c
test_firmware.c	firmware_loader: Expand Firmware upload error codes with firmware invalid error	2023-11-24 18:09:19 -08:00
test_fprobe.c	fprobe: Pass return address to the handlers	2023-06-06 21:39:55 +09:00
test_fpu.c
test_free_pages.c
test_hash.c
test_hexdump.c	test_hexdump: avoid string truncation warning	2024-04-25 21:07:07 -07:00
test_hmm_uapi.h	hmm-tests: add test for migrate_device_range()	2022-10-12 18:51:50 -07:00
test_hmm.c	lib/test_hmm.c: handle src_pfns and dst_pfns allocation failure	2024-04-25 20:55:48 -07:00
test_ida.c	Quite a lot of kexec work this time around. Many singleton patches in	2024-01-09 11:46:20 -08:00
test_kmod.c	lib/test_kmod: fix kernel-doc warnings	2024-02-02 10:21:26 -08:00
test_kprobes.c	test_kprobes: Add recursed kprobe test case	2023-02-21 08:52:42 +09:00
test_linear_ranges.c	lib/test_linear_ranges: Use LINEAR_RANGE()	2022-11-16 13:32:32 +00:00
test_list_sort.c	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
test_lockup.c
test_maple_tree.c	test_maple_tree: testing the cyclic allocation	2024-02-21 09:34:26 +01:00
test_memcat_p.c
test_meminit.c	mm, treewide: introduce NR_PAGE_ORDERS	2024-01-08 15:27:15 -08:00
test_min_heap.c	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
test_module.c
test_objagg.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
test_objpool.c	lib: test_objpool: make global variables static	2023-11-10 19:59:04 +09:00
test_parman.c
test_printf.c	lib/vsprintf: declare no_hash_pointers in sprintf.h	2023-08-21 13:46:24 -07:00
test_ref_tracker.c	lib/ref_tracker: improve printing stats	2023-06-05 15:28:42 -07:00
test_rhashtable.c	Kill sched.h dependency on rcupdate.h	2023-12-27 11:50:20 -05:00
test_scanf.c	lib: test_scanf: Add explicit type cast to result initialization in test_number_prefix()	2023-08-16 11:47:29 +02:00
test_sort.c
test_static_key_base.c
test_static_keys.c
test_sysctl.c	sysctl: Remove the now superfluous sentinel elements from ctl_table array	2023-12-28 04:57:57 -08:00
test_ubsan.c	ubsan: fix unused variable warning in test module	2024-04-03 14:35:57 -07:00
test_user_copy.c
test_uuid.c
test_vmalloc.c	lib/test_vmalloc.c: use unsigned long constant	2024-03-04 17:01:22 -08:00
test_xarray.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
test-kstrtox.c
textsearch.c
timerqueue.c
trace_readwrite.c	lib/trace_readwrite.c:: replace asm-generic/io with linux/io	2023-12-29 12:22:29 -08:00
ts_bm.c	lib/ts_bm: add helper to reduce indentation and improve readability	2023-07-27 13:45:51 +02:00
ts_fsm.c
ts_kmp.c
ubsan.c	ubsan: Add awareness of signed integer overflow traps	2024-04-15 17:42:43 -07:00
ubsan.h	ubsan: Avoid i386 UBSAN handler crashes with Clang	2024-04-24 15:45:38 -07:00
ucmpdi2.c
ucs2_string.c	lib/ucs2_string: Add UCS-2 strscpy function	2023-09-13 10:18:42 -07:00
usercopy.c	uaccess: Add speculation barrier to copy_from_user()	2023-02-21 14:45:22 -08:00
uuid.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
vsprintf.c	lib/vsprintf: Fix %pfwf when current node refcount == 0	2023-12-06 11:06:59 +01:00
win_minmax.c	lib/win_minmax: use /* notation for regular comments	2023-01-11 16:14:21 -08:00
xarray.c	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
xxhash.c