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Waiman Long c71fd893f6 locking/rwsem: Make owner available even if !CONFIG_RWSEM_SPIN_ON_OWNER 
The owner field in the rw_semaphore structure is used primarily for
optimistic spinning. However, identifying the rwsem owner can also be
helpful in debugging as well as tracing locking related issues when
analyzing crash dump. The owner field may also store state information
that can be important to the operation of the rwsem.

So the owner field is now made a permanent member of the rw_semaphore
structure irrespective of CONFIG_RWSEM_SPIN_ON_OWNER.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: huang ying <huang.ying.caritas@gmail.com>
Link: https://lkml.kernel.org/r/20190520205918.22251-2-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-17 12:27:54 +02:00
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fonts
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livepatch
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lz4
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math
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mpi
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raid6
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reed_solomon
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zlib_deflate
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zlib_inflate
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zstd
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.gitignore
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argv_split.c
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ashldi3.c
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ashrdi3.c
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asn1_decoder.c
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assoc_array.c
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atomic64_test.c
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atomic64.c
locking/atomic: Use s64 for atomic64
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audit.c
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bcd.c
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bch.c
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bitmap.c
lib: rework bitmap_parselist
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bitrev.c
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bsearch.c
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btree.c
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bucket_locks.c
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bug.c
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build_OID_registry
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bust_spinlocks.c
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chacha.c
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check_signature.c
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checksum.c
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clz_ctz.c
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clz_tab.c
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cmdline.c
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cmpdi2.c
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compat_audit.c
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cpu_rmap.c
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cpumask.c
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crc4.c
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crc7.c
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crc8.c
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crc16.c
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crc32.c
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crc32defs.h
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crc32test.c
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crc64.c
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crc-ccitt.c
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ctype.c
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debug_info.c
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debug_locks.c
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debugobjects.c
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dec_and_lock.c
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decompress_bunzip2.c
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decompress.c
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digsig.c
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dump_stack.c
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dynamic_debug.c
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dynamic_queue_limits.c
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earlycpio.c
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error-inject.c
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errseq.c
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extable.c
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fault-inject.c
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fdt_empty_tree.c
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fdt_ro.c
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fdt_rw.c
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fdt_strerror.c
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fdt_sw.c
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fdt.c
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find_bit_benchmark.c
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find_bit.c
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flex_proportions.c
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gen_crc32table.c
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genalloc.c
lib/genalloc: introduce chunk owners
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generic-radix-tree.c
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glob.c
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globtest.c
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hexdump.c
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hweight.c
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interval_tree_test.c
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iomap_copy.c
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iomap.c
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iommu-helper.c
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ioremap.c
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iov_iter.c
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irq_poll.c
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irq_regs.c
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kasprintf.c
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Kconfig
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Kconfig.debug
locking/rwsem: Make owner available even if !CONFIG_RWSEM_SPIN_ON_OWNER
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Kconfig.kasan
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kfifo.c
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list_sort.c
lib/list_sort: fix kerneldoc build error
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locking-selftest-wlock-hardirq.h
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locking-selftest-wsem.h
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locking-selftest.c
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lockref.c
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Makefile
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memory-notifier-error-inject.c
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net_utils.c
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percpu_counter.c
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percpu_test.c
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plist.c
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pm-notifier-error-inject.c
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radix-tree.c
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random32.c
lib: Correct comment of prandom_seed
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ratelimit.c
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rhashtable.c
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test_firmware.c
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test_stackinit.c
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test_static_key_base.c
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test_strscpy.c
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test_sysctl.c
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test_ubsan.c
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test_user_copy.c
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test_uuid.c
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test_vmalloc.c
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ubsan.c
Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
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ubsan.h
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ucmpdi2.c
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ucs2_string.c
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uuid.c
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vsprintf.c
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