Linus Torvalds
2c6a392cdd
Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ...
Pull stack trace updates from Ingo Molnar:
"So Thomas looked at the stacktrace code recently and noticed a few
weirdnesses, and we all know how such stories of crummy kernel code
meeting German engineering perfection end: a 45-patch series to clean
it all up! :-)
Here's the changes in Thomas's words:
'Struct stack_trace is a sinkhole for input and output parameters
which is largely pointless for most usage sites. In fact if embedded
into other data structures it creates indirections and extra storage
overhead for no benefit.
Looking at all usage sites makes it clear that they just require an
interface which is based on a storage array. That array is either on
stack, global or embedded into some other data structure.
Some of the stack depot usage sites are outright wrong, but
fortunately the wrongness just causes more stack being used for
nothing and does not have functional impact.
Another oddity is the inconsistent termination of the stack trace
with ULONG_MAX. It's pointless as the number of entries is what
determines the length of the stored trace. In fact quite some call
sites remove the ULONG_MAX marker afterwards with or without nasty
comments about it. Not all architectures do that and those which do,
do it inconsistenly either conditional on nr_entries == 0 or
unconditionally.
The following series cleans that up by:
1) Removing the ULONG_MAX termination in the architecture code
2) Removing the ULONG_MAX fixups at the call sites
3) Providing plain storage array based interfaces for stacktrace
and stackdepot.
4) Cleaning up the mess at the callsites including some related
cleanups.
5) Removing the struct stack_trace based interfaces
This is not changing the struct stack_trace interfaces at the
architecture level, but it removes the exposure to the generic
code'"
* 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)
x86/stacktrace: Use common infrastructure
stacktrace: Provide common infrastructure
lib/stackdepot: Remove obsolete functions
stacktrace: Remove obsolete functions
livepatch: Simplify stack trace retrieval
tracing: Remove the last struct stack_trace usage
tracing: Simplify stack trace retrieval
tracing: Make ftrace_trace_userstack() static and conditional
tracing: Use percpu stack trace buffer more intelligently
tracing: Simplify stacktrace retrieval in histograms
lockdep: Simplify stack trace handling
lockdep: Remove save argument from check_prev_add()
lockdep: Remove unused trace argument from print_circular_bug()
drm: Simplify stacktrace handling
dm persistent data: Simplify stack trace handling
dm bufio: Simplify stack trace retrieval
btrfs: ref-verify: Simplify stack trace retrieval
dma/debug: Simplify stracktrace retrieval
fault-inject: Simplify stacktrace retrieval
mm/page_owner: Simplify stack trace handling
...
2019-05-06 13:11:48 -07:00
Pull request for inlusion in 5.1
2019-03-17 09:10:56 -07:00
adfs: use timespec64 for time conversion
2018-08-22 10:52:51 -07:00
afs: Fix in-progess ops to ignore server-level callback invalidation
2019-04-13 08:37:37 +01:00
autofs: clear O_NONBLOCK on the pipe
2019-03-07 18:32:01 -08:00
bfs: extra sanity checking and static inode bitmap
2019-01-04 13:13:47 -08:00
Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 13:11:48 -07:00
fscache, cachefiles: remove redundant variable 'cache'
2018-11-30 16:00:58 +00:00
ceph: fix ci->i_head_snapc leak
2019-04-23 21:37:54 +02:00
cifs: fix page reference leak with readv/writev
2019-04-24 12:33:59 -05:00
Make the Cramfs code more robust against filesystem corruptions,
2018-10-30 12:46:25 -07:00
fscrypt updates for v5.1
2019-03-09 10:54:24 -08:00
debugfs: fix use-after-free on symlink traversal
2019-04-01 00:31:02 -04:00
fs/devpts: always delete dcache dentry-s in dput()
2019-01-24 13:38:30 -05:00
socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes
2019-02-03 11:17:31 -08:00
crypto: clarify name of WEAK_KEY request flag
2019-01-25 18:41:52 +08:00
exportfs: do not read dentry after free
2018-11-23 09:08:17 -05:00
\n
2019-03-07 09:01:33 -08:00
Miscellaneous ext4 bug fixes for 5.1.
2019-03-24 13:41:37 -07:00
f2fs-for-5.1-rc1
2019-03-15 13:42:53 -07:00
fat: enable .splice_write to support splice on O_DIRECT file
2019-03-07 18:32:01 -08:00
fscache: fix race between enablement and dropping of object
2018-11-30 15:57:31 +00:00
Merge branch 'page-refs' (page ref overflow)
2019-04-14 15:09:40 -07:00
We've only got three patches ready for this merge window:
2019-03-09 11:52:11 -08:00
hfs: do not free node before using
2018-11-30 14:56:14 -08:00
hfsplus: return file attributes on statx
2019-01-04 13:13:47 -08:00
vfs: discard ATTR_ATTR_FLAG
2018-08-17 16:20:28 -07:00
hpfs: fix spelling mistake "partion" -> "partition"
2019-03-12 09:58:03 -07:00
hugetlbfs: fix memory leak for resv_map
2019-04-05 16:02:31 -10:00
Update email address
2018-09-29 22:47:48 -04:00
jbd2: jbd2_get_transaction does not need to return a value
2019-03-01 00:36:57 -05:00
jffs2: fix use-after-free on symlink traversal
2019-04-01 00:31:02 -04:00
jfs: remove redundant dquot_initialize() in jfs_evict_inode()
2018-09-20 09:28:49 -05:00
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
NFS: fix mount/umount race in nlmclnt.
2019-03-18 22:39:34 -04:00
NFSv4.1 fix incorrect return value in copy_file_range
2019-04-11 15:23:48 -04:00
nfsd: wake blocked file lock waiters before sending callback
2019-04-22 15:38:41 -04:00
XArray: Change xa_insert to return -EBUSY
2019-02-06 13:12:15 -05:00
fsnotify: Fix NULL ptr deref in fanotify_get_fsid()
2019-04-28 22:14:50 +02:00
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock
2019-03-29 10:01:37 -07:00
fs/openpromfs: Use of_node_name_eq for node name comparisons
2018-11-18 13:35:19 -08:00
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 13:27:20 -07:00
ovl: Do not lose security.capability xattr over metadata file copy-up
2019-02-13 11:14:46 +01:00
Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 13:11:48 -07:00
pstore/ram: Avoid needless alloc during header write
2019-02-12 13:45:53 -08:00
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
2018-12-18 18:29:15 +01:00
reiserfs: remove workaround code for GCC 3.x
2018-10-31 08:54:14 -07:00
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-16 10:31:02 -07:00
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-11-10 08:02:40 -05:00
ubifs: fix use-after-free on symlink traversal
2019-04-01 00:31:02 -04:00
udf: Propagate errors from udf_truncate_extents()
2019-03-18 16:30:02 +01:00
ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
2019-05-02 02:24:50 -04:00
xfs: serialize unaligned dio writes against all other dio writes
2019-03-26 08:37:55 -07:00
aio: use kmem_cache_free() instead of kfree()
2019-04-04 20:13:59 -04:00
a.out: remove core dumping support
2019-03-05 10:00:35 -08:00
fs/binfmt_elf.c: spread const a little
2019-03-07 18:32:01 -08:00
exec: load_script: Do not exec truncated interpreter path
2019-02-18 16:49:36 -08:00
block: fix handling for BIO_NO_PAGE_REF
2019-05-01 08:38:47 -06:00
fs: fix guard_bio_eod to check for real EOD errors
2019-02-28 13:59:41 -07:00
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
media updates for v4.20-rc1
2018-10-29 14:29:58 -07:00
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
fs/dax: Deposit pagetable even when installing zero page
2019-03-13 13:58:46 -07:00
fs/dcache: Track & report number of negative dentries
2019-01-30 11:02:11 -08:00
block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2019-02-15 08:40:11 -07:00
fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()
2019-02-01 15:46:24 -08:00
epoll: use rwlock in order to reduce ep_poll_callback() contention
2019-03-07 18:32:01 -08:00
exec: increase BINPRM_BUF_SIZE to 256
2019-03-07 18:32:01 -08:00
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
io_uring-2019-03-06
2019-03-08 14:48:40 -08:00
fs: add fget_many() and fput_many()
2019-02-28 08:24:23 -07:00
vfs: Implement a filesystem superblock creation/configuration context
2019-02-28 03:29:26 -05:00
writeback: synchronize sync(2) against cgroup writeback membership switches
2019-01-22 14:39:38 -07:00
vfs: Implement logging through fs_context
2019-02-28 03:29:37 -05:00
fs: fs_parser: fix printk format warning
2019-03-29 10:01:38 -07:00
fs: common implementation of file type
2019-01-21 17:48:13 +01:00
Abort file_remove_privs() for non-reg. files
2019-04-28 21:46:57 -04:00
vfs: Add configuration parser helpers
2019-02-28 03:28:53 -05:00
io_uring: avoid page allocation warnings
2019-05-01 10:00:25 -06:00
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
block: add BIO_NO_PAGE_REF flag
2019-03-18 10:44:48 -06:00
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
locks: wake any locks blocked on request before deadlock check
2019-03-25 08:36:24 -04:00
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
saner handling of temporary namespaces
2019-01-30 17:44:07 -05:00
block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2019-02-15 08:40:11 -07:00
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 14:08:19 -07:00
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-04-06 07:01:55 -10:00
Merge branch 'page-refs' (page ref overflow)
2019-04-14 15:09:40 -07:00
separate copying and locking mount tree on cross-userns copies
2019-01-30 17:14:50 -05:00
separate copying and locking mount tree on cross-userns copies
2019-01-30 17:14:50 -05:00
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2019-04-06 07:01:55 -10:00
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
fs/seq_file.c: simplify seq_file iteration code and interface
2018-08-17 16:20:28 -07:00
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
There tracing fixes:
2019-04-26 11:09:55 -07:00
fs: move generic stat response attr handling to vfs_getattr_nosec
2019-02-01 01:55:45 -05:00
vfs: add vfs_get_fsid() helper
2019-02-07 16:38:35 +01:00
[fix] get rid of checking for absent device name in vfs_get_tree()
2019-04-28 21:34:21 -04:00
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
2019-04-19 09:46:05 -07:00
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00
2c6a392cdd