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remarkable-linux/fs/btrfs
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Liu Bo 6939f66724 Btrfs: fix confusing worker helper info in stacktrace 
We've seen the following backtrace stack in ftrace or dmesg log,

  kworker/u16:10-4244  [000] 241942.480955: function:             btrfs_put_ordered_extent
  kworker/u16:10-4244  [000] 241942.480956: kernel_stack:         <stack trace>
=> finish_ordered_fn (ffffffffa0384475)
=> btrfs_scrubparity_helper (ffffffffa03ca577)        <-----"incorrect"
=> btrfs_freespace_write_helper (ffffffffa03ca98e)    <-----"correct"
=> process_one_work (ffffffff81117b2f)
=> worker_thread (ffffffff81118c2a)
=> kthread (ffffffff81121de0)
=> ret_from_fork (ffffffff81d7087a)

btrfs_freespace_write_helper is actually calling normal_worker_helper
instead of btrfs_scrubparity_helper, so somehow kernel has parsed the
incorrect function address while unwinding the stack,
btrfs_scrubparity_helper really shouldn't be shown up.

It's caused by compiler doing inline for our helper function, adding a
noinline tag can fix that.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ use noinline_for_stack ]
Signed-off-by: David Sterba <dsterba@suse.com>
2017-10-30 12:27:57 +01:00
..
tests btrfs: tests: Fix a memory leak in error handling path in 'run_test()' 2017-10-30 12:27:56 +01:00
acl.c btrfs: preserve i_mode if __btrfs_set_acl() fails 2017-08-21 17:47:42 +02:00
async-thread.c Btrfs: fix confusing worker helper info in stacktrace 2017-10-30 12:27:57 +01:00
async-thread.h btrfs: constify tracepoint arguments 2017-08-16 14:19:53 +02:00
backref.c Btrfs: convert to use btrfs_get_extent_inline_ref_type 2017-08-21 17:47:43 +02:00
backref.h btrfs: backref, add tracepoints for prelim_ref insertion and merging 2017-08-16 16:12:01 +02:00
btrfs_inode.h btrfs: separate defrag and property compression 2017-08-16 16:12:05 +02:00
check-integrity.c Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-09-09 13:27:51 -07:00
check-integrity.h
compression.c Merge branch 'for-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-09-29 12:57:35 -07:00
compression.h Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2017-09-14 17:30:49 -07:00
ctree.c btrfs: Remove unused arguments from btrfs_changed_cb_t 2017-10-30 12:27:56 +01:00
ctree.h btrfs: Remove unused arguments from btrfs_changed_cb_t 2017-10-30 12:27:56 +01:00
dedupe.h
delayed-inode.c btrfs: increase ctx->pos for delayed dir index 2017-08-18 16:36:20 +02:00
delayed-inode.h
delayed-ref.c Btrfs: return old and new total ref mods when adding delayed refs 2017-06-29 20:17:01 +02:00
delayed-ref.h Btrfs: return old and new total ref mods when adding delayed refs 2017-06-29 20:17:01 +02:00
dev-replace.c Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-09-14 18:54:01 -07:00
dev-replace.h
dir-item.c btrfs: fix validation of XATTR_ITEM dir items 2017-06-29 20:06:11 +02:00
disk-io.c Btrfs: remove bio_flags which indicates a meta block of log-tree 2017-10-30 12:27:56 +01:00
disk-io.h btrfs: use named constant for bdev blocksize 2017-08-16 16:12:04 +02:00
export.c btrfs: Check name_len before reading btrfs_get_name 2017-06-21 19:16:04 +02:00
export.h
extent-tree.c btrfs: convert all mount option checking code to use btrfs_test_opt 2017-10-30 12:27:56 +01:00
extent_io.c Btrfs: remove bio_flags which indicates a meta block of log-tree 2017-10-30 12:27:56 +01:00
extent_io.h Btrfs: remove bio_flags which indicates a meta block of log-tree 2017-10-30 12:27:56 +01:00
extent_map.c
extent_map.h
file-item.c Merge branch 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-07-05 16:41:23 -07:00
file.c Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-09-14 19:29:55 -07:00
free-space-cache.c btrfs: drop newlines from strings when using btrfs_* helpers 2017-08-16 16:12:02 +02:00
free-space-cache.h
free-space-tree.c btrfs: pass fs_info to btrfs_del_root instead of tree_root 2017-08-21 17:49:54 +02:00
free-space-tree.h btrfs: expose internal free space tree routine only if sanity tests are enabled 2017-08-18 16:36:29 +02:00
hash.c
hash.h
inode-item.c
inode-map.c btrfs: qgroup: Introduce extent changeset for qgroup reserve functions 2017-06-29 20:17:02 +02:00
inode-map.h
inode.c btrfs: Remove unused parameter from check_direct_IO 2017-10-30 12:27:56 +01:00
ioctl.c Btrfs: fix __user casting in ioctl.c 2017-10-30 12:27:55 +01:00
Kconfig btrfs: Add zstd support 2017-08-15 09:02:09 -07:00
locking.c
locking.h
lzo.c btrfs: switch to kvmalloc and GFP_KERNEL in lzo/zlib alloc_workspace 2017-06-19 18:26:02 +02:00
Makefile btrfs: Add zstd support 2017-08-15 09:02:09 -07:00
math.h
ordered-data.c btrfs: fix integer overflow in calc_reclaim_items_nr 2017-06-29 20:17:02 +02:00
ordered-data.h btrfs: fix integer overflow in calc_reclaim_items_nr 2017-06-29 20:17:02 +02:00
orphan.c
print-tree.c Btrfs: add one more sanity check for shared ref type 2017-08-21 17:47:43 +02:00
print-tree.h btrfs: get fs_info from eb in btrfs_print_tree, remove argument 2017-08-16 16:12:03 +02:00
props.c Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2017-09-14 17:30:49 -07:00
props.h
qgroup.c btrfs: Report error on removing qgroup if del_qgroup_item fails 2017-09-26 14:54:01 +02:00
qgroup.h btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges 2017-06-29 20:17:02 +02:00
raid56.c Btrfs: search parity device wisely 2017-10-30 12:27:55 +01:00
raid56.h
rcu-string.h
reada.c
relocation.c btrfs: fix NULL pointer dereference from free_reloc_roots() 2017-09-26 14:51:49 +02:00
root-tree.c btrfs: Clean up dead code in root-tree 2017-10-30 12:27:56 +01:00
scrub.c Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-09-09 13:27:51 -07:00
send.c btrfs: Remove unused arguments from btrfs_changed_cb_t 2017-10-30 12:27:56 +01:00
send.h
struct-funcs.c btrfs: struct-funcs, constify readers 2017-08-16 14:19:53 +02:00
super.c btrfs: convert all mount option checking code to use btrfs_test_opt 2017-10-30 12:27:56 +01:00
sysfs.c Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-09-14 18:54:01 -07:00
sysfs.h
transaction.c Btrfs: make plug in writing meta blocks really work 2017-10-30 12:27:56 +01:00
transaction.h
tree-defrag.c
tree-log.c btrfs: Remove unused variable 2017-10-30 12:27:55 +01:00
tree-log.h
ulist.c
ulist.h
uuid-tree.c
volumes.c btrfs: Rework error handling of add_extent_mapping in __btrfs_alloc_chunk 2017-10-30 12:27:56 +01:00
volumes.h Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux 2017-09-09 13:27:51 -07:00
xattr.c btrfs: Check name_len with boundary in verify dir_item 2017-06-21 19:16:04 +02:00
xattr.h
zlib.c btrfs: switch to kvmalloc and GFP_KERNEL in lzo/zlib alloc_workspace 2017-06-19 18:26:02 +02:00
zstd.c btrfs: Add zstd support 2017-08-15 09:02:09 -07:00