Re: [PATCH 06/12] VFS: support concurrent renames.

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Hi NeilBrown,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.19-rc2 next-20220614]
[cannot apply to trondmy-nfs/linux-next viro-vfs/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/intel-lab-lkp/linux/commits/NeilBrown/Allow-concurrent-directory-updates/20220614-072355
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3
config: i386-randconfig-s001-20220613 (https://download.01.org/0day-ci/archive/20220614/202206142059.8hhAq16w-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-30-g92122700-dirty
        # https://github.com/intel-lab-lkp/linux/commit/46a2afd9f68f24a42f38f3a8afebafe7e494e9d8
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review NeilBrown/Allow-concurrent-directory-updates/20220614-072355
        git checkout 46a2afd9f68f24a42f38f3a8afebafe7e494e9d8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>


sparse warnings: (new ones prefixed by >>)
>> fs/namei.c:3175:15: sparse: sparse: symbol 'lock_rename_lookup_excl' was not declared. Should it be static?
   fs/namei.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...):
   include/linux/rcupdate.h:726:9: sparse: sparse: context imbalance in 'terminate_walk' - unexpected unlock
   include/linux/rcupdate.h:726:9: sparse: sparse: context imbalance in 'try_to_unlazy' - unexpected unlock
   include/linux/rcupdate.h:726:9: sparse: sparse: context imbalance in 'try_to_unlazy_next' - unexpected unlock
   fs/namei.c:2492:19: sparse: sparse: context imbalance in 'path_init' - different lock contexts for basic block

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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