Re: [PATCH 1/2] bcachefs: do not use PF_MEMALLOC_NORECLAIM

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Hi Michal,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on tip/sched/core brauner-vfs/vfs.all linus/master v6.11-rc5]
[cannot apply to next-20240826]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Michal-Hocko/bcachefs-do-not-use-PF_MEMALLOC_NORECLAIM/20240826-171013
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20240826085347.1152675-2-mhocko%40kernel.org
patch subject: [PATCH 1/2] bcachefs: do not use PF_MEMALLOC_NORECLAIM
config: arm-randconfig-003-20240827 (https://download.01.org/0day-ci/archive/20240827/202408270446.6Ew7FPHA-lkp@xxxxxxxxx/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 08e5a1de8227512d4774a534b91cb2353cef6284)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240827/202408270446.6Ew7FPHA-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408270446.6Ew7FPHA-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from fs/bcachefs/fs.c:4:
   In file included from fs/bcachefs/bcachefs.h:188:
   In file included from include/linux/bio.h:10:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:8:
   In file included from include/linux/cacheflush.h:5:
   In file included from arch/arm/include/asm/cacheflush.h:10:
   In file included from include/linux/mm.h:2198:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> fs/bcachefs/fs.c:248:60: error: too many arguments provided to function-like macro invocation
     248 |         if (unlikely(inode_init_always_gfp(c->vfs_sb, &inode->v), gfp)) {
         |                                                                   ^
   include/linux/compiler.h:77:10: note: macro 'unlikely' defined here
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |          ^
>> fs/bcachefs/fs.c:248:6: error: use of undeclared identifier 'unlikely'
     248 |         if (unlikely(inode_init_always_gfp(c->vfs_sb, &inode->v), gfp)) {
         |             ^
>> fs/bcachefs/fs.c:261:60: error: use of undeclared identifier 'GFP_NOWARN'
     261 |         struct bch_inode_info *inode = __bch2_new_inode(trans->c, GFP_NOWARN | GFP_NOWAIT);
         |                                                                   ^
   1 warning and 3 errors generated.


vim +248 fs/bcachefs/fs.c

   233	
   234	static struct bch_inode_info *__bch2_new_inode(struct bch_fs *c, gfp_t gfp)
   235	{
   236		struct bch_inode_info *inode = kmem_cache_alloc(bch2_inode_cache, gfp);
   237		if (!inode)
   238			return NULL;
   239	
   240		inode_init_once(&inode->v);
   241		mutex_init(&inode->ei_update_lock);
   242		two_state_lock_init(&inode->ei_pagecache_lock);
   243		INIT_LIST_HEAD(&inode->ei_vfs_inode_list);
   244		inode->ei_flags = 0;
   245		mutex_init(&inode->ei_quota_lock);
   246		memset(&inode->ei_devs_need_flush, 0, sizeof(inode->ei_devs_need_flush));
   247	
 > 248		if (unlikely(inode_init_always_gfp(c->vfs_sb, &inode->v), gfp)) {
   249			kmem_cache_free(bch2_inode_cache, inode);
   250			return NULL;
   251		}
   252	
   253		return inode;
   254	}
   255	
   256	/*
   257	 * Allocate a new inode, dropping/retaking btree locks if necessary:
   258	 */
   259	static struct bch_inode_info *bch2_new_inode(struct btree_trans *trans)
   260	{
 > 261		struct bch_inode_info *inode = __bch2_new_inode(trans->c, GFP_NOWARN | GFP_NOWAIT);
   262	
   263		if (unlikely(!inode)) {
   264			int ret = drop_locks_do(trans, (inode = __bch2_new_inode(trans->c, GFP_NOFS)) ? 0 : -ENOMEM);
   265			if (ret && inode) {
   266				__destroy_inode(&inode->v);
   267				kmem_cache_free(bch2_inode_cache, inode);
   268			}
   269			if (ret)
   270				return ERR_PTR(ret);
   271		}
   272	
   273		return inode;
   274	}
   275	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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