1:41 p.m.
Hi Mina,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on hnaz-mm/master]
url:
https://github.com/0day-ci/linux/commits/Mina-Almasry/mm-shmem-support-de...
base: https://github.com/hnaz/linux-mm master
config: um-i386_defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
#
https://github.com/0day-ci/linux/commit/51d8c281f9e96cc0269902e4597a972c7...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Mina-Almasry/mm-shmem-support-deterministic-charging-of-tmpfs/20211112-084506
git checkout 51d8c281f9e96cc0269902e4597a972c7e2510f0
# save the attached .config to linux build tree
make W=1 ARCH=um SUBARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
fs/super.c: In function 'destroy_unused_super':
> fs/super.c:184:5: warning: "CONFIG_MEMCG" is not
defined, evaluates to 0 [-Wundef]
184 | #if CONFIG_MEMCG
| ^~~~~~~~~~~~
fs/super.c: In function '__put_super':
fs/super.c:299:5: warning: "CONFIG_MEMCG" is not defined, evaluates to 0
[-Wundef]
299 | #if CONFIG_MEMCG
| ^~~~~~~~~~~~
vim +/CONFIG_MEMCG +184 fs/super.c
175
176 /* Free a superblock that has never been seen by anyone */
177 static void destroy_unused_super(struct super_block *s)
178 {
179 if (!s)
180 return;
181 up_write(&s->s_umount);
182 list_lru_destroy(&s->s_dentry_lru);
183 list_lru_destroy(&s->s_inode_lru);
184 #if CONFIG_MEMCG
185 mem_cgroup_set_charge_target(&s->s_memcg_to_charge, NULL);
186 #endif
187 security_sb_free(s);
188 put_user_ns(s->s_user_ns);
189 kfree(s->s_subtype);
190 free_prealloced_shrinker(&s->s_shrink);
191 /* no delays needed */
192 destroy_super_work(&s->destroy_work);
193 }
194
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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org