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Subject[dhowells-fs:fscache-iter-2 58/69] fs/afs/write.c:27: undefined reference to `fscache_set_page_dirty'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter-2
head: 589298a2e3fbae71f425089da4afb5a0fd3f939f
commit: a1b4b13a5a0037d49005930b50d186d71e07d74b [58/69] afs: Copy local writes to the cache when writing to the server
config: x86_64-randconfig-m001-20210722 (attached as .config)
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?id=a1b4b13a5a0037d49005930b50d186d71e07d74b
git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
git fetch --no-tags dhowells-fs fscache-iter-2
git checkout a1b4b13a5a0037d49005930b50d186d71e07d74b
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

ld: fs/afs/write.o: in function `afs_set_page_dirty':
>> fs/afs/write.c:27: undefined reference to `fscache_set_page_dirty'
ld: fs/afs/write.o: in function `fscache_write_to_cache':
>> include/linux/fscache.h:557: undefined reference to `__fscache_write_to_cache'
ld: fs/afs/write.o: in function `fscache_clear_page_bits':
>> include/linux/fscache.h:547: undefined reference to `__fscache_clear_page_bits'


vim +27 fs/afs/write.c

17
18 static void afs_write_to_cache(struct afs_vnode *vnode, loff_t start, size_t len,
19 loff_t i_size);
20
21 /*
22 * Mark a page as having been made dirty and thus needing writeback. We also
23 * need to pin the cache object to write back to.
24 */
25 int afs_set_page_dirty(struct page *page)
26 {
> 27 return fscache_set_page_dirty(page, afs_vnode_cache(AFS_FS_I(page->mapping->host)));
28 }
29

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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