* [dhowells-fs:netfs-next-1 6/8] fs/netfs/buffered_read.c:245:26: error: use of undeclared identifier 'NETFS_RREQ_USE_PGPRIV2'
@ 2026-09-08 22:11 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-08 22:11 UTC (permalink / raw)
To: David Howells; +Cc: llvm, oe-kbuild-all, Paulo Alcantara
tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git netfs-next-1
head: bf6f26c5281fa05cf8c97025dcb2f7f87143138a
commit: 9266aba94da4bdfc7ff858c8191ef647e3067c15 [6/8] netfs: Make deprecated PG_private_2 support opt-in
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260909/202609090040.XYKriffI-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260909/202609090040.XYKriffI-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609090040.XYKriffI-lkp@intel.com/
All errors (new ones prefixed by >>):
>> fs/netfs/buffered_read.c:245:26: error: use of undeclared identifier 'NETFS_RREQ_USE_PGPRIV2'
245 | if (unlikely(test_bit(NETFS_RREQ_USE_PGPRIV2, &rreq->flags))) {
| ^~~~~~~~~~~~~~~~~~~~~~
>> fs/netfs/buffered_read.c:245:26: error: use of undeclared identifier 'NETFS_RREQ_USE_PGPRIV2'
245 | if (unlikely(test_bit(NETFS_RREQ_USE_PGPRIV2, &rreq->flags))) {
| ^~~~~~~~~~~~~~~~~~~~~~
>> fs/netfs/buffered_read.c:245:26: error: use of undeclared identifier 'NETFS_RREQ_USE_PGPRIV2'
245 | if (unlikely(test_bit(NETFS_RREQ_USE_PGPRIV2, &rreq->flags))) {
| ^~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
vim +/NETFS_RREQ_USE_PGPRIV2 +245 fs/netfs/buffered_read.c
e2d46f2ec33253 David Howells 2024-12-16 213
533203c4183123 David Howells 2026-08-27 214 /*
533203c4183123 David Howells 2026-08-27 215 * Mark folios that we want to copy to the cache. For filesystems that use
533203c4183123 David Howells 2026-08-27 216 * netfslib fully, we set folio->private to NETFS_FOLIO_COPY_TO_CACHE;
533203c4183123 David Howells 2026-08-27 217 * otherwise we set the deprecated PG_private_2.
533203c4183123 David Howells 2026-08-27 218 */
533203c4183123 David Howells 2026-08-27 219 static void netfs_mark_copy_to_cache(struct netfs_io_request *rreq,
533203c4183123 David Howells 2026-08-27 220 struct folio_queue **fq,
533203c4183123 David Howells 2026-08-27 221 unsigned int *offset,
533203c4183123 David Howells 2026-08-27 222 int *slot,
533203c4183123 David Howells 2026-08-27 223 size_t len,
533203c4183123 David Howells 2026-08-27 224 bool copy)
533203c4183123 David Howells 2026-08-27 225 {
533203c4183123 David Howells 2026-08-27 226 while (len > 0) {
533203c4183123 David Howells 2026-08-27 227 struct folio *folio;
533203c4183123 David Howells 2026-08-27 228 size_t fsize, overlap;
533203c4183123 David Howells 2026-08-27 229
533203c4183123 David Howells 2026-08-27 230 if (!*fq)
533203c4183123 David Howells 2026-08-27 231 break;
533203c4183123 David Howells 2026-08-27 232 if (*slot >= folioq_count(*fq)) {
533203c4183123 David Howells 2026-08-27 233 *fq = (*fq)->next;
533203c4183123 David Howells 2026-08-27 234 *slot = 0;
533203c4183123 David Howells 2026-08-27 235 *offset = 0;
533203c4183123 David Howells 2026-08-27 236 continue;
533203c4183123 David Howells 2026-08-27 237 }
533203c4183123 David Howells 2026-08-27 238
533203c4183123 David Howells 2026-08-27 239 /* Determine how much the subreq overlaps the folio, if at all. */
533203c4183123 David Howells 2026-08-27 240 fsize = folioq_folio_size(*fq, *slot);
533203c4183123 David Howells 2026-08-27 241 overlap = min(len, fsize - *offset);
533203c4183123 David Howells 2026-08-27 242
533203c4183123 David Howells 2026-08-27 243 if (overlap > 0 && copy) {
533203c4183123 David Howells 2026-08-27 244 folio = folioq_folio(*fq, *slot);
533203c4183123 David Howells 2026-08-27 @245 if (unlikely(test_bit(NETFS_RREQ_USE_PGPRIV2, &rreq->flags))) {
533203c4183123 David Howells 2026-08-27 246 if (!folio_test_private_2(folio))
533203c4183123 David Howells 2026-08-27 247 folio_start_private_2(folio);
533203c4183123 David Howells 2026-08-27 248 } else {
533203c4183123 David Howells 2026-08-27 249 if (!folio_get_private(folio))
533203c4183123 David Howells 2026-08-27 250 folio_attach_private(folio, NETFS_FOLIO_COPY_TO_CACHE);
533203c4183123 David Howells 2026-08-27 251 }
533203c4183123 David Howells 2026-08-27 252 trace_netfs_folio(folio, netfs_folio_trace_mark_copy);
533203c4183123 David Howells 2026-08-27 253 }
533203c4183123 David Howells 2026-08-27 254
533203c4183123 David Howells 2026-08-27 255 len -= overlap;
533203c4183123 David Howells 2026-08-27 256 *offset += overlap;
533203c4183123 David Howells 2026-08-27 257 if (*offset >= fsize) {
533203c4183123 David Howells 2026-08-27 258 *slot += 1;
533203c4183123 David Howells 2026-08-27 259 *offset = 0;
533203c4183123 David Howells 2026-08-27 260 }
533203c4183123 David Howells 2026-08-27 261 }
533203c4183123 David Howells 2026-08-27 262 }
533203c4183123 David Howells 2026-08-27 263
:::::: The code at line 245 was first introduced by commit
:::::: 533203c4183123dad8ffecd694e7573a0ccd0da0 netfs: Mark folios with COPY_TO_CACHE whilst issuing subreqs
:::::: TO: David Howells <dhowells@redhat.com>
:::::: CC: Christian Brauner <brauner@kernel.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-09-08 22:11 [dhowells-fs:netfs-next-1 6/8] fs/netfs/buffered_read.c:245:26: error: use of undeclared identifier 'NETFS_RREQ_USE_PGPRIV2' kernel test robot
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