WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#147: 
new file mode 100644

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#414: FILE: mm/page_frag_cache.c:55:
+	VM_BUG_ON_PAGE(page_ref_count(page) == 0, page);

total: 0 errors, 2 warnings, 0 checks, 433 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 0821db20b2cf ("mm: move the page fragment allocator from page_alloc into its own file") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 2 warnings, 0 checks, 433 lines checked