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authorJason Gunthorpe <jgg@nvidia.com>2025-05-26 15:32:29 -0300
committerJason Gunthorpe <jgg@nvidia.com>2025-05-26 15:33:52 -0300
commitef2233850edc4cc0d5fc6136fcdb004a1ddfa7db (patch)
tree8ccfb0731d7ddf7d384c37b56ee15a22db025c0a /include/linux/mm.h
parent260ce16e579d375ba8f1ac945308343522f98d50 (diff)
parent0ff41df1cb268fc69e703a08a57ee14ae967d0ca (diff)
Merge tag 'v6.15' into rdma.git for-next
Following patches need the RDMA rc branch since we are past the RC cycle now. Merge conflicts resolved based on Linux-next: - For RXE odp changes keep for-next version and fixup new places that need to call is_odp_mr() https://lore.kernel.org/r/20250422143019.500201bd@canb.auug.org.au https://lore.kernel.org/r/20250514122455.3593b083@canb.auug.org.au - irdma is keeping the while/kfree bugfix from -rc and the pf/cdev_info change from for-next https://lore.kernel.org/r/20250513130630.280ee6c5@canb.auug.org.au Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h19
1 files changed, 18 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b7f13f087954..fdda6b16263b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -385,7 +385,7 @@ extern unsigned int kobjsize(const void *objp);
#endif
#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_MINOR
-# define VM_UFFD_MINOR_BIT 38
+# define VM_UFFD_MINOR_BIT 41
# define VM_UFFD_MINOR BIT(VM_UFFD_MINOR_BIT) /* UFFD minor faults */
#else /* !CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */
# define VM_UFFD_MINOR VM_NONE
@@ -1218,6 +1218,23 @@ static inline unsigned int folio_order(const struct folio *folio)
return folio_large_order(folio);
}
+/**
+ * folio_reset_order - Reset the folio order and derived _nr_pages
+ * @folio: The folio.
+ *
+ * Reset the order and derived _nr_pages to 0. Must only be used in the
+ * process of splitting large folios.
+ */
+static inline void folio_reset_order(struct folio *folio)
+{
+ if (WARN_ON_ONCE(!folio_test_large(folio)))
+ return;
+ folio->_flags_1 &= ~0xffUL;
+#ifdef NR_PAGES_IN_LARGE_FOLIO
+ folio->_nr_pages = 0;
+#endif
+}
+
#include <linux/huge_mm.h>
/*