linux-kernel - [PATCH v2 04/28] fs: Rename AS_THP_SUPPORT and mapping_thp

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Date:   Mon,  8 Nov 2021 04:05:27 +0000
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     "Darrick J . Wong " <djwong@...nel.org>
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>,
        Christoph Hellwig <hch@...radead.org>
Subject: [PATCH v2 04/28] fs: Rename AS_THP_SUPPORT and mapping_thp_support

These are now indicators of multi-page folio support, not THP support.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 include/linux/pagemap.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 471f0c422831..2ad10e1fd224 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -34,7 +34,7 @@ enum mapping_flags {
 	AS_EXITING	= 4, 	/* final truncate in progress */
 	/* writeback related tags are not used */
 	AS_NO_WRITEBACK_TAGS = 5,
-	AS_THP_SUPPORT = 6,	/* THPs supported */
+	AS_LARGE_FOLIO_SUPPORT = 6,
 };
 
 /**
@@ -139,12 +139,12 @@ static inline void mapping_set_gfp_mask(struct address_space *m, gfp_t mask)
  */
 static inline void mapping_set_large_folios(struct address_space *mapping)
 {
-	__set_bit(AS_THP_SUPPORT, &mapping->flags);
+	__set_bit(AS_LARGE_FOLIO_SUPPORT, &mapping->flags);
 }
 
-static inline bool mapping_thp_support(struct address_space *mapping)
+static inline bool mapping_large_folio_support(struct address_space *mapping)
 {
-	return test_bit(AS_THP_SUPPORT, &mapping->flags);
+	return test_bit(AS_LARGE_FOLIO_SUPPORT, &mapping->flags);
 }
 
 static inline int filemap_nr_thps(struct address_space *mapping)
@@ -159,7 +159,7 @@ static inline int filemap_nr_thps(struct address_space *mapping)
 static inline void filemap_nr_thps_inc(struct address_space *mapping)
 {
 #ifdef CONFIG_READ_ONLY_THP_FOR_FS
-	if (!mapping_thp_support(mapping))
+	if (!mapping_large_folio_support(mapping))
 		atomic_inc(&mapping->nr_thps);
 #else
 	WARN_ON_ONCE(1);
@@ -169,7 +169,7 @@ static inline void filemap_nr_thps_inc(struct address_space *mapping)
 static inline void filemap_nr_thps_dec(struct address_space *mapping)
 {
 #ifdef CONFIG_READ_ONLY_THP_FOR_FS
-	if (!mapping_thp_support(mapping))
+	if (!mapping_large_folio_support(mapping))
 		atomic_dec(&mapping->nr_thps);
 #else
 	WARN_ON_ONCE(1);
-- 
2.33.0