linux-ext4 - [PATCH 4/5] ext4: Convert ac_bitmap_page to ac_bitmap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue, 16 Apr 2024 18:28:57 +0100
From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
To: "Theodore Ts'o" <tytso@....edu>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 4/5] ext4: Convert ac_bitmap_page to ac_bitmap_folio

This just carries around the bd_bitmap_folio so should also be a folio.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/ext4/mballoc.c | 8 ++++----
 fs/ext4/mballoc.h | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 50bdf3646d45..b2ea016f259d 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2153,8 +2153,8 @@ static void ext4_mb_use_best_found(struct ext4_allocation_context *ac,
 	 * double allocate blocks. The reference is dropped
 	 * in ext4_mb_release_context
 	 */
-	ac->ac_bitmap_page = &e4b->bd_bitmap_folio->page;
-	get_page(ac->ac_bitmap_page);
+	ac->ac_bitmap_folio = e4b->bd_bitmap_folio;
+	folio_get(ac->ac_bitmap_folio);
 	ac->ac_buddy_page = &e4b->bd_buddy_folio->page;
 	get_page(ac->ac_buddy_page);
 	/* store last allocated for subsequent stream allocation */
@@ -5993,8 +5993,8 @@ static void ext4_mb_release_context(struct ext4_allocation_context *ac)
 
 		ext4_mb_put_pa(ac, ac->ac_sb, pa);
 	}
-	if (ac->ac_bitmap_page)
-		put_page(ac->ac_bitmap_page);
+	if (ac->ac_bitmap_folio)
+		folio_put(ac->ac_bitmap_folio);
 	if (ac->ac_buddy_page)
 		put_page(ac->ac_buddy_page);
 	if (ac->ac_flags & EXT4_MB_HINT_GROUP_ALLOC)
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 720fb277abd2..ec1348fe1c04 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -204,7 +204,7 @@ struct ext4_allocation_context {
 	__u8 ac_2order;		/* if request is to allocate 2^N blocks and
 				 * N > 0, the field stores N, otherwise 0 */
 	__u8 ac_op;		/* operation, for history only */
-	struct page *ac_bitmap_page;
+	struct folio *ac_bitmap_folio;
 	struct page *ac_buddy_page;
 	struct ext4_prealloc_space *ac_pa;
 	struct ext4_locality_group *ac_lg;
-- 
2.43.0