The quilt patch titled
Subject: buffer: add kernel-doc for bforget() and __bforget()
has been removed from the -mm tree. Its filename was
buffer-add-kernel-doc-for-bforget-and-__bforget.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: buffer: add kernel-doc for bforget() and __bforget()
Date: Tue, 16 Apr 2024 04:17:50 +0100
Distinguish these functions from brelse() and __brelse().
Link: https://lkml.kernel.org/r/20240416031754.4076917-7-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/buffer.c | 9 ++++++---
include/linux/buffer_head.h | 10 ++++++++++
2 files changed, 16 insertions(+), 3 deletions(-)
--- a/fs/buffer.c~buffer-add-kernel-doc-for-bforget-and-__bforget
+++ a/fs/buffer.c
@@ -1242,9 +1242,12 @@ void __brelse(struct buffer_head *bh)
}
EXPORT_SYMBOL(__brelse);
-/*
- * bforget() is like brelse(), except it discards any
- * potentially dirty data.
+/**
+ * __bforget - Discard any dirty data in a buffer.
+ * @bh: The buffer to forget.
+ *
+ * This variant of bforget() can be called if @bh is guaranteed to not
+ * be NULL.
*/
void __bforget(struct buffer_head *bh)
{
--- a/include/linux/buffer_head.h~buffer-add-kernel-doc-for-bforget-and-__bforget
+++ a/include/linux/buffer_head.h
@@ -325,6 +325,16 @@ static inline void brelse(struct buffer_
__brelse(bh);
}
+/**
+ * bforget - Discard any dirty data in a buffer.
+ * @bh: The buffer to forget.
+ *
+ * Call this function instead of brelse() if the data written to a buffer
+ * no longer needs to be written back. It will clear the buffer's dirty
+ * flag so writeback of this buffer will be skipped.
+ *
+ * Context: Any context.
+ */
static inline void bforget(struct buffer_head *bh)
{
if (bh)
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
squashfs-convert-squashfs_symlink_read_folio-to-use-folio-apis.patch
squashfs-remove-calls-to-set-the-folio-error-flag.patch
nilfs2-remove-calls-to-folio_set_error-and-folio_clear_error.patch
