The quilt patch titled
Subject: buffer: improve bdev_getblk documentation
has been removed from the -mm tree. Its filename was
buffer-improve-bdev_getblk-documentation.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: improve bdev_getblk documentation
Date: Tue, 16 Apr 2024 04:17:51 +0100
Add some more information about the state of the buffer_head returned.
Link: https://lkml.kernel.org/r/20240416031754.4076917-8-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/buffer.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/fs/buffer.c~buffer-improve-bdev_getblk-documentation
+++ a/fs/buffer.c
@@ -1424,6 +1424,11 @@ EXPORT_SYMBOL(__find_get_block);
* @size: The size of buffer_heads for this @bdev.
* @gfp: The memory allocation flags to use.
*
+ * The returned buffer head has its reference count incremented, but is
+ * not locked. The caller should call brelse() when it has finished
+ * with the buffer. The buffer may not be uptodate. If needed, the
+ * caller can bring it uptodate either by reading it or overwriting it.
+ *
* Return: The buffer head, or NULL if memory could not be allocated.
*/
struct buffer_head *bdev_getblk(struct block_device *bdev, sector_t block,
_
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
