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* [merged mm-stable] shmem-convert-shmem_write_begin-to-use-shmem_get_folio.patch removed from -mm tree
@ 2022-10-03 21:05 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2022-10-03 21:05 UTC (permalink / raw)
  To: mm-commits, willy, akpm


The quilt patch titled
     Subject: shmem: convert shmem_write_begin() to use shmem_get_folio()
has been removed from the -mm tree.  Its filename was
     shmem-convert-shmem_write_begin-to-use-shmem_get_folio.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@infradead.org>
Subject: shmem: convert shmem_write_begin() to use shmem_get_folio()
Date: Fri, 2 Sep 2022 20:46:22 +0100

Use a folio throughout this function, saving a couple of calls to
compound_head().

Link: https://lkml.kernel.org/r/20220902194653.1739778-27-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/shmem.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/mm/shmem.c~shmem-convert-shmem_write_begin-to-use-shmem_get_folio
+++ a/mm/shmem.c
@@ -2498,6 +2498,7 @@ shmem_write_begin(struct file *file, str
 	struct inode *inode = mapping->host;
 	struct shmem_inode_info *info = SHMEM_I(inode);
 	pgoff_t index = pos >> PAGE_SHIFT;
+	struct folio *folio;
 	int ret = 0;
 
 	/* i_rwsem is held by caller */
@@ -2509,14 +2510,15 @@ shmem_write_begin(struct file *file, str
 			return -EPERM;
 	}
 
-	ret = shmem_getpage(inode, index, pagep, SGP_WRITE);
+	ret = shmem_get_folio(inode, index, &folio, SGP_WRITE);
 
 	if (ret)
 		return ret;
 
+	*pagep = folio_file_page(folio, index);
 	if (PageHWPoison(*pagep)) {
-		unlock_page(*pagep);
-		put_page(*pagep);
+		folio_unlock(folio);
+		folio_put(folio);
 		*pagep = NULL;
 		return -EIO;
 	}
_

Patches currently in -mm which might be from willy@infradead.org are



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2022-10-03 21:05 [merged mm-stable] shmem-convert-shmem_write_begin-to-use-shmem_get_folio.patch removed from -mm tree Andrew Morton

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