[merged] ramfs-fix-nommu-mmap-with-gaps-in-the-page-cache.patch removed from -mm tree

[merged] ramfs-fix-nommu-mmap-with-gaps-in-the-page-cache.patch removed from -mm tree

[akpm]

The patch titled
     Subject: ramfs: fix nommu mmap with gaps in the page cache
has been removed from the -mm tree.  Its filename was
     ramfs-fix-nommu-mmap-with-gaps-in-the-page-cache.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Matthew Wilcox (Oracle) <willy@infradead.org>
Subject: ramfs: fix nommu mmap with gaps in the page cache

ramfs needs to check that pages are both physically contiguous and
contiguous in the file.  If the page cache happens to have, eg, page A for
index 0 of the file, no page for index 1, and page A+1 for index 2, then
an mmap of the first two pages of the file will succeed when it should
fail.

Link: https://lkml.kernel.org/r/20200914122239.GO6583@casper.infradead.org
Fixes: 642fb4d1f1dd ("[PATCH] NOMMU: Provide shared-writable mmap support on ramfs")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/ramfs/file-nommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ramfs/file-nommu.c~ramfs-fix-nommu-mmap-with-gaps-in-the-page-cache
+++ a/fs/ramfs/file-nommu.c
@@ -224,7 +224,7 @@ static unsigned long ramfs_nommu_get_unm
 	if (!pages)
 		goto out_free;
 
-	nr = find_get_pages(inode->i_mapping, &pgoff, lpages, pages);
+	nr = find_get_pages_contig(inode->i_mapping, pgoff, lpages, pages);
 	if (nr != lpages)
 		goto out_free_pages; /* leave if some pages were missing */
 
_

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

mm-update-the-documentation-for-vfree.patch