Revert "9p: Enable multipage folios"

martinetd · torvalds · commit f009e946c155 · 2024-10-24T11:24:05.000-07:00
This reverts commit 1325e4a. using multipage folios apparently break some madvise operations like MADV_PAGEOUT which do not reliably unload the specified page anymore, Revert the patch until that is figured out. Reported-by: Andrii Nakryiko <andrii@kernel.org> Fixes: 1325e4a ("9p: Enable multipage folios") Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
@@ -295,7 +295,6 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
 			inode->i_op = &v9fs_file_inode_operations;
 			inode->i_fop = &v9fs_file_operations;
 		}
-		mapping_set_large_folios(inode->i_mapping);
 
 		break;
 	case S_IFLNK:

Original file line number	Diff line number	Diff line change
`@@ -295,7 +295,6 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,`
`295`	`295`	`inode->i_op = &v9fs_file_inode_operations;`
`296`	`296`	`inode->i_fop = &v9fs_file_operations;`
`297`	`297`	`}`
`298`		`- mapping_set_large_folios(inode->i_mapping);`
`299`	`298`
`300`	`299`	`break;`
`301`	`300`	`case S_IFLNK:`