diff mbox series

[5.10,448/563] fuse: Pass correct lend value to filemap_write_and_wait_range()

Message ID 20220124184039.952113162@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 24, 2022, 6:43 p.m. UTC 
From: Xie Yongji <xieyongji@bytedance.com>

commit e388164ea385f04666c4633f5dc4f951fca71890 upstream.

The acceptable maximum value of lend parameter in
filemap_write_and_wait_range() is LLONG_MAX rather than -1. And there is
also some logic depending on LLONG_MAX check in write_cache_pages(). So
let's pass LLONG_MAX to filemap_write_and_wait_range() in
fuse_writeback_range() instead.

Fixes: 59bda8ecee2f ("fuse: flush extending writes")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Cc: <stable@vger.kernel.org> # v5.15
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/file.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3251,7 +3251,7 @@  fuse_direct_IO(struct kiocb *iocb, struc
 
 static int fuse_writeback_range(struct inode *inode, loff_t start, loff_t end)
 {
-	int err = filemap_write_and_wait_range(inode->i_mapping, start, -1);
+	int err = filemap_write_and_wait_range(inode->i_mapping, start, LLONG_MAX);
 
 	if (!err)
 		fuse_sync_writes(inode);