The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

Possible dependencies:

4a6f278d4827 ("fuse: add file_modified() to fallocate")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 4a6f278d4827b59ba26ceae0ff4529ee826aa258 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi mszeredi@redhat.com Date: Fri, 28 Oct 2022 14:25:20 +0200 Subject: [PATCH] fuse: add file_modified() to fallocate

Add missing file_modified() call to fuse_file_fallocate(). Without this fallocate on fuse failed to clear privileges.

Fixes: 05ba1f082300 ("fuse: add FALLOCATE operation") Cc: stable@vger.kernel.org Signed-off-by: Miklos Szeredi mszeredi@redhat.com

diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 1a3afd469e3a..71bfb663aac5 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -3001,6 +3001,10 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset, goto out; }

+ err = file_modified(file); + if (err) + goto out; + if (!(mode & FALLOC_FL_KEEP_SIZE)) set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);