Commit 979d2433 authored Apr 18, 2019 by Liu Bo Committed by Greg Kroah-Hartman May 25, 2019

fuse: honor RLIMIT_FSIZE in fuse_file_fallocate



commit 0cbade024ba501313da3b7e5dd2a188a6bc491b5 upstream.

fstests generic/228 reported this failure that fuse fallocate does not
honor what 'ulimit -f' has set.

This adds the necessary inode_newsize_ok() check.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Fixes: 05ba1f08 ("fuse: add FALLOCATE operation")
Cc: <stable@vger.kernel.org> # v3.5
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent a452f733

fs/fuse/file.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -2975,6 +2975,13 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
		}
		}

		if (!(mode & FALLOC_FL_KEEP_SIZE) &&
		offset + length > i_size_read(inode)) {
		err = inode_newsize_ok(inode, offset + length);
		if (err)
		return err;
		}

		if (!(mode & FALLOC_FL_KEEP_SIZE))
		set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);