Commit dcfd95cb authored Jan 20, 2026 by Joanne Koong Committed by Miklos Szeredi Mar 03, 2026

fuse: use DIV_ROUND_UP() for page count calculations



Use DIV_ROUND_UP() instead of manually computing round-up division
calculations.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Horst Birthelmer <hbirthelmer@ddn.com>
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

parent 25307ca5

fs/fuse/dev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1884,7 +1884,7 @@ static int fuse_retrieve(struct fuse_mount fm, struct inode inode,
		else if (num > file_size - pos)
		num = file_size - pos;

		num_pages = (num + offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
		num_pages = DIV_ROUND_UP(num + offset, PAGE_SIZE);
		num_pages = min(num_pages, fc->max_pages);
		num = min(num, num_pages << PAGE_SHIFT);

fs/fuse/file.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2176,7 +2176,7 @@ static bool fuse_folios_need_send(struct fuse_conn *fc, loff_t pos,
		WARN_ON(!ap->num_folios);

		/* Reached max pages */
		if ((bytes + PAGE_SIZE - 1) >> PAGE_SHIFT > fc->max_pages)
		if (DIV_ROUND_UP(bytes, PAGE_SIZE) > fc->max_pages)
		return true;

		if (bytes > max_bytes)