From: Alan Cox <alan@linux.intel.com>
Date: Thu, 14 Dec 2017 00:45:14 +0000 (+0000)
Subject: inodeL small optimization
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=1ee0f3a6de2c57944f78a5a31a9bc756da75250e;p=FUZIX.git

inodeL small optimization

Pipes always wrap at 18 * 512 bytes so we don't need to do a 32bit comparison
here
---

diff --git a/Kernel/inode.c b/Kernel/inode.c
index c39e6e45..86ea99ab 100644
--- a/Kernel/inode.c
+++ b/Kernel/inode.c
@@ -107,7 +107,7 @@ void readi(inoptr ino, uint8_t flag)
 #endif                        
 			udata.u_base += amount;
 			udata.u_offset += amount;
-			if (ispipe && udata.u_offset >= 18 * BLKSIZE)
+			if (ispipe && (uint16_t)udata.u_offset >= 18 * BLKSIZE)
 				udata.u_offset = 0;
 			toread -= amount;
 			if (ispipe) {
@@ -212,7 +212,7 @@ void writei(inoptr ino, uint8_t flag)
 			udata.u_base += amount;
 			udata.u_offset += amount;
 			if (ispipe) {
-				if (udata.u_offset >= 18 * 512)
+				if ((uint16_t)udata.u_offset >= 18 * 512)
 					udata.u_offset = 0;
 				ino->c_node.i_size += amount;
 				/* Wake up any readers */