orangefs: Remove ``aligned'' upcall and downcall length macros.

There was previously MAX_ALIGNED_DEV_REQ_(UP|DOWN)SIZE macros which
evaluated to MAX_DEV_REQ_(UP|DOWN)SIZE+8. As it is unclear what this is
for, other than creating a situation where we accept more data than we
can parse, it is removed.
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Martin Brandenburg <martin@omnibond.com>

fs/orangefs/devorangefs-req.c

@@ -120,10 +120,10 @@ static ssize_t orangefs_devreq_read(struct file *file,
 	}
 
 	/*
-	 * The client will do an ioctl to find MAX_ALIGNED_DEV_REQ_UPSIZE, then
+	 * The client will do an ioctl to find MAX_DEV_REQ_UPSIZE, then
 	 * always read with that size buffer.
 	 */
-	if (count != MAX_ALIGNED_DEV_REQ_UPSIZE) {
+	if (count != MAX_DEV_REQ_UPSIZE) {
 		gossip_err("orangefs: client-core tried to read wrong size\n");
 		return -EINVAL;
 	}
@@ -226,7 +226,7 @@ static ssize_t orangefs_devreq_read(struct file *file,
 		goto error;
 
 	/* The client only asks to read one size buffer. */
-	return MAX_ALIGNED_DEV_REQ_UPSIZE;
+	return MAX_DEV_REQ_UPSIZE;
 error:
 	/*
 	 * We were unable to copy the op data to the client. Put the op back in
@@ -258,7 +258,7 @@ static ssize_t orangefs_devreq_writev(struct file *file,
 	void *buffer = NULL;
 	void *ptr = NULL;
 	unsigned long i = 0;
-	int num_remaining = MAX_ALIGNED_DEV_REQ_DOWNSIZE;
+	int num_remaining = MAX_DEV_REQ_DOWNSIZE;
 	int ret = 0;
 	/* num elements in iovec without trailer */
 	int notrailer_count = 4;
@@ -661,8 +661,8 @@ static inline long check_ioctl_command(unsigned int command)
 static long dispatch_ioctl_command(unsigned int command, unsigned long arg)
 {
 	static __s32 magic = ORANGEFS_DEVREQ_MAGIC;
-	static __s32 max_up_size = MAX_ALIGNED_DEV_REQ_UPSIZE;
-	static __s32 max_down_size = MAX_ALIGNED_DEV_REQ_DOWNSIZE;
+	static __s32 max_up_size = MAX_DEV_REQ_UPSIZE;
+	static __s32 max_down_size = MAX_DEV_REQ_DOWNSIZE;
 	struct ORANGEFS_dev_map_desc user_desc;
 	int ret = 0;
 	struct dev_mask_info_s mask_info = { 0 };

fs/orangefs/orangefs-cache.c

@@ -166,7 +166,7 @@ void op_release(struct orangefs_kernel_op_s *orangefs_op)
 int dev_req_cache_initialize(void)
 {
 	dev_req_cache = kmem_cache_create("orangefs_devreqcache",
-					  MAX_ALIGNED_DEV_REQ_DOWNSIZE,
+					  MAX_DEV_REQ_DOWNSIZE,
 					  0,
 					  ORANGEFS_CACHE_CREATE_FLAGS,
 					  NULL);
@@ -192,7 +192,7 @@ void *dev_req_alloc(void)
 	if (buffer == NULL)
 		gossip_err("Failed to allocate from dev_req_cache\n");
 	else
-		memset(buffer, 0, sizeof(MAX_ALIGNED_DEV_REQ_DOWNSIZE));
+		memset(buffer, 0, sizeof(MAX_DEV_REQ_DOWNSIZE));
 	return buffer;
 }
 

fs/orangefs/orangefs-kernel.h

@@ -80,29 +80,11 @@ sizeof(__u64) + sizeof(struct orangefs_upcall_s))
 #define MAX_DEV_REQ_DOWNSIZE (2*sizeof(__s32) + \
 sizeof(__u64) + sizeof(struct orangefs_downcall_s))
 
-#define BITS_PER_LONG_DIV_8 (BITS_PER_LONG >> 3)
-
 /* borrowed from irda.h */
 #ifndef MSECS_TO_JIFFIES
 #define MSECS_TO_JIFFIES(ms) (((ms)*HZ+999)/1000)
 #endif
 
-#define MAX_ALIGNED_DEV_REQ_UPSIZE				\
-		(MAX_DEV_REQ_UPSIZE +				\
-			((((MAX_DEV_REQ_UPSIZE /		\
-				(BITS_PER_LONG_DIV_8)) *	\
-				(BITS_PER_LONG_DIV_8)) +	\
-			    (BITS_PER_LONG_DIV_8)) -		\
-			MAX_DEV_REQ_UPSIZE))
-
-#define MAX_ALIGNED_DEV_REQ_DOWNSIZE				\
-		(MAX_DEV_REQ_DOWNSIZE +				\
-			((((MAX_DEV_REQ_DOWNSIZE /		\
-				(BITS_PER_LONG_DIV_8)) *	\
-				(BITS_PER_LONG_DIV_8)) +	\
-			    (BITS_PER_LONG_DIV_8)) -		\
-			MAX_DEV_REQ_DOWNSIZE))
-
 /*
  * valid orangefs kernel operation states
  *