X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=mm%2Fswapfile.c;h=8e206cea0f5ed10001a24a5c9fd9db3c5d0f1fc1;hb=881e4aabe4c6b3fce93674b67c6adc646fe2683b;hp=e70d6c6d6fee6f626a0c247c53f213413454cd0e;hpb=9262e9149f346a5443300f8c451b8e7631e81a42;p=linux-2.6-omap-h63xx.git

diff --git a/mm/swapfile.c b/mm/swapfile.c
index e70d6c6d6fe..8e206cea0f5 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -442,11 +442,12 @@ int swap_type_of(dev_t device)
 
 		if (!(swap_info[i].flags & SWP_WRITEOK))
 			continue;
+
 		if (!device) {
 			spin_unlock(&swap_lock);
 			return i;
 		}
-		inode = swap_info->swap_file->f_dentry->d_inode;
+		inode = swap_info[i].swap_file->f_dentry->d_inode;
 		if (S_ISBLK(inode->i_mode) &&
 		    device == MKDEV(imajor(inode), iminor(inode))) {
 			spin_unlock(&swap_lock);
@@ -1273,10 +1274,13 @@ static void *swap_start(struct seq_file *swap, loff_t *pos)
 
 	mutex_lock(&swapon_mutex);
 
+	if (!l)
+		return SEQ_START_TOKEN;
+
 	for (i = 0; i < nr_swapfiles; i++, ptr++) {
 		if (!(ptr->flags & SWP_USED) || !ptr->swap_map)
 			continue;
-		if (!l--)
+		if (!--l)
 			return ptr;
 	}
 
@@ -1285,10 +1289,17 @@ static void *swap_start(struct seq_file *swap, loff_t *pos)
 
 static void *swap_next(struct seq_file *swap, void *v, loff_t *pos)
 {
-	struct swap_info_struct *ptr = v;
+	struct swap_info_struct *ptr;
 	struct swap_info_struct *endptr = swap_info + nr_swapfiles;
 
-	for (++ptr; ptr < endptr; ptr++) {
+	if (v == SEQ_START_TOKEN)
+		ptr = swap_info;
+	else {
+		ptr = v;
+		ptr++;
+	}
+
+	for (; ptr < endptr; ptr++) {
 		if (!(ptr->flags & SWP_USED) || !ptr->swap_map)
 			continue;
 		++*pos;
@@ -1309,8 +1320,10 @@ static int swap_show(struct seq_file *swap, void *v)
 	struct file *file;
 	int len;
 
-	if (v == swap_info)
-		seq_puts(swap, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
+	if (ptr == SEQ_START_TOKEN) {
+		seq_puts(swap,"Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n");
+		return 0;
+	}
 
 	file = ptr->swap_file;
 	len = seq_path(swap, file->f_vfsmnt, file->f_dentry, " \t\n\\");
@@ -1722,13 +1735,14 @@ get_swap_info_struct(unsigned type)
  */
 int valid_swaphandles(swp_entry_t entry, unsigned long *offset)
 {
-	int ret = 0, i = 1 << page_cluster;
+	int our_page_cluster = page_cluster;
+	int ret = 0, i = 1 << our_page_cluster;
 	unsigned long toff;
 	struct swap_info_struct *swapdev = swp_type(entry) + swap_info;
 
-	if (!page_cluster)	/* no readahead */
+	if (!our_page_cluster)	/* no readahead */
 		return 0;
-	toff = (swp_offset(entry) >> page_cluster) << page_cluster;
+	toff = (swp_offset(entry) >> our_page_cluster) << our_page_cluster;
 	if (!toff)		/* first page is swap header */
 		toff++, i--;
 	*offset = toff;