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authorThomas Gleixner <tglx@tglx.tec.linutronix.de>2005-06-26 23:20:36 +0200
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-06-26 23:20:36 +0200
commit7ca6448dbfb398bba36eda3c01bc14b86c3675be (patch)
tree82d934ebf07f22a2c64c3b6d82ec24082878b43a /fs/ext2/xip.h
parentf1f67a9874f1a4bba1adff6d694aa52e5f52ff1a (diff)
parent7d681b23d6cc14a8c026ea6756242cb522cbbcae (diff)
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Merge with rsync://fileserver/linux
Update to Linus latest
Diffstat (limited to 'fs/ext2/xip.h')
-rw-r--r--fs/ext2/xip.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/ext2/xip.h b/fs/ext2/xip.h
new file mode 100644
index 000000000000..aa85331d6c56
--- /dev/null
+++ b/fs/ext2/xip.h
@@ -0,0 +1,25 @@
+/*
+ * linux/fs/ext2/xip.h
+ *
+ * Copyright (C) 2005 IBM Corporation
+ * Author: Carsten Otte (cotte@de.ibm.com)
+ */
+
+#ifdef CONFIG_EXT2_FS_XIP
+extern void ext2_xip_verify_sb (struct super_block *);
+extern int ext2_clear_xip_target (struct inode *, int);
+
+static inline int ext2_use_xip (struct super_block *sb)
+{
+ struct ext2_sb_info *sbi = EXT2_SB(sb);
+ return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
+}
+struct page* ext2_get_xip_page (struct address_space *, sector_t, int);
+#define mapping_is_xip(map) unlikely(map->a_ops->get_xip_page)
+#else
+#define mapping_is_xip(map) 0
+#define ext2_xip_verify_sb(sb) do { } while (0)
+#define ext2_use_xip(sb) 0
+#define ext2_clear_xip_target(inode, chain) 0
+#define ext2_get_xip_page NULL
+#endif