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authorCarsten Otte <cotte@de.ibm.com>2005-06-24 01:05:26 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 03:06:41 -0400
commit6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e (patch)
treefbd7f82fea19fd89e09312fe89919774b94a6efe /fs/ext2/xip.h
parentceffc078528befc008c6f2c2c4decda79eabd534 (diff)
[PATCH] xip: ext2: execute in place
These are the ext2 related parts. Ext2 now uses the xip_* file operations along with the get_xip_page aop when mounted with -o xip. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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 @@
1/*
2 * linux/fs/ext2/xip.h
3 *
4 * Copyright (C) 2005 IBM Corporation
5 * Author: Carsten Otte (cotte@de.ibm.com)
6 */
7
8#ifdef CONFIG_EXT2_FS_XIP
9extern void ext2_xip_verify_sb (struct super_block *);
10extern int ext2_clear_xip_target (struct inode *, int);
11
12static inline int ext2_use_xip (struct super_block *sb)
13{
14 struct ext2_sb_info *sbi = EXT2_SB(sb);
15 return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
16}
17struct page* ext2_get_xip_page (struct address_space *, sector_t, int);
18#define mapping_is_xip(map) unlikely(map->a_ops->get_xip_page)
19#else
20#define mapping_is_xip(map) 0
21#define ext2_xip_verify_sb(sb) do { } while (0)
22#define ext2_use_xip(sb) 0
23#define ext2_clear_xip_target(inode, chain) 0
24#define ext2_get_xip_page NULL
25#endif