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| author | Carsten Otte <cotte@de.ibm.com> | 2005-06-23 22:05:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-24 00:06:41 -0700 |
| commit | 6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e (patch) | |
| tree | fbd7f82fea19fd89e09312fe89919774b94a6efe /fs/ext2/xip.h | |
| parent | ceffc078528befc008c6f2c2c4decda79eabd534 (diff) | |
| download | op-kernel-dev-6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e.zip op-kernel-dev-6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e.tar.gz | |
[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.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/ext2/xip.h b/fs/ext2/xip.h new file mode 100644 index 0000000..aa85331 --- /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 |
