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authorCarsten Otte <cotte@de.ibm.com>2005-06-23 22:05:26 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 00:06:41 -0700
commit6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e (patch)
treefbd7f82fea19fd89e09312fe89919774b94a6efe /include
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 'include')
-rw-r--r--include/linux/ext2_fs.h25
-rw-r--r--include/linux/fs.h5
2 files changed, 18 insertions, 12 deletions
diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h
index fab43527e597..a657130ba03a 100644
--- a/include/linux/ext2_fs.h
+++ b/include/linux/ext2_fs.h
@@ -300,18 +300,19 @@ struct ext2_inode {
/*
* Mount flags
*/
-#define EXT2_MOUNT_CHECK 0x0001 /* Do mount-time checks */
-#define EXT2_MOUNT_OLDALLOC 0x0002 /* Don't use the new Orlov allocator */
-#define EXT2_MOUNT_GRPID 0x0004 /* Create files with directory's group */
-#define EXT2_MOUNT_DEBUG 0x0008 /* Some debugging messages */
-#define EXT2_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */
-#define EXT2_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
-#define EXT2_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
-#define EXT2_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */
-#define EXT2_MOUNT_NOBH 0x0100 /* No buffer_heads */
-#define EXT2_MOUNT_NO_UID32 0x0200 /* Disable 32-bit UIDs */
-#define EXT2_MOUNT_XATTR_USER 0x4000 /* Extended user attributes */
-#define EXT2_MOUNT_POSIX_ACL 0x8000 /* POSIX Access Control Lists */
+#define EXT2_MOUNT_CHECK 0x000001 /* Do mount-time checks */
+#define EXT2_MOUNT_OLDALLOC 0x000002 /* Don't use the new Orlov allocator */
+#define EXT2_MOUNT_GRPID 0x000004 /* Create files with directory's group */
+#define EXT2_MOUNT_DEBUG 0x000008 /* Some debugging messages */
+#define EXT2_MOUNT_ERRORS_CONT 0x000010 /* Continue on errors */
+#define EXT2_MOUNT_ERRORS_RO 0x000020 /* Remount fs ro on errors */
+#define EXT2_MOUNT_ERRORS_PANIC 0x000040 /* Panic on errors */
+#define EXT2_MOUNT_MINIX_DF 0x000080 /* Mimics the Minix statfs */
+#define EXT2_MOUNT_NOBH 0x000100 /* No buffer_heads */
+#define EXT2_MOUNT_NO_UID32 0x000200 /* Disable 32-bit UIDs */
+#define EXT2_MOUNT_XATTR_USER 0x004000 /* Extended user attributes */
+#define EXT2_MOUNT_POSIX_ACL 0x008000 /* POSIX Access Control Lists */
+#define EXT2_MOUNT_XIP 0x010000 /* Execute in place */
#define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt
#define set_opt(o, opt) o |= EXT2_MOUNT_##opt
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 79c0fafc0211..7e0501895f35 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1513,6 +1513,11 @@ extern ssize_t xip_file_aio_write(struct kiocb *iocb, const char __user *buf,
extern ssize_t xip_file_writev(struct file *file, const struct iovec *iov,
unsigned long nr_segs, loff_t *ppos);
extern int xip_truncate_page(struct address_space *mapping, loff_t from);
+#else
+static inline int xip_truncate_page(struct address_space *mapping, loff_t from)
+{
+ return 0;
+}
#endif
static inline void do_generic_file_read(struct file * filp, loff_t *ppos,