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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/coda_linux.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/coda_linux.h')
-rw-r--r--include/linux/coda_linux.h102
1 files changed, 102 insertions, 0 deletions
diff --git a/include/linux/coda_linux.h b/include/linux/coda_linux.h
new file mode 100644
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+++ b/include/linux/coda_linux.h
@@ -0,0 +1,102 @@
+/*
+ * Coda File System, Linux Kernel module
+ *
+ * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University
+ * Linux modifications (C) 1996, Peter J. Braam
+ * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University
+ *
+ * Carnegie Mellon University encourages users of this software to
+ * contribute improvements to the Coda project.
+ */
+
+#ifndef _LINUX_CODA_FS
+#define _LINUX_CODA_FS
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/coda_fs_i.h>
+
+/* operations */
+extern struct inode_operations coda_dir_inode_operations;
+extern struct inode_operations coda_file_inode_operations;
+extern struct inode_operations coda_ioctl_inode_operations;
+
+extern struct address_space_operations coda_file_aops;
+extern struct address_space_operations coda_symlink_aops;
+
+extern struct file_operations coda_dir_operations;
+extern struct file_operations coda_file_operations;
+extern struct file_operations coda_ioctl_operations;
+
+/* operations shared over more than one file */
+int coda_open(struct inode *i, struct file *f);
+int coda_flush(struct file *f);
+int coda_release(struct inode *i, struct file *f);
+int coda_permission(struct inode *inode, int mask, struct nameidata *nd);
+int coda_revalidate_inode(struct dentry *);
+int coda_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+int coda_setattr(struct dentry *, struct iattr *);
+
+/* global variables */
+extern int coda_fake_statfs;
+
+/* this file: heloers */
+static __inline__ struct CodaFid *coda_i2f(struct inode *);
+static __inline__ char *coda_i2s(struct inode *);
+static __inline__ void coda_flag_inode(struct inode *, int flag);
+char *coda_f2s(struct CodaFid *f);
+int coda_isroot(struct inode *i);
+int coda_iscontrol(const char *name, size_t length);
+
+void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
+void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
+unsigned short coda_flags_to_cflags(unsigned short);
+
+/* sysctl.h */
+void coda_sysctl_init(void);
+void coda_sysctl_clean(void);
+
+#define CODA_ALLOC(ptr, cast, size) do { \
+ if (size < PAGE_SIZE) \
+ ptr = (cast)kmalloc((unsigned long) size, GFP_KERNEL); \
+ else \
+ ptr = (cast)vmalloc((unsigned long) size); \
+ if (!ptr) \
+ printk("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
+ else memset( ptr, 0, size ); \
+} while (0)
+
+
+#define CODA_FREE(ptr,size) \
+ do { if (size < PAGE_SIZE) kfree((ptr)); else vfree((ptr)); } while (0)
+
+/* inode to cnode access functions */
+
+static inline struct coda_inode_info *ITOC(struct inode *inode)
+{
+ return list_entry(inode, struct coda_inode_info, vfs_inode);
+}
+
+static __inline__ struct CodaFid *coda_i2f(struct inode *inode)
+{
+ return &(ITOC(inode)->c_fid);
+}
+
+static __inline__ char *coda_i2s(struct inode *inode)
+{
+ return coda_f2s(&(ITOC(inode)->c_fid));
+}
+
+/* this will not zap the inode away */
+static __inline__ void coda_flag_inode(struct inode *inode, int flag)
+{
+ ITOC(inode)->c_flags |= flag;
+}
+
+#endif