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!

1 files changed, 197 insertions, 0 deletions

diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
new file mode 100644
index 000000000000..5597080cb811
--- /dev/null
+++ b/fs/coda/coda_linux.c
@@ -0,0 +1,197 @@
+/*
+ * Inode operations for Coda filesystem
+ * Original version: (C) 1996 P. Braam and M. Callahan
+ * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
+ * 
+ * Carnegie Mellon encourages users to contribute improvements to
+ * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+#include <linux/string.h>
+
+#include <linux/coda.h>
+#include <linux/coda_linux.h>
+#include <linux/coda_psdev.h>
+#include <linux/coda_fs_i.h>
+
+/* initialize the debugging variables */
+int coda_fake_statfs;
+
+/* print a fid */
+char * coda_f2s(struct CodaFid *f)
+{
+        static char s[60];
+#ifdef CONFIG_CODA_FS_OLD_API
+        sprintf(s, "(%08x.%08x.%08x)", f->opaque[0], f->opaque[1], f->opaque[2]);
+#else
+        sprintf(s, "(%08x.%08x.%08x.%08x)", f->opaque[0], f->opaque[1], f->opaque[2], f->opaque[3]);
+#endif
+        return s;
+}
+
+/* recognize special .CONTROL name */
+int coda_iscontrol(const char *name, size_t length)
+{
+        return ((CODA_CONTROLLEN == length) && 
+                (strncmp(name, CODA_CONTROL, CODA_CONTROLLEN) == 0));
+}
+
+/* recognize /coda inode */
+int coda_isroot(struct inode *i)
+{
+    return ( i->i_sb->s_root->d_inode == i );
+}
+
+unsigned short coda_flags_to_cflags(unsigned short flags)
+{
+        unsigned short coda_flags = 0;
+        
+        if ((flags & O_ACCMODE) == O_RDONLY)
+                coda_flags |= C_O_READ;
+
+        if ((flags & O_ACCMODE) == O_RDWR)
+                coda_flags |= C_O_READ | C_O_WRITE;
+
+        if ((flags & O_ACCMODE) == O_WRONLY)
+                coda_flags |= C_O_WRITE;
+
+        if (flags & O_TRUNC)
+                coda_flags |= C_O_TRUNC;
+
+        if (flags & O_CREAT)
+                coda_flags |= C_O_CREAT;
+
+        if (flags & O_EXCL)
+                coda_flags |= C_O_EXCL;
+
+        return coda_flags;
+}
+
+
+/* utility functions below */
+void coda_vattr_to_iattr(struct inode *inode, struct coda_vattr *attr)
+{
+        int inode_type;
+        /* inode's i_flags, i_ino are set by iget 
+           XXX: is this all we need ??
+           */
+        switch (attr->va_type) {
+        case C_VNON:
+                inode_type  = 0;
+                break;
+        case C_VREG:
+                inode_type = S_IFREG;
+                break;
+        case C_VDIR:
+                inode_type = S_IFDIR;
+                break;
+        case C_VLNK:
+                inode_type = S_IFLNK;
+                break;
+        default:
+                inode_type = 0;
+        }
+        inode->i_mode |= inode_type;
+
+        if (attr->va_mode != (u_short) -1)
+                inode->i_mode = attr->va_mode | inode_type;
+        if (attr->va_uid != -1) 
+                inode->i_uid = (uid_t) attr->va_uid;
+        if (attr->va_gid != -1)
+                inode->i_gid = (gid_t) attr->va_gid;
+        if (attr->va_nlink != -1)
+                inode->i_nlink = attr->va_nlink;
+        if (attr->va_size != -1)
+                inode->i_size = attr->va_size;
+        if (attr->va_blocksize != -1)
+                inode->i_blksize = attr->va_blocksize;
+        if (attr->va_size != -1)
+                inode->i_blocks = (attr->va_size + 511) >> 9;
+        if (attr->va_atime.tv_sec != -1) 
+                inode->i_atime = attr->va_atime;
+        if (attr->va_mtime.tv_sec != -1)
+                inode->i_mtime = attr->va_mtime;
+        if (attr->va_ctime.tv_sec != -1)
+                inode->i_ctime = attr->va_ctime;
+}
+
+
+/* 
+ * BSD sets attributes that need not be modified to -1. 
+ * Linux uses the valid field to indicate what should be
+ * looked at.  The BSD type field needs to be deduced from linux 
+ * mode.
+ * So we have to do some translations here.
+ */
+
+void coda_iattr_to_vattr(struct iattr *iattr, struct coda_vattr *vattr)
+{
+        unsigned int valid;
+
+        /* clean out */        
+        vattr->va_mode = (umode_t) -1;
+        vattr->va_uid = (vuid_t) -1; 
+        vattr->va_gid = (vgid_t) -1;
+        vattr->va_size = (off_t) -1;
+        vattr->va_atime.tv_sec = (time_t) -1;
+        vattr->va_atime.tv_nsec =  (time_t) -1;
+        vattr->va_mtime.tv_sec = (time_t) -1;
+        vattr->va_mtime.tv_nsec = (time_t) -1;
+        vattr->va_ctime.tv_sec = (time_t) -1;
+        vattr->va_ctime.tv_nsec = (time_t) -1;
+        vattr->va_type = C_VNON;
+        vattr->va_fileid = -1;
+        vattr->va_gen = -1;
+        vattr->va_bytes = -1;
+        vattr->va_nlink = -1;
+        vattr->va_blocksize = -1;
+        vattr->va_rdev = -1;
+        vattr->va_flags = 0;
+
+        /* determine the type */
+#if 0
+        mode = iattr->ia_mode;
+                if ( S_ISDIR(mode) ) {
+                vattr->va_type = C_VDIR; 
+        } else if ( S_ISREG(mode) ) {
+                vattr->va_type = C_VREG;
+        } else if ( S_ISLNK(mode) ) {
+                vattr->va_type = C_VLNK;
+        } else {
+                /* don't do others */
+                vattr->va_type = C_VNON;
+        }
+#endif 
+
+        /* set those vattrs that need change */
+        valid = iattr->ia_valid;
+        if ( valid & ATTR_MODE ) {
+                vattr->va_mode = iattr->ia_mode;
+        }
+        if ( valid & ATTR_UID ) {
+                vattr->va_uid = (vuid_t) iattr->ia_uid;
+        }
+        if ( valid & ATTR_GID ) {
+                vattr->va_gid = (vgid_t) iattr->ia_gid;
+        }
+        if ( valid & ATTR_SIZE ) {
+                vattr->va_size = iattr->ia_size;
+        }
+        if ( valid & ATTR_ATIME ) {
+                vattr->va_atime = iattr->ia_atime;
+        }
+        if ( valid & ATTR_MTIME ) {
+                vattr->va_mtime = iattr->ia_mtime;
+        }
+        if ( valid & ATTR_CTIME ) {
+                vattr->va_ctime = iattr->ia_ctime;
+        }
+}
+