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linux-next/fs/coda/coda_linux.c
Adrian Bunk de0ca06a99 coda: remove CODA_FS_OLD_API
While fixing CONFIG_ leakages to the userspace kernel headers I ran into
CODA_FS_OLD_API.

After five years, are there still people using the old API left?
Especially considering that you have to choose at compile time which API
to support in the kernel (and distributions tend to offer the new API for
some time).

Jan: "The old API can definitely go.  Around the time the new
      interface went in there were some non-Coda userspace file system
      implementations that took a while longer to convert to the new API,
      but by now they all switched to the new interface or in some cases
      to a FUSE-based solution."

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 10:53:33 -07:00

194 lines
5.0 KiB
C

/*
* 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];
sprintf(s, "(%08x.%08x.%08x.%08x)", f->opaque[0], f->opaque[1], f->opaque[2], f->opaque[3]);
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_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 = -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;
}
}