struct inode * coda_iget(struct super_block * sb, struct CodaFid * fid,
struct coda_vattr * attr)
{
struct inode *inode;
struct coda_inode_info *cii;
unsigned long hash = coda_f2i(fid);
inode = iget5_locked(sb, hash, coda_test_inode, coda_set_inode, fid);
if (!inode)
return ERR_PTR(-ENOMEM);
if (inode->i_state & I_NEW) {
cii = ITOC(inode);
/* we still need to set i_ino for things like stat(2) */
inode->i_ino = hash;
/* inode is locked and unique, no need to grab cii->c_lock */
cii->c_mapcount = 0;
unlock_new_inode(inode);
}
/* always replace the attributes, type might have changed */
coda_fill_inode(inode, attr);
return inode;
}
struct inode * coda_iget(struct super_block * sb, struct CodaFid * fid,
struct coda_vattr * attr)
{
struct inode *inode;
struct coda_inode_info *cii;
unsigned long hash = coda_f2i(fid);
inode = iget5_locked(sb, hash, coda_test_inode, coda_set_inode, fid);
if (!inode)
return ERR_PTR(-ENOMEM);
if (inode->i_state & I_NEW) {
cii = ITOC(inode);
inode->i_ino = hash;
cii->c_mapcount = 0;
unlock_new_inode(inode);
}
coda_fill_inode(inode, attr);
return inode;
}
struct inode * coda_iget(struct super_block * sb, ViceFid * fid,
struct coda_vattr * attr)
{
struct inode *inode;
struct coda_inode_info *cii;
ino_t ino = coda_f2i(fid);
inode = iget4(sb, ino, coda_inocmp, fid);
if ( !inode ) {
CDEBUG(D_CNODE, "coda_iget: no inode\n");
return ERR_PTR(-ENOMEM);
}
/* check if the inode is already initialized */
cii = ITOC(inode);
if (coda_isnullfid(&cii->c_fid))
/* new, empty inode found... initializing */
cii->c_fid = *fid;
/* we shouldnt see inode collisions anymore */
if (!coda_fideq(fid, &cii->c_fid)) BUG();
/* always replace the attributes, type might have changed */
coda_fill_inode(inode, attr);
return inode;
}
/* this is effectively coda_iget:
- get attributes (might be cached)
- get the inode for the fid using vfs iget
- link the two up if this is needed
- fill in the attributes
*/
int coda_cnode_make(struct inode **inode, ViceFid *fid, struct super_block *sb)
{
struct coda_inode_info *cnp;
struct coda_sb_info *sbi= coda_sbp(sb);
struct coda_vattr attr;
int error;
ino_t ino;
ENTRY;
/*
* We get inode numbers from Venus -- see venus source
*/
error = venus_getattr(sb, fid, &attr);
if ( error ) {
CDEBUG(D_CNODE,
"coda_cnode_make: coda_getvattr returned %d for %s.\n",
error, coda_f2s(fid));
*inode = NULL;
return error;
}
ino = attr.va_fileid;
*inode = iget(sb, ino);
if ( !*inode ) {
printk("coda_cnode_make: iget failed\n");
return -ENOMEM;
}
cnp = ITOC(*inode);
/* see if we've got it already */
if ( cnp->c_magic != 0 && coda_fideq(fid, &cnp->c_fid)) {
/* replace the attributes, type might have changed */
coda_fill_inode(*inode, &attr);
return 0;
}
/* not fresh: collision */
if ( cnp->c_magic != 0 ) {
printk("coda_cnode_make on initialized inode %ld, old %s new
%s!\n",
(*inode)->i_ino, coda_f2s(&cnp->c_fid), coda_f2s2(fid));
iput(*inode);
return -ENOENT;
}
