void sysv_truncate(struct inode * inode)
{
/* If this is called from sysv_put_inode, we needn't worry about
* races as we are just losing the last reference to the inode.
* If this is called from another place, let's hope it's a regular
* file.
* Truncating symbolic links is strange. We assume we don't truncate
* a directory we are just modifying. We ensure we don't truncate
* a regular file we are just writing to, by use of a lock.
*/
if (S_ISLNK(inode->i_mode))
printk("sysv_truncate: truncating symbolic link\n");
else if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)))
return;
if (inode->i_sb->sv_block_size_ratio_bits > 0) { /* block_size < BLOCK_SIZE ? */
coh_lock_inode(inode); /* do not write to the inode while we truncate */
while (coh_trunc_all(inode)) {
current->counter = 0;
schedule();
}
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inode->i_dirt = 1;
coh_unlock_inode(inode);
} else {
while (trunc_all(inode)) {
current->counter = 0;
schedule();
}
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inode->i_dirt = 1;
}
}
void sysv_truncate(struct inode * inode)
{
/* If this is called from sysv_put_inode, we needn't worry about
* races as we are just losing the last reference to the inode.
* If this is called from another place, let's hope it's a regular
* file.
* Truncating symbolic links is strange. We assume we don't truncate
* a directory we are just modifying. We ensure we don't truncate
* a regular file we are just writing to, by use of a lock.
*/
if (S_ISLNK(inode->i_mode))
printk("sysv_truncate: truncating symbolic link\n");
else if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)))
return;
while (trunc_all(inode)) {
current->counter = 0;
schedule();
}
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
}
