void
affs_evict_inode(struct inode *inode)
{
unsigned long cache_page;
pr_debug("AFFS: evict_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
truncate_inode_pages(&inode->i_data, 0);
if (!inode->i_nlink) {
inode->i_size = 0;
affs_truncate(inode);
}
invalidate_inode_buffers(inode);
end_writeback(inode);
affs_free_prealloc(inode);
cache_page = (unsigned long)AFFS_I(inode)->i_lc;
if (cache_page) {
pr_debug("AFFS: freeing ext cache\n");
AFFS_I(inode)->i_lc = NULL;
AFFS_I(inode)->i_ac = NULL;
free_page(cache_page);
}
affs_brelse(AFFS_I(inode)->i_ext_bh);
AFFS_I(inode)->i_ext_last = ~1;
AFFS_I(inode)->i_ext_bh = NULL;
if (!inode->i_nlink)
affs_free_block(inode->i_sb, inode->i_ino);
}
void
affs_delete_inode(struct inode *inode)
{
pr_debug("AFFS: delete_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
inode->i_size = 0;
if (S_ISREG(inode->i_mode))
affs_truncate(inode);
clear_inode(inode);
affs_free_block(inode->i_sb, inode->i_ino);
}
void
affs_drop_inode(struct inode *inode)
{
mutex_lock(&inode->i_mutex);
if (inode->i_size != AFFS_I(inode)->mmu_private)
affs_truncate(inode);
mutex_unlock(&inode->i_mutex);
generic_drop_inode(inode);
}
void
affs_delete_inode(struct inode *inode)
{
pr_debug("AFFS: delete_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
truncate_inode_pages(&inode->i_data, 0);
inode->i_size = 0;
affs_truncate(inode);
clear_inode(inode);
affs_free_block(inode->i_sb, inode->i_ino);
}
void
affs_put_inode(struct inode *inode)
{
pr_debug("AFFS: put_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
affs_free_prealloc(inode);
if (atomic_read(&inode->i_count) == 1) {
down(&inode->i_sem);
if (inode->i_size != AFFS_I(inode)->mmu_private)
affs_truncate(inode);
up(&inode->i_sem);
}
}
int
affs_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = d_inode(dentry);
int error;
pr_debug("notify_change(%lu,0x%x)\n", inode->i_ino, attr->ia_valid);
error = setattr_prepare(dentry, attr);
if (error)
goto out;
if (((attr->ia_valid & ATTR_UID) &&
affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_SETUID)) ||
((attr->ia_valid & ATTR_GID) &&
affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_SETGID)) ||
((attr->ia_valid & ATTR_MODE) &&
(AFFS_SB(inode->i_sb)->s_flags &
(AFFS_MOUNT_SF_SETMODE | AFFS_MOUNT_SF_IMMUTABLE)))) {
if (!affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_QUIET))
error = -EPERM;
goto out;
}
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
error = inode_newsize_ok(inode, attr->ia_size);
if (error)
return error;
truncate_setsize(inode, attr->ia_size);
affs_truncate(inode);
}
setattr_copy(inode, attr);
mark_inode_dirty(inode);
if (attr->ia_valid & ATTR_MODE)
affs_mode_to_prot(inode);
out:
return error;
}
