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);
}
static int
affs_file_release(struct inode *inode, struct file *filp)
{
if (atomic_read(&filp->f_count) != 0)
return 0;
pr_debug("AFFS: release(%d)\n", AFFS_INODE->i_opencnt);
AFFS_INODE->i_opencnt--;
if (!AFFS_INODE->i_opencnt)
affs_free_prealloc(inode);
return 0;
}
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_write_inode(struct inode *inode, struct writeback_control *wbc)
{
struct super_block *sb = inode->i_sb;
struct buffer_head *bh;
struct affs_tail *tail;
uid_t uid;
gid_t gid;
pr_debug("write_inode(%lu)\n", inode->i_ino);
if (!inode->i_nlink)
// possibly free block
return 0;
bh = affs_bread(sb, inode->i_ino);
if (!bh) {
affs_error(sb,"write_inode","Cannot read block %lu",inode->i_ino);
return -EIO;
}
tail = AFFS_TAIL(sb, bh);
if (tail->stype == cpu_to_be32(ST_ROOT)) {
affs_secs_to_datestamp(inode->i_mtime.tv_sec,
&AFFS_ROOT_TAIL(sb, bh)->root_change);
} else {
tail->protect = cpu_to_be32(AFFS_I(inode)->i_protect);
tail->size = cpu_to_be32(inode->i_size);
affs_secs_to_datestamp(inode->i_mtime.tv_sec, &tail->change);
if (!(inode->i_ino == AFFS_SB(sb)->s_root_block)) {
uid = i_uid_read(inode);
gid = i_gid_read(inode);
if (affs_test_opt(AFFS_SB(sb)->s_flags, SF_MUFS)) {
if (uid == 0 || uid == 0xFFFF)
uid = uid ^ ~0;
if (gid == 0 || gid == 0xFFFF)
gid = gid ^ ~0;
}
if (!affs_test_opt(AFFS_SB(sb)->s_flags, SF_SETUID))
tail->uid = cpu_to_be16(uid);
if (!affs_test_opt(AFFS_SB(sb)->s_flags, SF_SETGID))
tail->gid = cpu_to_be16(gid);
}
}
affs_fix_checksum(sb, bh);
mark_buffer_dirty_inode(bh, inode);
affs_brelse(bh);
affs_free_prealloc(inode);
return 0;
}
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 (inode->i_count == 1) {
unsigned long cache_page = (unsigned long) inode->u.affs_i.i_ec;
if (cache_page) {
pr_debug("AFFS: freeing ext cache\n");
inode->u.affs_i.i_ec = NULL;
free_page(cache_page);
}
}
}
void
affs_clear_inode(struct inode *inode)
{
unsigned long cache_page;
pr_debug("AFFS: clear_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
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;
}
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);
}
