#include <linux/file.h>
#include <linux/slab.h>
#include <linux/sysctl.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
spin_lock(&dq_list_lock);
dirty = &dqopt->info[cnt].dqi_dirty_list;
while (!list_empty(dirty)) {
- dquot = list_entry(dirty->next, struct dquot, dq_dirty);
+ dquot = list_first_entry(dirty, struct dquot, dq_dirty);
/* Dirty and inactive can be only bad dquot... */
if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
clear_dquot_dirty(dquot);
return (dqstats.free_dquots / 100) * sysctl_vfs_cache_pressure;
}
+static struct shrinker dqcache_shrinker = {
+ .shrink = shrink_dqcache_memory,
+ .seeks = DEFAULT_SEEKS,
+};
+
/*
* Put reference to dquot
* NOTE: If you change this function please check whether dqput_blocks() works right...
/* This routine is guarded by dqonoff_mutex mutex */
static void add_dquot_ref(struct super_block *sb, int type)
{
- struct list_head *p;
+ struct inode *inode;
restart:
- file_list_lock();
- list_for_each(p, &sb->s_files) {
- struct file *filp = list_entry(p, struct file, f_u.fu_list);
- struct inode *inode = filp->f_path.dentry->d_inode;
- if (filp->f_mode & FMODE_WRITE && dqinit_needed(inode, type)) {
- struct dentry *dentry = dget(filp->f_path.dentry);
- file_list_unlock();
- sb->dq_op->initialize(inode, type);
- dput(dentry);
- /* As we may have blocked we had better restart... */
- goto restart;
- }
+ spin_lock(&inode_lock);
+ list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
+ if (!atomic_read(&inode->i_writecount))
+ continue;
+ if (!dqinit_needed(inode, type))
+ continue;
+ if (inode->i_state & (I_FREEING|I_WILL_FREE))
+ continue;
+
+ __iget(inode);
+ spin_unlock(&inode_lock);
+
+ sb->dq_op->initialize(inode, type);
+ iput(inode);
+ /* As we may have blocked we had better restart... */
+ goto restart;
}
- file_list_unlock();
+ spin_unlock(&inode_lock);
}
/* Return 0 if dqput() won't block (note that 1 doesn't necessarily mean blocking) */
/* Remove references to dquots from inode - add dquot to list for freeing if needed */
/* We can't race with anybody because we hold dqptr_sem for writing... */
-int remove_inode_dquot_ref(struct inode *inode, int type, struct list_head *tofree_head)
+static int remove_inode_dquot_ref(struct inode *inode, int type,
+ struct list_head *tofree_head)
{
struct dquot *dquot = inode->i_dquot[type];
/* If quota was reenabled in the meantime, we have
* nothing to do */
if (!sb_has_quota_enabled(sb, cnt)) {
- mutex_lock(&toputinode[cnt]->i_mutex);
+ mutex_lock_nested(&toputinode[cnt]->i_mutex, I_MUTEX_QUOTA);
toputinode[cnt]->i_flags &= ~(S_IMMUTABLE |
S_NOATIME | S_NOQUOTA);
truncate_inode_pages(&toputinode[cnt]->i_data, 0);
mutex_unlock(&dqopt->dqonoff_mutex);
}
if (sb->s_bdev)
- invalidate_bdev(sb->s_bdev, 0);
+ invalidate_bdev(sb->s_bdev);
return 0;
}
* we see all the changes from userspace... */
write_inode_now(inode, 1);
/* And now flush the block cache so that kernel sees the changes */
- invalidate_bdev(sb->s_bdev, 0);
+ invalidate_bdev(sb->s_bdev);
mutex_lock(&inode->i_mutex);
mutex_lock(&dqopt->dqonoff_mutex);
if (sb_has_quota_enabled(sb, type)) {
printk(KERN_NOTICE "VFS: Disk quotas %s\n", __DQUOT_VERSION__);
- register_sysctl_table(sys_table, 0);
+ register_sysctl_table(sys_table);
- dquot_cachep = kmem_cache_create("dquot",
+ dquot_cachep = kmem_cache_create("dquot",
sizeof(struct dquot), sizeof(unsigned long) * 4,
(SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD|SLAB_PANIC),
- NULL, NULL);
+ NULL);
order = 0;
dquot_hash = (struct hlist_head *)__get_free_pages(GFP_ATOMIC, order);
printk("Dquot-cache hash table entries: %ld (order %ld, %ld bytes)\n",
nr_hash, order, (PAGE_SIZE << order));
- set_shrinker(DEFAULT_SEEKS, shrink_dqcache_memory);
+ register_shrinker(&dqcache_shrinker);
return 0;
}