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ceph: unify dentry_operations instances 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2016-10-28 21:52:50 -04:00
parent 7126bc2e8d
commit 18fc8abdb7
4 changed files with 10 additions and 33 deletions
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30
fs/ceph/dir.c
View File

@ -50,13 +50,6 @@ int ceph_init_dentry(struct dentry *dentry)
goto out_unlock;
}
if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_NOSNAP)
d_set_d_op(dentry, &ceph_dentry_ops);
else if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_SNAPDIR)
d_set_d_op(dentry, &ceph_snapdir_dentry_ops);
else
d_set_d_op(dentry, &ceph_snap_dentry_ops);
di->dentry = dentry;
di->lease_session = NULL;
di->time = jiffies;
@ -1319,16 +1312,6 @@ static void ceph_d_release(struct dentry *dentry)
kmem_cache_free(ceph_dentry_cachep, di);
}
static int ceph_snapdir_d_revalidate(struct dentry *dentry,
unsigned int flags)
{
/*
* Eventually, we'll want to revalidate snapped metadata
* too... probably...
*/
return 1;
}
/*
* When the VFS prunes a dentry from the cache, we need to clear the
* complete flag on the parent directory.
@ -1347,6 +1330,9 @@ static void ceph_d_prune(struct dentry *dentry)
if (d_unhashed(dentry))
return;
if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_SNAPDIR)
return;
/*
* we hold d_lock, so d_parent is stable, and d_fsdata is never
* cleared until d_release
@ -1518,13 +1504,3 @@ const struct dentry_operations ceph_dentry_ops = {
.d_release = ceph_d_release,
.d_prune = ceph_d_prune,
};
const struct dentry_operations ceph_snapdir_dentry_ops = {
.d_revalidate = ceph_snapdir_d_revalidate,
.d_release = ceph_d_release,
};
const struct dentry_operations ceph_snap_dentry_ops = {
.d_release = ceph_d_release,
.d_prune = ceph_d_prune,
};

9
fs/ceph/inode.c
View File

@ -1023,16 +1023,17 @@ static void update_dentry_lease(struct dentry *dentry,
long unsigned half_ttl = from_time + (duration * HZ / 2) / 1000;
struct inode *dir;
/* only track leases on regular dentries */
if (dentry->d_op != &ceph_dentry_ops)
return;
spin_lock(&dentry->d_lock);
dout("update_dentry_lease %p duration %lu ms ttl %lu\n",
dentry, duration, ttl);
/* make lease_rdcache_gen match directory */
dir = d_inode(dentry->d_parent);
/* only track leases on regular dentries */
if (ceph_snap(dir) != CEPH_NOSNAP)
goto out_unlock;
di->lease_shared_gen = ceph_inode(dir)->i_shared_gen;
if (duration == 0)

1
fs/ceph/super.c
View File

@ -877,6 +877,7 @@ static int ceph_set_super(struct super_block *s, void *data)
fsc->sb = s;
s->s_op = &ceph_super_ops;
s->s_d_op = &ceph_dentry_ops;
s->s_export_op = &ceph_export_ops;
s->s_time_gran = 1000; /* 1000 ns == 1 us */

3
fs/ceph/super.h
View File

@ -934,8 +934,7 @@ extern const struct file_operations ceph_dir_fops;
extern const struct file_operations ceph_snapdir_fops;
extern const struct inode_operations ceph_dir_iops;
extern const struct inode_operations ceph_snapdir_iops;
extern const struct dentry_operations ceph_dentry_ops, ceph_snap_dentry_ops,
ceph_snapdir_dentry_ops;
extern const struct dentry_operations ceph_dentry_ops;
extern loff_t ceph_make_fpos(unsigned high, unsigned off, bool hash_order);
extern int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry);