static const struct inode_operations ceph_symlink_iops;
-static void ceph_invalidate_work(struct work_struct *work);
-static void ceph_writeback_work(struct work_struct *work);
-static void ceph_vmtruncate_work(struct work_struct *work);
+static void ceph_inode_work(struct work_struct *work);
/*
* find or create an inode, given the ceph ino number
INIT_LIST_HEAD(&ci->i_snap_realm_item);
INIT_LIST_HEAD(&ci->i_snap_flush_item);
- INIT_WORK(&ci->i_wb_work, ceph_writeback_work);
- INIT_WORK(&ci->i_pg_inv_work, ceph_invalidate_work);
-
- INIT_WORK(&ci->i_vmtruncate_work, ceph_vmtruncate_work);
+ INIT_WORK(&ci->i_work, ceph_inode_work);
+ ci->i_work_mask = 0;
ceph_fscache_inode_init(ci);
BUG_ON(d_inode(dn));
+ if (S_ISDIR(in->i_mode)) {
+ /* If inode is directory, d_splice_alias() below will remove
+ * 'realdn' from its origin parent. We need to ensure that
+ * origin parent's readdir cache will not reference 'realdn'
+ */
+ realdn = d_find_any_alias(in);
+ if (realdn) {
+ struct ceph_dentry_info *di = ceph_dentry(realdn);
+ spin_lock(&realdn->d_lock);
+
+ realdn->d_op->d_prune(realdn);
+
+ di->time = jiffies;
+ di->lease_shared_gen = 0;
+ di->offset = 0;
+
+ spin_unlock(&realdn->d_lock);
+ dput(realdn);
+ }
+ }
+
/* dn must be unhashed */
if (!d_unhashed(dn))
d_drop(dn);
if (!rinfo->head->is_target) {
dout("fill_trace null dentry\n");
if (d_really_is_positive(dn)) {
- ceph_dir_clear_ordered(dir);
dout("d_delete %p\n", dn);
+ ceph_dir_clear_ordered(dir);
d_delete(dn);
} else if (have_lease) {
if (d_unhashed(dn))
dout(" %p links to %p %llx.%llx, not %llx.%llx\n",
dn, d_inode(dn), ceph_vinop(d_inode(dn)),
ceph_vinop(in));
- ceph_dir_clear_ordered(dir);
d_invalidate(dn);
have_lease = false;
}
} else if (d_really_is_positive(dn) &&
(ceph_ino(d_inode(dn)) != tvino.ino ||
ceph_snap(d_inode(dn)) != tvino.snap)) {
+ struct ceph_dentry_info *di = ceph_dentry(dn);
dout(" dn %p points to wrong inode %p\n",
dn, d_inode(dn));
- __ceph_dir_clear_ordered(ci);
+
+ spin_lock(&dn->d_lock);
+ if (di->offset > 0 &&
+ di->lease_shared_gen ==
+ atomic_read(&ci->i_shared_gen)) {
+ __ceph_dir_clear_ordered(ci);
+ di->offset = 0;
+ }
+ spin_unlock(&dn->d_lock);
+
d_delete(dn);
dput(dn);
goto retry_lookup;
&req->r_caps_reservation);
if (ret < 0) {
pr_err("fill_inode badness on %p\n", in);
- if (d_really_is_positive(dn))
- __ceph_dir_clear_ordered(ci);
- else
+ if (d_really_is_negative(dn))
iput(in);
d_drop(dn);
err = ret;
*/
void ceph_queue_writeback(struct inode *inode)
{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ set_bit(CEPH_I_WORK_WRITEBACK, &ci->i_work_mask);
+
ihold(inode);
- if (queue_work(ceph_inode_to_client(inode)->wb_wq,
- &ceph_inode(inode)->i_wb_work)) {
+ if (queue_work(ceph_inode_to_client(inode)->inode_wq,
+ &ci->i_work)) {
dout("ceph_queue_writeback %p\n", inode);
} else {
- dout("ceph_queue_writeback %p failed\n", inode);
+ dout("ceph_queue_writeback %p already queued, mask=%lx\n",
+ inode, ci->i_work_mask);
iput(inode);
}
}
-static void ceph_writeback_work(struct work_struct *work)
-{
- struct ceph_inode_info *ci = container_of(work, struct ceph_inode_info,
- i_wb_work);
- struct inode *inode = &ci->vfs_inode;
-
- dout("writeback %p\n", inode);
- filemap_fdatawrite(&inode->i_data);
- iput(inode);
-}
-
/*
* queue an async invalidation
*/
void ceph_queue_invalidate(struct inode *inode)
{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ set_bit(CEPH_I_WORK_INVALIDATE_PAGES, &ci->i_work_mask);
+
ihold(inode);
- if (queue_work(ceph_inode_to_client(inode)->pg_inv_wq,
- &ceph_inode(inode)->i_pg_inv_work)) {
+ if (queue_work(ceph_inode_to_client(inode)->inode_wq,
+ &ceph_inode(inode)->i_work)) {
dout("ceph_queue_invalidate %p\n", inode);
} else {
- dout("ceph_queue_invalidate %p failed\n", inode);
+ dout("ceph_queue_invalidate %p already queued, mask=%lx\n",
+ inode, ci->i_work_mask);
iput(inode);
}
}
/*
- * Invalidate inode pages in a worker thread. (This can't be done
- * in the message handler context.)
+ * Queue an async vmtruncate. If we fail to queue work, we will handle
+ * the truncation the next time we call __ceph_do_pending_vmtruncate.
*/
-static void ceph_invalidate_work(struct work_struct *work)
+void ceph_queue_vmtruncate(struct inode *inode)
{
- struct ceph_inode_info *ci = container_of(work, struct ceph_inode_info,
- i_pg_inv_work);
- struct inode *inode = &ci->vfs_inode;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ set_bit(CEPH_I_WORK_VMTRUNCATE, &ci->i_work_mask);
+
+ ihold(inode);
+ if (queue_work(ceph_inode_to_client(inode)->inode_wq,
+ &ci->i_work)) {
+ dout("ceph_queue_vmtruncate %p\n", inode);
+ } else {
+ dout("ceph_queue_vmtruncate %p already queued, mask=%lx\n",
+ inode, ci->i_work_mask);
+ iput(inode);
+ }
+}
+
+static void ceph_do_invalidate_pages(struct inode *inode)
+{
+ struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
u32 orig_gen;
int check = 0;
out:
if (check)
ceph_check_caps(ci, 0, NULL);
- iput(inode);
-}
-
-
-/*
- * called by trunc_wq;
- *
- * We also truncate in a separate thread as well.
- */
-static void ceph_vmtruncate_work(struct work_struct *work)
-{
- struct ceph_inode_info *ci = container_of(work, struct ceph_inode_info,
- i_vmtruncate_work);
- struct inode *inode = &ci->vfs_inode;
-
- dout("vmtruncate_work %p\n", inode);
- __ceph_do_pending_vmtruncate(inode);
- iput(inode);
-}
-
-/*
- * Queue an async vmtruncate. If we fail to queue work, we will handle
- * the truncation the next time we call __ceph_do_pending_vmtruncate.
- */
-void ceph_queue_vmtruncate(struct inode *inode)
-{
- struct ceph_inode_info *ci = ceph_inode(inode);
-
- ihold(inode);
-
- if (queue_work(ceph_sb_to_client(inode->i_sb)->trunc_wq,
- &ci->i_vmtruncate_work)) {
- dout("ceph_queue_vmtruncate %p\n", inode);
- } else {
- dout("ceph_queue_vmtruncate %p failed, pending=%d\n",
- inode, ci->i_truncate_pending);
- iput(inode);
- }
}
/*
wake_up_all(&ci->i_cap_wq);
}
+static void ceph_inode_work(struct work_struct *work)
+{
+ struct ceph_inode_info *ci = container_of(work, struct ceph_inode_info,
+ i_work);
+ struct inode *inode = &ci->vfs_inode;
+
+ if (test_and_clear_bit(CEPH_I_WORK_WRITEBACK, &ci->i_work_mask)) {
+ dout("writeback %p\n", inode);
+ filemap_fdatawrite(&inode->i_data);
+ }
+ if (test_and_clear_bit(CEPH_I_WORK_INVALIDATE_PAGES, &ci->i_work_mask))
+ ceph_do_invalidate_pages(inode);
+
+ if (test_and_clear_bit(CEPH_I_WORK_VMTRUNCATE, &ci->i_work_mask))
+ __ceph_do_pending_vmtruncate(inode);
+
+ iput(inode);
+}
+
/*
* symlinks
*/
projects / mirror_ubuntu-bionic-kernel.git / blobdiff