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Commit af56e0aa authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 

Pull ceph updates from Sage Weil:
 "There are some updates and cleanups to the CRUSH placement code, a bug
  fix with incremental maps, several cleanups and fixes from Josh Durgin
  in the RBD block device code, a series of cleanups and bug fixes from
  Alex Elder in the messenger code, and some miscellaneous bounds
  checking and gfp cleanups/fixes."

Fix up trivial conflicts in net/ceph/{messenger.c,osdmap.c} due to the
networking people preferring "unsigned int" over just "unsigned".

* git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (45 commits)
  libceph: fix pg_temp updates
  libceph: avoid unregistering osd request when not registered
  ceph: add auth buf in prepare_write_connect()
  ceph: rename prepare_connect_authorizer()
  ceph: return pointer from prepare_connect_authorizer()
  ceph: use info returned by get_authorizer
  ceph: have get_authorizer methods return pointers
  ceph: ensure auth ops are defined before use
  ceph: messenger: reduce args to create_authorizer
  ceph: define ceph_auth_handshake type
  ceph: messenger: check return from get_authorizer
  ceph: messenger: rework prepare_connect_authorizer()
  ceph: messenger: check prepare_write_connect() result
  ceph: don't set WRITE_PENDING too early
  ceph: drop msgr argument from prepare_write_connect()
  ceph: messenger: send banner in process_connect()
  ceph: messenger: reset connection kvec caller
  libceph: don't reset kvec in prepare_write_banner()
  ceph: ignore preferred_osd field
  ceph: fully initialize new layout
  ...
parents 65a50c95 6bd9adbd

Documentation/ABI/testing/sysfs-bus-rbd

+2 −2
Original line number Diff line number Diff line
@@ -65,11 +65,11 @@ snap_* 
Entries under /sys/bus/rbd/devices/<dev-id>/snap_<snap-name>

-------------------------------------------------------------



id

snap_id



	The rados internal snapshot id assigned for this snapshot



size

snap_size



	The size of the image when this snapshot was taken.

drivers/block/rbd.c

+29 −43
Original line number Diff line number Diff line
@@ -141,7 +141,7 @@ struct rbd_request { 
struct rbd_snap {

	struct	device		dev;

	const char		*name;

	size_t			size;

	u64			size;

	struct list_head	node;

	u64			id;

};
@@ -175,8 +175,7 @@ struct rbd_device { 
	/* protects updating the header */

	struct rw_semaphore     header_rwsem;

	char                    snap_name[RBD_MAX_SNAP_NAME_LEN];

	u32 cur_snap;	/* index+1 of current snapshot within snap context

			   0 - for the head */

	u64                     snap_id;	/* current snapshot id */

	int read_only;



	struct list_head	node;
@@ -241,7 +240,7 @@ static void rbd_put_dev(struct rbd_device *rbd_dev) 
	put_device(&rbd_dev->dev);

}



static int __rbd_update_snaps(struct rbd_device *rbd_dev);

static int __rbd_refresh_header(struct rbd_device *rbd_dev);



static int rbd_open(struct block_device *bdev, fmode_t mode)

{
@@ -450,7 +449,9 @@ static void rbd_client_release(struct kref *kref) 
	struct rbd_client *rbdc = container_of(kref, struct rbd_client, kref);



	dout("rbd_release_client %p\n", rbdc);

	spin_lock(&rbd_client_list_lock);

	list_del(&rbdc->node);

	spin_unlock(&rbd_client_list_lock);



	ceph_destroy_client(rbdc->client);

	kfree(rbdc->rbd_opts);
@@ -463,9 +464,7 @@ static void rbd_client_release(struct kref *kref) 
 */

static void rbd_put_client(struct rbd_device *rbd_dev)

{

	spin_lock(&rbd_client_list_lock);

	kref_put(&rbd_dev->rbd_client->kref, rbd_client_release);

	spin_unlock(&rbd_client_list_lock);

	rbd_dev->rbd_client = NULL;

}
@@ -487,16 +486,18 @@ static void rbd_coll_release(struct kref *kref) 
 */

static int rbd_header_from_disk(struct rbd_image_header *header,

				 struct rbd_image_header_ondisk *ondisk,

				 int allocated_snaps,

				 u32 allocated_snaps,

				 gfp_t gfp_flags)

{

	int i;

	u32 snap_count;

	u32 i, snap_count;



	if (memcmp(ondisk, RBD_HEADER_TEXT, sizeof(RBD_HEADER_TEXT)))

		return -ENXIO;



	snap_count = le32_to_cpu(ondisk->snap_count);

	if (snap_count > (UINT_MAX - sizeof(struct ceph_snap_context))

			 / sizeof (*ondisk))

		return -EINVAL;

	header->snapc = kmalloc(sizeof(struct ceph_snap_context) +

				snap_count * sizeof (*ondisk),

				gfp_flags);
@@ -506,11 +507,11 @@ static int rbd_header_from_disk(struct rbd_image_header *header, 
	header->snap_names_len = le64_to_cpu(ondisk->snap_names_len);

	if (snap_count) {

		header->snap_names = kmalloc(header->snap_names_len,

					     GFP_KERNEL);

					     gfp_flags);

		if (!header->snap_names)

			goto err_snapc;

		header->snap_sizes = kmalloc(snap_count * sizeof(u64),

					     GFP_KERNEL);

					     gfp_flags);

		if (!header->snap_sizes)

			goto err_names;

	} else {
@@ -552,21 +553,6 @@ static int rbd_header_from_disk(struct rbd_image_header *header, 
	return -ENOMEM;

}



static int snap_index(struct rbd_image_header *header, int snap_num)

{

	return header->total_snaps - snap_num;

}



static u64 cur_snap_id(struct rbd_device *rbd_dev)

{

	struct rbd_image_header *header = &rbd_dev->header;



	if (!rbd_dev->cur_snap)

		return 0;



	return header->snapc->snaps[snap_index(header, rbd_dev->cur_snap)];

}



static int snap_by_name(struct rbd_image_header *header, const char *snap_name,

			u64 *seq, u64 *size)

{
@@ -605,7 +591,7 @@ static int rbd_header_set_snap(struct rbd_device *dev, u64 *size) 
			snapc->seq = header->snap_seq;

		else

			snapc->seq = 0;

		dev->cur_snap = 0;

		dev->snap_id = CEPH_NOSNAP;

		dev->read_only = 0;

		if (size)

			*size = header->image_size;
@@ -613,8 +599,7 @@ static int rbd_header_set_snap(struct rbd_device *dev, u64 *size) 
		ret = snap_by_name(header, dev->snap_name, &snapc->seq, size);

		if (ret < 0)

			goto done;



		dev->cur_snap = header->total_snaps - ret;

		dev->snap_id = snapc->seq;

		dev->read_only = 1;

	}
@@ -935,7 +920,6 @@ static int rbd_do_request(struct request *rq, 
	layout->fl_stripe_unit = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);

	layout->fl_stripe_count = cpu_to_le32(1);

	layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);

	layout->fl_pg_preferred = cpu_to_le32(-1);

	layout->fl_pg_pool = cpu_to_le32(dev->poolid);

	ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno,

				req, ops);
@@ -1168,7 +1152,7 @@ static int rbd_req_read(struct request *rq, 
			 int coll_index)

{

	return rbd_do_op(rq, rbd_dev, NULL,

			 (snapid ? snapid : CEPH_NOSNAP),

			 snapid,

			 CEPH_OSD_OP_READ,

			 CEPH_OSD_FLAG_READ,

			 2,
@@ -1187,7 +1171,7 @@ static int rbd_req_sync_read(struct rbd_device *dev, 
			  u64 *ver)

{

	return rbd_req_sync_op(dev, NULL,

			       (snapid ? snapid : CEPH_NOSNAP),

			       snapid,

			       CEPH_OSD_OP_READ,

			       CEPH_OSD_FLAG_READ,

			       NULL,
@@ -1238,7 +1222,7 @@ static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data) 
	dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,

		notify_id, (int)opcode);

	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);

	rc = __rbd_update_snaps(dev);

	rc = __rbd_refresh_header(dev);

	mutex_unlock(&ctl_mutex);

	if (rc)

		pr_warning(RBD_DRV_NAME "%d got notification but failed to "
@@ -1521,7 +1505,7 @@ static void rbd_rq_fn(struct request_queue *q) 
					      coll, cur_seg);

			else

				rbd_req_read(rq, rbd_dev,

					     cur_snap_id(rbd_dev),

					     rbd_dev->snap_id,

					     ofs,

					     op_size, bio,

					     coll, cur_seg);
@@ -1592,7 +1576,7 @@ static int rbd_read_header(struct rbd_device *rbd_dev, 
{

	ssize_t rc;

	struct rbd_image_header_ondisk *dh;

	int snap_count = 0;

	u32 snap_count = 0;

	u64 ver;

	size_t len;
@@ -1656,7 +1640,7 @@ static int rbd_header_add_snap(struct rbd_device *dev, 
	struct ceph_mon_client *monc;



	/* we should create a snapshot only if we're pointing at the head */

	if (dev->cur_snap)

	if (dev->snap_id != CEPH_NOSNAP)

		return -EINVAL;



	monc = &dev->rbd_client->client->monc;
@@ -1683,7 +1667,9 @@ static int rbd_header_add_snap(struct rbd_device *dev, 
	if (ret < 0)

		return ret;



	down_write(&dev->header_rwsem);

	dev->header.snapc->seq = new_snapid;

	up_write(&dev->header_rwsem);



	return 0;

bad:
@@ -1703,7 +1689,7 @@ static void __rbd_remove_all_snaps(struct rbd_device *rbd_dev) 
/*

 * only read the first part of the ondisk header, without the snaps info

 */

static int __rbd_update_snaps(struct rbd_device *rbd_dev)

static int __rbd_refresh_header(struct rbd_device *rbd_dev)

{

	int ret;

	struct rbd_image_header h;
@@ -1890,7 +1876,7 @@ static ssize_t rbd_image_refresh(struct device *dev, 


	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);



	rc = __rbd_update_snaps(rbd_dev);

	rc = __rbd_refresh_header(rbd_dev);

	if (rc < 0)

		ret = rc;
@@ -1949,7 +1935,7 @@ static ssize_t rbd_snap_size_show(struct device *dev, 
{

	struct rbd_snap *snap = container_of(dev, struct rbd_snap, dev);



	return sprintf(buf, "%zd\n", snap->size);

	return sprintf(buf, "%llu\n", (unsigned long long)snap->size);

}



static ssize_t rbd_snap_id_show(struct device *dev,
@@ -2173,7 +2159,7 @@ static int rbd_init_watch_dev(struct rbd_device *rbd_dev) 
					 rbd_dev->header.obj_version);

		if (ret == -ERANGE) {

			mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);

			rc = __rbd_update_snaps(rbd_dev);

			rc = __rbd_refresh_header(rbd_dev);

			mutex_unlock(&ctl_mutex);

			if (rc < 0)

				return rc;
@@ -2558,7 +2544,7 @@ static ssize_t rbd_snap_add(struct device *dev, 
	if (ret < 0)

		goto err_unlock;



	ret = __rbd_update_snaps(rbd_dev);

	ret = __rbd_refresh_header(rbd_dev);

	if (ret < 0)

		goto err_unlock;

fs/ceph/file.c

+0 −1
Original line number Diff line number Diff line
@@ -54,7 +54,6 @@ prepare_open_request(struct super_block *sb, int flags, int create_mode) 
	req->r_fmode = ceph_flags_to_mode(flags);

	req->r_args.open.flags = cpu_to_le32(flags);

	req->r_args.open.mode = cpu_to_le32(create_mode);

	req->r_args.open.preferred = cpu_to_le32(-1);

out:

	return req;

}

fs/ceph/ioctl.c

+47 −55
Original line number Diff line number Diff line
@@ -26,8 +26,7 @@ static long ceph_ioctl_get_layout(struct file *file, void __user *arg) 
		l.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);

		l.object_size = ceph_file_layout_object_size(ci->i_layout);

		l.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);

		l.preferred_osd =

			(s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);

		l.preferred_osd = (s32)-1;

		if (copy_to_user(arg, &l, sizeof(l)))

			return -EFAULT;

	}
@@ -35,6 +34,32 @@ static long ceph_ioctl_get_layout(struct file *file, void __user *arg) 
	return err;

}



static long __validate_layout(struct ceph_mds_client *mdsc,

			      struct ceph_ioctl_layout *l)

{

	int i, err;



	/* validate striping parameters */

	if ((l->object_size & ~PAGE_MASK) ||

	    (l->stripe_unit & ~PAGE_MASK) ||

	    ((unsigned)l->object_size % (unsigned)l->stripe_unit))

		return -EINVAL;



	/* make sure it's a valid data pool */

	mutex_lock(&mdsc->mutex);

	err = -EINVAL;

	for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)

		if (mdsc->mdsmap->m_data_pg_pools[i] == l->data_pool) {

			err = 0;

			break;

		}

	mutex_unlock(&mdsc->mutex);

	if (err)

		return err;



	return 0;

}



static long ceph_ioctl_set_layout(struct file *file, void __user *arg)

{

	struct inode *inode = file->f_dentry->d_inode;
@@ -44,52 +69,40 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg) 
	struct ceph_ioctl_layout l;

	struct ceph_inode_info *ci = ceph_inode(file->f_dentry->d_inode);

	struct ceph_ioctl_layout nl;

	int err, i;

	int err;



	if (copy_from_user(&l, arg, sizeof(l)))

		return -EFAULT;



	/* validate changed params against current layout */

	err = ceph_do_getattr(file->f_dentry->d_inode, CEPH_STAT_CAP_LAYOUT);

	if (!err) {

		nl.stripe_unit = ceph_file_layout_su(ci->i_layout);

		nl.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);

		nl.object_size = ceph_file_layout_object_size(ci->i_layout);

		nl.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);

		nl.preferred_osd =

				(s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);

	} else

	if (err)

		return err;



	memset(&nl, 0, sizeof(nl));

	if (l.stripe_count)

		nl.stripe_count = l.stripe_count;

	else

		nl.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);

	if (l.stripe_unit)

		nl.stripe_unit = l.stripe_unit;

	else

		nl.stripe_unit = ceph_file_layout_su(ci->i_layout);

	if (l.object_size)

		nl.object_size = l.object_size;

	else

		nl.object_size = ceph_file_layout_object_size(ci->i_layout);

	if (l.data_pool)

		nl.data_pool = l.data_pool;

	if (l.preferred_osd)

		nl.preferred_osd = l.preferred_osd;

	else

		nl.data_pool = ceph_file_layout_pg_pool(ci->i_layout);



	if ((nl.object_size & ~PAGE_MASK) ||

	    (nl.stripe_unit & ~PAGE_MASK) ||

	    ((unsigned)nl.object_size % (unsigned)nl.stripe_unit))

		return -EINVAL;

	/* this is obsolete, and always -1 */

	nl.preferred_osd = le64_to_cpu(-1);



	/* make sure it's a valid data pool */

	if (l.data_pool > 0) {

		mutex_lock(&mdsc->mutex);

		err = -EINVAL;

		for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)

			if (mdsc->mdsmap->m_data_pg_pools[i] == l.data_pool) {

				err = 0;

				break;

			}

		mutex_unlock(&mdsc->mutex);

	err = __validate_layout(mdsc, &nl);

	if (err)

		return err;

	}



	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETLAYOUT,

				       USE_AUTH_MDS);
@@ -106,8 +119,6 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg) 
	req->r_args.setlayout.layout.fl_object_size =

		cpu_to_le32(l.object_size);

	req->r_args.setlayout.layout.fl_pg_pool = cpu_to_le32(l.data_pool);

	req->r_args.setlayout.layout.fl_pg_preferred =

		cpu_to_le32(l.preferred_osd);



	parent_inode = ceph_get_dentry_parent_inode(file->f_dentry);

	err = ceph_mdsc_do_request(mdsc, parent_inode, req);
@@ -127,33 +138,16 @@ static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg) 
	struct inode *inode = file->f_dentry->d_inode;

	struct ceph_mds_request *req;

	struct ceph_ioctl_layout l;

	int err, i;

	int err;

	struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;



	/* copy and validate */

	if (copy_from_user(&l, arg, sizeof(l)))

		return -EFAULT;



	if ((l.object_size & ~PAGE_MASK) ||

	    (l.stripe_unit & ~PAGE_MASK) ||

	    !l.stripe_unit ||

	    (l.object_size &&

	        (unsigned)l.object_size % (unsigned)l.stripe_unit))

		return -EINVAL;



	/* make sure it's a valid data pool */

	if (l.data_pool > 0) {

		mutex_lock(&mdsc->mutex);

		err = -EINVAL;

		for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)

			if (mdsc->mdsmap->m_data_pg_pools[i] == l.data_pool) {

				err = 0;

				break;

			}

		mutex_unlock(&mdsc->mutex);

	err = __validate_layout(mdsc, &l);

	if (err)

		return err;

	}



	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETDIRLAYOUT,

				       USE_AUTH_MDS);
@@ -171,8 +165,6 @@ static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg) 
			cpu_to_le32(l.object_size);

	req->r_args.setlayout.layout.fl_pg_pool =

			cpu_to_le32(l.data_pool);

	req->r_args.setlayout.layout.fl_pg_preferred =

			cpu_to_le32(l.preferred_osd);



	err = ceph_mdsc_do_request(mdsc, inode, req);

	ceph_mdsc_put_request(req);

fs/ceph/ioctl.h

+2 −0
Original line number Diff line number Diff line
@@ -34,6 +34,8 @@ 
struct ceph_ioctl_layout {

	__u64 stripe_unit, stripe_count, object_size;

	__u64 data_pool;



	/* obsolete.  new values ignored, always return -1 */

	__s64 preferred_osd;

};