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Merge tag 'ceph-for-4.8-rc1' of git://github.com/ceph/ceph-client
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Pull Ceph updates from Ilya Dryomov:
 "The highlights are:

   - RADOS namespace support in libceph and CephFS (Zheng Yan and
     myself).  The stopgaps added in 4.5 to deny access to inodes in
     namespaces are removed and CEPH_FEATURE_FS_FILE_LAYOUT_V2 feature
     bit is now fully supported

   - A large rework of the MDS cap flushing code (Zheng Yan)

   - Handle some of ->d_revalidate() in RCU mode (Jeff Layton).  We were
     overly pessimistic before, bailing at the first sight of LOOKUP_RCU

  On top of that we've got a few CephFS bug fixes, a couple of cleanups
  and Arnd's workaround for a weird genksyms issue"

* tag 'ceph-for-4.8-rc1' of git://github.com/ceph/ceph-client: (34 commits)
  ceph: fix symbol versioning for ceph_monc_do_statfs
  ceph: Correctly return NXIO errors from ceph_llseek
  ceph: Mark the file cache as unreclaimable
  ceph: optimize cap flush waiting
  ceph: cleanup ceph_flush_snaps()
  ceph: kick cap flushes before sending other cap message
  ceph: introduce an inode flag to indicates if snapflush is needed
  ceph: avoid sending duplicated cap flush message
  ceph: unify cap flush and snapcap flush
  ceph: use list instead of rbtree to track cap flushes
  ceph: update types of some local varibles
  ceph: include 'follows' of pending snapflush in cap reconnect message
  ceph: update cap reconnect message to version 3
  ceph: mount non-default filesystem by name
  libceph: fsmap.user subscription support
  ceph: handle LOOKUP_RCU in ceph_d_revalidate
  ceph: allow dentry_lease_is_valid to work under RCU walk
  ceph: clear d_fsinfo pointer under d_lock
  ceph: remove ceph_mdsc_lease_release
  ceph: don't use ->d_time
  ...
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@torvalds
torvalds committed Aug 2, 2016
2 parents c7fac29 + a0f2b65 commit 72b5ac5
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Showing 31 changed files with 1,412 additions and 823 deletions.
15 changes: 8 additions & 7 deletions drivers/block/rbd.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1937,7 +1937,7 @@ static struct ceph_osd_request *rbd_osd_req_create(
osd_req->r_callback = rbd_osd_req_callback;
osd_req->r_priv = obj_request;

osd_req->r_base_oloc.pool = ceph_file_layout_pg_pool(rbd_dev->layout);
osd_req->r_base_oloc.pool = rbd_dev->layout.pool_id;
if (ceph_oid_aprintf(&osd_req->r_base_oid, GFP_NOIO, "%s",
obj_request->object_name))
goto fail;
Expand Down Expand Up @@ -1991,7 +1991,7 @@ rbd_osd_req_create_copyup(struct rbd_obj_request *obj_request)
osd_req->r_callback = rbd_osd_req_callback;
osd_req->r_priv = obj_request;

osd_req->r_base_oloc.pool = ceph_file_layout_pg_pool(rbd_dev->layout);
osd_req->r_base_oloc.pool = rbd_dev->layout.pool_id;
if (ceph_oid_aprintf(&osd_req->r_base_oid, GFP_NOIO, "%s",
obj_request->object_name))
goto fail;
Expand Down Expand Up @@ -3995,10 +3995,11 @@ static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,

/* Initialize the layout used for all rbd requests */

rbd_dev->layout.fl_stripe_unit = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);
rbd_dev->layout.fl_stripe_count = cpu_to_le32(1);
rbd_dev->layout.fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);
rbd_dev->layout.fl_pg_pool = cpu_to_le32((u32) spec->pool_id);
rbd_dev->layout.stripe_unit = 1 << RBD_MAX_OBJ_ORDER;
rbd_dev->layout.stripe_count = 1;
rbd_dev->layout.object_size = 1 << RBD_MAX_OBJ_ORDER;
rbd_dev->layout.pool_id = spec->pool_id;
RCU_INIT_POINTER(rbd_dev->layout.pool_ns, NULL);

/*
* If this is a mapping rbd_dev (as opposed to a parent one),
Expand Down Expand Up @@ -5187,7 +5188,7 @@ static int rbd_dev_header_name(struct rbd_device *rbd_dev)

rbd_assert(rbd_image_format_valid(rbd_dev->image_format));

rbd_dev->header_oloc.pool = ceph_file_layout_pg_pool(rbd_dev->layout);
rbd_dev->header_oloc.pool = rbd_dev->layout.pool_id;
if (rbd_dev->image_format == 1)
ret = ceph_oid_aprintf(&rbd_dev->header_oid, GFP_KERNEL, "%s%s",
spec->image_name, RBD_SUFFIX);
Expand Down
77 changes: 57 additions & 20 deletions fs/ceph/addr.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1730,14 +1730,16 @@ enum {
POOL_WRITE = 2,
};

static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
s64 pool, struct ceph_string *pool_ns)
{
struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->vfs_inode);
struct ceph_mds_client *mdsc = fsc->mdsc;
struct ceph_osd_request *rd_req = NULL, *wr_req = NULL;
struct rb_node **p, *parent;
struct ceph_pool_perm *perm;
struct page **pages;
size_t pool_ns_len;
int err = 0, err2 = 0, have = 0;

down_read(&mdsc->pool_perm_rwsem);
Expand All @@ -1749,17 +1751,31 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
else if (pool > perm->pool)
p = &(*p)->rb_right;
else {
have = perm->perm;
break;
int ret = ceph_compare_string(pool_ns,
perm->pool_ns,
perm->pool_ns_len);
if (ret < 0)
p = &(*p)->rb_left;
else if (ret > 0)
p = &(*p)->rb_right;
else {
have = perm->perm;
break;
}
}
}
up_read(&mdsc->pool_perm_rwsem);
if (*p)
goto out;

dout("__ceph_pool_perm_get pool %u no perm cached\n", pool);
if (pool_ns)
dout("__ceph_pool_perm_get pool %lld ns %.*s no perm cached\n",
pool, (int)pool_ns->len, pool_ns->str);
else
dout("__ceph_pool_perm_get pool %lld no perm cached\n", pool);

down_write(&mdsc->pool_perm_rwsem);
p = &mdsc->pool_perm_tree.rb_node;
parent = NULL;
while (*p) {
parent = *p;
Expand All @@ -1769,8 +1785,17 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
else if (pool > perm->pool)
p = &(*p)->rb_right;
else {
have = perm->perm;
break;
int ret = ceph_compare_string(pool_ns,
perm->pool_ns,
perm->pool_ns_len);
if (ret < 0)
p = &(*p)->rb_left;
else if (ret > 0)
p = &(*p)->rb_right;
else {
have = perm->perm;
break;
}
}
}
if (*p) {
Expand All @@ -1788,6 +1813,8 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
rd_req->r_flags = CEPH_OSD_FLAG_READ;
osd_req_op_init(rd_req, 0, CEPH_OSD_OP_STAT, 0);
rd_req->r_base_oloc.pool = pool;
if (pool_ns)
rd_req->r_base_oloc.pool_ns = ceph_get_string(pool_ns);
ceph_oid_printf(&rd_req->r_base_oid, "%llx.00000000", ci->i_vino.ino);

err = ceph_osdc_alloc_messages(rd_req, GFP_NOFS);
Expand Down Expand Up @@ -1841,14 +1868,20 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
goto out_unlock;
}

perm = kmalloc(sizeof(*perm), GFP_NOFS);
pool_ns_len = pool_ns ? pool_ns->len : 0;
perm = kmalloc(sizeof(*perm) + pool_ns_len + 1, GFP_NOFS);
if (!perm) {
err = -ENOMEM;
goto out_unlock;
}

perm->pool = pool;
perm->perm = have;
perm->pool_ns_len = pool_ns_len;
if (pool_ns_len > 0)
memcpy(perm->pool_ns, pool_ns->str, pool_ns_len);
perm->pool_ns[pool_ns_len] = 0;

rb_link_node(&perm->node, parent, p);
rb_insert_color(&perm->node, &mdsc->pool_perm_tree);
err = 0;
Expand All @@ -1860,43 +1893,46 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
out:
if (!err)
err = have;
dout("__ceph_pool_perm_get pool %u result = %d\n", pool, err);
if (pool_ns)
dout("__ceph_pool_perm_get pool %lld ns %.*s result = %d\n",
pool, (int)pool_ns->len, pool_ns->str, err);
else
dout("__ceph_pool_perm_get pool %lld result = %d\n", pool, err);
return err;
}

int ceph_pool_perm_check(struct ceph_inode_info *ci, int need)
{
u32 pool;
s64 pool;
struct ceph_string *pool_ns;
int ret, flags;

/* does not support pool namespace yet */
if (ci->i_pool_ns_len)
return -EIO;

if (ceph_test_mount_opt(ceph_inode_to_client(&ci->vfs_inode),
NOPOOLPERM))
return 0;

spin_lock(&ci->i_ceph_lock);
flags = ci->i_ceph_flags;
pool = ceph_file_layout_pg_pool(ci->i_layout);
pool = ci->i_layout.pool_id;
spin_unlock(&ci->i_ceph_lock);
check:
if (flags & CEPH_I_POOL_PERM) {
if ((need & CEPH_CAP_FILE_RD) && !(flags & CEPH_I_POOL_RD)) {
dout("ceph_pool_perm_check pool %u no read perm\n",
dout("ceph_pool_perm_check pool %lld no read perm\n",
pool);
return -EPERM;
}
if ((need & CEPH_CAP_FILE_WR) && !(flags & CEPH_I_POOL_WR)) {
dout("ceph_pool_perm_check pool %u no write perm\n",
dout("ceph_pool_perm_check pool %lld no write perm\n",
pool);
return -EPERM;
}
return 0;
}

ret = __ceph_pool_perm_get(ci, pool);
pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);
ret = __ceph_pool_perm_get(ci, pool, pool_ns);
ceph_put_string(pool_ns);
if (ret < 0)
return ret;

Expand All @@ -1907,10 +1943,11 @@ int ceph_pool_perm_check(struct ceph_inode_info *ci, int need)
flags |= CEPH_I_POOL_WR;

spin_lock(&ci->i_ceph_lock);
if (pool == ceph_file_layout_pg_pool(ci->i_layout)) {
ci->i_ceph_flags = flags;
if (pool == ci->i_layout.pool_id &&
pool_ns == rcu_dereference_raw(ci->i_layout.pool_ns)) {
ci->i_ceph_flags |= flags;
} else {
pool = ceph_file_layout_pg_pool(ci->i_layout);
pool = ci->i_layout.pool_id;
flags = ci->i_ceph_flags;
}
spin_unlock(&ci->i_ceph_lock);
Expand Down
2 changes: 1 addition & 1 deletion fs/ceph/cache.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,7 @@ int ceph_fscache_register_fs(struct ceph_fs_client* fsc)
&ceph_fscache_fsid_object_def,
fsc, true);
if (!fsc->fscache)
pr_err("Unable to resgister fsid: %p fscache cookie", fsc);
pr_err("Unable to register fsid: %p fscache cookie\n", fsc);

return 0;
}
Expand Down
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