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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-08 11:38:59 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-08 11:38:59 -0800
commit9e95dae76b53e67b64bb8e8468d2285b1dc34720 (patch)
tree482551f8e837b34486d20b3c2273bf5f89b2000b /drivers
parenta8c6db00bff2bdb466d80b7ec7ff25d327071f9b (diff)
parent16515a6d54183349b858b9c05e483afc55fa7948 (diff)
Merge tag 'ceph-for-4.16-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov: "Things have been very quiet on the rbd side, as work continues on the big ticket items slated for the next merge window. On the CephFS side we have a large number of cap handling improvements, a fix for our long-standing abuse of ->journal_info in ceph_readpages() and yet another dentry pointer management patch" * tag 'ceph-for-4.16-rc1' of git://github.com/ceph/ceph-client: ceph: improving efficiency of syncfs libceph: check kstrndup() return value ceph: try to allocate enough memory for reserved caps ceph: fix race of queuing delayed caps ceph: delete unreachable code in ceph_check_caps() ceph: limit rate of cap import/export error messages ceph: fix incorrect snaprealm when adding caps ceph: fix un-balanced fsc->writeback_count update ceph: track read contexts in ceph_file_info ceph: avoid dereferencing invalid pointer during cached readdir ceph: use atomic_t for ceph_inode_info::i_shared_gen ceph: cleanup traceless reply handling for rename ceph: voluntarily drop Fx cap for readdir request ceph: properly drop caps for setattr request ceph: voluntarily drop Lx cap for link/rename requests ceph: voluntarily drop Ax cap for requests that create new inode rbd: whitelist RBD_FEATURE_OPERATIONS feature bit rbd: don't NULL out ->obj_request in rbd_img_obj_parent_read_full() rbd: use kmem_cache_zalloc() in rbd_img_request_create() rbd: obj_request->completion is unused
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/rbd.c22
1 files changed, 6 insertions, 16 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index cc93522a6d41..8e40da093766 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -124,11 +124,13 @@ static int atomic_dec_return_safe(atomic_t *v)
#define RBD_FEATURE_STRIPINGV2 (1ULL<<1)
#define RBD_FEATURE_EXCLUSIVE_LOCK (1ULL<<2)
#define RBD_FEATURE_DATA_POOL (1ULL<<7)
+#define RBD_FEATURE_OPERATIONS (1ULL<<8)
#define RBD_FEATURES_ALL (RBD_FEATURE_LAYERING | \
RBD_FEATURE_STRIPINGV2 | \
RBD_FEATURE_EXCLUSIVE_LOCK | \
- RBD_FEATURE_DATA_POOL)
+ RBD_FEATURE_DATA_POOL | \
+ RBD_FEATURE_OPERATIONS)
/* Features supported by this (client software) implementation. */
@@ -281,7 +283,6 @@ struct rbd_obj_request {
int result;
rbd_obj_callback_t callback;
- struct completion completion;
struct kref kref;
};
@@ -1734,10 +1735,7 @@ static void rbd_obj_request_complete(struct rbd_obj_request *obj_request)
{
dout("%s: obj %p cb %p\n", __func__, obj_request,
obj_request->callback);
- if (obj_request->callback)
- obj_request->callback(obj_request);
- else
- complete_all(&obj_request->completion);
+ obj_request->callback(obj_request);
}
static void rbd_obj_request_error(struct rbd_obj_request *obj_request, int err)
@@ -2013,7 +2011,6 @@ rbd_obj_request_create(enum obj_request_type type)
obj_request->which = BAD_WHICH;
obj_request->type = type;
INIT_LIST_HEAD(&obj_request->links);
- init_completion(&obj_request->completion);
kref_init(&obj_request->kref);
dout("%s %p\n", __func__, obj_request);
@@ -2129,15 +2126,13 @@ static struct rbd_img_request *rbd_img_request_create(
{
struct rbd_img_request *img_request;
- img_request = kmem_cache_alloc(rbd_img_request_cache, GFP_NOIO);
+ img_request = kmem_cache_zalloc(rbd_img_request_cache, GFP_NOIO);
if (!img_request)
return NULL;
- img_request->rq = NULL;
img_request->rbd_dev = rbd_dev;
img_request->offset = offset;
img_request->length = length;
- img_request->flags = 0;
if (op_type == OBJ_OP_DISCARD) {
img_request_discard_set(img_request);
img_request->snapc = snapc;
@@ -2149,11 +2144,8 @@ static struct rbd_img_request *rbd_img_request_create(
}
if (rbd_dev_parent_get(rbd_dev))
img_request_layered_set(img_request);
+
spin_lock_init(&img_request->completion_lock);
- img_request->next_completion = 0;
- img_request->callback = NULL;
- img_request->result = 0;
- img_request->obj_request_count = 0;
INIT_LIST_HEAD(&img_request->obj_requests);
kref_init(&img_request->kref);
@@ -2692,8 +2684,6 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
parent_request->copyup_pages = NULL;
parent_request->copyup_page_count = 0;
- parent_request->obj_request = NULL;
- rbd_obj_request_put(obj_request);
out_err:
if (pages)
ceph_release_page_vector(pages, page_count);

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