diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lov/lov_lock.c')
-rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_lock.c | 42 |
1 files changed, 4 insertions, 38 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c index ed2726e523e8..08ac3745f0da 100644 --- a/drivers/staging/lustre/lustre/lov/lov_lock.c +++ b/drivers/staging/lustre/lustre/lov/lov_lock.c @@ -144,7 +144,7 @@ static struct cl_lock *lov_sublock_alloc(const struct lu_env *env, LASSERT(idx < lck->lls_nr); - OBD_SLAB_ALLOC_PTR_GFP(link, lov_lock_link_kmem, __GFP_IO); + OBD_SLAB_ALLOC_PTR_GFP(link, lov_lock_link_kmem, GFP_NOFS); if (link != NULL) { struct lov_sublock_env *subenv; struct lov_lock_sub *lls; @@ -346,41 +346,7 @@ static int lov_lock_sub_init(const struct lu_env *env, } } LASSERT(nr == lck->lls_nr); - /* - * Then, create sub-locks. Once at least one sub-lock was created, - * top-lock can be reached by other threads. - */ - for (i = 0; i < lck->lls_nr; ++i) { - struct cl_lock *sublock; - struct lov_lock_link *link; - if (lck->lls_sub[i].sub_lock == NULL) { - sublock = lov_sublock_alloc(env, io, lck, i, &link); - if (IS_ERR(sublock)) { - result = PTR_ERR(sublock); - break; - } - cl_lock_get_trust(sublock); - cl_lock_mutex_get(env, sublock); - cl_lock_mutex_get(env, parent); - /* - * recheck under mutex that sub-lock wasn't created - * concurrently, and that top-lock is still alive. - */ - if (lck->lls_sub[i].sub_lock == NULL && - parent->cll_state < CLS_FREEING) { - lov_sublock_adopt(env, lck, sublock, i, link); - cl_lock_mutex_put(env, parent); - } else { - OBD_SLAB_FREE_PTR(link, lov_lock_link_kmem); - cl_lock_mutex_put(env, parent); - cl_lock_unhold(env, sublock, - "lov-parent", parent); - } - cl_lock_mutex_put(env, sublock); - cl_lock_put(env, sublock); - } - } /* * Some sub-locks can be missing at this point. This is not a problem, * because enqueue will create them anyway. Main duty of this function @@ -533,7 +499,7 @@ static int lov_lock_enqueue_one(const struct lu_env *env, struct lov_lock *lck, static int lov_sublock_fill(const struct lu_env *env, struct cl_lock *parent, struct cl_io *io, struct lov_lock *lck, int idx) { - struct lov_lock_link *link; + struct lov_lock_link *link = NULL; struct cl_lock *sublock; int result; @@ -1159,7 +1125,7 @@ int lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj, struct lov_lock *lck; int result; - OBD_SLAB_ALLOC_PTR_GFP(lck, lov_lock_kmem, __GFP_IO); + OBD_SLAB_ALLOC_PTR_GFP(lck, lov_lock_kmem, GFP_NOFS); if (lck != NULL) { cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_lock_ops); result = lov_lock_sub_init(env, lck, io); @@ -1194,7 +1160,7 @@ int lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj, struct lov_lock *lck; int result = -ENOMEM; - OBD_SLAB_ALLOC_PTR_GFP(lck, lov_lock_kmem, __GFP_IO); + OBD_SLAB_ALLOC_PTR_GFP(lck, lov_lock_kmem, GFP_NOFS); if (lck != NULL) { cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_empty_lock_ops); lck->lls_orig = lock->cll_descr; |