From: Ingo Molnar Date: Fri, 13 Jan 2006 22:51:39 +0000 (-0800) Subject: IB: convert from semaphores to mutexes X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=95ed644fd12f53c6fc778f3f246974e5fe3a9468;p=linux-beck.git IB: convert from semaphores to mutexes semaphore to mutex conversion by Ingo and Arjan's script. Signed-off-by: Ingo Molnar [ Sanity-checked on real IB hardware ] Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index e169e798354b..b2f3cb91d9bc 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -38,8 +38,7 @@ #include #include #include - -#include +#include #include "core_priv.h" @@ -57,13 +56,13 @@ static LIST_HEAD(device_list); static LIST_HEAD(client_list); /* - * device_sem protects access to both device_list and client_list. + * device_mutex protects access to both device_list and client_list. * There's no real point to using multiple locks or something fancier * like an rwsem: we always access both lists, and we're always * modifying one list or the other list. In any case this is not a * hot path so there's no point in trying to optimize. */ -static DECLARE_MUTEX(device_sem); +static DEFINE_MUTEX(device_mutex); static int ib_device_check_mandatory(struct ib_device *device) { @@ -221,7 +220,7 @@ int ib_register_device(struct ib_device *device) { int ret; - down(&device_sem); + mutex_lock(&device_mutex); if (strchr(device->name, '%')) { ret = alloc_name(device->name); @@ -259,7 +258,7 @@ int ib_register_device(struct ib_device *device) } out: - up(&device_sem); + mutex_unlock(&device_mutex); return ret; } EXPORT_SYMBOL(ib_register_device); @@ -276,7 +275,7 @@ void ib_unregister_device(struct ib_device *device) struct ib_client_data *context, *tmp; unsigned long flags; - down(&device_sem); + mutex_lock(&device_mutex); list_for_each_entry_reverse(client, &client_list, list) if (client->remove) @@ -284,7 +283,7 @@ void ib_unregister_device(struct ib_device *device) list_del(&device->core_list); - up(&device_sem); + mutex_unlock(&device_mutex); spin_lock_irqsave(&device->client_data_lock, flags); list_for_each_entry_safe(context, tmp, &device->client_data_list, list) @@ -312,14 +311,14 @@ int ib_register_client(struct ib_client *client) { struct ib_device *device; - down(&device_sem); + mutex_lock(&device_mutex); list_add_tail(&client->list, &client_list); list_for_each_entry(device, &device_list, core_list) if (client->add && !add_client_context(device, client)) client->add(device); - up(&device_sem); + mutex_unlock(&device_mutex); return 0; } @@ -339,7 +338,7 @@ void ib_unregister_client(struct ib_client *client) struct ib_device *device; unsigned long flags; - down(&device_sem); + mutex_lock(&device_mutex); list_for_each_entry(device, &device_list, core_list) { if (client->remove) @@ -355,7 +354,7 @@ void ib_unregister_client(struct ib_client *client) } list_del(&client->list); - up(&device_sem); + mutex_unlock(&device_mutex); } EXPORT_SYMBOL(ib_unregister_client); diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index 6e15787d1de1..e95c4293a496 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -42,6 +42,7 @@ #include #include #include +#include #include @@ -113,7 +114,7 @@ static struct ib_client ucm_client = { .remove = ib_ucm_remove_one }; -static DECLARE_MUTEX(ctx_id_mutex); +static DEFINE_MUTEX(ctx_id_mutex); static DEFINE_IDR(ctx_id_table); static DECLARE_BITMAP(dev_map, IB_UCM_MAX_DEVICES); @@ -121,7 +122,7 @@ static struct ib_ucm_context *ib_ucm_ctx_get(struct ib_ucm_file *file, int id) { struct ib_ucm_context *ctx; - down(&ctx_id_mutex); + mutex_lock(&ctx_id_mutex); ctx = idr_find(&ctx_id_table, id); if (!ctx) ctx = ERR_PTR(-ENOENT); @@ -129,7 +130,7 @@ static struct ib_ucm_context *ib_ucm_ctx_get(struct ib_ucm_file *file, int id) ctx = ERR_PTR(-EINVAL); else atomic_inc(&ctx->ref); - up(&ctx_id_mutex); + mutex_unlock(&ctx_id_mutex); return ctx; } @@ -186,9 +187,9 @@ static struct ib_ucm_context *ib_ucm_ctx_alloc(struct ib_ucm_file *file) if (!result) goto error; - down(&ctx_id_mutex); + mutex_lock(&ctx_id_mutex); result = idr_get_new(&ctx_id_table, ctx, &ctx->id); - up(&ctx_id_mutex); + mutex_unlock(&ctx_id_mutex); } while (result == -EAGAIN); if (result) @@ -550,9 +551,9 @@ static ssize_t ib_ucm_create_id(struct ib_ucm_file *file, err2: ib_destroy_cm_id(ctx->cm_id); err1: - down(&ctx_id_mutex); + mutex_lock(&ctx_id_mutex); idr_remove(&ctx_id_table, ctx->id); - up(&ctx_id_mutex); + mutex_unlock(&ctx_id_mutex); kfree(ctx); return result; } @@ -572,7 +573,7 @@ static ssize_t ib_ucm_destroy_id(struct ib_ucm_file *file, if (copy_from_user(&cmd, inbuf, sizeof(cmd))) return -EFAULT; - down(&ctx_id_mutex); + mutex_lock(&ctx_id_mutex); ctx = idr_find(&ctx_id_table, cmd.id); if (!ctx) ctx = ERR_PTR(-ENOENT); @@ -580,7 +581,7 @@ static ssize_t ib_ucm_destroy_id(struct ib_ucm_file *file, ctx = ERR_PTR(-EINVAL); else idr_remove(&ctx_id_table, ctx->id); - up(&ctx_id_mutex); + mutex_unlock(&ctx_id_mutex); if (IS_ERR(ctx)) return PTR_ERR(ctx); @@ -1280,9 +1281,9 @@ static int ib_ucm_close(struct inode *inode, struct file *filp) struct ib_ucm_context, file_list); up(&file->mutex); - down(&ctx_id_mutex); + mutex_lock(&ctx_id_mutex); idr_remove(&ctx_id_table, ctx->id); - up(&ctx_id_mutex); + mutex_unlock(&ctx_id_mutex); ib_destroy_cm_id(ctx->cm_id); ib_ucm_cleanup_events(ctx); diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 7114e3fbab00..f7eecbc6af6c 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -41,6 +41,7 @@ #include #include +#include #include #include @@ -88,7 +89,7 @@ struct ib_uverbs_event_file { struct ib_uverbs_file { struct kref ref; - struct semaphore mutex; + struct mutex mutex; struct ib_uverbs_device *device; struct ib_ucontext *ucontext; struct ib_event_handler event_handler; @@ -131,7 +132,7 @@ struct ib_ucq_object { u32 async_events_reported; }; -extern struct semaphore ib_uverbs_idr_mutex; +extern struct mutex ib_uverbs_idr_mutex; extern struct idr ib_uverbs_pd_idr; extern struct idr ib_uverbs_mr_idr; extern struct idr ib_uverbs_mw_idr; diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 554c2057b7c1..407b6284d7d5 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -67,7 +67,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&file->mutex); + mutex_lock(&file->mutex); if (file->ucontext) { ret = -EINVAL; @@ -119,7 +119,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, fd_install(resp.async_fd, filp); - up(&file->mutex); + mutex_unlock(&file->mutex); return in_len; @@ -131,7 +131,7 @@ err_free: ibdev->dealloc_ucontext(ucontext); err: - up(&file->mutex); + mutex_unlock(&file->mutex); return ret; } @@ -290,7 +290,7 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file, pd->uobject = uobj; atomic_set(&pd->usecnt, 0); - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); retry: if (!idr_pre_get(&ib_uverbs_pd_idr, GFP_KERNEL)) { @@ -314,11 +314,11 @@ retry: goto err_idr; } - down(&file->mutex); + mutex_lock(&file->mutex); list_add_tail(&uobj->list, &file->ucontext->pd_list); - up(&file->mutex); + mutex_unlock(&file->mutex); - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return in_len; @@ -326,7 +326,7 @@ err_idr: idr_remove(&ib_uverbs_pd_idr, uobj->id); err_up: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); ib_dealloc_pd(pd); err: @@ -346,7 +346,7 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle); if (!pd || pd->uobject->context != file->ucontext) @@ -360,14 +360,14 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_pd_idr, cmd.pd_handle); - down(&file->mutex); + mutex_lock(&file->mutex); list_del(&uobj->list); - up(&file->mutex); + mutex_unlock(&file->mutex); kfree(uobj); out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -426,7 +426,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, obj->umem.virt_base = cmd.hca_va; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle); if (!pd || pd->uobject->context != file->ucontext) { @@ -476,11 +476,11 @@ retry: goto err_idr; } - down(&file->mutex); + mutex_lock(&file->mutex); list_add_tail(&obj->uobject.list, &file->ucontext->mr_list); - up(&file->mutex); + mutex_unlock(&file->mutex); - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return in_len; @@ -492,7 +492,7 @@ err_unreg: atomic_dec(&pd->usecnt); err_up: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); ib_umem_release(file->device->ib_dev, &obj->umem); @@ -513,7 +513,7 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); mr = idr_find(&ib_uverbs_mr_idr, cmd.mr_handle); if (!mr || mr->uobject->context != file->ucontext) @@ -527,15 +527,15 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_mr_idr, cmd.mr_handle); - down(&file->mutex); + mutex_lock(&file->mutex); list_del(&memobj->uobject.list); - up(&file->mutex); + mutex_unlock(&file->mutex); ib_umem_release(file->device->ib_dev, &memobj->umem); kfree(memobj); out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -628,7 +628,7 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file, cq->cq_context = ev_file; atomic_set(&cq->usecnt, 0); - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); retry: if (!idr_pre_get(&ib_uverbs_cq_idr, GFP_KERNEL)) { @@ -653,11 +653,11 @@ retry: goto err_idr; } - down(&file->mutex); + mutex_lock(&file->mutex); list_add_tail(&uobj->uobject.list, &file->ucontext->cq_list); - up(&file->mutex); + mutex_unlock(&file->mutex); - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return in_len; @@ -665,7 +665,7 @@ err_idr: idr_remove(&ib_uverbs_cq_idr, uobj->uobject.id); err_up: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); ib_destroy_cq(cq); err: @@ -701,7 +701,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, goto out_wc; } - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); cq = idr_find(&ib_uverbs_cq_idr, cmd.cq_handle); if (!cq || cq->uobject->context != file->ucontext) { ret = -EINVAL; @@ -731,7 +731,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); kfree(resp); out_wc: @@ -750,14 +750,14 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); cq = idr_find(&ib_uverbs_cq_idr, cmd.cq_handle); if (cq && cq->uobject->context == file->ucontext) { ib_req_notify_cq(cq, cmd.solicited_only ? IB_CQ_SOLICITED : IB_CQ_NEXT_COMP); ret = in_len; } - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret; } @@ -779,7 +779,7 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, memset(&resp, 0, sizeof resp); - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); cq = idr_find(&ib_uverbs_cq_idr, cmd.cq_handle); if (!cq || cq->uobject->context != file->ucontext) @@ -795,9 +795,9 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_cq_idr, cmd.cq_handle); - down(&file->mutex); + mutex_lock(&file->mutex); list_del(&uobj->uobject.list); - up(&file->mutex); + mutex_unlock(&file->mutex); ib_uverbs_release_ucq(file, ev_file, uobj); @@ -811,7 +811,7 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -845,7 +845,7 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file, if (!uobj) return -ENOMEM; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle); scq = idr_find(&ib_uverbs_cq_idr, cmd.send_cq_handle); @@ -930,11 +930,11 @@ retry: goto err_idr; } - down(&file->mutex); + mutex_lock(&file->mutex); list_add_tail(&uobj->uevent.uobject.list, &file->ucontext->qp_list); - up(&file->mutex); + mutex_unlock(&file->mutex); - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return in_len; @@ -950,7 +950,7 @@ err_destroy: atomic_dec(&attr.srq->usecnt); err_up: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); kfree(uobj); return ret; @@ -972,7 +972,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, if (!attr) return -ENOMEM; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle); if (!qp || qp->uobject->context != file->ucontext) { @@ -1033,7 +1033,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, ret = in_len; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); kfree(attr); return ret; @@ -1054,7 +1054,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, memset(&resp, 0, sizeof resp); - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle); if (!qp || qp->uobject->context != file->ucontext) @@ -1073,9 +1073,9 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_qp_idr, cmd.qp_handle); - down(&file->mutex); + mutex_lock(&file->mutex); list_del(&uobj->uevent.uobject.list); - up(&file->mutex); + mutex_unlock(&file->mutex); ib_uverbs_release_uevent(file, &uobj->uevent); @@ -1088,7 +1088,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -1119,7 +1119,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, if (!user_wr) return -ENOMEM; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle); if (!qp || qp->uobject->context != file->ucontext) @@ -1224,7 +1224,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); while (wr) { next = wr->next; @@ -1341,7 +1341,7 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file, if (IS_ERR(wr)) return PTR_ERR(wr); - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle); if (!qp || qp->uobject->context != file->ucontext) @@ -1362,7 +1362,7 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); while (wr) { next = wr->next; @@ -1392,7 +1392,7 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, if (IS_ERR(wr)) return PTR_ERR(wr); - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); srq = idr_find(&ib_uverbs_srq_idr, cmd.srq_handle); if (!srq || srq->uobject->context != file->ucontext) @@ -1413,7 +1413,7 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); while (wr) { next = wr->next; @@ -1446,7 +1446,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, if (!uobj) return -ENOMEM; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle); if (!pd || pd->uobject->context != file->ucontext) { @@ -1498,11 +1498,11 @@ retry: goto err_idr; } - down(&file->mutex); + mutex_lock(&file->mutex); list_add_tail(&uobj->list, &file->ucontext->ah_list); - up(&file->mutex); + mutex_unlock(&file->mutex); - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return in_len; @@ -1513,7 +1513,7 @@ err_destroy: ib_destroy_ah(ah); err_up: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); kfree(uobj); return ret; @@ -1530,7 +1530,7 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); ah = idr_find(&ib_uverbs_ah_idr, cmd.ah_handle); if (!ah || ah->uobject->context != file->ucontext) @@ -1544,14 +1544,14 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_ah_idr, cmd.ah_handle); - down(&file->mutex); + mutex_lock(&file->mutex); list_del(&uobj->list); - up(&file->mutex); + mutex_unlock(&file->mutex); kfree(uobj); out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -1569,7 +1569,7 @@ ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle); if (!qp || qp->uobject->context != file->ucontext) @@ -1602,7 +1602,7 @@ ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file, kfree(mcast); out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -1620,7 +1620,7 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); qp = idr_find(&ib_uverbs_qp_idr, cmd.qp_handle); if (!qp || qp->uobject->context != file->ucontext) @@ -1641,7 +1641,7 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file, } out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -1673,7 +1673,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file, if (!uobj) return -ENOMEM; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); pd = idr_find(&ib_uverbs_pd_idr, cmd.pd_handle); @@ -1730,11 +1730,11 @@ retry: goto err_idr; } - down(&file->mutex); + mutex_lock(&file->mutex); list_add_tail(&uobj->uobject.list, &file->ucontext->srq_list); - up(&file->mutex); + mutex_unlock(&file->mutex); - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return in_len; @@ -1746,7 +1746,7 @@ err_destroy: atomic_dec(&pd->usecnt); err_up: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); kfree(uobj); return ret; @@ -1764,7 +1764,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); srq = idr_find(&ib_uverbs_srq_idr, cmd.srq_handle); if (!srq || srq->uobject->context != file->ucontext) { @@ -1778,7 +1778,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, ret = ib_modify_srq(srq, &attr, cmd.attr_mask); out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } @@ -1796,7 +1796,7 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); memset(&resp, 0, sizeof resp); @@ -1812,9 +1812,9 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, idr_remove(&ib_uverbs_srq_idr, cmd.srq_handle); - down(&file->mutex); + mutex_lock(&file->mutex); list_del(&uobj->uobject.list); - up(&file->mutex); + mutex_unlock(&file->mutex); ib_uverbs_release_uevent(file, uobj); @@ -1827,7 +1827,7 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, ret = -EFAULT; out: - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return ret ? ret : in_len; } diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 81737bd6faea..96ea79b63df7 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -66,7 +66,7 @@ enum { static struct class *uverbs_class; -DECLARE_MUTEX(ib_uverbs_idr_mutex); +DEFINE_MUTEX(ib_uverbs_idr_mutex); DEFINE_IDR(ib_uverbs_pd_idr); DEFINE_IDR(ib_uverbs_mr_idr); DEFINE_IDR(ib_uverbs_mw_idr); @@ -180,7 +180,7 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, if (!context) return 0; - down(&ib_uverbs_idr_mutex); + mutex_lock(&ib_uverbs_idr_mutex); list_for_each_entry_safe(uobj, tmp, &context->ah_list, list) { struct ib_ah *ah = idr_find(&ib_uverbs_ah_idr, uobj->id); @@ -250,7 +250,7 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, kfree(uobj); } - up(&ib_uverbs_idr_mutex); + mutex_unlock(&ib_uverbs_idr_mutex); return context->device->dealloc_ucontext(context); } @@ -653,7 +653,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) file->ucontext = NULL; file->async_file = NULL; kref_init(&file->ref); - init_MUTEX(&file->mutex); + mutex_init(&file->mutex); filp->private_data = file; diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 9923a15a9996..e0a5412b7e68 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -45,11 +45,11 @@ #include #include #include +#include #include #include -#include #include #include @@ -123,8 +123,8 @@ struct ipoib_dev_priv { unsigned long flags; - struct semaphore mcast_mutex; - struct semaphore vlan_mutex; + struct mutex mcast_mutex; + struct mutex vlan_mutex; struct rb_root path_tree; struct list_head path_list; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index f7e848970794..86bcdd72a107 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -52,7 +52,7 @@ MODULE_PARM_DESC(data_debug_level, #define IPOIB_OP_RECV (1ul << 31) -static DECLARE_MUTEX(pkey_sem); +static DEFINE_MUTEX(pkey_mutex); struct ipoib_ah *ipoib_create_ah(struct net_device *dev, struct ib_pd *pd, struct ib_ah_attr *attr) @@ -445,10 +445,10 @@ int ipoib_ib_dev_down(struct net_device *dev) /* Shutdown the P_Key thread if still active */ if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) { - down(&pkey_sem); + mutex_lock(&pkey_mutex); set_bit(IPOIB_PKEY_STOP, &priv->flags); cancel_delayed_work(&priv->pkey_task); - up(&pkey_sem); + mutex_unlock(&pkey_mutex); flush_workqueue(ipoib_workqueue); } @@ -599,13 +599,13 @@ void ipoib_ib_dev_flush(void *_dev) if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) ipoib_ib_dev_up(dev); - down(&priv->vlan_mutex); + mutex_lock(&priv->vlan_mutex); /* Flush any child interfaces too */ list_for_each_entry(cpriv, &priv->child_intfs, list) ipoib_ib_dev_flush(&cpriv->dev); - up(&priv->vlan_mutex); + mutex_unlock(&priv->vlan_mutex); } void ipoib_ib_dev_cleanup(struct net_device *dev) @@ -651,12 +651,12 @@ void ipoib_pkey_poll(void *dev_ptr) if (test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) ipoib_open(dev); else { - down(&pkey_sem); + mutex_lock(&pkey_mutex); if (!test_bit(IPOIB_PKEY_STOP, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->pkey_task, HZ); - up(&pkey_sem); + mutex_unlock(&pkey_mutex); } } @@ -670,12 +670,12 @@ int ipoib_pkey_dev_delay_open(struct net_device *dev) /* P_Key value not assigned yet - start polling */ if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) { - down(&pkey_sem); + mutex_lock(&pkey_mutex); clear_bit(IPOIB_PKEY_STOP, &priv->flags); queue_delayed_work(ipoib_workqueue, &priv->pkey_task, HZ); - up(&pkey_sem); + mutex_unlock(&pkey_mutex); return 1; } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 780009c7eaa6..fd3f5c862a5d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -105,7 +105,7 @@ int ipoib_open(struct net_device *dev) struct ipoib_dev_priv *cpriv; /* Bring up any child interfaces too */ - down(&priv->vlan_mutex); + mutex_lock(&priv->vlan_mutex); list_for_each_entry(cpriv, &priv->child_intfs, list) { int flags; @@ -115,7 +115,7 @@ int ipoib_open(struct net_device *dev) dev_change_flags(cpriv->dev, flags | IFF_UP); } - up(&priv->vlan_mutex); + mutex_unlock(&priv->vlan_mutex); } netif_start_queue(dev); @@ -140,7 +140,7 @@ static int ipoib_stop(struct net_device *dev) struct ipoib_dev_priv *cpriv; /* Bring down any child interfaces too */ - down(&priv->vlan_mutex); + mutex_lock(&priv->vlan_mutex); list_for_each_entry(cpriv, &priv->child_intfs, list) { int flags; @@ -150,7 +150,7 @@ static int ipoib_stop(struct net_device *dev) dev_change_flags(cpriv->dev, flags & ~IFF_UP); } - up(&priv->vlan_mutex); + mutex_unlock(&priv->vlan_mutex); } return 0; @@ -892,8 +892,8 @@ static void ipoib_setup(struct net_device *dev) spin_lock_init(&priv->lock); spin_lock_init(&priv->tx_lock); - init_MUTEX(&priv->mcast_mutex); - init_MUTEX(&priv->vlan_mutex); + mutex_init(&priv->mcast_mutex); + mutex_init(&priv->vlan_mutex); INIT_LIST_HEAD(&priv->path_list); INIT_LIST_HEAD(&priv->child_intfs); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 7403bac1977b..98039da0caf0 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -55,7 +55,7 @@ MODULE_PARM_DESC(mcast_debug_level, "Enable multicast debug tracing if > 0"); #endif -static DECLARE_MUTEX(mcast_mutex); +static DEFINE_MUTEX(mcast_mutex); /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ struct ipoib_mcast { @@ -385,10 +385,10 @@ static void ipoib_mcast_join_complete(int status, if (!status && !ipoib_mcast_join_finish(mcast, mcmember)) { mcast->backoff = 1; - down(&mcast_mutex); + mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_work(ipoib_workqueue, &priv->mcast_task); - up(&mcast_mutex); + mutex_unlock(&mcast_mutex); complete(&mcast->done); return; } @@ -418,7 +418,7 @@ static void ipoib_mcast_join_complete(int status, mcast->query = NULL; - down(&mcast_mutex); + mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) { if (status == -ETIMEDOUT) queue_work(ipoib_workqueue, &priv->mcast_task); @@ -427,7 +427,7 @@ static void ipoib_mcast_join_complete(int status, mcast->backoff * HZ); } else complete(&mcast->done); - up(&mcast_mutex); + mutex_unlock(&mcast_mutex); return; } @@ -482,12 +482,12 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast, if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS) mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS; - down(&mcast_mutex); + mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, mcast->backoff * HZ); - up(&mcast_mutex); + mutex_unlock(&mcast_mutex); } else mcast->query_id = ret; } @@ -520,11 +520,11 @@ void ipoib_mcast_join_task(void *dev_ptr) priv->broadcast = ipoib_mcast_alloc(dev, 1); if (!priv->broadcast) { ipoib_warn(priv, "failed to allocate broadcast group\n"); - down(&mcast_mutex); + mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, HZ); - up(&mcast_mutex); + mutex_unlock(&mcast_mutex); return; } @@ -580,10 +580,10 @@ int ipoib_mcast_start_thread(struct net_device *dev) ipoib_dbg_mcast(priv, "starting multicast thread\n"); - down(&mcast_mutex); + mutex_lock(&mcast_mutex); if (!test_and_set_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_work(ipoib_workqueue, &priv->mcast_task); - up(&mcast_mutex); + mutex_unlock(&mcast_mutex); return 0; } @@ -595,10 +595,10 @@ int ipoib_mcast_stop_thread(struct net_device *dev, int flush) ipoib_dbg_mcast(priv, "stopping multicast thread\n"); - down(&mcast_mutex); + mutex_lock(&mcast_mutex); clear_bit(IPOIB_MCAST_RUN, &priv->flags); cancel_delayed_work(&priv->mcast_task); - up(&mcast_mutex); + mutex_unlock(&mcast_mutex); if (flush) flush_workqueue(ipoib_workqueue); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c index e829e10400e3..faaf10e5fc7b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c @@ -65,9 +65,9 @@ int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid) } /* attach QP to multicast group */ - down(&priv->mcast_mutex); + mutex_lock(&priv->mcast_mutex); ret = ib_attach_mcast(priv->qp, mgid, mlid); - up(&priv->mcast_mutex); + mutex_unlock(&priv->mcast_mutex); if (ret) ipoib_warn(priv, "failed to attach to multicast group, ret = %d\n", ret); @@ -81,9 +81,9 @@ int ipoib_mcast_detach(struct net_device *dev, u16 mlid, union ib_gid *mgid) struct ipoib_dev_priv *priv = netdev_priv(dev); int ret; - down(&priv->mcast_mutex); + mutex_lock(&priv->mcast_mutex); ret = ib_detach_mcast(priv->qp, mgid, mlid); - up(&priv->mcast_mutex); + mutex_unlock(&priv->mcast_mutex); if (ret) ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c index d280b341a37f..4ca175553f9f 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c @@ -63,7 +63,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) ppriv = netdev_priv(pdev); - down(&ppriv->vlan_mutex); + mutex_lock(&ppriv->vlan_mutex); /* * First ensure this isn't a duplicate. We check the parent device and @@ -124,7 +124,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) list_add_tail(&priv->list, &ppriv->child_intfs); - up(&ppriv->vlan_mutex); + mutex_unlock(&ppriv->vlan_mutex); return 0; @@ -139,7 +139,7 @@ device_init_failed: free_netdev(priv->dev); err: - up(&ppriv->vlan_mutex); + mutex_unlock(&ppriv->vlan_mutex); return result; } @@ -153,7 +153,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) ppriv = netdev_priv(pdev); - down(&ppriv->vlan_mutex); + mutex_lock(&ppriv->vlan_mutex); list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { if (priv->pkey == pkey) { unregister_netdev(priv->dev); @@ -167,7 +167,7 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) break; } } - up(&ppriv->vlan_mutex); + mutex_unlock(&ppriv->vlan_mutex); return ret; }