lkml.org 
[lkml]   [2019]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/5] RDMA/uverbs: add owner parameter to ib_umem_get
Date
ib_umem_get is a core function used by drivers that support RDMA.
The 'owner' parameter signifies the process that owns the memory.
Until now, it was assumed that the owning process was the current
process. This adds the flexibility to specify a process other than
the current process. All drivers that call this function are also
updated, but the default behaviour is to keep backwards
compatibility by assuming the current process is the owner when
the 'owner' parameter is NULL.

Signed-off-by: Joel Nider <joeln@il.ibm.com>
---
drivers/infiniband/core/umem.c | 26 ++++++++++++++++++++------
drivers/infiniband/hw/bnxt_re/ib_verbs.c | 10 +++++-----
drivers/infiniband/hw/cxgb3/iwch_provider.c | 3 ++-
drivers/infiniband/hw/cxgb4/mem.c | 3 ++-
drivers/infiniband/hw/hns/hns_roce_cq.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_db.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_mr.c | 4 ++--
drivers/infiniband/hw/hns/hns_roce_qp.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_srq.c | 2 +-
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 2 +-
drivers/infiniband/hw/mlx4/cq.c | 2 +-
drivers/infiniband/hw/mlx4/doorbell.c | 2 +-
drivers/infiniband/hw/mlx4/mr.c | 2 +-
drivers/infiniband/hw/mlx4/qp.c | 2 +-
drivers/infiniband/hw/mlx4/srq.c | 2 +-
drivers/infiniband/hw/mlx5/cq.c | 4 ++--
drivers/infiniband/hw/mlx5/devx.c | 2 +-
drivers/infiniband/hw/mlx5/doorbell.c | 2 +-
drivers/infiniband/hw/mlx5/mr.c | 15 ++++++++-------
drivers/infiniband/hw/mlx5/odp.c | 5 +++--
drivers/infiniband/hw/mlx5/qp.c | 4 ++--
drivers/infiniband/hw/mlx5/srq.c | 2 +-
drivers/infiniband/hw/mthca/mthca_provider.c | 2 +-
drivers/infiniband/hw/nes/nes_verbs.c | 3 ++-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 3 ++-
drivers/infiniband/hw/qedr/verbs.c | 8 +++++---
drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c | 2 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c | 2 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 5 +++--
drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c | 2 +-
drivers/infiniband/sw/rdmavt/mr.c | 2 +-
drivers/infiniband/sw/rxe/rxe_mr.c | 3 ++-
include/rdma/ib_umem.h | 3 ++-
33 files changed, 80 insertions(+), 55 deletions(-)

diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index c6144df..9646cee 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -71,15 +71,21 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
*
* If access flags indicate ODP memory, avoid pinning. Instead, stores
* the mm for future page fault handling in conjunction with MMU notifiers.
+ * If the process doing the pinning is the same as the process that owns
+ * the memory being pinned, 'owner' should be NULL. Otherwise, 'owner' should
+ * be the process ID of the owning process. The process ID must be in the
+ * same PID namespace as the calling userspace context.
*
- * @context: userspace context to pin memory for
+ * @context: userspace context that is pinning the memory
* @addr: userspace virtual address to start at
* @size: length of region to pin
* @access: IB_ACCESS_xxx flags for memory being pinned
* @dmasync: flush in-flight DMA when the memory region is written
+ * @owner: the ID of the process that owns the memory being pinned
*/
struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
- size_t size, int access, int dmasync)
+ size_t size, int access, int dmasync,
+ struct pid *owner)
{
struct ib_umem *umem;
struct page **page_list;
@@ -94,6 +100,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
unsigned long dma_attrs = 0;
struct scatterlist *sg, *sg_list_start;
unsigned int gup_flags = FOLL_WRITE;
+ struct task_struct *owner_task = current;

if (dmasync)
dma_attrs |= DMA_ATTR_WRITE_BARRIER;
@@ -120,12 +127,18 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
return ERR_PTR(-ENOMEM);
}

+ if (owner) {
+ rcu_read_lock();
+ owner_task = pid_task(owner, PIDTYPE_PID);
+ rcu_read_unlock();
+ }
+
umem->context = context;
umem->length = size;
umem->address = addr;
umem->page_shift = PAGE_SHIFT;
umem->writable = ib_access_writable(access);
- umem->owning_mm = mm = current->mm;
+ umem->owning_mm = mm = owner_task->mm;
mmgrab(mm);

if (access & IB_ACCESS_ON_DEMAND) {
@@ -183,10 +196,11 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,

while (npages) {
down_read(&mm->mmap_sem);
- ret = get_user_pages_longterm(cur_base,
+ ret = get_user_pages_remote_longterm(owner_task,
+ mm, cur_base,
min_t(unsigned long, npages,
- PAGE_SIZE / sizeof (struct page *)),
- gup_flags, page_list, vma_list);
+ PAGE_SIZE / sizeof(struct page *)),
+ gup_flags, page_list, vma_list, NULL);
if (ret < 0) {
up_read(&mm->mmap_sem);
goto umem_release;
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 0828f27..96eca44 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -896,7 +896,7 @@ static int bnxt_re_init_user_qp(struct bnxt_re_dev *rdev, struct bnxt_re_pd *pd,
bytes += (qplib_qp->sq.max_wqe * sizeof(struct sq_psn_search));
bytes = PAGE_ALIGN(bytes);
umem = ib_umem_get(context, ureq.qpsva, bytes,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(umem))
return PTR_ERR(umem);

@@ -909,7 +909,7 @@ static int bnxt_re_init_user_qp(struct bnxt_re_dev *rdev, struct bnxt_re_pd *pd,
bytes = (qplib_qp->rq.max_wqe * BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
bytes = PAGE_ALIGN(bytes);
umem = ib_umem_get(context, ureq.qprva, bytes,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(umem))
goto rqfail;
qp->rumem = umem;
@@ -1371,7 +1371,7 @@ static int bnxt_re_init_user_srq(struct bnxt_re_dev *rdev,
bytes = (qplib_srq->max_wqe * BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
bytes = PAGE_ALIGN(bytes);
umem = ib_umem_get(context, ureq.srqva, bytes,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(umem))
return PTR_ERR(umem);

@@ -2624,7 +2624,7 @@ struct ib_cq *bnxt_re_create_cq(struct ib_device *ibdev,

cq->umem = ib_umem_get(context, req.cq_va,
entries * sizeof(struct cq_base),
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(cq->umem)) {
rc = PTR_ERR(cq->umem);
goto fail;
@@ -3591,7 +3591,7 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
mr->ib_mr.rkey = mr->qplib_mr.rkey;

umem = ib_umem_get(ib_pd->uobject->context, start, length,
- mr_access_flags, 0);
+ mr_access_flags, 0, NULL);
if (IS_ERR(umem)) {
dev_err(rdev_to_dev(rdev), "Failed to get umem");
rc = -EFAULT;
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 54d8b38..fd94576 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -541,7 +541,8 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,

mhp->rhp = rhp;

- mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
+ mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0,
+ owner);
if (IS_ERR(mhp->umem)) {
err = PTR_ERR(mhp->umem);
kfree(mhp);
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index ec9b0b4..fa3ebbc 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -538,7 +538,8 @@ struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,

mhp->rhp = rhp;

- mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
+ mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0,
+ owner);
if (IS_ERR(mhp->umem))
goto err_free_skb;

diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c
index 3a485f5..6fc6f6a 100644
--- a/drivers/infiniband/hw/hns/hns_roce_cq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_cq.c
@@ -224,7 +224,7 @@ static int hns_roce_ib_get_cq_umem(struct hns_roce_dev *hr_dev,
u32 npages;

*umem = ib_umem_get(context, buf_addr, cqe * hr_dev->caps.cq_entry_sz,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(*umem))
return PTR_ERR(*umem);

diff --git a/drivers/infiniband/hw/hns/hns_roce_db.c b/drivers/infiniband/hw/hns/hns_roce_db.c
index e2f93c1..e125502 100644
--- a/drivers/infiniband/hw/hns/hns_roce_db.c
+++ b/drivers/infiniband/hw/hns/hns_roce_db.c
@@ -29,7 +29,7 @@ int hns_roce_db_map_user(struct hns_roce_ucontext *context, unsigned long virt,
refcount_set(&page->refcount, 1);
page->user_virt = (virt & PAGE_MASK);
page->umem = ib_umem_get(&context->ibucontext, virt & PAGE_MASK,
- PAGE_SIZE, 0, 0);
+ PAGE_SIZE, 0, 0, NULL);
if (IS_ERR(page->umem)) {
ret = PTR_ERR(page->umem);
kfree(page);
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index ee5991b..4f023b8 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -1111,7 +1111,7 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return ERR_PTR(-ENOMEM);

mr->umem = ib_umem_get(pd->uobject->context, start, length,
- access_flags, 0);
+ access_flags, 0, owner);
if (IS_ERR(mr->umem)) {
ret = PTR_ERR(mr->umem);
goto err_free;
@@ -1221,7 +1221,7 @@ int hns_roce_rereg_user_mr(struct ib_mr *ibmr, int flags, u64 start, u64 length,
ib_umem_release(mr->umem);

mr->umem = ib_umem_get(ibmr->uobject->context, start, length,
- mr_access_flags, 0);
+ mr_access_flags, 0, NULL);
if (IS_ERR(mr->umem)) {
ret = PTR_ERR(mr->umem);
mr->umem = NULL;
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 54031c5..3e1dfdf 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -614,7 +614,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev,

hr_qp->umem = ib_umem_get(ib_pd->uobject->context,
ucmd.buf_addr, hr_qp->buff_size, 0,
- 0);
+ 0, NULL);
if (IS_ERR(hr_qp->umem)) {
dev_err(dev, "ib_umem_get error for create qp\n");
ret = PTR_ERR(hr_qp->umem);
diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c
index 960b194..bcfc092 100644
--- a/drivers/infiniband/hw/hns/hns_roce_srq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_srq.c
@@ -253,7 +253,7 @@ struct ib_srq *hns_roce_create_srq(struct ib_pd *pd,
}

srq->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
- srq_buf_size, 0, 0);
+ srq_buf_size, 0, 0, NULL);
if (IS_ERR(srq->umem)) {
ret = PTR_ERR(srq->umem);
goto err_srq;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index fc2e6c8..e34ac01 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -1853,7 +1853,7 @@ static struct ib_mr *i40iw_reg_user_mr(struct ib_pd *pd,

if (length > I40IW_MAX_MR_SIZE)
return ERR_PTR(-EINVAL);
- region = ib_umem_get(pd->uobject->context, start, length, acc, 0);
+ region = ib_umem_get(pd->uobject->context, start, length, acc, 0, NULL);
if (IS_ERR(region))
return (struct ib_mr *)region;

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 4351234..a66a1ef 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -144,7 +144,7 @@ static int mlx4_ib_get_cq_umem(struct mlx4_ib_dev *dev, struct ib_ucontext *cont
int n;

*umem = ib_umem_get(context, buf_addr, cqe * cqe_size,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(*umem))
return PTR_ERR(*umem);

diff --git a/drivers/infiniband/hw/mlx4/doorbell.c b/drivers/infiniband/hw/mlx4/doorbell.c
index c517409..6abc3b7 100644
--- a/drivers/infiniband/hw/mlx4/doorbell.c
+++ b/drivers/infiniband/hw/mlx4/doorbell.c
@@ -62,7 +62,7 @@ int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
page->user_virt = (virt & PAGE_MASK);
page->refcnt = 0;
page->umem = ib_umem_get(&context->ibucontext, virt & PAGE_MASK,
- PAGE_SIZE, 0, 0);
+ PAGE_SIZE, 0, 0, NULL);
if (IS_ERR(page->umem)) {
err = PTR_ERR(page->umem);
kfree(page);
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index 76fa83c..4a474698 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -398,7 +398,7 @@ static struct ib_umem *mlx4_get_umem_mr(struct ib_ucontext *context, u64 start,
up_read(&current->mm->mmap_sem);
}

- return ib_umem_get(context, start, length, access_flags, 0);
+ return ib_umem_get(context, start, length, access_flags, 0, NULL);
}

struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 971e9a9..4a984da 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1017,7 +1017,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,

qp->umem = ib_umem_get(pd->uobject->context,
(src == MLX4_IB_QP_SRC) ? ucmd.qp.buf_addr :
- ucmd.wq.buf_addr, qp->buf_size, 0, 0);
+ ucmd.wq.buf_addr, qp->buf_size, 0, 0, NULL);
if (IS_ERR(qp->umem)) {
err = PTR_ERR(qp->umem);
goto err;
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
index 4456f1b..2919d62 100644
--- a/drivers/infiniband/hw/mlx4/srq.c
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -114,7 +114,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
}

srq->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
- buf_size, 0, 0);
+ buf_size, 0, 0, NULL);
if (IS_ERR(srq->umem)) {
err = PTR_ERR(srq->umem);
goto err_srq;
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 90f1b0b..847f4ab 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -709,7 +709,7 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata,

cq->buf.umem = ib_umem_get(context, ucmd.buf_addr,
entries * ucmd.cqe_size,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(cq->buf.umem)) {
err = PTR_ERR(cq->buf.umem);
return err;
@@ -1126,7 +1126,7 @@ static int resize_user(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,

umem = ib_umem_get(context, ucmd.buf_addr,
(size_t)ucmd.cqe_size * entries,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(umem)) {
err = PTR_ERR(umem);
return err;
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 5a588f3..7dafdc3 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -1195,7 +1195,7 @@ static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
if (err)
return err;

- obj->umem = ib_umem_get(ucontext, addr, size, access, 0);
+ obj->umem = ib_umem_get(ucontext, addr, size, access, 0, NULL);
if (IS_ERR(obj->umem))
return PTR_ERR(obj->umem);

diff --git a/drivers/infiniband/hw/mlx5/doorbell.c b/drivers/infiniband/hw/mlx5/doorbell.c
index a0e4e6d..8527574 100644
--- a/drivers/infiniband/hw/mlx5/doorbell.c
+++ b/drivers/infiniband/hw/mlx5/doorbell.c
@@ -64,7 +64,7 @@ int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt,
page->user_virt = (virt & PAGE_MASK);
page->refcnt = 0;
page->umem = ib_umem_get(&context->ibucontext, virt & PAGE_MASK,
- PAGE_SIZE, 0, 0);
+ PAGE_SIZE, 0, 0, NULL);
if (IS_ERR(page->umem)) {
err = PTR_ERR(page->umem);
kfree(page);
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 6add486..8eb606a 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -849,7 +849,7 @@ static int mr_cache_max_order(struct mlx5_ib_dev *dev)
static int mr_umem_get(struct ib_pd *pd, u64 start, u64 length,
int access_flags, struct ib_umem **umem,
int *npages, int *page_shift, int *ncont,
- int *order)
+ int *order, struct pid *owner)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
struct ib_umem *u;
@@ -857,7 +857,8 @@ static int mr_umem_get(struct ib_pd *pd, u64 start, u64 length,

*umem = NULL;

- u = ib_umem_get(pd->uobject->context, start, length, access_flags, 0);
+ u = ib_umem_get(pd->uobject->context, start, length, access_flags, 0,
+ owner);
err = PTR_ERR_OR_ZERO(u);
if (err) {
mlx5_ib_dbg(dev, "umem get failed (%d)\n", err);
@@ -1328,8 +1329,8 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
if (!IS_ENABLED(CONFIG_INFINIBAND_USER_MEM))
return ERR_PTR(-EOPNOTSUPP);

- mlx5_ib_dbg(dev, "start 0x%llx, virt_addr 0x%llx, length 0x%llx, access_flags 0x%x\n",
- start, virt_addr, length, access_flags);
+ mlx5_ib_dbg(dev, "start=0x%llx, virt_addr=0x%llx, length=0x%llx, access_flags=0x%x owner=%i\n",
+ start, virt_addr, length, access_flags, pid_vnr(owner));

#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
if (!start && length == U64_MAX) {
@@ -1337,7 +1338,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
!(dev->odp_caps.general_caps & IB_ODP_SUPPORT_IMPLICIT))
return ERR_PTR(-EINVAL);

- mr = mlx5_ib_alloc_implicit_mr(to_mpd(pd), access_flags);
+ mr = mlx5_ib_alloc_implicit_mr(to_mpd(pd), access_flags, owner);
if (IS_ERR(mr))
return ERR_CAST(mr);
return &mr->ibmr;
@@ -1345,7 +1346,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
#endif

err = mr_umem_get(pd, start, length, access_flags, &umem, &npages,
- &page_shift, &ncont, &order);
+ &page_shift, &ncont, &order, owner);

if (err < 0)
return ERR_PTR(err);
@@ -1496,7 +1497,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
ib_umem_release(mr->umem);
mr->umem = NULL;
err = mr_umem_get(pd, addr, len, access_flags, &mr->umem,
- &npages, &page_shift, &ncont, &order);
+ &npages, &page_shift, &ncont, &order, NULL);
if (err)
goto err;
}
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 01e0f62..c317e18 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -492,13 +492,14 @@ static struct ib_umem_odp *implicit_mr_get_data(struct mlx5_ib_mr *mr,
}

struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd,
- int access_flags)
+ int access_flags,
+ struct pid *owner)
{
struct ib_ucontext *ctx = pd->ibpd.uobject->context;
struct mlx5_ib_mr *imr;
struct ib_umem *umem;

- umem = ib_umem_get(ctx, 0, 0, IB_ACCESS_ON_DEMAND, 0);
+ umem = ib_umem_get(ctx, 0, 0, IB_ACCESS_ON_DEMAND, 0, owner);
if (IS_ERR(umem))
return ERR_CAST(umem);

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index dd2ae64..f2b72e7 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -654,7 +654,7 @@ static int mlx5_ib_umem_get(struct mlx5_ib_dev *dev,
{
int err;

- *umem = ib_umem_get(pd->uobject->context, addr, size, 0, 0);
+ *umem = ib_umem_get(pd->uobject->context, addr, size, 0, 0, NULL);
if (IS_ERR(*umem)) {
mlx5_ib_dbg(dev, "umem_get failed\n");
return PTR_ERR(*umem);
@@ -710,7 +710,7 @@ static int create_user_rq(struct mlx5_ib_dev *dev, struct ib_pd *pd,

context = to_mucontext(pd->uobject->context);
rwq->umem = ib_umem_get(pd->uobject->context, ucmd->buf_addr,
- rwq->buf_size, 0, 0);
+ rwq->buf_size, 0, 0, NULL);
if (IS_ERR(rwq->umem)) {
mlx5_ib_dbg(dev, "umem_get failed\n");
err = PTR_ERR(rwq->umem);
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index 4e8d180..d51f6f3 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -80,7 +80,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
srq->wq_sig = !!(ucmd.flags & MLX5_SRQ_FLAG_SIGNATURE);

srq->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, buf_size,
- 0, 0);
+ 0, 0, NULL);
if (IS_ERR(srq->umem)) {
mlx5_ib_dbg(dev, "failed umem get, size %d\n", buf_size);
err = PTR_ERR(srq->umem);
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 77e678e..5cc9f3c 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -933,7 +933,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return ERR_PTR(-ENOMEM);

mr->umem = ib_umem_get(pd->uobject->context, start, length, acc,
- ucmd.mr_attrs & MTHCA_MR_DMASYNC);
+ ucmd.mr_attrs & MTHCA_MR_DMASYNC, owner);

if (IS_ERR(mr->umem)) {
err = PTR_ERR(mr->umem);
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index e07cb02..0e3295e 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -2134,7 +2134,8 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u8 stag_key;
int first_page = 1;

- region = ib_umem_get(pd->uobject->context, start, length, acc, 0);
+ region = ib_umem_get(pd->uobject->context, start, length, acc, 0,
+ owner);
if (IS_ERR(region)) {
return (struct ib_mr *)region;
}
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 01d076a..e817d45 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -917,7 +917,8 @@ struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
mr = kzalloc(sizeof(*mr), GFP_KERNEL);
if (!mr)
return ERR_PTR(status);
- mr->umem = ib_umem_get(ibpd->uobject->context, start, len, acc, 0);
+ mr->umem = ib_umem_get(ibpd->uobject->context, start, len, acc, 0,
+ owner);
if (IS_ERR(mr->umem)) {
status = -EFAULT;
goto umem_err;
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index e1ccf32..15b87d0 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -748,7 +748,8 @@ static inline int qedr_init_user_queue(struct ib_ucontext *ib_ctx,

q->buf_addr = buf_addr;
q->buf_len = buf_len;
- q->umem = ib_umem_get(ib_ctx, q->buf_addr, q->buf_len, access, dmasync);
+ q->umem = ib_umem_get(ib_ctx, q->buf_addr, q->buf_len, access, dmasync,
+ NULL);
if (IS_ERR(q->umem)) {
DP_ERR(dev, "create user queue: failed ib_umem_get, got %ld\n",
PTR_ERR(q->umem));
@@ -1359,7 +1360,7 @@ static int qedr_init_srq_user_params(struct ib_ucontext *ib_ctx,

srq->prod_umem = ib_umem_get(ib_ctx, ureq->prod_pair_addr,
sizeof(struct rdma_srq_producers),
- access, dmasync);
+ access, dmasync, NULL);
if (IS_ERR(srq->prod_umem)) {
qedr_free_pbl(srq->dev, &srq->usrq.pbl_info, srq->usrq.pbl_tbl);
ib_umem_release(srq->usrq.umem);
@@ -2719,7 +2720,8 @@ struct ib_mr *qedr_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,

mr->type = QEDR_MR_USER;

- mr->umem = ib_umem_get(ibpd->uobject->context, start, len, acc, 0);
+ mr->umem = ib_umem_get(ibpd->uobject->context, start, len, acc, 0,
+ NULL);
if (IS_ERR(mr->umem)) {
rc = -EFAULT;
goto err0;
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
index 0f004c7..4ade730 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
@@ -142,7 +142,7 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
}

cq->umem = ib_umem_get(context, ucmd.buf_addr, ucmd.buf_size,
- IB_ACCESS_LOCAL_WRITE, 1);
+ IB_ACCESS_LOCAL_WRITE, 1, NULL);
if (IS_ERR(cq->umem)) {
ret = PTR_ERR(cq->umem);
goto err_cq;
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
index fa96fa4..f5466ad 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
@@ -127,7 +127,7 @@ struct ib_mr *pvrdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
}

umem = ib_umem_get(pd->uobject->context, start,
- length, access_flags, 0);
+ length, access_flags, 0, NULL);
if (IS_ERR(umem)) {
dev_warn(&dev->pdev->dev,
"could not get umem for mem region\n");
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
index 3acf74c..ae8c826 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
@@ -264,7 +264,8 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
/* set qp->sq.wqe_cnt, shift, buf_size.. */
qp->rumem = ib_umem_get(pd->uobject->context,
ucmd.rbuf_addr,
- ucmd.rbuf_size, 0, 0);
+ ucmd.rbuf_size, 0, 0,
+ NULL);
if (IS_ERR(qp->rumem)) {
ret = PTR_ERR(qp->rumem);
goto err_qp;
@@ -277,7 +278,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,

qp->sumem = ib_umem_get(pd->uobject->context,
ucmd.sbuf_addr,
- ucmd.sbuf_size, 0, 0);
+ ucmd.sbuf_size, 0, 0, NULL);
if (IS_ERR(qp->sumem)) {
if (!is_srq)
ib_umem_release(qp->rumem);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
index 06ba7c7..d235fcd 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
@@ -155,7 +155,7 @@ struct ib_srq *pvrdma_create_srq(struct ib_pd *pd,

srq->umem = ib_umem_get(pd->uobject->context,
ucmd.buf_addr,
- ucmd.buf_size, 0, 0);
+ ucmd.buf_size, 0, 0, NULL);
if (IS_ERR(srq->umem)) {
ret = PTR_ERR(srq->umem);
goto err_srq;
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index 2bc95c9..f4cdcfe 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -390,7 +390,7 @@ struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return ERR_PTR(-EINVAL);

umem = ib_umem_get(pd->uobject->context, start, length,
- mr_access_flags, 0);
+ mr_access_flags, 0, NULL);
if (IS_ERR(umem))
return (void *)umem;

diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
index 9d3916b..f91346a 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -171,7 +171,8 @@ int rxe_mem_init_user(struct rxe_pd *pd, u64 start,
void *vaddr;
int err;

- umem = ib_umem_get(pd->ibpd.uobject->context, start, length, access, 0);
+ umem = ib_umem_get(pd->ibpd.uobject->context, start, length,
+ access, 0, NULL);
if (IS_ERR(umem)) {
pr_warn("err %d from rxe_umem_get\n",
(int)PTR_ERR(umem));
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index 5d3755e..4951dcb 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -81,7 +81,8 @@ static inline size_t ib_umem_num_pages(struct ib_umem *umem)
#ifdef CONFIG_INFINIBAND_USER_MEM

struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
- size_t size, int access, int dmasync);
+ size_t size, int access, int dmasync,
+ struct pid *owner);
void ib_umem_release(struct ib_umem *umem);
int ib_umem_page_count(struct ib_umem *umem);
int ib_umem_copy_from(void *dst, struct ib_umem *umem, size_t offset,
--
2.7.4
\
 
 \ /
  Last update: 2019-01-29 14:27    [W:0.120 / U:5.632 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site