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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-15 20:38:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-15 20:38:15 -0700 |
commit | 2a3c389a0fde49b241430df806a34276568cfb29 (patch) | |
tree | 9cf35829317e8cc2aaffc4341fb824dad63fce02 /drivers/infiniband/core/umem.c | |
parent | Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd (diff) | |
parent | RMDA/siw: Require a 64 bit arch (diff) | |
download | linux-dev-2a3c389a0fde49b241430df806a34276568cfb29.tar.xz linux-dev-2a3c389a0fde49b241430df806a34276568cfb29.zip |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"A smaller cycle this time. Notably we see another new driver, 'Soft
iWarp', and the deletion of an ancient unused driver for nes.
- Revise and simplify the signature offload RDMA MR APIs
- More progress on hoisting object allocation boiler plate code out
of the drivers
- Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib,
i40iw
- Tree wide cleanups: struct_size, put_user_page, xarray, rst doc
conversion
- Removal of obsolete ib_ucm chardev and nes driver
- netlink based discovery of chardevs and autoloading of the modules
providing them
- Move more of the rdamvt/hfi1 uapi to include/uapi/rdma
- New driver 'siw' for software based iWarp running on top of netdev,
much like rxe's software RoCE.
- mlx5 feature to report events in their raw devx format to userspace
- Expose per-object counters through rdma tool
- Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
from netdev"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (194 commits)
RMDA/siw: Require a 64 bit arch
RDMA/siw: Mark expected switch fall-throughs
RDMA/core: Fix -Wunused-const-variable warnings
rdma/siw: Remove set but not used variable 's'
rdma/siw: Add missing dependencies on LIBCRC32C and DMA_VIRT_OPS
RDMA/siw: Add missing rtnl_lock around access to ifa
rdma/siw: Use proper enumerated type in map_cqe_status
RDMA/siw: Remove unnecessary kthread create/destroy printouts
IB/rdmavt: Fix variable shadowing issue in rvt_create_cq
RDMA/core: Fix race when resolving IP address
RDMA/core: Make rdma_counter.h compile stand alone
IB/core: Work on the caller socket net namespace in nldev_newlink()
RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
RDMA/mlx5: Set RDMA DIM to be enabled by default
RDMA/nldev: Added configuration of RDMA dynamic interrupt moderation to netlink
RDMA/core: Provide RDMA DIM support for ULPs
linux/dim: Implement RDMA adaptive moderation (DIM)
IB/mlx5: Report correctly tag matching rendezvous capability
docs: infiniband: add it to the driver-api bookset
IB/mlx5: Implement VHCA tunnel mechanism in DEVX
...
Diffstat (limited to 'drivers/infiniband/core/umem.c')
-rw-r--r-- | drivers/infiniband/core/umem.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index e7ea819fcb11..08da840ed7ee 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -54,9 +54,10 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d for_each_sg_page(umem->sg_head.sgl, &sg_iter, umem->sg_nents, 0) { page = sg_page_iter_page(&sg_iter); - if (!PageDirty(page) && umem->writable && dirty) - set_page_dirty_lock(page); - put_page(page); + if (umem->writable && dirty) + put_user_pages_dirty_lock(&page, 1); + else + put_user_page(page); } sg_free_table(&umem->sg_head); @@ -244,7 +245,6 @@ struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr, 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; mmgrab(mm); @@ -361,6 +361,9 @@ static void __ib_umem_release_tail(struct ib_umem *umem) */ void ib_umem_release(struct ib_umem *umem) { + if (!umem) + return; + if (umem->is_odp) { ib_umem_odp_release(to_ib_umem_odp(umem)); __ib_umem_release_tail(umem); @@ -385,7 +388,7 @@ int ib_umem_page_count(struct ib_umem *umem) n = 0; for_each_sg(umem->sg_head.sgl, sg, umem->nmap, i) - n += sg_dma_len(sg) >> umem->page_shift; + n += sg_dma_len(sg) >> PAGE_SHIFT; return n; } |