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86824e60b0
This code was using get_user_pages*(), in a "Case 2" scenario
(DMA/RDMA), using the categorization from [1]. That means that it's
time to convert the get_user_pages*() + put_page() calls to
pin_user_pages*() + unpin_user_pages() calls.
There is some helpful background in [2]: basically, this is a small
part of fixing a long-standing disconnect between pinning pages, and
file systems' use of those pages.
[1] Documentation/core-api/pin_user_pages.rst
[2] "Explicit pinning of user-space pages":
https://lwn.net/Articles/807108/
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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| .. | ||
| cmdstream.xml.h | ||
| common.xml.h | ||
| etnaviv_buffer.c | ||
| etnaviv_cmd_parser.c | ||
| etnaviv_cmdbuf.c | ||
| etnaviv_cmdbuf.h | ||
| etnaviv_drv.c | ||
| etnaviv_drv.h | ||
| etnaviv_dump.c | ||
| etnaviv_dump.h | ||
| etnaviv_gem_prime.c | ||
| etnaviv_gem_submit.c | ||
| etnaviv_gem.c | ||
| etnaviv_gem.h | ||
| etnaviv_gpu.c | ||
| etnaviv_gpu.h | ||
| etnaviv_hwdb.c | ||
| etnaviv_iommu_v2.c | ||
| etnaviv_iommu.c | ||
| etnaviv_mmu.c | ||
| etnaviv_mmu.h | ||
| etnaviv_perfmon.c | ||
| etnaviv_perfmon.h | ||
| etnaviv_sched.c | ||
| etnaviv_sched.h | ||
| Kconfig | ||
| Makefile | ||
| state_3d.xml.h | ||
| state_blt.xml.h | ||
| state_hi.xml.h | ||
| state.xml.h | ||