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akpm@linux-foundation.org 2d15eb31b5 mm/gup: add make_dirty arg to put_user_pages_dirty_lock() 
[11~From: John Hubbard <jhubbard@nvidia.com>
Subject: mm/gup: add make_dirty arg to put_user_pages_dirty_lock()

Patch series "mm/gup: add make_dirty arg to put_user_pages_dirty_lock()",
v3.

There are about 50+ patches in my tree [2], and I'll be sending out the
remaining ones in a few more groups:

* The block/bio related changes (Jerome mostly wrote those, but I've had
  to move stuff around extensively, and add a little code)

* mm/ changes

* other subsystem patches

* an RFC that shows the current state of the tracking patch set.  That
  can only be applied after all call sites are converted, but it's good to
  get an early look at it.

This is part a tree-wide conversion, as described in fc1d8e7cca ("mm:
introduce put_user_page*(), placeholder versions").

This patch (of 3):

Provide more capable variation of put_user_pages_dirty_lock(), and delete
put_user_pages_dirty().  This is based on the following:

1.  Lots of call sites become simpler if a bool is passed into
   put_user_page*(), instead of making the call site choose which
   put_user_page*() variant to call.

2.  Christoph Hellwig's observation that set_page_dirty_lock() is
   usually correct, and set_page_dirty() is usually a bug, or at least
   questionable, within a put_user_page*() calling chain.

This leads to the following API choices:

    * put_user_pages_dirty_lock(page, npages, make_dirty)

    * There is no put_user_pages_dirty(). You have to
      hand code that, in the rare case that it's
      required.

[jhubbard@nvidia.com: remove unused variable in siw_free_plist()]
  Link: http://lkml.kernel.org/r/20190729074306.10368-1-jhubbard@nvidia.com
Link: http://lkml.kernel.org/r/20190724044537.10458-2-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-24 15:54:08 -07:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile infiniband: prefix header search paths with $(srctree)/ 2019-01-25 15:28:50 -07:00
usnic_abi.h usnic: add missing clauses to BSD license 2015-10-06 13:43:25 -04:00
usnic_common_pkt_hdr.h RDMA: Adding ethertype ETH_P_IBOE 2017-01-10 14:05:11 -05:00
usnic_common_util.h {net,IB}/{rxe,usnic}: Utilize generic mac to eui32 function 2017-04-25 14:21:34 -04:00
usnic_debugfs.c infiniband: usnic: no need to check return value of debugfs_create functions 2019-01-24 09:22:30 -07:00
usnic_debugfs.h usnic: add missing clauses to BSD license 2015-10-06 13:43:25 -04:00
usnic_fwd.c RDMA/usnic: Suppress a compiler warning 2018-07-26 11:39:06 -06:00
usnic_fwd.h RDMA/usnic: Suppress a compiler warning 2018-07-26 11:39:06 -06:00
usnic_ib_main.c RDMA/usnic: Avoid overly large buffers on stack 2019-09-13 16:55:55 -03:00
usnic_ib_qp_grp.c IB/usnic: fix spelling mistake "miniumum" -> "minimum" 2018-11-29 15:59:40 -07:00
usnic_ib_qp_grp.h RDMA/usnic: Instantiate data structures once 2017-10-14 20:47:07 -04:00
usnic_ib_sysfs.c RDMA: Introduce and use rdma_device_to_ibdev() 2019-01-14 13:12:03 -07:00
usnic_ib_sysfs.h RDMA/drivers: Use core provided API for registering device attributes 2018-10-17 03:45:01 -06:00
usnic_ib_verbs.c RDMA: Introduce ib_port_phys_state enum 2019-08-12 10:18:52 -04:00
usnic_ib_verbs.h RDMA: Convert CQ allocations to be under core responsibility 2019-06-11 16:39:49 -04:00
usnic_ib.h RDMA: Convert CQ allocations to be under core responsibility 2019-06-11 16:39:49 -04:00
usnic_log.h usnic: add missing clauses to BSD license 2015-10-06 13:43:25 -04:00
usnic_transport.c IB/usnic: fix spelling mistake "unvalid" -> "invalid" 2018-09-25 14:35:06 -06:00
usnic_transport.h usnic: add missing clauses to BSD license 2015-10-06 13:43:25 -04:00
usnic_uiom_interval_tree.c lib/interval_tree: fast overlap detection 2017-09-08 18:26:49 -07:00
usnic_uiom_interval_tree.h lib/interval_tree: fast overlap detection 2017-09-08 18:26:49 -07:00
usnic_uiom.c mm/gup: add make_dirty arg to put_user_pages_dirty_lock() 2019-09-24 15:54:08 -07:00
usnic_uiom.h IB: Remove 'uobject->context' dependency in object destroy APIs 2019-04-01 14:59:35 -03:00
usnic_vnic.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
usnic_vnic.h usnic: add missing clauses to BSD license 2015-10-06 13:43:25 -04:00
usnic.h usnic: add missing clauses to BSD license 2015-10-06 13:43:25 -04:00