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| author | Leon Romanovsky <leonro@mellanox.com> | 2020-02-11 19:03:55 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-16 18:37:09 -0800 |
| commit | 0d4597c8c5abdeeaf50774066c16683f30184dc8 (patch) | |
| tree | cde01b655ba009b31318bbc9336f3b204b249d41 /net/core/fib_rules.c | |
| parent | afecdb376bd81d7e16578f0cfe82a1aec7ae18f3 (diff) | |
| download | linux-0d4597c8c5abdeeaf50774066c16683f30184dc8.tar.gz linux-0d4597c8c5abdeeaf50774066c16683f30184dc8.tar.bz2 linux-0d4597c8c5abdeeaf50774066c16683f30184dc8.zip | |
net/rds: Track user mapped pages through special API
Convert net/rds to use the newly introduces pin_user_pages() API,
which properly sets FOLL_PIN. Setting FOLL_PIN is now required for
code that requires tracking of pinned pages.
Note that this effectively changes the code's behavior: it now
ultimately calls set_page_dirty_lock(), instead of set_page_dirty().
This is probably more accurate.
As Christoph Hellwig put it, "set_page_dirty() is only safe if we are
dealing with a file backed page where we have reference on the inode it
hangs off." [1]
[1] https://lore.kernel.org/r/20190723153640.GB720@lst.de
Cc: Hans Westgaard Ry <hans.westgaard.ry@oracle.com>
Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/fib_rules.c')
0 files changed, 0 insertions, 0 deletions