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| author | Jason Gunthorpe <jgg@mellanox.com> | 2020-01-15 20:20:44 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-01-25 14:48:33 -0400 |
| commit | 6b3712c0246ca7b2b8fa05eab2362cf267410f7e (patch) | |
| tree | 92e6c4176876b55dad68d9200a2ec2f4838db2c0 /Documentation/process | |
| parent | e8b3a426fb4a9e2856a69b6e19de044c7416c316 (diff) | |
| download | linux-6b3712c0246ca7b2b8fa05eab2362cf267410f7e.tar.gz | |
RDMA/core: Ensure that rdma_user_mmap_entry_remove() is a fence
The set of entry->driver_removed is missing locking, protect it with
xa_lock() which is held by the only reader.
Otherwise readers may continue to see driver_removed = false after
rdma_user_mmap_entry_remove() returns and may continue to try and
establish new mmaps.
Fixes: 3411f9f01b76 ("RDMA/core: Create mmap database and cookie helper functions")
Link: https://lore.kernel.org/r/20200115202041.GA17199@ziepe.ca
Reviewed-by: Gal Pressman <galpress@amazon.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'Documentation/process')
0 files changed, 0 insertions, 0 deletions