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author | Jason Gunthorpe <jgg@mellanox.com> | 2020-01-08 19:22:06 +0200 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-01-13 16:20:16 -0400 |
commit | 5c55cfd6a553d008fcd54e4a4e3fed1340ee5090 (patch) | |
tree | 0dd95d4166c15b2bee2fbb220f9f0d5e7d12d08f /drivers/scsi/sni_53c710.c | |
parent | 3e032c0e92aa0c4c0b46c5e2d6d41706c8fce488 (diff) | |
download | linux-5c55cfd6a553d008fcd54e4a4e3fed1340ee5090.tar.gz |
RDMA/core: Use READ_ONCE for ib_ufile.async_file
The writer for async_file holds the ucontext_lock, while the readers are left unlocked. Most readers rely on an implicit locking, either by having a uobject (which cannot be created before a context) or by holding the ib_ufile kref. However ib_uverbs_free_hw_resources() has no implicit lock and has a possible race. Make this all clear and sane by using READ_ONCE consistently. Link: https://lore.kernel.org/r/1578504126-9400-15-git-send-email-yishaih@mellanox.com Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/scsi/sni_53c710.c')
0 files changed, 0 insertions, 0 deletions