RDMA/rtrs-srv: Duplicated session name is not allowed

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If two clients try to use the same session name, rtrs-server generates a
kernel error that it failed to create the sysfs because the filename
is duplicated.

This patch adds code to check if there already exists the same session
name with the different UUID. If a client tries to add more session,
it sends the UUID and the session name. Therefore it is ok if there is
already same session name with the same UUID. The rtrs-server must fail
only-if there is the same session name with the different UUID.

Link: https://lore.kernel.org/r/20210528113018.52290-17-jinpu.wang@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Aleksei Marov <aleksei.marov@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

...

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Gioh Kim 2021-05-28 13:30:14 +02:00 • committed by Jason Gunthorpe

parent 64bce1ee97

commit 07c1402729

1 changed files with 41 additions and 1 deletions

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drivers/infiniband/ulp/rtrs/rtrs-srv.c

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