Trond Myklebust 3145fe0ebb nfsd: Replace use of rwsem with errseq_t
commit 555dbf1a9aac6d3150c8b52fa35f768a692f4eeb upstream.

The nfsd_file nf_rwsem is currently being used to separate file write
and commit instances to ensure that we catch errors and apply them to
the correct write/commit.
We can improve scalability at the expense of a little accuracy (some
extra false positives) by replacing the nf_rwsem with more careful
use of the errseq_t mechanism to track errors across the different
operations.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
[ cel: rebased on zero-verifier fix ]
Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-22 14:21:54 +02:00
..
2022-02-08 18:34:04 +01:00
2021-08-19 09:02:55 +09:00
2021-08-26 22:28:02 +02:00
2022-06-09 10:22:55 +02:00
2021-12-29 12:28:59 +01:00
2021-09-03 15:33:47 -07:00
2021-08-16 10:50:32 -06:00
2022-05-15 20:18:52 +02:00
2021-08-19 09:02:55 +09:00
2021-11-25 09:48:46 +01:00
2022-06-09 10:23:09 +02:00
2021-09-09 13:25:49 -07:00
2022-06-09 10:23:32 +02:00
2021-08-18 22:08:24 +02:00
2021-12-14 10:57:15 +01:00
2021-08-10 17:57:22 +02:00