[PATCH 0/3 v2] [j/k linux-azure] Azure: smb3: allow deferred close timeout to be configurable

[Tim Gardner]

BugLink: https://bugs.launchpad.net/bugs/2013349

v2: Added 2 more patches as requested by MSFT

SRU Justification

[Impact]

Microsoft has requested the ability to set a deferred close timeout to SMB3 connections.

Upstream commit 5efdd9122eff772eae2feae9f0fc0ec02d4846a3 ('smb3: allow deferred close timeout to be configurable')
Upstream commit 7e0e76d99079be13c9961dde7c93b2d1ee665af4 ('smb3: lower default deferred close timeout to address perf regression')

Not strictly required, but requested by MSFT nonetheless, and also applied to lunar/linux-azure:

Upstream commit 47f9e4c924025c5be87959d3335e66fcbb7f6b5c ('keys: Do not cache key in task struct if key is requested from kernel thread')

[ Regression Potential ]

Possible regressions include connections not closing,
or closing later then the timeout would indicate.

[ Test Plan ]

Microsoft tested.

[ Other Info ]

SF: #00357322