mbox series

[v2,0/5] dfs fixes

Message ID 20230117220041.15905-1-pc@cjr.nz (mailing list archive)
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Series dfs fixes | expand

Message

Paulo Alcantara Jan. 17, 2023, 10 p.m. UTC
Hi Steve,

The most important fix is 1/5 that should fix those random hangs that
we've observed while running dfs tests on buildbot.

I have run twice 50 dfs tests against Windows 2022 and samba 4.16 with
these mount options

	vers=3.1.1,echo_interval=10,{,hard}
	vers=3.0,echo_interval=10,{,hard}
	vers=3.0,echo_interval=10,{,sign}
	vers=3.0,echo_interval=10,{,seal}
	vers=2.1,echo_interval=10,{,hard}
	vers=1.0,echo_interval=10,{,hard}

The only tests which failed (2%) were with SMB1 UNIX extensions
against samba.  readdir(2) was getting STATUS_INVALID_LEVEL from
QUERY_PATH_INFO after failover for some reason -- I'll look into that
when time allows.  Those failures aren't related to this series,
though.

I also did some quick tests with kerberos.

---
v1 -> v2: add comments in patch 1/5 as suggested by Aurelien

Paulo Alcantara (5):
  cifs: fix potential deadlock in cache_refresh_path()
  cifs: avoid re-lookups in dfs_cache_find()
  cifs: don't take exclusive lock for updating target hints
  cifs: remove duplicate code in __refresh_tcon()
  cifs: handle cache lookup errors different than -ENOENT

 fs/cifs/dfs_cache.c | 191 +++++++++++++++++++++++---------------------
 1 file changed, 100 insertions(+), 91 deletions(-)

Comments

Steve French Jan. 18, 2023, 1:33 a.m. UTC | #1
tentatively merged into cifs-2.6.git for-next pending more review/testing

On Tue, Jan 17, 2023 at 4:00 PM Paulo Alcantara <pc@cjr.nz> wrote:
>
> Hi Steve,
>
> The most important fix is 1/5 that should fix those random hangs that
> we've observed while running dfs tests on buildbot.
>
> I have run twice 50 dfs tests against Windows 2022 and samba 4.16 with
> these mount options
>
>         vers=3.1.1,echo_interval=10,{,hard}
>         vers=3.0,echo_interval=10,{,hard}
>         vers=3.0,echo_interval=10,{,sign}
>         vers=3.0,echo_interval=10,{,seal}
>         vers=2.1,echo_interval=10,{,hard}
>         vers=1.0,echo_interval=10,{,hard}
>
> The only tests which failed (2%) were with SMB1 UNIX extensions
> against samba.  readdir(2) was getting STATUS_INVALID_LEVEL from
> QUERY_PATH_INFO after failover for some reason -- I'll look into that
> when time allows.  Those failures aren't related to this series,
> though.
>
> I also did some quick tests with kerberos.
>
> ---
> v1 -> v2: add comments in patch 1/5 as suggested by Aurelien
>
> Paulo Alcantara (5):
>   cifs: fix potential deadlock in cache_refresh_path()
>   cifs: avoid re-lookups in dfs_cache_find()
>   cifs: don't take exclusive lock for updating target hints
>   cifs: remove duplicate code in __refresh_tcon()
>   cifs: handle cache lookup errors different than -ENOENT
>
>  fs/cifs/dfs_cache.c | 191 +++++++++++++++++++++++---------------------
>  1 file changed, 100 insertions(+), 91 deletions(-)
>
> --
> 2.39.0
>