Make various changes to the documentation formatting to avoid docs
build errors and otherwise improve the produced output format:
- use bullets for lists
- don't use a '.' at the end of echo commands
- fix indentation
Documentation/admin-guide/nfs/pnfs-block-server.rst:55: ERROR: Unexpected indentation. [docutils]
Documentation/admin-guide/nfs/pnfs-scsi-server.rst:37: ERROR: Unexpected indentation. [docutils]
Fixes: 6a97f70b45e7 ("NFSD: Enforce timeout on layout recall and integrate lease manager fencing")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
When a layout conflict triggers a recall, enforcing a timeout is
necessary to prevent excessive nfsd threads from being blocked in
__break_lease ensuring the server continues servicing incoming
requests efficiently.
This patch introduces a new function to lease_manager_operations:
lm_breaker_timedout: Invoked when a lease recall times out and is
about to be disposed of. This function enables the lease manager
to inform the caller whether the file_lease should remain on the
flc_list or be disposed of.
For the NFSD lease manager, this function now handles layout recall
timeouts. If the layout type supports fencing and the client has not
been fenced, a fence operation is triggered to prevent the client
from accessing the block device.
While the fencing operation is in progress, the conflicting file_lease
remains on the flc_list until fencing is complete. This guarantees
that no other clients can access the file, and the client with
exclusive access is properly blocked before disposal.
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
The documentation for nfs4_unique_id is out-of-date. In particular it
claim that when nfs4_unique_id is set, the host name is not used. since
Commit 55b592933b ("NFSv4: Fix nfs4_init_uniform_client_string for net
namespaces") both the unique_id AND the host name are used.
Update the documentation to match the code.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
It was an interesting idea but nobody seems to be using it, it's buggy
at this point, and nfs4state.c is already complicated enough without it.
The new nfsd/clients/ code provides some of the same functionality, and
could probably do more if desired.
This feature has been deprecated since 9d60d93198 ("Deprecate nfsd
fault injection").
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200627072935.62652-1-grandmaster@al2klimov.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This patch converts nfs.txt to RST. It also moves it to admin-guide.
The reason for moving it is because this document contains information
useful for system administrators, as noted on the following paragraph:
'The purpose of this document is to provide information on some of the
special features of the NFS client that can be configured by system
administrators'.
Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Link: https://lore.kernel.org/r/cb9f2da2f2f6dd432b4cf9e05f79f74f4d54b6ab.1578697871.git.dwlsalmeida@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
