BMC/Intel-BMC/linux.git/fs/nfsd/nfssvc.c, branch dev

nfsd: default NFSv4.2 to on

2015-02-09T19:58:50+00:00

The code seems to work. The protocol looks stable. The kernel's version defaults can be overridden by rpc.nfsd arguments. Signed-off-by: J. Bruce Fields

sunrpc: move rq_dropme flag into rq_flags

2014-12-09T16:22:20+00:00

Signed-off-by: Jeff Layton Signed-off-by: J. Bruce Fields

NFSD: Decrease nfsd_users in nfsd_startup_generic fail

2014-08-01T20:26:09+00:00

A memory allocation failure could cause nfsd_startup_generic to fail, in which case nfsd_users wouldn't be incorrectly left elevated. After nfsd restarts nfsd_startup_generic will then succeed without doing anything--the first consequence is likely nfs4_start_net finding a bad laundry_wq and crashing. Signed-off-by: Kinglong Mee Fixes: 4539f14981ce "nfsd: replace boolean nfsd_up flag by users counter" Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields

nfsd: add a new /proc/fs/nfsd/max_connections file

2014-07-08T21:14:32+00:00

Currently, the maximum number of connections that nfsd will allow is based on the number of threads spawned. While this is fine for a default, there really isn't a clear relationship between the two. The number of threads corresponds to the number of concurrent requests that we want to allow the server to process at any given time. The connection limit corresponds to the maximum number of clients that we want to allow the server to handle. These are two entirely different quantities. Break the dependency on increasing threads in order to allow for more connections, by adding a new per-net parameter that can be set to a non-zero value. The default is still to base it on the number of threads, so there should be no behavior change for anyone who doesn't use it. Cc: Trond Myklebust Signed-off-by: Jeff Layton Signed-off-by: J. Bruce Fields

NFSD: Using min/max/min_t/max_t for calculate

2014-06-23T15:31:36+00:00

Signed-off-by: Kinglong Mee Signed-off-by: J. Bruce Fields

nfsd: Only set PF_LESS_THROTTLE when really needed.

2014-05-22T19:59:19+00:00

PF_LESS_THROTTLE has a very specific use case: to avoid deadlocks and live-locks while writing to the page cache in a loop-back NFS mount situation. It therefore makes sense to *only* set PF_LESS_THROTTLE in this situation. We now know when a request came from the local-host so it could be a loop-back mount. We already know when we are handling write requests, and when we are doing anything else. So combine those two to allow nfsd to still be throttled (like any other process) in every situation except when it is known to be problematic. Signed-off-by: NeilBrown Signed-off-by: J. Bruce Fields

NFSD: fix compile warning without CONFIG_NFSD_V3

2014-01-06T17:23:31+00:00

Without CONFIG_NFSD_V3, compile will get warning as, fs/nfsd/nfssvc.c: In function 'nfsd_svc': >> fs/nfsd/nfssvc.c:246:60: warning: array subscript is above array bounds [-Warray-bounds] return (nfsd_versions[2] != NULL) || (nfsd_versions[3] != NULL); ^ Reported-by: kbuild test robot Signed-off-by: Kinglong Mee Signed-off-by: J. Bruce Fields

NFSD: Don't start lockd when only NFSv4 is running

2014-01-03T23:18:50+00:00

When starting without nfsv2 and nfsv3, nfsd does not need to start lockd (and certainly doesn't need to fail because lockd failed to register with the portmapper). Reported-by: Gareth Williams Reviewed-by: Chuck Lever Signed-off-by: Kinglong Mee Signed-off-by: J. Bruce Fields

nfsd4: fix minorversion support interface

2013-07-12T20:48:52+00:00

You can turn on or off support for minorversions using e.g. echo "-4.2" >/proc/fs/nfsd/versions However, the current implementation is a little wonky. For example, the above will turn off 4.2 support, but it will also turn *on* 4.1 support. This didn't matter as long as we only had 2 minorversions, which was true till very recently. And do a little cleanup here. Signed-off-by: J. Bruce Fields

nfsd4: support minorversion 1 by default

2013-07-08T23:48:10+00:00

We now have minimal minorversion 1 support; turn it on by default. This can still be turned off with "echo -4.1 >/proc/fs/nfsd/versions". Signed-off-by: J. Bruce Fields