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* nfs-utils: Allow turning off nfsv3 readdir_plusRajesh Ghanekar2014-08-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | One of our customer's application only needs file names, not file attributes. With directories having 10K+ inodes (assuming buffer cache has directory blocks cached having file names, but inode cache is limited and hence need eviction of older cached inodes), older inodes are evicted periodically. So if they keep on doing readdir(2) from NSF client on multiple directories, some directory's files are periodically removed from inode cache and hence new readdir(2) on same directory requires disk access to bring back inodes again to inode cache. As READDIRPLUS request fetches attributes also, doing getattr on each file on server, it causes unnecessary disk accesses. If READDIRPLUS on NFS client is returned with -ENOTSUPP, NFS client uses READDIR request which just gets the names of the files in a directory, not attributes, hence avoiding disk accesses on server. There's already a corresponding client-side mount option, but an export option reduces the need for configuration across multiple clients. This flag affects NFSv3 only. If it turns out it's needed for NFSv4 as well then we may have to figure out how to extend the behavior to NFSv4, but it's not currently obvious how to do that. Signed-off-by: Rajesh Ghanekar <rajesh_ghanekar@symantec.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* nfsd: support NFS4_MAXMINOR up to the number an unsigned int can keepSteve Dickson2014-02-131-1/+2
| | | | | | | | | | | | | | | | | | | This implementation allows specifying NFS4 minor version numbers up to the number of bits available in int data type (typically 32 on Linux) This is based on an idea mentioned by J. Bruce Fields <bfields@fieldses.org> mentioned on the linux-nfs mailing list. I changed the data type back from an array to two bit fields, one for storing whether the minor version was specified on the command line and the second one for storing whether it was set or unset. This change was done to prevent blowing up the allocated stack space in an unnecessary fashion. Acked-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Robert Schiele <rschiele@gmail.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* nfsd: fix minorversion-choosing interfaceJ. Bruce Fields2014-01-071-1/+0
| | | | | | | | | | | | | | | | | | | | From: "J. Bruce Fields" <bfields@redhat.com> By unconditionally adding ?4.2 to the version string written to the kernel we make nfs-utils incompatible with pre-4.2-supporting kernels. Ditto for 4.1. This problem was introduced by 12a590f8d556c00a9502eeebaa763d906222d521 "rpc.nfsd: Allow v4.2 server support with the -V option", which also change nfsd to unconditionally pass ?4.2. Instead, just don't mention 4.1 or 4.2 unless the commandline has specifically requested that one or the other be turned on or off. Tested-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Reported-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* rpc.nfsd: Allow v4.2 server support with the -V optionSteve Dickson2013-08-191-0/+4
| | | | Signed-off-by: Steve Dickson <steved@redhat.com>
* rpc.nfsd: No longer advertise NFS v2 support.Steve Dickson2013-08-191-0/+1
| | | | | | | | | Changed the default protocol versions that rpc.nfsd register with rpcbind to just 3 and 4. Version 2 can still be enabled with the '-V' flag, but it will not be on by default. Signed-off-by: Steve Dickson <steved@redhat.com>
* nfsd: Add support for the -V and --nfs-version optional argumentsTrond Myklebust2013-03-251-0/+1
| | | | | | | | | | Add command line options to enable those NFS versions that are currently disabled by default. We choose to use the options '-V' and '--nfs-version' for compatibility with rpc.mountd. Acked-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* rpcdebug: Add new "state" flag for the nfs moduleChuck Lever2012-06-191-0/+1
| | | | | | | | Kernel 3.5 adds a debugging flag for showing NFS client debugging messages having to do with NFSv4 state operations. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* rpcdebug: Add missing debug flagsSteve Dickson2011-10-201-0/+3
| | | | | | | | | | This patch added the following debug flags: fscache - enable FSCache debugging pnfs - enable general pNFS debugging pnfs_ld - enable pNFS layout debugging Signed-off-by: Steve Dickson <steved@redhat.com>
* nfsd: allow choosing server 41 support at runtimeJ. Bruce Fields2011-09-201-7/+0
| | | | | | | | | | | | | In the case where -N 4.1 is left off the commandline, the current code explicitly turns it on or off anyway, depending on configure options. Instead, just leave 4.1 support alone. This allows a user to add an "echo +4.1 >/proc/fs/nfsd/versions" to their init scripts, if they want. Otherwise they will get the kernel's default (currently to leave 4.1 off, as long as 4.1 support is experimental). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com>
* nfsd: Disble NFS 4.1 functionality by defaultSteve Dickson2010-02-171-0/+6
| | | | | | | | | | | | Due to the fact the current kernel code do not completely conform to the NFS 4.1 RFC, this patch disable the 4.1 support on the server. To control this 41 functionality, the NFS41_SUPPORTED configuration variable now exist that will allow us to re enable the functionality without any code changes. Signed-off-by: Steve Dickson <steved@redhat.com>
* exports: add new flag for NFSv4 pseudorootSteve Dickson2010-01-131-0/+1
| | | | Signed-off-by: Steve Dickson <steved@redhat.com>
* exports: let kernel decide which flags vary by flavorJ. Bruce Fields2010-01-131-1/+11
| | | | | | | | | Query the kernel to ask which flavors vary by pseudoflavor, and use that instead of a fixed constant. To allow the possibility of more flags varying by pseudoflavor, use the set/clear_flags functions for all options instead of setting some by hand. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfs-utils: clean up NFSCTL_* macros for handling protocol bitsJeff Layton2009-08-011-4/+11
| | | | | | | | | | They are a little hard to follow currently. Clean them up and add new macros that can set these bits in addition to the ones that unset them. Also add a new macro that reports when any valid protocol bit is set. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* utils/nfsd: add support for minorvers4Benny Halevy2009-05-041-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | minorvers4 can be used to either enable or disable nfsv4.x. If minorvers4 is a positive integer n, in the allowed range (only minorversion 1 is supported for now), the string "+4.n" is appended to the versions string written onto /proc/fs/nfsd/versions. Correspondingly, if minorver4 is a negative integer -n, the string "-4.n" is written. With the default value, minorvers4==0, the minor version setting is not changed. Note that unlike the protocol versions 2, 3, or 4. The minor version setting controls the *maximum* minor version nfsd supports. Particular minor version cannot be controlled on their own. With only minor version 1 supported at the moment the difference doesn't matter, but for future minor versions greater than 1, enabling minor version X will enable support for all minor versions 1 through X. Disabling minor version X will disable support for minor versions X and up, enabling 1 through X-1. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Steve Dickson <steved@redhat.com>
* rpcdebug: Update 'rpcdebug' tool with recently added debugging flagsChuck Lever2007-07-201-1/+3
| | | | | Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Neil Brown <neilb@suse.de>
* Remove rpc.lockdNeil Brown2007-02-221-4/+0
| | | | | | This was only needed for kernels 2.2.14 through 2.2.17. These have long since been superceded, so remove some dead weight.
* Update rpcdebug to know about new 2.6 debug flags. AddedGreg Banks2006-07-051-0/+4
| | | | a manpage and installed rpcdebug (in sbindir).
* Allow rpc.nfsd to suppress tcp or udp, and listen on a specific address.Steve Dickson2006-07-031-0/+4
| | | | | | | | | | -T - will suppressing listening for TCP connection. -U - will suppress UDP -H host - will only listen on that local address -p port - will listen on that port. This requires kernel patches which will hopefully be in 2.6.19 and possibly some earlier test and vendor kernels.
* Add support for suppressing different NFS versions.Steve Dickson2006-06-261-0/+7
| | | | | | e.g. -N 2 means that NFSv2 won't be supported, just v3 and v4 (if the kernel supports them).
* Remove **/Makefile.in, aclocal.m4, configure, andNeil Brown2006-04-171-409/+0
| | | | | | support/include/config.h.in from source control These are auto autogenerated by aclocal -I aclocal ; autoheader ; automake ; autoconf
* 2006-04-10 "Kevin Coffman" <kwc@citi.umich.edu>neilbrown2006-04-101-0/+2
| | | | | Check for sufficient version of librpcsecgss and libgssapi in configure.in
* 2006-04-10 "Kevin Coffman" <kwc@citi.umich.edu>neilbrown2006-04-101-0/+2
| | | | | Update aclocal/tcp-wrappers.m4 to define HAVE_LIBWRAP and HAVE_TCP_WRAPPERS as appropriate.
* aclocal/autoconf/automake, properly this time.neilbrown2006-03-281-0/+4
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* More automake stuffneilbrown2005-12-201-0/+401
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* Autogen updateneilbrown2005-12-201-0/+5
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* Change CROSSMNT to CROSSMOUNTneilbrown2003-08-061-4/+2
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* Assorted fixesneilbrown2003-07-141-1/+2
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* allow compilation against 2.5 headersneilbrown2003-07-031-2/+13
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* Make CROSSMNT distinct from NOHIDEneilbrown2003-05-211-2/+3
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* *** empty log message ***neilbrown2002-02-281-1/+2
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* Change to using variable length file handles, for better v3 support, andneilbrown2000-03-211-30/+19
| | | | | introduce getfh_size to use new (2.3.99) syscall for getting file handles with length
* Support for NFSEXP_NOAUTHNLM introduced in 2.3.42neilbrown2000-02-041-2/+2
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* Thu Oct 28 11:27:51 EST 1999 Neil Brown <neilb@cse.unsw.edu.au>neilbrown1999-10-281-2/+4
| | | | | | | | | | * support/include/nfs/export.h addedd NFSEXP_NOSUBTREECHECK * support/nfs/exports.c: added {no_,}subtree_check and changed crossmnt to nohide * utils/exportfs/exports.man: added no_subtree_check and nohide and removed irrelevant stuff from unfsd. * support/export/rmtab.c: rmtab_read didn't quite do the right thing if a pathname from rmtab was a subdirectory of an export-point
* Initial revisionhjl1999-10-183-0/+246
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