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Merged robust security code into Orange-Branch.

Fixing scandir and dlfcn issues for SL

OK trying to get this scandir thing right.  This should do it.

fixed scandir def to compile with both new and old versions
added step in iocommon_readorwrite to generate PVFS_Request

still not quite right ...

added configure items for acl includes

initial working versionof usrint code
auto configures usrint on an ucache off (not working yet)
new acl repimplemented - old one has #def
some minor format edits

added support for usrint and usrint-cache to build system

configure change to support 3.X kernel series

merge with Orange-Branch

small build change for libuuid and printing of temp change for handle printing in pvfs2-db-display

uuid converstation, PVFS_x_position changes, server/client side first pass done

changes to PVFS_handle_X

merge with Orange-Branch

Provide warning during configure if version of berkeley db is not at least 4.8.30

enforce checks for binaries required in the PATH in configure

update version string in branch, update changelog

version string refactoring

Changes for release

release changes

don't error out on lack of utsrelease.h file, just error out if we can't find UTS_RELEASE

merge with Orange-Branch

update configure.in for new utsrelease.h location in include/generated/ and bump version in branch to 2.8.3

Modified configure.in for release 2.8.3, updated pvfs2-config.h.in, and reran
prepare to generage configure.

Modified configure.in with PVFS2_VERSION_SUB=3 and added PVFS2_VERSION_RELEASE
to pvfs2-config.h.in and then regenerated configure

JNI patch applied.

orangefs experimental 20101012 release (distributed directories)

Merged in changes from Orange-Branch. There were a number of bugs fixed there since this branch was created.

merge with Orange-Branch

orangefs 20100920 release

change configure back to non-release

release 20100920

merge with Orange-Branch

update version string in Orange-Branch

merging Orange Branch changes in

initial merge with Orange-Branch. much will be broken

kmod builds for 2.6.33 are busted but this will at least get configure running
again

added stubbed security functions so security can be disabled

removed old enable/disable security options

revert cu-security-branch to before the attempted merge with Orange-Branch

Addition of src/apps/devel directory and pvfs2-display-db to give a dump of berkeley dbs in text form to assist in development/debugging. Also made configure and make changes with new build target develtools

merge of B2O-Blue-Sync,HEAD,and latest of Orange.

commiting changes from merge of Orange and Blue into test branch.

testing cvs....

Added a conditional compilation check for enabling/disabling CUDA, --with-cuda=<dir>
Modified the kmeans.sm to make it compile depending on --with-cuda option.

add 2.8.2 changes to ChangeLog.  Update configure for 2.8.2 version.

The remaining pieces of BMI ZOID support.

merge from HEAD: http://www.pvfs.org/fisheye/changelog/PVFS/?cs=MAIN:pcarns:20090721184004

Updated configure.in and configure to recognize src/apps/user/module.mk.in

Added 'src/apps/user/module.mk' to the AC_OUTPUT definition.

Merged NWU's CUDA code.
Modified configure script and Makefile to enable CUDA compilation.

merged in changes from latest Orange-Branch

merged in changes from summer at LANL

patch from Bart Taylor; moves permission checking code back to common
directory in order to add safety checks for truncate operation permission

initial support for solaris.  doesn't include /dev/epoll support.  See trac ticket #97.

version set for pending 2.8.1 release.

merge changes from 2.8 branch to HEAD.

tagged release point, update version.

set version for release.

merging BUILD_KERNEL updates and sys-io.sm logging updates to 2-8 branch

updates to BUILD_KERNEL flag: move to positive section of --with-kernel
test in configure.in, add to --with-kernel24 test, and add Makefile.in
flag to pick up at AC_SUBST time.

trac ticket #67.

merge of Sumit's pvfs2fuse code to HEAD.

disable events by default

srcdir only gets output by configure (only available to files it generates).

fixup the compat header to be sensible.  Also bump the minor version in lieu of a pending release.

applied bmidist patch from Dries.  Also added a number of cleanups of my own.

Make pvfs2.h include the version numbers to be exported.  This allows consumers of the sysint calls to determine which parameters to include.

merging hints/events code into trunk.

bmi changes to allow separate bmi packaging

reverse merge of direct IO changes to he-branch.

add tau formatting code from Aroon.

merge of direct IO code to PVFS HEAD.

adding threaded odirect impl

Added configure flag "--disable-security"
Removed configure flag "--enable-security=[none]"

Reverse merged and ported to HEAD.

Configure fails if pkg-config is not found or FUSE libraries are missing.

Removed bug. Would enable FUSE without --enable-fuse option.

Added support for pvfs2fuse. If pvfs2fuse was configured correctly, it would appear in the PVFS2 configuration information table.

reverse merge of trunk changes since branch.

reverse merge latest trunk changes to small-file-branch and update msgpair
usage where needed

Merge from HEAD.  Fleshed out credential.  Encode/decode added for credential and cleaned up for capability.  Added capability/credential into request/response structures.  Fleshed out comments in security module.

marked the following configure options as experimental:
--enable-mmap-racache
--enable-trusted-connections
--enable-kernel-sendfile
--enable-threaded-kmod-helper
--disable-aio-threaded-callbacks

Added --enable-security=[none, rsa, dsa] into configure.in to enable toggling of security features for export/import.

reverse merge of latest changes from HEAD to he branch.

Updated branch with code from HEAD

updated build system for security module

Remove deprecated --disable-disk-io option to configure; this hasn't
actually been supported in the code in a long time.  There is now a
runtime selectable trove method (null-aio) to accomplish the same thing.

in preparazione per 2.7.1.

syncing small-file-branch back up with trunk at small-file-branch-point2 tag
(reverse merge)

merge a bunch of fixes made to HEAD since 2.7.0.

library versioning

This patch adds a version code to the installed shared libraries,
libpvfs2.so and possibly libpvfs2-threaded.so.  Library versioning
is considered a good thing, in that apps can know what version of the
library they need.  Use the actual PVFS version numbers to build
the library version string.  This is not always the right thing to do,
but works for us because we pay attention to the meaning of "major",
"minor" and "release" changes.  Adapted from a patch by Justin Bronder.

build: disable static server fix

The configure option --disable-static-server was not doing the
right thing.  Patch by Justin Bronder.

threaded kmod helper

Add --enable-threaded-kmod-helper option to build a threaded
pvfs2-client-core, that is, an executable linked against
pvfs2-threaded.so.  Take care to make sure only what libraries
are needed based on --enable-static, --enable-shared, and this
new option.

Remove the "--threaded" argument from pvfs2-client.  Whatever version
of client-core that was configured is all that is available at runtime.
It will always be installed as pvfs2-client-core.

Sam's prelude and scheduler updates

gm-mx-autoconf

Convert GM and MX to use autoconf tests to find includes and libs.  Move
these tests into new config files to keep the top-level Makefile clean.
This fixes a configuration problem with GM on x86_64 where libs are
in lib64/, and generalizes both GM and MX to be a bit more clever at
autodetection.

Signed-off-by: Pete Wyckoff <pw@osc.edu>
---
 Makefile.in                    |   32 +++-----
 configure                      |  167 ++++++++++++++++++++++++++++++++--------
 configure.in                   |   49 ++----------
 maint/config/gm.m4             |   72 +++++++++++++++++
 maint/config/mx.m4             |   73 +++++++++++++++++
 src/apps/admin/pvfs2-config.in |    8 +-
 src/io/bmi/bmi_gm/module.mk.in |   45 ++++++++----
 src/io/bmi/bmi_mx/module.mk.in |   40 +++++++---
 8 files changed, 363 insertions(+), 123 deletions(-)
 create mode 100644 maint/config/gm.m4
 create mode 100644 maint/config/mx.m4

fixes for segv backtrace checking.

fix borked configure tests for aiocb return and error_code fields.

make segv-backtrace enabled by default

get the versioning right for MAIN.

preparing for 2.7.0.

Warn people about the current polling situation in multi-BMI-device setups.
Users keep discovering this, and until we implement a separate thread per
device in BMI, PVFS will always perform poorly on both devices.

use perl's Math::BigInt module instead of assuming perl has 64bit int support.  Check for BigInt in configure.

Move a big chunk of configure out to a separate M4 include:  --with-ib.

Hide PVFS2_SEGV_BACKTRACE option down in server code where it applies.
Fix little gossip module.mk.in thinko.

Always define gossip_backtrace(), just as a noop if it cannot be built.  This
simplifies some ifdef nests in a few spots.  No behavior change.

Keep bmi-tcp epoll issue out of global cflags.

Move gcc options for --enable-strict from configure to Makefile, so they
are near the other build flags and so non-GCC compilers can be handled
differently.  Also redefine --enable-strict to apply only warning options,
not to turn on -g too.  And the option works with CFLAGS= override on the
command line too, unlike --enable-fast.  Finally, set default CFLAGS to
"-g -O2", adding the -g in hopes we will get better tracebacks on errors.
This will increase code size somewhat.  Builds that use --enable-fast or
custom CFLAGS are not affected.

Fix typo.

Machines without ioctl will complain on the uses of _IOR and so forth,
as well as ioctl, poll calls.  The code to implement getting requests
through a character device runs through about 12 files in the source
tree.  Rather than hacking out all the linux-kmod-related bits, selectively
disable just the main commands but leave it all harmlessly compiled in.
A new configure variable tells if a linux kernel module was requested.

Do not test kernel features if no kmod requested.  Fix chmod line.

Propagate separate build cflags and ldflags through configure.

Make BMI TCP optional, but configure it on by default for old times sake.

Initial addition of portals BMI method.

mx fixes

Terminate epoll test with yes/no.  Check for crazy configure option of no shared libs and no static libs.

Merge HEAD changes to TAS-branch.

update to Changelog and increased major version in anticipation of _major_ changes :-)

fixes to build on darwin

walt3 reverse merge from head includes merges of pw's sm changes (no state declarations), cleanup of state machine code, and other general merging/fixes.

Upgrade to current CVS version..

updates to changelog, up-ed version to 2.6.3, regenerated configure.

merge 2.6: fix f[sg]etxattr checks

get the f[gs]etxattr checks right so that older platforms build (sles8)

Update migration branch to current CVS version

Sync hint-branch to current CVS version

Initial commit of BMI MX implementation provided by Scott and Myricom.  Thanks Scott!

merge 2.6 branch changes to head

merge a bunch of minor fixes pete made to head recently.  See the changelogs from Dec 15th to Jan 15th for more info (esp. Dec 19th).  Also updating the changelog and minor release version number for impending release (2.6.2).

Synchronization with HEAD

add --with-valgrind debugging option to compile-in helpful annotations for valgrind users; fix up some alignment and CPPFLAGS usage issues

set version for 2.6.1

Upgrade to current CVS version

merge latest changes in 2.6 to head.

update version

release version

Trove TAS modul added.

reverse merge of HEAD to WALT3 branch.

[phil]: added ACCESS_DEBUG option to print hostnames instead of IP addresses in debug output.
[slang]: fix to previous commit of debug statement in remove.sm

merge from 2.6 branch

changed version to 2.6.0.pre...  Also changed tarball and dir names for packages to pvfs-...

bugfix: adding pthread library for mpe

backmerging of HEAD to branch...

Merge HEAD into Walt's branch.
Rework new state machines to the new cleanups introduced by Walt.

updates to openssl checking.

Added a configure option --disable-openssl like Pete suggested both for toplevel
and test/configure that will prevent us from checking for the openssl libs/headers
even if they exist in the default paths..
Also fixed posix/sha1.c test program from doing any crypto stuff if configure says so.

Merge posix-extensions-branch to HEAD
This branch implemented patches to the 2.6.16 kernel for the proposed POSIX I/O extensions and those patches are under
the patches subdirectory.
It also implements the PVFS2 specific hooks for these system calls.

Tools that may be of immediate use to the pvfs2 general audience is the pvfs2-lsplus utility in src/apps/admin
that should be noticeably faster than the pvfs2-ls utility if there are a lot of objects in a single directory.
Other features are left out by configure and are not even built if the kernels do not support those features
and callbacks.

openssl checks performed even when --with-openssl is not specified.
Associated configure time changes.
Fix test builds when mpich2 paths are not specified.

Merge from HEAD to posix-extensions-branch...
This should facilitate merging the posix branch to HEAD...

Added crypto digests utility functions and configure time checks for openssl libs and includes
so that pvfs2-ping utility can now optionally check whether fs.conf files are the same on
all servers..
i.e. pvfs2-ping -m /pvfs -c will now print whether fs.conf integrity checks fail or pass.
Some of the infrastructure used here will be useful for doing SIGHUP handling at the server
so that fs.conf or server.conf files may be refetched etc..

Alternative Trove implementation branch with Trove transaction support for db >= 4.3.

change pre version back after tagging

change bgl version

Reverse merges from HEAD..

configure check for an openib API change

Backmerge with HEAD

Added PVFS-hint, changed tests for pwrite/odirect/transactions/aio dbpf
 support to allow users to explicitly enable or disable the functionality.
In the aio implementation is a bug since somebody else modified it.

Reverse merge changes from HEAD to posix-extensions-branch.

remove refs to ready queue

Change default to aio, bugfix aio, I broke it for non-threaded, change
names to use underscores...

a first stab at 2.6.18 compatiblity.  not sufficient yet, but gets configure
detecting enough

Changed bzero to memset in trove, added O_DIRECT and PWRITE tests for
autoconf. (O_DIR test is not used in trove right now).

configure option --enable-aio determines if aio or dbpf-threaded (new)
is used... dbpf-bstream-threaded.c contains threaded I/O version.
This file need some revision... It will be used for testing O_DIRECT.

Checkin of previous patches

merge of fixes for db->set_errcall from 1.5 branch.  Also incremented the release version.

upgrade minor version

merge of murali's changes from trunk.

make sure CFLAGS gets set for --enable-epoll usage

reverse merge of recent bug fixes from trunk

didn't mean to commit the version change yet.

changes to migrate-collection so that args to util are now fs.conf and server.conf-hostname with either --all or --fs="fsname".
changes to dbpf_collection_initialize to check the version of the collection first before trying to open the other databases (keyval especially).

Reverse merge from trunk to lockd-branch...

reverse merge of branch

bring changes into 1.5 release branch

get the checking right for epoll (if its not supported don't throw an error just use poll)

turn on epoll by default (but do a check to make sure its there).  Add --[en/dis]able-epoll options to prevent the check.

* added an enabled macro for gossip
* fix for hindexed types.  conversion to aiocb structs were breaking without this fix.

reverse merge of trunk to branch

build support for openib

reverting patchset 5116 (make epoll the default) because the configure test
passes ernoneously on linux-2.4

let's make epoll the default where available

finally give up on autoconf-2.13 support.

[pcarns]: there are concievably cases where memory usage confuses users.  Karma
normally reports all memory in use, including that for the cache.  Use this option if you think users might be confused by that.

Includes reverse merges from trunk
in addition, it includes fixes for readdir and readdirplus to have a variable length
number of directory entries passed in from client-core using a trailer page (currently).
However, there is nothing that prevents us from sharing those pages with the kernel using vmap
and friends which is the next logical step.
So client-core now does a readdir/readdirplus and writev's the trailer page (which is essentially
an encoded version of the readdir/readdirplus response) to the kmod.
The kernel module decodes that and copies it to the user-space app (which issued the getdents/getdents_plus
system call)
Added/edited the getdents.c test program in the test/posix sub directory to issue
getdents/getdents64/getdents_plus/getdents64_plus system calls
Also fixed a critical bug that was somehow never triggered in readdir if the buffer size
provided by glibc/user was not sufficient enough and we advance the f_pos token beyond where we stopped.

do not always define _GNU_SOURCE if strnlen prototype is found

add explicit test for strerror_r; _GNU_SOURCE was not determining the proper version correctly

Added a few more missing files and fixes from HEAD to lockd-branch.
lockd-branch should build cleanly now.

commit of versioning stuff to branch

PVFS2 specific hooks for implementing openg and openfh.
This includes callbacks for
a) fill_handle as part of the inode operations structure.
b) find_inode_handle as part of the super operations
c) get_fs_key as part of the super operations
and statfs_lite() also as part of the super_operations structure.
Credit to Sam for implementing a secure key per fsid that is used for the crypto
verifications of the handle buffer.

Timing information is also added so that every time critical operation
is logged for openfh/openg.

Patch disables sendfile system call support by default from PVFS2 since it has negative fallouts
on NFSD performance.
However, this also means Apache would not work off PVFS2 unless an EnableSendfile option
is turned off for Apache.
However users are still given a configure time option to --enable-kernel-sendfile
if they don't plan on re-exporting PVFS2 through NFS.
Updated FAQ to reflect this change.

onekeyval merge

if we are falling back to our built-in fgetxattr then skip the test for extra
fgetxattr arguments

reverse merge from trunk.  see if sio tests pass now as well.

fixes for darwin with latest AIO_THREADED support turned on.  Use union sigval instead of sigval_t.  Check for extra args to fgetxattr.

take a BIG RED HAMMER to the "test for working aio callbacks" code.  We weren't
testing for working aio callbacks.  we were testing for known-good versions of
glibc.  The approach was unable to handle glibc-2.4 and Darwin's glibc.  Even
Debian Stable ships with a new-enough glibc that aio callbacks work.
--disable-aio-callbacks is there for the poor folks on ancient systems.

Feel free to commit a better approach.

shovel all the kernel featuers (almost 8k worth of text!) into a separate
function.

2.6.16 (and the FC5 2.6.15-1.2054_FC5 kernel) no longer provide update_atime.
Use touch_atime, which appears to be in all 2.6 kernels.  Add a configure-time
test so we can fall back to the older update_atime method.

look in /lib64 and elsewhere for libc too

test for fgetxattr prototype. turns out it could be in <sys/xattr.h> on some
older systems.

fix compile error and merge from trunk

from HEAD: (minus typo) deal with really old systems that might not have
            fgetxattr(2)

fgetxattr doesn't exist on some really old systems.  Since those old systems
won't have xattributes anyway,  let pvfs2-viewdist fail gracefully

bump the version number

merging with pvfs2-1.4.0 branch now that it's released

1.4.0 release is imminent!

ib: separate config options for includes and libraries, optionally

guh! -Wdeclaration-after-statement is only available in gcc-4.0

even though declaration-after-statement is valid C99, it causes problems when
the inevitable gcc-2.95 user tries to build pvfs2

merging phil's patches into 1-4-0-branch

commit of phil's dirent remove patches.  See:
http://www.beowulf-underground.org/pipermail/pvfs2-developers/2006-January/001778.html.

*** empty log message ***

bumping version number

added --enable-static-server to config

merging changes from HEAD to dbpf branch

work around some kernel api changes

add configure check to detect read_descriptor_t changes

add config test for HAVE_PROC_HANDLER_SIX_ARG missed from previous patch merge.  Add enabled declaration missed in acache.c as well.

modify the doxygen config to setup the version info at config time.

Some systems (Debian, Ubuntu) don't have the attr/xattr.h header file, causing
a build failure.  On these systems, the fgetxattr symbol is in libc.  Murali,
if there's a better way to fix this, feel free

Added a sendfile callback to the pvfs2 file_operations structure so that Apache
can work off PVFS2 volumes.
This callback does not make use of the page-cache to avoid any of the associated
consistency problems.

merging in 1.3.2 changes from branch

three questions in 24 hours... let's just have a new release and be done with it

we need a way to disable kernel aio on some broken kernels (SLES 9)

bump version (belatedly) after branching

fixes to small io stuff to get test-zero-fill working again.  Also committing updates from HEAD to make things easier for merge.

fix to not set NEEDS_LIBRT when --disable-server is present

fix --disable-server bug introduced with NEEDS_LIBRT

get the version string correct on the branch

make changes to 1.3.1 as well

fix LP64 issue with Lu/Ld/Lx that I borked with the darwin patch.

bump things for future development

just about to tag release

* malloc.h is obsolete in freebsd, check for it
* No error.h in freebsd
* linux allows Lu,Lx, and Ld to be interchangeable with llu,llx, and
lld.  Other platforms (solaris, bsd) don't.  Replaced all the L*
with ll*.
* bsd doesn't have mntent.h.  use fstab.h and our own funcs.
* bsd doesn't know about ssize_t.  Use size_t instead.
* bsd doesn't have asm errnos.  Check for each of those
errno macros and if not defined define to -1
* check for db3/db.h db4/db.h header if db path is specified using
--with-db
* darwin has aio support builtin, doesn't need -lrt
* remove kernel stuff in pvfs2-types.h that sets WORDSIZE.  gcc
defines __LP64__ on archs with 64bit longs so we use that instead.
* darwin's open doesn't accept O_LARGEFILE.  off_t is an int64 by
default.  define O_LARGEFILE if it hasn't been.
* need to run ranlib on darwin after libpvfs2.a gets installed to regenerate
table of contents

moved berkeley db checking from configure.in to maint/config/bdb.m4 and included the check in both configure.in and test/configure.in.  Also modified prepare to look for .m4 files in maint/config.  Need to regen the configure scripts, will do that in a sec.

make this test not always fail

Attached patches implements trusted ports and networks similar to
what PVFS1 implemented.
It adds a new <Security> </Security> tag to the fs.conf config file
and parse utilities accordingly. We can edit these later if there
is a strong need.

Within these tags, you have to specify TrustedPorts <Range of ports> and
TrustedNetwork tcp://<network> tcp://<mask>.
I dont know how to support this cleanly on  non tcp/ip bmi
architectures, so currently this only enables it for the bmi_tcp module
alone. (i guess we could do it for bmi_ib module as well but not done
until someone says that is the right thing to do...)

Also adds support for a --trusted argument to the pvfs2-genconfig script
that will prompt for the trusted port ranges and the network address/masks and write it out
to the fs.conf and server.conf file.

Configure now supports a --enable-trusted to enable all these features.
(NOTE that the fs.conf tags (or lack of one) still allow you to not
select these features even if configure was asked to compile with this
option).

this patch also cleans up all the warnings that arises with gcc
(3.4) and --enable-strict build mode.

Added configure options to feature detect aio support in the kernel headers
We dont enable aio for 2.4 kernels and for 2.6 kernels we disable aio support
for early 2.6.x kernels (where x < 8, I think)
	The configure test checks whether the kiocb structure provides a ki_dtor()
	method to cleanup operations such as aio_cancel and for freeing allocated
	memory. We use this method to determine whether to disable or enable.
Hopefully, this should get us to build on older 2.6 kernels..

bump version for further devel

- list our changes
- bump version number

bump the version number

[pcarns]: configure time test for prototype of setxattr: sometimes it has a
const argument, sometimes it doesn't.

needed to redo the include logic for kernel feature tests a bit.  When testing
for certain linux kernel headers, jump through hoops to avoid bringing in
system headers (e.g. xattr_acl.h can be both a kernel header and in
/usr/include/linux)

[pcarns]: reverse name lookup patch.  --enable-rev-hostname if you want
hostnames instead of ip addresses

*sigh* ... linux/xattr_acl.h was removed in 2.6.13, so now we have to
AC_CHECK_HEADERS it

added murali's xattr patches.

updates to my event changes to bring them inline with trunk

feature-test for extended attributes. thanks murali

more work to get feature testing working on more platforms

merge changes from trunk since branch point into branch.  Effectively moves the branchpoint to the latest trunk.

[pcarns]: add a new bmi method that can resolve connections from unexpected
requests into hostnames

bump for more development

arbitrarily pick 1.2.0 for version number.. i *think* the wire protocol is the
same, but bump minor to reflect significant development

Added link check for valid mpe libs

make sure we pass location of db headers if user specifies berkely db location

fix AC_TRY_COMPILE failures that check args for db->stat so that warnings cause failure.  --enable-strict should work now.  (no, really)

make --enable-strict actually work..silly AC_TRY_COMPILE adds main() without correct parameters so -Werror -Wstrict-prototypes makes that macro fail.

* moved install location for test binaries to $prefix/test.

* handle CFLAGS differently in configure:

	- don't let AC_PROG_CC set CFLAGS=-g -O2 by default
        - enable-strict doesn't include -O2 in CFLAGS
	- respect user set CFLAGS

needed to tweak include paths slightly so we'd correctly detect
'.memory_backed' in 2.6.11 kernels.

remove old automake setting, check for a certain kernel structure

Add missing line so that checking for lib db happens differently when
--with-db is set.

Fixing configure so that when with-db is set, we try to actually link
against that version of db in configure tests.

Change configure test for db stat function so that test for malloc
function ptr and txnid are tested in order.

bump things for the next revision

pvfs2-1.1.0 is *sooooo* close to being out

Modifying db txnid and unknown_param tests so that they function correctly
for older versions of DB (3.2.9).

Modified configure.in to test for epoll functionality when it is requested.
This is prep for always checking for epoll.

avoid colons in version to make kernel compile happy

some kernels (suse) have minor versions like 21.SuSE_273.bef1, which the
preprocessor doesn't like ( "floating point numbers are not valid in #if").
Take measures to strip out the minor minor versions, since only the "21" is
sufficient for our needs.

define i_size_read, i_size_write, and parent_ino if we fail a feature test.
some 2.4 kernels (suse 8) backport these routines from 2.6

can build modules w/o having to write to kernel tree. yay!

take the @ out of the date string.  It confuses at least one kernel module
environment (Suse Enterprise Linux on bluegene)

phil's patch to separate NPTL workaround from 2.4-with-2.6-backports workaround

Added workaround for missing gethostbyname.

Added test for gethostbyname.

Removed use of getprotobyname(); I don't think anyone cares, and it will fix
things on scyld, and eliminates an issue on BG/L.  Also test for netdb.

we have to build statecomp with the host compiler, not the cross compiler

Disabling Berkeley DB checks when we don't need it.

More work to make building of just server possible.  There is a hack here
in that we still build server/request-scheduler stuff, which needs to be
moved out of src/server.

More little tweaks to the configure/make process to help with BG/L builds.

slight change in approach: warn the user we need an extra configure option if
running on one of the redhat distributions we know about.   however, no matter
what distribution we are running on, if the user passes in "--enable-redhat24",
we'll do the redhat workarounds.

fix logic for --enable-redhat24

merging in bugfix-39 branch

best fix for bugzilla #39: user intervention required if building on one of the
redhat distributions that ships a heavily modified 2.4 kernel. if you are
building kernel.org kernels, you can disable the redhat workaround

Additional test to see if third parameter to DB error callback is const.
We expect that it is, but it isn't strictly related to the previous test.

Added detection and fix for new dbenv parameter to DB error callbacks (4.3.xx).

Patch to fix testing for txnid parameter to DB stat operation.

- build: remove duplicate commands used for QUIET_COMPILE
- build: fix test configure library detection

- modified configure test to check for FC1.  user reported FC1 is like
  redhat 9 and uses a 2.4.x kernel (FC2+ use 2.6.x)

- version bump; ready for new dev

- changelog update
- version bump; ready for tagging

- added an RHEL ES check as well
- added some faq entries regarding redhat

- also check for RHEL AS releases

- added more configure tests for redhat release kernels that resemble
  redhat 9 kernels

- ib: add configure-time checks for mosal library variations
- ib: flush send queue work requests periodically
- ib: search receive queue for both eager and rts (D. Beilloin)

- version bump; ready for new dev
- sys-io cleanups

- remove pvfs2-1-0-0 tag; changelog/configure version downgrade
- never allow zero-fill size to be -1; remove assert since it possibly
  can be though

- version bump; ready for new dev

- changelog update
- version bump; final commit before tagging

- fix bad redhat release check

- added a configure test looking specifically for a redhat 9 release,
  as many things have to be changed on that platform:
  - use some 2.6.x kernel code on redhat 9 2.4.x kernels, if detected
  (this means we no longer have to use the externally referenced
  redhat patch)
  - do not mark pages as reserved on redhat 9 2.4.x kernels, as the
  kernel will oops eventually due to the different virtual memory
  manager
  - since redhat 9 has an incompatible NPTL implementation (and the
  server mysteriously crashes on it), install a wrapper script in
  place of the pvfs2-server that exports the LD_ASSUME_KERNEL
  environment variable before running the server
  - addition of above mentioned src/server/pvfs2-server-stub
  - in redhat 9 only cases, install pvfs2-server-stub as pvfs2-server
  and install pvfs2-server as pvfs2-server.bin
  - make sure that make kmod{24}_install works properly even if there
  are multiple UTS_RELEASE definitions in the version.h file (as there
  are in redhat 9).  fallback to using uname -r for kernel
  installation path in /lib/modules if that's the case

NOTE: at this time, we should be able to work properly on redhat 9
installations "out of the box".  in my testing, this is the case.
VS: ----------------------------------------------------------------------

- disable mmap readahead cache by default; allow configure option to
  optionally enable it

- version bump; ready for new dev

- Changelog update
- version bump; ready for tagging
- fixed a typo in the multi-fs-doc

- version bump; ready for new dev

- changelog updates
- version updates; ready for 0.8.0 release tag

- version bump; ready for new dev

- credits, changelog and configure updates; ready for tagging 0.7.0

update top level build to skip generating the .libs file that was
previously used to relay library information (in particular, which db lib
to use) to the test subdir build

break db libraries into a seperate variable from LIBS, to make sure that it
only gets used on server side

fix typo

- configure: add option to disable AIO threaded callbacks
- configure: fix GM and IB to enable only when explicitly requested

- version bump; ready for new dev

- changelog updates; version bump -- ready for tagging

- moved version down from 0.7.0preX to 0.6.5preX
- added sanity check to kernel's device poll; makes sure the device is
  opened by only one user before returning valid results
- make the device's request list waitqueue non-exclusive, since poll
  waits as well
- some formatting changes on kernel error reporting
- added mmap-ra-cache support for partial cache fills on incomplete
  requests
- added an argument to the mmap-ra-cache code that tells how much was
  filled on cache hits
- added a threshold to pvfs2-client-core that avoids doing readahead
  calls for sizes smaller than ~75KB, as it seems to make little
  difference in performance, but may cause trouble
- changed kernel readahead pages to be 1024
- enable kernel readahead hints on mmap/execution (i.e. sequential)
- initialize kernel module's request_list_waitq at declaration time
- misc cleanups

- version bump; ready for new dev

- version bump; ready for tagging

- changelog update
- configure version change in prep for release

initial cut of pvfs2-config, mostly stolen from sdl-config

- version bump; ready for new dev

- changelog update
- version bump; ready for tagging

- added an optional socket management component that uses epoll() instead of
  poll() for its work cycle (epoll is a linux 2.6 specific alternative to
  poll that should result in much lower latency and better scalability)
- added a --enable-epoll configure option to enable it
- fixed a bug in configure.in; AC_PROG_CC was being called too late, which
  made it possible for several earlier tests to (if triggered) accidentally
  discard the default CFLAGS that we would normally expect
- epoll implementation needs more testing (both for correctness and
  performance)

- version bump; ready for new dev

- version bump and changelog updates; about to tag

- add the build date/time to the preX version -- i need a finer grained
  version string for determining CVS snapshot differences -- won't affect
  official build versions
- misc formatting changes

- version bump; ready for new dev

- misc cleanups, formatting, and debugging adding
- final version bump and changelog update before cvs tagging

- configure update to use quotes on tests; some formatting changes
- changelog update in prep for the 0.6.1 release
- updated credits file

- version bump; ready for new dev

- ChangeLog reformatting to break up long lines
- version bump to 0.6.0, preparing for tagging
- update credits file

- warning removal

- merging in the pvfs2-nm-nb-branch with the main tree
  see ChangeLog for details, or browse the cvs history of the branch
  for full details

NOTE THAT THIS IS A BRANCH COMMIT (tagged as nm-nb-branch).  Feel free
to ignore it completey as it's a snapshot of a work in progress and it
will crash your computer and reformat your hard drive.

This is almost the initial draft of the pvfs2-client-core that
operates in a non-blocking manner.  While it runs, there are still
issues that need to be resolved (that are keeping it out of the main
CVS trunk).  Many other changes were made along the way, so it's more
than just that.

- added compile time option for disabling thread-safety in the client
  library (enabled by default; --disable-thread-safety to disable)
- improved configure summary information emitted at configure time
- added missing non-blocking sysint declarations to sysint header
- re-wrote pvfs2-client-core to use sysint non-blocking operations
  where possible
- made sysint test and testsome() calls more useable from a user point
  of view
- merged dev unexp polling/handling with system interface
- added PINT_sys_dev_unexp call that allows posting unexpected device
  messages so that they can be returned from the sysint testsome
  method in addition to completed sysint operations
- many memory leaks fixed -- many more to go (started adding macros
  for freeing the server response objects)
- added a id_gen_fast_unregister macro that is a no op, to make the
  api more consistent with the id_gen_safe_* calls
- server-config-mgr: report mutex still in use if it is, but also make
  sure not to unlock an already unlocked mutex (valgrind complains)
- many assertions added
- many formatting changes
- many ptr assignments to NULL after freeing in the job interface;
  done while tracking down a problem
- modified the pint-dev device interface to make sure it can handle
  the pvfs2 device in a non-blocking manner
- pint-dev was using buffers larger than it needed across the device;
  fixed them to be the right size
- added a method to free the memory region mapped into the kernel
  through the device
- freed that mapped memory region on pvfs2-client-core shutdown
  (valgrind complained)
- modified device driver to work properly in non-blocking mode from
  userspace by implementing the character device poll method
- modified pint-dev test function to properly handle non-blocking
  responses from the device driver
- modified PINT_flow_reset to not allocate a new mutex unless the old
  one was destroyed
- modified all job uses of the id-generator to use the safe, rather
  than fast, methods (useful for several reasons including safe
  cancellation)
- modified cancellation methods to be able to handle ops that have
  already completed
- modified the job_dev_unexp method to have (and honor) the no
  immediate completion flag if passed (used in the pvfs2-client-core)
- modified the job completion callbacks to make sure to NOT add a
  completed job desc to the completion queue if it's already been
  added (by checking a flag, not scanning).  this is a safety and
  should only be used when a non-thread-safe client library is being
  used in a thread safe env, but we should handle it gracefully anyway
- replaced all kernel allocations of ops through the slab allocator
  handled op_cache to be replaced by a wrapper method (op_alloc(), as
  suggested by Murali) -- the other cache allocations will probably be
  replaced later.  this allows the removal of the extern op_cache
  declaration
- added macros for freeing some of the most heavily used server
  response messages (readdir, lookup, getattr) -- the others are
  coming later
- freed dirents coming out of sysint response object in the
  pvfs2-client

- fix some typos
- bump version; ready for new dev

- version bump; ready for tagging

- replace neillm-script-fu with nathan-script-fu; k24_minor_ver detection
  has a chance at being correct now
- fix 2.4.x kernel module makefile output to look more like 2.6.x
  makefile output

- more robust configure check for 2.4.x kernel minor version
- configure cleanups (--help output)
- fix mmap/execution on 2.4.x kernels (mostly works now -- i.e.
  pvfs2-shell-test passes)
- do not truncate inode pages on mmap call; only do this after the
  file is mmap'd, as this causes an infinite (readpage) loop on 2.4.x
  and is only a sanity check in the best case
- force 2.4.x mmap call to be readonly by clearing the VM_MAYWRITE
  flag
- re-work 2.4.x readpage to work with the block_read_full_page
  function (which makes use of our pvfs2_get_block{s} methods) and is
  similar to the 2.6.x mpage code (better code re-use, more sane code)

- added a license notice for the GPL'd kernel module code in COPYING
  and README files
- added Murali to the CREDITS file
- added a configure check for the kernel 2.4.x minor version to know
  if we need to define a few functions or not
- added a new pvfs2-error-code that can be used as an exit code for
  the pvfs2-client-core to indicate to the pvfs2-client that it should
  continue respawning it, but to sleep for a bit first.   [2.4.x in
  particular waits a while to release the device file after the
  process has died, though the same is possible under 2.6.x i guess]
- updated the test mount script with 2.4.x support if running 2.4.x
- added some debugging to client-side create state machine
- murali: fixed a logic bug in mmap-ra-cache
- murali: added matching unlocks to quickhash code functions
- removed MOD_{INC|DEC}_USE_COUNT calls, as at least under my 2.4.26
  testing, they are not necessary
- removed several lock_kernel calls in the 2.4.x code paths that
  caused the kernel to hang in a few places (still investigating)
- murali: fixed the in kernel mount option string parsing
- some misc cleanups
- verified that symlinks now work (at least in basic testing)

[ NOTE: this mostly works under 2.4.26 in my testing, however there
  are some known problems remaining ]

- initial addition of linux kernel 2.4.x support code and build requirements
   (thanks to Murali for working on a prototype and reviewing the merge)

- version bump, ready for new dev

- final version bump before tag

- changelog update
- version bump, prepping for release

- version bump, ready for new dev

- changelog update for 0.1.3 release
- version bump to 0.1.3
- misc cleanups and assertion additions
- fixed a karma bug added after the multiple server configuration support was
  added

- remove the empty module.mk.in from the kernel src dir -- this breaks
  kernel module builds for me

- this is more like i meant

- fix --enable-karma option to oppose the --disable-karma option
- pre release version bump

Break the build process for the test subdirectory out into its own
configure and makefile setup.  Various tweaks along the way.  Some stuff
still needs to be streamlined.  It should work for both in tree and out of
tree builds without any special options to configure as long as you build
the main pvfs2 tree first.

whoops; remember to make intermediate directory so that out of tree builds
continue to work

moved pvfs2-client* source from test/kernel/linux-2.6 to
src/apps/kernel/linux-2.6; still need to update some scripts and
documentation to reflect the change

--with-efence now takes a path to the library

- version bump, ready for new dev

- version bump in prep for 0.1.2 release

- configure cleanups (replaced inconsistent uses of AC_HELP_STRING, as it's
  not supported on autoconf 2.13)
- made the mmap-ra-cache a configure time option (enabled by default but can
  now be disables with --disable-mmap-racache configure option)
- fix mmap-ra-cache bug that didn't flush data at a time when we know it's
  no longer valid; explicitly flush at these times

- Kernel module builds:
    - build the module with everything else, if configured
    - clean up properly
    - work out-of-tree

add shared and static libraries build options; default static only

- version bump, new dev ready

- set version to 0.1.1, tag following shortly

- typo (missing paren)

- version bump

- bump down a gm gossip_lerr call to gossip_debug since it's not an error
- mark release as 0.1.0; ready to be tagged

- optionally disable building karma gui (it's enabled by default)

Adjusted coverage flags somewhat.

Minor stuff regarding coverage analysis.

check for DB_DIRTY_READ flag.  the db (version 3.2.9) on Jazz does not have it

try one more time: if user provides CFLAGS, don't slap -g on it

can now use MPE or Pablo to profile pvfs2.  still needs more work.

- version bump; ready for new development

- getting ready for 0.0.9 release now

if the user provided CFLAGS, don't f with them

notice when compiler is Intel C; adjust compile flags appropriately

Karma GUI in place.

- add configure test for sys/sysinfo.h (should be on all linux machines)
- add memory and uptime information into the (now ill-named) statfs object
- update pvfs2-statfs to display this newly added information

- changelog version bump
- configure version bump
- some server cleanups

- final changelog and configure updates for 0.0.8 release

- redefine WORDSIZE definition so as not to need pvfs2-config.h
- remove installation of pvfs2-config.h
- remove configure checks for sizeof(long) [ no longer needed ]
- version bump to pvfs2-0.0.8pre2, because pre1 is old and boring now

added --enable-segv-backtrace option to configure, turns on server side
behavior of dumping a stack trace if a seg fault is received

- configure test for size of long
- assign __WORDSIZE in kernel space based on it

bump version number

- bump version number in prep for release

- changelog update
- removed extra berkeley db error reporting since it's not integrated with
  our gossip error reporting system.  can now be explicitly enabled using
  a new configure option --with-berkdb-debug

- cosmetic fix

a test for SRC_DIR that should set the srcdir, even w/ out-of-tree builds

This is a full merge of my pvfs2-dbpf-attr-cache-branch, so this is
the cumulative changelog (based on existing cvs messages).

- initial dbpf-attr-cache implementation and cleanups
- added all the hooks to grab configurable cacheable metadata keys
  from a config file.  re-arranged the config file by separating out
  fs specific hints into a StorageHints area.  updated genconfig to
  account for these changes.
- initial working implementation of the unified dbpf-attr and
  keyval/data pair cache.  holy cow this thing is fast... much work to
  be done still.
- initial locking added
- replaced debug level with a new DBPF_ATTRCACHE_DEBUG level
- added safe to/from cache data copies
- added write-through caching for keyval data (still need to do generic attrs)
- updated simple.conf
- allow config file to have multiple AttrCacheKeywords lines
- fix some cache parts that allow symlinks to work (i.e. be cached)
- added a verbose warning for a particular kind of configuration error
  for a user to see if it should happen
- some more robust configure checks
- more configure related changes
  disable vis build if sdl is detected, but sdl-ttf isn't
- fix broken ifdef nesting that caused compilation failure on non
  aio-threaded configurations
- safe copy of attributes (to/from, preparing for write-through impl)
- server cleanups (making way for pre-caching of a number of attrs on server
  startup since it reads them from disk during handle iterate anyway)
- update create test program to report human readable creation error
- put some quick human readable error reporting in pvfs2-client-core
- added some quickhash method we've been wanting but never had
- implemented policy to limit previously unbounded size of attr cache
- adjusted simple.conf to have some good defaults
- adjusted pvfs2-genconfig to match those defaults
- fixed some htable cleanups
- started write-through attr updates
- update changelog and version info, preparing for mainline merge
- implement write-through of dbpf-resize operation
- make sys-truncate return -PVFS_EINVAL if truncate is called on an object
  that can't be truncated
- fix error code return value of sys-truncate
- cosmetic changes to truncate test program output
- added some comments
- updated showconfig with copyright info
- updated sample configs for showconfig
- added a default handle purgatory value if a value of zero is specified
  (e.g. not specified in config file at all)
- for now, remove the cached dbpf-attr object on i/o writes
- slightly robustify the glibc aio callback detection

slightly robustify the glibc aio callback detection

slightly robustify the glibc aio callback detection

- more cleanups
- started write-through attr updates
- update changelog and version info, preparing for mainline merge

more configure related changes
disable vis build if sdl is detected, but sdl-ttf isn't

some more robust configure checks

added all the hooks to grab configurable cacheable metadata keys from a config
file.  re-arranged the config file by separating out fs specific hints into
a StorageHints area.  updated genconfig to account for these changes.

re-worked the SDL checks; I think it's more robust now, but at the very least,
it works on my ppc now ;-)

bump version numbers for next release