Commit Graph

335 Commits

Author SHA1 Message Date
Michael Meffie
dea064a509 Linux: missing configure test
Add the kmem_cache_create test for dtor to the configure to
build again on older versions of linux. Fixes,
osi_vfsops.c:264: error: too few arguments to function
‘kmem_cache_create’

Change-Id: I1c1aa63e8dbe2df6c9b889edaa66708d7db01847
Reviewed-on: http://gerrit.openafs.org/1948
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-05-11 13:27:59 -07:00
Russ Allbery
fd9ab5cb7c Include common param file for Linux alpha builds
The sysname for Linux Alpha is alpha_linux_26 (or 24 or 22) with an
extra underscore before the version, unlike all the other Linux sysnames.
Allow for that case when deciding whether to include the common Linux
param header.

Change-Id: Icab3a9214d0bd020b846734cce27da6c1bdeab56
Reviewed-on: http://gerrit.openafs.org/1915
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-05-07 11:24:43 -07:00
Simon Wilkinson
07098dc670 Modernise use of AC_CHECK_TYPE
Prior to autoconf 2.13, AC_CHECK_TYPE took two arguments, the type
to check and the a default type to use if that type wasn't defined.
This usage has been deprecated since 2.13, and the AC_CHECK_TYPE
macro itself now behaves differently. Whilst there is a compatibility
mode, the autoconf documentation discourages its use.

We also have an occurence of a slightly more modern AC_CHECK_TYPE,
where we explicitly #define a default value if one isn't provided.
The autoconf manual also discourages this form, however, in favour
of using AC_CHECK_TYPES, and placing suitable typedefs in an
external header file.

Modify our code so we do things in the recommended way.

Change-Id: Ie28067f2c90e9a3aa25cfde45ef081da2d380ee1
Reviewed-on: http://gerrit.openafs.org/1914
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-05-06 12:23:22 -07:00
Jonathan A. Kollasch
fb50f2478c NetBSD 5.0 support.
Change-Id: I5b9c5b8204ef729d9719f195ddbaf83c5f9cb4b5
Reviewed-on: http://gerrit.openafs.org/1738
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-05-03 19:55:30 -07:00
Antoine Verheijen
0ec2239b73 Fix pattern to detect i386-based OpenBSD system type
When the pattern to detect OpenBSD system types (via MKAFS_OSTYPE) was split
into two separate ones for amd64 and i386 architectures, the pattern for
i386-based systems was not set quite right. As a result, i386-based OpenBSD
systems are no longer detected properly at this stage, resulting in an error
of "cannot find input file: src/libafs/MakefileProto..in" during configure.
This patch corrects the pattern.

Change-Id: I67079af74117fa3cdc765f19944e23223709ae6b
Reviewed-on: http://gerrit.openafs.org/1897
Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-05-03 17:02:25 -07:00
Matt Benjmain
94c15f62d3 netbsd: rebase cm at NetBSD 4.0
Rebases the NetBSD client port at OpenBSD, which was originally
based on an original NetBSD client port by John Kohl.  The
platforms remain closely connected.

At latest milestone, the port builds as a NetBSD LKM, which was
loadable and can mount /afs (but much work remains past this
point).

Change-Id: I1381a60078794da03a82e7bf6e78127da82d61ee
Change-Id: I8e07e82796f6981c99d22ff50dd5b284aad88a9f
Reviewed-on: http://gerrit.openafs.org/1874
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2010-04-28 13:47:20 -07:00
Simon Wilkinson
d02f9a0b0b Linux: Register number sysctls only when desperate
The AFS sysctl interface was trying to register numeric system
calls whenever the kernel would let it. This is anti-social, as
we've never had sysctl numbers allocated to us. In kernels newer
than 2.6.24, this misbehaviour is detected and punished. In recent
kernels, the binary interface has gone away entirely.

Since 2.6.19, the kernel has supported allocated unnumbered system
calls. These are only available via /proc/sys (and not the using
the legacy, binary, API), but they're really the only interface
available to us.

Change the sysctl registration code to use unnumbered calls whenever
they are available. Unnumbered calls aren't available in 2.4.x, so
completely remove that code there.

Change-Id: I882117ca2250894f479292026fed84ff0b5e7972
Reviewed-on: http://gerrit.openafs.org/1871
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 21:43:15 -07:00
Simon Wilkinson
b7a94ae11d Linux: autoconf fallout
grap != grab - fix spelling of grab_cache_page_write_begin

Change-Id: I4032bff80b6d1d7568af8f9de59a56c0bd6a661a
Reviewed-on: http://gerrit.openafs.org/1859
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 14:36:04 -07:00
Simon Wilkinson
0c7cb6051f Linux: Reorder the tests
As a final change to the Linux autoconf stuff, reorder the list of
tests so that it's more easy to see what's being checked for, and to
prevent multiple copies of the same thing being added.

Change-Id: I84ca132e178b45ac25ebd48e71193bdd84965770
Reviewed-on: http://gerrit.openafs.org/1857
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:27:54 -07:00
Simon Wilkinson
2ce28370cf Linux: Don't preprocess osi_vfs.h
Before we did inodes properly, we needed to pre-process osi_vfs.h,
in order to merge our inode structure with the Linux one. Ever since
we moved to native inodes, that preprocessing has been disabled, and
we've just copied osi_vfs.hin to osf_vfs.h Skip this pointless step,
permanently rename osi_vfs.hin to osi_vfs.h, and remove the unused
support scripts.

Change-Id: I5e21eccf2242080cd8b994bd1654260bfb531420
Reviewed-on: http://gerrit.openafs.org/1856
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:27:32 -07:00
Simon Wilkinson
a8cc8dbbe5 Linux: Don't waste autoconf checks on cpp defines
If something is a #define, then there's no point in doing a test
compile to check for its presence. Instead, just do #if defined(X)

Remove the tests for for_each_process and prev_task.

Change-Id: Id8a9fddf2571cccd5d61982d4662bce2009c8f43
Reviewed-on: http://gerrit.openafs.org/1855
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:27:12 -07:00
Simon Wilkinson
a89d6b029d Linux: Add general autoconf macro for Linux kernel
Add AC_CHECK_LINUX_BUILD() to do a standardised Linux build, which
takes a "checking" message, the autoconf variable to use to cache
the results, headers and code to run, preprocessor variable to
define, and a description of that variable.

Reimplement all of our existing check macros in terms of this one,
resolving many typos along the way.

Change-Id: I41988c83fcdbfbf8152f6dd0e7c4bd16c7a04240
Reviewed-on: http://gerrit.openafs.org/1854
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:26:46 -07:00
Simon Wilkinson
02f2c7cb37 Linux: Add autoconf macro for structure checks
Add a new autoconf macro for doing structure element checks, and
modify all simple structure checks to use it. This introduces a
standard name form - STRUCT_structure_HAS_element, so there are
some changes in the code to make use of this standard form.

Change-Id: Ife967322503ae6f428e76845000de04f26929e65
Reviewed-on: http://gerrit.openafs.org/1853
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:23:34 -07:00
Simon Wilkinson
6fc3ac3670 Linux: Macroise kernel function autoconf tests
We spend a lot of time in autoconf checking to see if kernel
functions are available. Rather than copying and pasting the same
code everytime we do so, create a macro to do function tests, and
use that macro. This results in standardised naming, so change all
of the places that use autoconf results to use the same standardised
names.

Change-Id: I36212e6c28c4b8455f859da1bbf3e456a2aabc07
Reviewed-on: http://gerrit.openafs.org/1849
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:22:59 -07:00
Simon Wilkinson
eef18466d9 Linux: Tidy up freezer code
Linux now provides try_to_freeze(), which can be used to replace
all of our refrigerator code. This has been in the tree for a long
time, and actually predates many of the changes we've been modifying
our code to work with. So, use try_to_freeze wherever we can, and keep
a simpler compatibility function for kernels which are too old to have
it.

Change-Id: Iec50f83382f46d2b17b43da815a75755ea916bc6
Reviewed-on: http://gerrit.openafs.org/1845
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:22:07 -07:00
Simon Wilkinson
ef8bd5a29b Linux: Simplify header file checks
Provide an autoconf macro to perform tests for the existence of
Linux kernel header files. Use this to standardise the naming of
header file presence #defines, and to simplify the linux tests.

Change-Id: I49629679db56c5f9a39487bd78fc2e59d5da0269
Reviewed-on: http://gerrit.openafs.org/1844
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-27 12:21:15 -07:00
Simon Wilkinson
1798fe6da1 Linux: Use kernel network helper functions
Linux has various network helper functions available, which are
guaranteed to do the right thing in terms of setting address space
limits, not dereferencing NULL pointers, and the like. Use these, where
they're available, rather than rolling our own.

kernel_sendmsg and kernel_recvmsg appeared in 2.6.8.

Change-Id: I1cd91afd2182ad936756bbc4cf692262499c16e4
Reviewed-on: http://gerrit.openafs.org/1822
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-25 21:09:20 -07:00
Simon Wilkinson
20d08fb0ec Linux: Don't roll our own llseek
llseek is a little more complex than just setting the pos field of
the file structure.

Where vfs_llseek is available to us (it has been since 2.6.8) use that
directly. If vfs_llseek isn't available, then use either the
filesystem's llseek method, or default_llseek (available since 2.6.0),
to ensure we get the proper locking.

Change-Id: I26bcbff984c7164be1724eee7a46cbe6e02bc510
Reviewed-on: http://gerrit.openafs.org/1816
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-25 21:04:13 -07:00
Andrew Deason
38a80c3323 Add a FUSE implementation for afsd
This adds afsd.fuse, which allows for mounting AFS via FUSE (via
libuafs), instead of via the OpenAFS kernel module.

Change-Id: Iaafe4a5f3034fed943e2e73f79ac95580946f9a8
Reviewed-on: http://gerrit.openafs.org/1725
Tested-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-14 15:17:27 -07:00
Andrew Deason
2f03d4e6e2 Use AFS_CACHE_VNODE_PATH for UKERNEL
Use the AFS_CACHE_VNODE_PATH cache mechanism for UKERNEL, to be
compatible with new kernel caching code, and simplify the cache code a
little bit.

Change-Id: Ifc44790db08a336cca0032a1d05eedf70d2b24b8
Reviewed-on: http://gerrit.openafs.org/1721
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-04-09 12:38:15 -07:00
Andrew Deason
129b6954a6 Use AC_USE_SYSTEM_EXTENSIONS
Instead of defining various symbols like _XOPEN_SOURCE, _BSD_SOURCE, and
the like, just use autoconf's AC_USE_SYSTEM_EXTENSIONS to define all of
the appropriate symbols for us. Deal with some fallout by removing some
of the existing defines.

Change-Id: I1c1968c89cc2dfda1293fd2566dac8e266325a72
Reviewed-on: http://gerrit.openafs.org/1582
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-03-22 15:15:56 -07:00
Simon Wilkinson
b7b0b4dea7 Linux: Fix builds on RHEL4
RHEL4 has a very old 2.6 kernel (2.6.9), which predates the start of
the Linux git tree. When I started using page_offset, I mistakenly assumed
that everything in the initial commit to that tree was available in all
2.6 versions we care about. That isn't the case, sadly.

Secondly, the new readpage code uses zero_user_segments, which has only
been available in the mainline kernel since 2.6.25 (RHEL5 appears to have
a backport)

Implement local wrappers for both of these functions when configure can't
find them in the kernel we're building for.

These functions have been created independently of the Linux tree.
page_offset is a copy of the code we used before we replaced it.
zero_user_segments() is a first-principles implementation
of the function (which zeros a pair of memory ranges within a single page)

FIXES 126678

Change-Id: I622aec4d653567d5234e7a127b981e97468bbe7c
Reviewed-on: http://gerrit.openafs.org/1525
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-03-06 05:32:52 -08:00
Derrick Brashear
fb79f12658 institute afsdb dns lookup timeout if we can
don't be willing to wait more than about an rx timeout period for afsdb
retries.

Change-Id: Idca642ff7abe6b9233c7501b0f06fd353567bb04
Reviewed-on: http://gerrit.openafs.org/1407
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2010-02-27 09:38:35 -08:00
Anders Kaseorg
91e50aa81b Linux: autoconf.h is moving in 2.6.33
In 2.6.33, <linux/autoconf.h> is moving to <generated/autoconf.h>.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Change-Id: Ib97031728b89cf8e17581f3c425216ae4b5538ec
Reviewed-on: http://gerrit.openafs.org/1351
Reviewed-by: Marc Dionne <marc.c.dionne@gmail.com>
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2010-02-23 11:54:34 -08:00
Anders Kaseorg
660c7a3952 Linux: Use kbuild to check for UML
<linux/autoconf.h> is automatically included by kbuild; you aren’t
supposed to include it directly.  That breaks in 2.6.33 because
<linux/autoconf.h> is moving to <generated/autoconf.h>.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Change-Id: I56c90dfe90ef72408620793fcd4e927ea3d8f468
Reviewed-on: http://gerrit.openafs.org/1350
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-02-23 11:54:07 -08:00
Simon Wilkinson
a9951410e1 Linux: bdi doesn't always have a name
The 'name' element of the backing_dev_info structure is new in
2.6.32 - add yet another configure test, and #ifdef to protect our
setting of it.

Change-Id: I0a3e411e571e05771619381bf621d299482c695b
Reviewed-on: http://gerrit.openafs.org/1341
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-02-18 18:08:58 -08:00
Andrew Deason
d750c28ac2 Add support for amd64_obsd46
Change-Id: I41a9ad46cac3af1e02c64683e893c9547598e867
Reviewed-on: http://gerrit.openafs.org/1337
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-02-17 12:49:40 -08:00
Derrick Brashear
6201628022 kill macos prior to panther
we haven't had a 10.2 machine to build on in quite a while...

might as well pull it, it probably doesn't work anymore

Change-Id: Iad809e83dadb0e7fa8c61b3f37f574a571042fc8
Reviewed-on: http://gerrit.openafs.org/1335
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-02-17 10:49:18 -08:00
Derrick Brashear
01d8b61c7f internationalize comerr
reuse the Heimdal method for internationalizing comerr. as a side effect
provide heimdal-compatible com_right.

LICENSE BSD

Change-Id: I6e699125ad3af1d402f14f9462e434c30ad4d1fd
Reviewed-on: http://gerrit.openafs.org/1225
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-02-09 10:21:03 -08:00
Marc Dionne
d4c97c0017 src/pam warning fixes
The second parameter to pam_conv() should be a const pointer on
recent systems.  Make it so to eliminate a couple of warnings.
A configure test is added to deal with some systems where pam_conv()
might not be const.

Cast a few assignments to cell_ptr in afs_auth.c and afs_setcred.c
since the argv parameter is const.

Change-Id: I5757310c94a6f26ca7dab656edaa416d16e32e2a
Reviewed-on: http://gerrit.openafs.org/847
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-01-14 20:46:30 -08:00
Derrick Brashear
165571947b linux kernel lacks uintptr
sadly only recent kernels include uintptr_t. change the cast to use unsigned
long

Change-Id: Ib69f7aa0f2d316c5ea8bdc960b15ee0f89f96250
Reviewed-on: http://gerrit.openafs.org/1059
Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2010-01-07 17:13:41 -08:00
Simon Wilkinson
35d5b6c4e1 Remove unused configuration tests
Remove configure tests that are no longer used by the build. Testing
for unused features just slows down the configuration process.

Change-Id: I18e161e8e608a69801c53980e545c3077a7578d7
Reviewed-on: http://gerrit.openafs.org/1033
Tested-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-31 05:01:46 -08:00
Simon Wilkinson
16a824222b Remove HAVE_STRUCT_BUF test
Ever since b1edf891d7 was committed,
we've not needed to test to see if the OS provides struct buf - we
can just declare it as a structure without providing a definition
in all circumstances.

Change-Id: I81ebad0dcda91229883f44b657e8113ec832668d
Reviewed-on: http://gerrit.openafs.org/1032
Tested-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2009-12-31 05:01:26 -08:00
Simon Wilkinson
f545882014 Remove --disable-full-vos-listvol-switch option
Remove the --disable-full-vos-listvol-switch configuration option,
and the corresponding #ifdefs. Full output from vos listvol is now
always enabled.

Change-Id: Ib4900cc0a8532b3db31d13d34fe59946b34e86ed
Reviewed-on: http://gerrit.openafs.org/1031
Tested-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-31 05:01:08 -08:00
Simon Wilkinson
5364fada4e Remove --disable-afsdb
Remove the --disable-afsdb option from configure, and the
corresponding AFS_AFSDB_ENV #ifdefs from the code. This means that
the AFSDB code will always be built, but whether it used or not
can still be controlled by runtime options in the cache manager.

Change-Id: I1378c4626568e02345c7c400804747c446078c7e
Reviewed-on: http://gerrit.openafs.org/1030
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-31 05:00:30 -08:00
Simon Wilkinson
12f35e8493 Remove --disable-largefile-fileserver
Make largefile fileservers the only option. Remove all of the
AFS_LARGEFILE_ENV ifdefs, and tidy up some code as a result of
this change.

Change-Id: I126f7dc5505bbdb28c9337dcd2e81403045707f4
Reviewed-on: http://gerrit.openafs.org/1029
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Andrew Deason <adeason@sinenomine.net>
2009-12-31 04:55:31 -08:00
Simon Wilkinson
f085951d39 Turn on bos restricted code
Remove the #ifdef's around the bos restricted mode code. This makes
restricted mode available as part of the standard build, but a server
will not go into restricted mode unless the relevant command line
options are specified, or bos setrestricted is run.

Document bos_setrestricted and bos_getrestricted, and the new
'-restricted' command line option. Add a note to the man pages of
all of the commands whose behaviour is affected by restricted mode.

Add 'setr' and 'getr' aliases for setrestart and getrestart so that
these documented shortcuts continue to work (otherwise they'd be
ambiguous against setrestricted and getrestricted). Note that
setre, setres, and setrest will not work once this patch is applied.

Change-Id: Ie69d21493ea5f78757f0a3d478de43fdaabd3c31
Reviewed-on: http://gerrit.openafs.org/1028
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-31 04:54:52 -08:00
Simon Wilkinson
0f0f6cd613 Solaris: Be more flexible about compilers
OpenSolaris doesn't have its C compiler in /opt/SUNWspro/bin/cc,
but we still have to be careful to avoid gcc, as that can't
build the kernel module.

As a short term stop gap, add a PATH_PROG test which looks in
both /opt/SUNWspro/bin and /opt/SunStudioExpress/bin for cc.
We probably should look in more places, and in the long run,
we should probably be taking whatever autoconf gives us
(for userspace, at least)

Change-Id: Ie31cf1bf474650a081fc101a2aa40cfa6bd39423
Reviewed-on: http://gerrit.openafs.org/1020
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-22 15:23:47 -08:00
Marc Dionne
36f97969f3 Linux: utsrelease.h is moving
In kernel 2.6.33, utsrelease.h has moved to include/generated.
Adapt the configure code to consider that location, and clean
up that section's indentation.

Change-Id: I5061043ff7f46875a39953b11c472693650c7485
Reviewed-on: http://gerrit.openafs.org/1009
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-20 10:05:21 -08:00
Simon Wilkinson
34ffc9cd7d Linux: Use splice to speed up cache storeback
This patch adds a new cache store function for Linux, which uses
splice() and direct access to the page cache, rather than doing
data copies to a temporary buffer between rx and afs. It removes
one copy, and some context switching, from the write codepath.

One side-effect here is that it will delay storebehinds from
returning control to the user. Instead of returning once the first
4k has been successfully transfered, we will wait until a cache
chunk has been transmitted. This is currently unavoidable, as we
can't take the GLOCK within a splice actor.

Change-Id: I5b0284d67febccf099710589908fad18b808332c
Reviewed-on: http://gerrit.openafs.org/903
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-12-10 11:45:36 -08:00
Marc Dionne
886801b069 Linux: deal with ctl_name removal
The binary sysctl interface will be removed in kernel 2.6.33 and
ctl_name will be dropped from the ctl_table structure.
Make the code that uses ctl_name conditional on a configure test.

Change-Id: Iba0f107f299c6515e4e560d7596e6187bd68e399
Reviewed-on: http://gerrit.openafs.org/904
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2009-12-09 16:49:18 -08:00
Marc Dionne
22541ea832 aklog build fix: com_err.h header
Fix this build error:
aklog_main.c:67:21: error: com_err.h: No such file or directory

On some systems this system header is actually "et/com_err.h".  Cope
by checking for this at configure time and using that location if
needed.

Change-Id: Iaf4fb4fe157ff8e54aa043785377706eab6fb3d1
Reviewed-on: http://gerrit.openafs.org/836
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Russ Allbery <rra@stanford.edu>
Tested-by: Russ Allbery <rra@stanford.edu>
2009-11-17 18:25:27 -08:00
Marc Dionne
3abc87a5a9 Linux: kmem_cache_create fix and cleanup
Fix the kmem_cache constructor function to match the current
expected prototype, and cleanup related code.  This has been wrong
for a while, but since we were just passing extra parameters the
only effect was to generate a warning.

- Add a new configure test to detect the new constructor function
signature
- Define the older versions of the constructor in osi_compat.h,
making them call the current version
- Move a few compatibility #defines to osi_compat.h

Reviewed-on: http://gerrit.openafs.org/657
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-10-16 14:05:24 -07:00
Andrew Deason
58628eb745 Detect and use %zu for size_t when available
Commit db949b7fad was incorrect and
generated warnings on many platforms; we cannot determine the correct
format string for a size_t at compile-time. Instead use the %z length
modifier when we can detect that it is safe to use. Otherwise, fall back
to just %lu on Unix, since it is reasonable to assume
sizeof(size_t) == sizeof(unsigned long) on Unix.

Reviewed-on: http://gerrit.openafs.org/647
Reviewed-by: Russ Allbery <rra@stanford.edu>
Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-10-15 12:15:38 -07:00
Simon Wilkinson
d705e26eac Revert "Linux: kmem_cache_create fix and cleanup"
This reverts commit 6133d25397.

This patch breaks builds on RHEL5.3 - revert it until we can come up
with a fix.

Reviewed-on: http://gerrit.openafs.org/640
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-10-11 10:44:37 -07:00
Marc Dionne
6133d25397 Linux: kmem_cache_create fix and cleanup
Fix the kmem_cache constructor function to match the current
expected prototype, and cleanup related code.  This has been wrong
for a while, but since we were just passing extra parameters the
only effect was to generate a warning.

- Add a new configure test to detect the new constructor function
signature
- Define the older versions of the constructor in osi_compat.h,
making them call the current version
- Move a few compatibility #defines to osi_compat.h
- Clean up the call to kmem_cache_create by introducing an inline
afs_kmem_cache_create in osi_compat.h

Reviewed-on: http://gerrit.openafs.org/621
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-10-09 04:04:22 -07:00
Marc Dionne
db23268f68 Linux: 2.6.32 - Adapt to writeback changes
Adapt to the writeback changes in kernel 2.6.32
- Since we define our own backing_dev, it needs to be registered with
the writeback code and attached to the super_block.  Otherwise it
might get ignored when writeback is needed.
- Each backing_dev now gets its own kernel thread.  The name of the
thread is based on the registered name - the openafs one will appear
as "flush-afs".

Reviewed-on: http://gerrit.openafs.org/574
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2009-10-04 11:34:01 -07:00
Simon Wilkinson
d5b40d99a9 Add configure test for pagevec_lru_add_file
pagevec_lru_add_file isn't available on all Linux kernels.
Fallback to using pagevec_lru_add where necessary.

Reviewed-on: http://gerrit.openafs.org/558
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Marc Dionne <marc.c.dionne@gmail.com>
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2009-09-30 10:38:23 -07:00
Derrick Brashear
ca8890245b intptr fallout
some kernels don't have e.g. uintptr_t; revert this hunk for now.
also, autoconf as recent as what's in rhel5 has no macros. provide
some.

Reviewed-on: http://gerrit.openafs.org/553
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
2009-09-29 12:10:08 -07:00
Simon Wilkinson
6d51ebd6c8 Add support for warning checked builds
This patch adds a '--enable-checking' configuration option. When this
option is supplied, and gcc is in use, the compiler will treat any
warnings as errors. This will hopefully help stop new warnings from
creeping into the tree.

In order to still be able to build, all of the currently existing
warnings are accepted (these are documented in README.WARNINGS). With
this set of warning inhibitions, the tree is known to build on 32bit
Leopard - other systems may vary. Warning inhibition may be disabled
by supplying --enable-checking=all - in this case the tree will
definitely not build!

If --enabled-checking is not specified, the existing compilation
behaviour is maintained, so there is no user-visible change.

Gcc 4.2, or later, is required to use the pragma sets contained within
this patch. Again, they are not visible unless --enable-checking is
given.

Reviewed-on: http://gerrit.openafs.org/526
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-09-28 05:00:04 -07:00