[ewg] [PATCH] backport patches for ib_ipath

[Ralph Campbell]

The following changes allow ib_ipath to compile on everything
except RHEL4.

Vlad, please pull from:

git.openfabrics.org/~ralphc/ofed-1.4-linux-2.6/.git ofed_kernel

commit a6415e3fb0f09bbfff15d4f37cd8709a614a1482
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:25:59 2008 -0700

    BACKPORT - fix minor warnings for 2.6.16 and older kernels
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit d1560bfbd84e0a4c359438a492c77f130dd98bc9
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:25:20 2008 -0700

    BACKPORT - change signature of ipath_get_sb for 2.6.17 and earlier
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit 2b2f4ec8098928ba0ed323770c1060d06566c222
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:24:50 2008 -0700

    BACKPORT - don't clear memory a second time
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit 3c65e7f89b5d2daf1d1addc46ca9fa690fbc0ece
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:24:04 2008 -0700

    BACKPORT - avoid using vmalloc_user() in 2.6.18 due to bugs.
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit 436d3d94a211f4766345ecee4925e6740b5a3eca
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:22:35 2008 -0700

    BACKPORT - use old HT IRQ infrastructure on 2.6.18 and earlier
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit c0d89ab2a968137020cbf48ea393b560329974e9
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:21:58 2008 -0700

    BACKPORT - Use writev instead of aio_write in 2.6.18 and older kernels
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit b7882e7868c87160de13d808f42f909783c1a973
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:21:19 2008 -0700

    IB/ipath - revert struct vm_operations_struct nopage to fault rename
    
    This patch reverts commit 3c8450860ba9d6279dbc969633eacf99161860d9 in 2.6.25
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit dfa49c798bcd79a9c1f7084ea1d234d68e947a4f
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:20:40 2008 -0700

    BACKPORT - revert to older code for creating sysfs driver groups
    
    This reverts commit 23b9c1ab5baf368a32b7242bf110ef1f48700d04 in 2.6.25
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit 27c62b169696746a12860c5faab712226a3613ad
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:19:50 2008 -0700

    BACKPORT - revert struct class_dev to device
    
    This patch reverts commit f4e91eb4a81559da87a3843758a641b5cc590b65 in 2.6.26
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

commit e8762cc6a8be9f2f2b64cd6801fe414d5838483e
Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
Date:   Tue Jul 15 18:19:09 2008 -0700

    BACKPORT - revert pid_t to struct pid pointer change
    
    This reverts commit 40d97692fbfe52ef68fa771d8121394b2210fd67 in 2.6.26.
    
    Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>