[ewg] [GIT PULL OFED-1.5] NFSRDMA bug fixes

[Jon Mason]

On Thu, Aug 06, 2009 at 06:38:40PM -0500, Jon Mason wrote:
> Hey Vlad,
> Please pull from
> 
> ssh://vlad@sofa.openfabrics.org/home/jon/scm/ofed_kernel-1.5.git dev
> 
> It contains the following patches:

Added:

commit cc6ee58a982ca212eaf080d2a577882639210f83
Author: Jon Mason <jon at opengridcomputing.com>
Date:   Fri Aug 7 15:05:50 2009 -0500

    Pull in frmr iova_start truncation fix (which still does not seem to
    have made it upstream).
    
    Signed-Off-By: Jon Mason <jon at opengridcomputing.com>

commit a529da97c7994fb1acbb3304376217d2e2d3189e
Author: Jon Mason <jon at opengridcomputing.com>
Date:   Fri Aug 7 14:28:09 2009 -0500

    JFS is being rejected as an exportable filesystem due to its lack of
    get_dentry function.  In kernels older than 2.6.23, a helper function
    existed for those file systems with did not have get_dentry.  This patch
    re-adds that helper function to exportfs.  This enables JFS to function
    as an exportable file system under NFS.
    
    This fixes bug 1697 on SLES10sp2
    
    Signed-Off-By: Jon Mason <jon at opengridcomputing.com>

commit c5f454fce6191f8f6fdc7ec2a3cb1beb08c38444
Author: Jon Mason <jon at opengridcomputing.com>
Date:   Fri Aug 7 14:24:47 2009 -0500

    JFS is being rejected as an exportable filesystem due to its lack of
    get_dentry function.  In kernels older than 2.6.23, a helper function
    existed for those file systems with did not have get_dentry.  This patch
    re-adds that helper function to exportfs.  This enables JFS to function
    as an exportable file system under NFS.
    
    This fixes bug 1697 on RHEL5.2
    
    Signed-Off-By: Jon Mason <jon at opengridcomputing.com>

commit 68afdf97804491db2891a0a30a856508617ccfc6
Author: Jon Mason <jon at opengridcomputing.com>
Date:   Fri Aug 7 14:22:25 2009 -0500

    JFS is being rejected as an exportable filesystem due to its lack of
    get_dentry function.  In kernels older than 2.6.23, a helper function
    existed for those file systems with did not have get_dentry.  This patch
    re-adds that helper function to exportfs.  This enables JFS to function
    as an exportable file system under NFS.
    
    This fixes bug 1697 on RHEL5.3
    
    Signed-Off-By: Jon Mason <jon at opengridcomputing.com>

commit 6f8ab21219eb19a7194a11e4f8531a3eb15e2f5c
Author: Jon Mason <jon at opengridcomputing.com>
Date:   Fri Aug 7 14:20:53 2009 -0500

    JFS is being rejected as an exportable filesystem due to its lack of
    get_dentry function.  In kernels older than 2.6.23, a helper function
    existed for those file systems with did not have get_dentry.  This patch
    re-adds that helper function to exportfs.  This enables JFS to function
    as an exportable file system under NFS.
    
    This fixes bug 1697 on RHEL5.4
    
    Signed-Off-By: Jon Mason <jon at opengridcomputing.com>

commit 11627f459cfad7083c2265964878d9fbcdc6f285
Author: Jon Mason <jon at opengridcomputing.com>
Date:   Fri Aug 7 14:18:33 2009 -0500

    JFS is being rejected as an exportable filesystem due to its lack of
    get_dentry function.  In kernels older than 2.6.23, a helper function
    existed for those file systems with did not have get_dentry.  This patch
    re-adds that helper function to exportfs.  This enables JFS to function
    as an exportable file system under NFS.
    
    This fixes bug 1697 on 2.6.22
    
    Signed-Off-By: Jon Mason <jon at opengridcomputing.com>


> commit bf88ed67cb39869c1599af5be7d77425a2cbab45
> Author: Jon Mason <jon at opengridcomputing.com>
> Date:   Thu Aug 6 16:50:07 2009 -0500
> 
>     Getting Stale NFS file handles when running NFS tests on XFS (regardless
>     of RDMA and transport).  I have determined the root of the problem to be
>     the encoding/decoding of the file handle.  While other file systems have
>     functions to encode the file handle, most simply copy the existing
>     struct into the memory NFS provides.  When getting the dentry, they
>     reference the memory in the way that the struct is.  However, XFS
>     encodes by writing all of the relevant info into an array (not they way
>     it is stored in the struct).  Thus, the decode function must be called
>     (which was not necessary for the others based on their simplicity).  The
>     decode method for xfs calls sb->s_export_op->find_exported_dentry(), so
>     this must be set prior to any calls.  This was done in the original
>     version of the NFS code in 2.6.22.  This issue only seems to affect
>     kernels 2.6.22 and older.
>     
>     This patch fixes RHEL5.2
>     
>     Signed-Off-By: Jon Mason <jon at opengridcomputing.com>
> 
> commit 4c3fe1ff8d9f114b98e022f86bbeaef7303314cc
> Author: Jon Mason <jon at opengridcomputing.com>
> Date:   Thu Aug 6 16:48:04 2009 -0500
> 
>     Getting Stale NFS file handles when running NFS tests on XFS (regardless
>     of RDMA and transport).  I have determined the root of the problem to be
>     the encoding/decoding of the file handle.  While other file systems have
>     functions to encode the file handle, most simply copy the existing
>     struct into the memory NFS provides.  When getting the dentry, they
>     reference the memory in the way that the struct is.  However, XFS
>     encodes by writing all of the relevant info into an array (not they way
>     it is stored in the struct).  Thus, the decode function must be called
>     (which was not necessary for the others based on their simplicity).  The
>     decode method for xfs calls sb->s_export_op->find_exported_dentry(), so
>     this must be set prior to any calls.  This was done in the original
>     version of the NFS code in 2.6.22.  This issue only seems to affect
>     kernels 2.6.22 and older.
>     
>     This patch fixes RHEL5.3
>     
>     Signed-Off-By: Jon Mason <jon at opengridcomputing.com>
> 
> commit 417ff3ab1639878aabd6bf13c54277c94226e3b5
> Author: Jon Mason <jon at opengridcomputing.com>
> Date:   Thu Aug 6 16:45:21 2009 -0500
> 
>     Getting Stale NFS file handles when running NFS tests on XFS (regardless
>     of RDMA and transport).  I have determined the root of the problem to be
>     the encoding/decoding of the file handle.  While other file systems have
>     functions to encode the file handle, most simply copy the existing
>     struct into the memory NFS provides.  When getting the dentry, they
>     reference the memory in the way that the struct is.  However, XFS
>     encodes by writing all of the relevant info into an array (not they way
>     it is stored in the struct).  Thus, the decode function must be called
>     (which was not necessary for the others based on their simplicity).  The
>     decode method for xfs calls sb->s_export_op->find_exported_dentry(), so
>     this must be set prior to any calls.  This was done in the original
>     version of the NFS code in 2.6.22.  This issue only seems to affect
>     kernels 2.6.22 and older.
>     
>     This patch fixes RHEL5.4
>     
>     Signed-Off-By: Jon Mason <jon at opengridcomputing.com>
> 
> commit d7e621cf873d9a00521d15f9e7bfe605cabde6a3
> Author: Jon Mason <jon at opengridcomputing.com>
> Date:   Thu Aug 6 15:29:04 2009 -0500
> 
>     Getting Stale NFS file handles when running NFS tests on XFS (regardless
>     of RDMA and transport).  I have determined the root of the problem to be
>     the encoding/decoding of the file handle.  While other file systems have
>     functions to encode the file handle, most simply copy the existing
>     struct into the memory NFS provides.  When getting the dentry, they
>     reference the memory in the way that the struct is.  However, XFS
>     encodes by writing all of the relevant info into an array (not they way
>     it is stored in the struct).  Thus, the decode function must be called
>     (which was not necessary for the others based on their simplicity).  The
>     decode method for xfs calls sb->s_export_op->find_exported_dentry(), so
>     this must be set prior to any calls.  This was done in the original
>     version of the NFS code in 2.6.22.  This issue only seems to affect
>     kernels 2.6.22 and older.
>     
>     This patch fixes SLES10sp2
>     
>     Signed-Off-By: Jon Mason <jon at opengridcomputing.com>
> 
> commit e9b3ca8f9056d25971f29793cc8d31c8af22c6a3
> Author: Jon Mason <jon at opengridcomputing.com>
> Date:   Thu Aug 6 10:26:24 2009 -0500
> 
>     Getting Stale NFS file handles when running NFS tests on XFS (regardless
>     of RDMA and transport).  I have determined the root of the problem to be
>     the encoding/decoding of the file handle.  While other file systems have
>     functions to encode the file handle, most simply copy the existing
>     struct into the memory NFS provides.  When getting the dentry, they
>     reference the memory in the way that the struct is.  However, XFS
>     encodes by writing all of the relevant info into an array (not they way
>     it is stored in the struct).  Thus, the decode function must be called
>     (which was not necessary for the others based on their simplicity).  The
>     decode method for xfs calls sb->s_export_op->find_exported_dentry(), so
>     this must be set prior to any calls.  This was done in the original
>     version of the NFS code in 2.6.22.  This issue only seems to affect
>     kernels 2.6.22 and older.
>     
>     This patch fixes 2.6.22
>     
>     Signed-Off-By: Jon Mason <jon at opengridcomputing.com>
> 
> commit 9bb82e32e616d17ce5ad6278442718b1262167ec
> Author: Jon Mason <jon at opengridcomputing.com>
> Date:   Thu Jul 30 14:30:32 2009 -0500
> 
>     RHEL5.4 does not need the genalloc shim due to the genalloc code being
>     exported and accessable in this release.
>     
>     Signed-Off-By: Jon Mason <jon at opengridcomputing.com>
> 
> 
> Thanks,
> Jon
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