[Linux-cluster] error: 'struct inode' has no member named 'i_mutex'

[Wendy Cheng]

David Siroky wrote:

>Hi!
>
>I tried to compile the cluster 1.02 against debian kernel 2.6.15
>
>./configure --kernel_src=/usr/src/linux-source-2.6.15
>make install
>
>but the compilation fails:
>
>....
>/usr/src/cluster-1.02.00/gfs-kernel/src/gfs/ops_file.c: In function
>'gfs_write':
>/usr/src/cluster-1.02.00/gfs-kernel/src/gfs/ops_file.c:955: warning:
>implicit declaration of function 'mutex_lock'
>/usr/src/cluster-1.02.00/gfs-kernel/src/gfs/ops_file.c:955: error:
>'struct inode' has no member named 'i_mutex'
>/usr/src/cluster-1.02.00/gfs-kernel/src/gfs/ops_file.c:960: warning:
>implicit declaration of function 'mutex_unlock'
>/usr/src/cluster-1.02.00/gfs-kernel/src/gfs/ops_file.c:960: error:
>'struct inode' has no member named 'i_mutex'
>make[5]: *** [/usr/src/cluster-1.02.00/gfs-kernel/src/gfs/ops_file.o]
>Error 1
>make[4]: *** [_module_/usr/src/cluster-1.02.00/gfs-kernel/src/gfs] Error
>2
>make[4]: Leaving directory `/usr/src/linux-source-2.6.15'
>make[3]: *** [all] Error 2
>make[3]: Leaving directory `/usr/src/cluster-1.02.00/gfs-kernel/src/gfs'
>...
>
>What em I doing wrong?
>  
>

This is why we've been very careful about RHEL updates (in order to 
provide stable external interfaces and environment for users and 
customers).

Sometime after 2.6.15 kernel, the i_sem  semaphore within VFS layer's 
struct inode was changed to i_mutext in community versions of kernels. 
GFS had to comply to this change for non-RHEL based CVS branches.  In 
short, you have to pick up newer versions of kernel from your 
distributor that contains this VFS layer changes.

-- Wendy