• Bob Peterson's avatar
    gfs2: Eliminate gl_vm · 23cfb0c3
    Bob Peterson authored
    The gfs2_glock structure has a gl_vm member, introduced in commit 7005c3e4
    ("GFS2: Use range based functions for rgrp sync/invalidation"), which stores
    the location of resource groups within their address space.  This structure is
    in a union with iopen glock specific fields.  It was introduced because at
    unmount time, the resource group objects were destroyed before flushing out any
    pending resource group glock work, and flushing out such work could require
    flushing / truncating the address space.
    
    Since commit b3422cac ("gfs2: Rework how rgrp buffer_heads are managed"),
    any pending resource group glock work is flushed out before destroying the
    resource group objects.  So the resource group objects will now always exist in
    rgrp_go_sync and rgrp_go_inval, and we now simply compute the gl_vm values
    where needed instead of caching them.  This also eliminates the union.
    Signed-off-by: default avatarBob Peterson <rpeterso@redhat.com>
    Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
    23cfb0c3
incore.h 23.8 KB