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| author |   Paul Durrant <pdurrant@amazon.com> | 2019-12-10 14:53:05 +0000 |
|---|---|---|
| committer |   Juergen Gross <jgross@suse.com> | 2019-12-13 08:34:06 +0100 |
| commit | fa2ac657f9783f0891b2935490afe9a7fd29d3fa (patch) | |
| tree | 0aa8c9c49904c2b31db2d5e05f5e29cdb2b80779 /drivers/xen | |
| parent | xen-blkback: allow module to be cleanly unloaded (diff) | |
| download | linux-dev-fa2ac657f9783f0891b2935490afe9a7fd29d3fa.tar.xz linux-dev-fa2ac657f9783f0891b2935490afe9a7fd29d3fa.zip | |
xen-blkback: prevent premature module unload
Objects allocated by xen_blkif_alloc come from the 'blkif_cache' kmem
cache. This cache is destoyed when xen-blkif is unloaded so it is
necessary to wait for the deferred free routine used for such objects to
complete. This necessity was missed in commit 14855954f636 "xen-blkback:
allow module to be cleanly unloaded". This patch fixes the problem by
taking/releasing extra module references in xen_blkif_alloc/free()
respectively.
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen')
0 files changed, 0 insertions, 0 deletions