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gfs2: Register fs after creating workqueues

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Before this patch, the gfs2 file system was registered prior to creating
the three workqueues. In some cases this allowed dlm to send recovery
work to a workqueue that did not yet exist because gfs2 was still
initializing.

This patch changes the order of gfs2's initialization routine so it only
registers the file system after the work queues are created.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Bob Peterson 2022-08-30 13:52:13 -05:00 committed by Andreas Gruenbacher
parent 670f8ce56d
commit 74b1b10e29
1 changed files with 12 additions and 12 deletions
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24
fs/gfs2/main.c
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@ -151,14 +151,6 @@ static int __init init_gfs2_fs(void)
if (error)
goto fail_shrinker;
error = register_filesystem(&gfs2_fs_type);
if (error)
goto fail_fs1;
error = register_filesystem(&gfs2meta_fs_type);
if (error)
goto fail_fs2;
error = -ENOMEM;
gfs_recovery_wq = alloc_workqueue("gfs_recovery",
WQ_MEM_RECLAIM | WQ_FREEZABLE, 0);
@ -180,11 +172,23 @@ static int __init init_gfs2_fs(void)
goto fail_mempool;
gfs2_register_debugfs();
error = register_filesystem(&gfs2_fs_type);
if (error)
goto fail_fs1;
error = register_filesystem(&gfs2meta_fs_type);
if (error)
goto fail_fs2;
pr_info("GFS2 installed\n");
return 0;
fail_fs2:
unregister_filesystem(&gfs2_fs_type);
fail_fs1:
mempool_destroy(gfs2_page_pool);
fail_mempool:
destroy_workqueue(gfs2_freeze_wq);
fail_wq3:
@ -192,10 +196,6 @@ fail_wq3:
fail_wq2:
destroy_workqueue(gfs_recovery_wq);
fail_wq1:
unregister_filesystem(&gfs2meta_fs_type);
fail_fs2:
unregister_filesystem(&gfs2_fs_type);
fail_fs1:
unregister_shrinker(&gfs2_qd_shrinker);
fail_shrinker:
kmem_cache_destroy(gfs2_trans_cachep);