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authorSunil Mushran <sunil.mushran@oracle.com>2009-02-03 15:37:16 -0500
committerMark Fasheh <mfasheh@suse.com>2009-02-26 14:51:11 -0500
commit53ecd25e148615e0ed2a72635cc76f4773f97f90 (patch)
treead4f26d160889792c72199678634b4132c5ce1d7 /fs/ocfs2
parentdabc47de7a23f57522dc762d9d2ad875700d3497 (diff)
ocfs2/dlm: Make dlm_assert_master_handler() kill itself instead of the asserter
In dlm_assert_master_handler(), if we get an incorrect assert master from a node that, we reply with EINVAL asking the asserter to die. The problem is that an assert is sent after so many hoops, it is invariably the node that thinks the asserter is wrong, is actually wrong. So instead of killing the asserter, this patch kills the assertee. This patch papers over a race that is still being addressed. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 54e182a27caf..0a2813947853 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1849,12 +1849,12 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data,
1849 if (!mle) { 1849 if (!mle) {
1850 if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN && 1850 if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN &&
1851 res->owner != assert->node_idx) { 1851 res->owner != assert->node_idx) {
1852 mlog(ML_ERROR, "assert_master from " 1852 mlog(ML_ERROR, "DIE! Mastery assert from %u, "
1853 "%u, but current owner is " 1853 "but current owner is %u! (%.*s)\n",
1854 "%u! (%.*s)\n", 1854 assert->node_idx, res->owner, namelen,
1855 assert->node_idx, res->owner, 1855 name);
1856 namelen, name); 1856 __dlm_print_one_lock_resource(res);
1857 goto kill; 1857 BUG();
1858 } 1858 }
1859 } else if (mle->type != DLM_MLE_MIGRATION) { 1859 } else if (mle->type != DLM_MLE_MIGRATION) {
1860 if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN) { 1860 if (res->owner != DLM_LOCK_RES_OWNER_UNKNOWN) {