gfs2: Fix error exit in do_xmote
Before this patch, if an error was detected from glock function go_sync by function do_xmote, it would return. But the function had temporarily unlocked the gl_lockref spin_lock, and it never re-locked it. When the caller of do_xmote tried to unlock it again, it was already unlocked, which resulted in a corrupted spin_lock value. This patch makes sure the gl_lockref spin_lock is re-locked after it is unlocked. Thanks to Wu Bo <wubo40@huawei.com> for reporting this problem. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
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@ -613,7 +613,7 @@ __acquires(&gl->gl_lockref.lock)
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fs_err(sdp, "Error %d syncing glock \n", ret);
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gfs2_dump_glock(NULL, gl, true);
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}
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return;
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goto out;
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}
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}
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if (test_bit(GLF_INVALIDATE_IN_PROGRESS, &gl->gl_flags)) {
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