MDEV-23399 fixup for MDEV-10814
buf_madvise_do_dump(): Fix a mutex release that was broken in commit 7cffb5f6e8a231a041152447be8980ce35d2c9b8. This function is not covered by any tests. Its only purpose is to be called from a debugger so that buffers that would normally be excluded from core dumps ever since commit b600f30786816e33c1706dd36cdabf21034dc781 can be included.
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@ -1021,7 +1021,7 @@ buf_madvise_do_dump()
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ret+= madvise(chunk->mem, chunk->mem_size(), MADV_DODUMP);
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}
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mysql_mutex_lock(&buf_pool.mutex);
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mysql_mutex_unlock(&buf_pool.mutex);
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return ret;
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}
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#endif
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