Techniques for efficient user log flushing with shortcut logical address binding and postponing mapping information updates

A system comprising:

• one or more processors;
• and
• a memory comprising code stored thereon that, when executed, performs a method comprising:
• receiving a write operation that writes first data to a first logical address;
• storing a first entry for the write operation in a user data log of client updates;
• subsequent to said storing the first entry in the user data log, flushing the first entry from the user data log of client updates, wherein said flushing the first entry from the user data log includes:
• storing a first metadata log entry in a metadata log, wherein the metadata log and the user data log are two separate logs, wherein the first metadata log entry represents a binding of the first logical address to a first data block including the first data stored at the first logical address;
• and
• destaging the first metadata log entry from the metadata log, wherein said destaging the first metadata log entry includes:
• updating mapping information used to map the first logical address to the first data block, wherein the mapping information includes a first metadata page and said updating updates the first metadata page in accordance with the first metadata log entry.

A non-transitory computer readable medium comprising code stored thereon that, when executed, performs a method comprising:

• receiving a write operation that writes first data to a first logical address;
• storing a first entry for the write operation in a user data log of client updates;
• subsequent to said storing the first entry in the user data log, flushing the first entry from the user data log of client updates, wherein said flushing the first entry from the user data log includes:
• storing a first metadata log entry in a metadata log, wherein the metadata log and the user data log are two separate logs, wherein the first metadata log entry represents a binding of the first logical address to a first data block including the first data stored at the first logical address;
• and
• destaging the first metadata log entry from the metadata log, wherein said destaging the first metadata log entry includes:
• updating mapping information used to map the first logical address to the first data block, wherein the mapping information includes a first metadata page and said updating updates the first metadata page in accordance with the first metadata log entry.