Re: [Ext2-devel] Re: [CHECKER] crash after fsync causing serious FScorruptions (ext2, 2.6.11)

[Junfeng Yang]

Thanks a lot Andreas.  Your message clarifies everything.

> In ext3 this case is handled because the filesystem won't reallocate the
> metadata blocks freed from file A before they have been committed to disk.
> Also, the operations on file A are guaranteed to complete before or with
> operations on file B so fsync(B) will also cause the changes from A to
> be flushed to disk at the same time (this is guaranteed to complete before
> fsync(B) returns).

In order words, each fsync essentailly triggers a jbd commit, right?

-Junfeng

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