Re: filesystem transactions API

From: Artem B. Bityuckiy
Date: Tue Apr 26 2005 - 11:19:48 EST


Charles P. Wright wrote:
Atomicity is difficult, because you have lots of caches each with their
own bits of state (e.g., the inode/dentry caches). Assuming your
transaction is committed that isn't so much of a problem, but once you
have on rollback you need to undo any changes to those caches.
I guess if you do synchronization before unlocking all is OK. Roll-back means deleting partially written things and restore old things, then run fsyncs. Whys this may be not enough?

--
Best regards, Artem B. Bityuckiy
Oktet Labs (St. Petersburg), Software Engineer.
+78124286709 (office) +79112449030 (mobile)
E-mail: dedekind@xxxxxxxxxxxx, web: http://www.oktetlabs.ru
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