From: Yongqiang Yang Date: Wed, 28 Dec 2011 22:46:46 +0000 (-0500) Subject: jbd2: clear revoked flag on buffers before a new transaction started X-Git-Tag: v3.3-rc1~114^2^2~23 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ba37268cd19e5a2a80924bfe8618bf1ba3e8249;p=pandora-kernel.git jbd2: clear revoked flag on buffers before a new transaction started Currently, we clear revoked flag only when a block is reused. However, this can tigger a false journal error. Consider a situation when a block is used as a meta block and is deleted(revoked) in ordered mode, then the block is allocated as a data block to a file. At this moment, user changes the file's journal mode from ordered to journaled and truncates the file. The block will be considered re-revoked by journal because it has revoked flag still pending from the last transaction and an assertion triggers. We fix the problem by keeping the revoked status more uptodate - we clear revoked flag when switching revoke tables to reflect there is no revoked buffers in current transaction any more. Signed-off-by: Yongqiang Yang Signed-off-by: "Theodore Ts'o" --- Reading git-diff-tree failed