From: Yongqiang Yang Date: Sat, 19 Nov 2011 09:34:29 +0000 (+0800) Subject: jbd: clear revoked flag on buffers before a new transaction started X-Git-Tag: v3.3-rc1~149^2~14 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c111b3f56332a216b18cd57950bdf04ac8f2a98;p=pandora-kernel.git jbd: 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: Jan Kara --- Reading git-diff-tree failed