[PATCH 3.16 087/217] jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path

3.16.35-rc1 review patch. If anyone has any objections, please let me know. -- From: OGAWA Hirofumi commit c0a2ad9b50dd80eeccd73d9ff962234590d5ec93 upstream. On umount path, jbd2_journal_destroy() writes latest transaction ID (->j_tail_sequence)

[PATCH 3.16 087/217] jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path

3.16.35-rc1 review patch. If anyone has any objections, please let me know. -- From: OGAWA Hirofumi commit c0a2ad9b50dd80eeccd73d9ff962234590d5ec93 upstream. On umount path, jbd2_journal_destroy() writes latest transaction ID (->j_tail_sequence) to be used at next mount. The