Merge patch series "jbd2: two straightforward fixes"

Two simple fixes for jdb2.

* patches from https://lore.kernel.org/r/[email protected]:
  jbd2: flush filesystem device before updating tail sequence
  jbd2: increase IO priority for writing revoke records

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Christian Brauner <[email protected]>

Author: brauner

fs/jbd2/commit.c

@@ -772,9 +772,9 @@ void jbd2_journal_commit_transaction(journal_t *journal)
 	/*
 	 * If the journal is not located on the file system device,
 	 * then we must flush the file system device before we issue
-	 * the commit record
+	 * the commit record and update the journal tail sequence.
 	 */
-	if (commit_transaction->t_need_data_flush &&
+	if ((commit_transaction->t_need_data_flush || update_tail) &&
 	    (journal->j_fs_dev != journal->j_dev) &&
 	    (journal->j_flags & JBD2_BARRIER))
 		blkdev_issue_flush(journal->j_fs_dev);

fs/jbd2/revoke.c

@@ -654,7 +654,7 @@ static void flush_descriptor(journal_t *journal,
 	set_buffer_jwrite(descriptor);
 	BUFFER_TRACE(descriptor, "write");
 	set_buffer_dirty(descriptor);
-	write_dirty_buffer(descriptor, REQ_SYNC);
+	write_dirty_buffer(descriptor, JBD2_JOURNAL_REQ_FLAGS);
 }
 #endif