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Commit a49058fa authored Sep 04, 2014 by Gioh Kim Committed by Theodore Ts'o Sep 04, 2014

jbd/jbd2: use non-movable memory for the jbd superblock



Sicne the jbd/jbd2 superblock is not released until the file system is
unmounted, allocate the buffer cache from the non-moveable area to
allow page migration and CMA allocations to more easily succeed.

Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>

parent a8ac900b

fs/jbd/journal.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -886,7 +886,7 @@ journal_t * journal_init_inode (struct inode *inode)
		goto out_err;
		}

		bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
		bh = getblk_unmovable(journal->j_dev, blocknr, journal->j_blocksize);
		if (!bh) {
		printk(KERN_ERR
		"%s: Cannot get buffer for journal superblock\n",

fs/jbd2/journal.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1237,7 +1237,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode)
		goto out_err;
		}

		bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
		bh = getblk_unmovable(journal->j_dev, blocknr, journal->j_blocksize);
		if (!bh) {
		printk(KERN_ERR
		"%s: Cannot get buffer for journal superblock\n",