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>

2 files changed, 2 insertions, 2 deletions

diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 06fe11e0abfa..aab8549591e7 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -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",
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 19d74d86d99c..415041c4c40c 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -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",