A long-lasting buffer-cache can distrub page migration so that
it must be allocated from non-movable area.
The journal_init_inode is creating a buffer-cache for superblock journaling.
The superblock exists until system shutdown so that the buffer-cache
for the superblock would also exist for a long time
and it can distrub page migration.
This patch make the buffer-cache be allocated from non-movable area
not to distrub page migration.
Signed-off-by: Gioh Kim <gioh.kim@xxxxxxx>
---
fs/jbd/journal.c | 2 +-
fs/jbd2/journal.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 06fe11e..2ed8aa2 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_nonmovable(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 67b8e30..a618e49 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_nonmovable(journal->j_dev, blocknr, journal->j_blocksize);
if (!bh) {
printk(KERN_ERR
"%s: Cannot get buffer for journal superblock\n",
--
1.7.9.5
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