[PATCH v3 09/12] jbd2: Switch jbd2_submit_inode_data() to use fs-provided hook for data writeout

Jan Kara
2022-12-05T12:29:40Z

jbd2_submit_inode_data() hardcoded use of
jbd2_journal_submit_inode_data_buffers() for submission of data pages.
Make it use j_submit_inode_data_buffers hook instead. This effectively
switches ext4 fastcommits to use ext4_writepages() for data writeout
instead of generic_writepages().

Signed-off-by: Jan Kara <jack@suse.cz>
---
fs/ext4/fast_commit.c | 2 +-
fs/jbd2/commit.c | 5 ++---
include/linux/jbd2.h | 2 +-
3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 0f6d0a80467d..7c6694593497 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -986,7 +986,7 @@ static int ext4_fc_submit_inode_data_all(journal_t *journal)
finish_wait(&ei->i_fc_wait, &wait);
}
spin_unlock(&sbi->s_fc_lock);
- ret = jbd2_submit_inode_data(ei->jinode);
+ ret = jbd2_submit_inode_data(journal, ei->jinode);
if (ret)
return ret;
spin_lock(&sbi->s_fc_lock);
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 885a7a6cc53e..4810438b7856 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -207,14 +207,13 @@ int jbd2_journal_submit_inode_data_buffers(struct jbd2_inode *jinode)
}

/* Send all the data buffers related to an inode */
-int jbd2_submit_inode_data(struct jbd2_inode *jinode)
+int jbd2_submit_inode_data(journal_t *journal, struct jbd2_inode *jinode)
{
-
if (!jinode || !(jinode->i_flags & JI_WRITE_DATA))
return 0;

trace_jbd2_submit_inode_data(jinode->i_vfs_inode);
- return jbd2_journal_submit_inode_data_buffers(jinode);
+ return journal->j_submit_inode_data_buffers(jinode);

}
EXPORT_SYMBOL(jbd2_submit_inode_data);
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 0b7242370b56..2170e0cc279d 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1662,7 +1662,7 @@ int jbd2_fc_begin_commit(journal_t *journal, tid_t tid);
int jbd2_fc_end_commit(journal_t *journal);
int jbd2_fc_end_commit_fallback(journal_t *journal);
int jbd2_fc_get_buf(journal_t *journal, struct buffer_head **bh_out);
-int jbd2_submit_inode_data(struct jbd2_inode *jinode);
+int jbd2_submit_inode_data(journal_t *journal, struct jbd2_inode *jinode);
int jbd2_wait_inode_data(journal_t *journal, struct jbd2_inode *jinode);
int jbd2_fc_wait_bufs(journal_t *journal, int num_blks);
int jbd2_fc_release_bufs(journal_t *journal);
--
2.35.3