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Message-Id: <20201006004841.600488-2-mfo@canonical.com>
Date: Mon, 5 Oct 2020 21:48:38 -0300
From: Mauricio Faria de Oliveira <mfo@...onical.com>
To: linux-ext4@...r.kernel.org, ocfs2-devel@....oracle.com
Cc: Jan Kara <jack@...e.cz>, Andreas Dilger <adilger@...ger.ca>,
dann frazier <dann.frazier@...onical.com>,
Joseph Qi <joseph.qi@...ux.alibaba.com>
Subject: [PATCH v5 1/4] jbd2: introduce/export functions jbd2_journal_submit|finish_inode_data_buffers()
Export functions that implement the current behavior done
for an inode in journal_submit|finish_inode_data_buffers().
No functional change.
Signed-off-by: Mauricio Faria de Oliveira <mfo@...onical.com>
Suggested-by: Jan Kara <jack@...e.cz>
Reviewed-by: Jan Kara <jack@...e.cz>
Reviewed-by: Andreas Dilger <adilger@...ger.ca>
---
fs/jbd2/commit.c | 36 ++++++++++++++++--------------------
fs/jbd2/journal.c | 2 ++
include/linux/jbd2.h | 4 ++++
3 files changed, 22 insertions(+), 20 deletions(-)
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 6d2da8ad0e6f..f79b86b4241f 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -187,19 +187,17 @@ static int journal_wait_on_commit_record(journal_t *journal,
* use writepages() because with delayed allocation we may be doing
* block allocation in writepages().
*/
-static int journal_submit_inode_data_buffers(struct address_space *mapping,
- loff_t dirty_start, loff_t dirty_end)
+int jbd2_journal_submit_inode_data_buffers(struct jbd2_inode *jinode)
{
- int ret;
+ struct address_space *mapping = jinode->i_vfs_inode->i_mapping;
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = mapping->nrpages * 2,
- .range_start = dirty_start,
- .range_end = dirty_end,
+ .range_start = jinode->i_dirty_start,
+ .range_end = jinode->i_dirty_end,
};
- ret = generic_writepages(mapping, &wbc);
- return ret;
+ return generic_writepages(mapping, &wbc);
}
/*
@@ -215,16 +213,11 @@ static int journal_submit_data_buffers(journal_t *journal,
{
struct jbd2_inode *jinode;
int err, ret = 0;
- struct address_space *mapping;
spin_lock(&journal->j_list_lock);
list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
- loff_t dirty_start = jinode->i_dirty_start;
- loff_t dirty_end = jinode->i_dirty_end;
-
if (!(jinode->i_flags & JI_WRITE_DATA))
continue;
- mapping = jinode->i_vfs_inode->i_mapping;
jinode->i_flags |= JI_COMMIT_RUNNING;
spin_unlock(&journal->j_list_lock);
/*
@@ -234,8 +227,7 @@ static int journal_submit_data_buffers(journal_t *journal,
* only allocated blocks here.
*/
trace_jbd2_submit_inode_data(jinode->i_vfs_inode);
- err = journal_submit_inode_data_buffers(mapping, dirty_start,
- dirty_end);
+ err = jbd2_journal_submit_inode_data_buffers(jinode);
if (!ret)
ret = err;
spin_lock(&journal->j_list_lock);
@@ -248,6 +240,15 @@ static int journal_submit_data_buffers(journal_t *journal,
return ret;
}
+int jbd2_journal_finish_inode_data_buffers(struct jbd2_inode *jinode)
+{
+ struct address_space *mapping = jinode->i_vfs_inode->i_mapping;
+
+ return filemap_fdatawait_range_keep_errors(mapping,
+ jinode->i_dirty_start,
+ jinode->i_dirty_end);
+}
+
/*
* Wait for data submitted for writeout, refile inodes to proper
* transaction if needed.
@@ -262,16 +263,11 @@ static int journal_finish_inode_data_buffers(journal_t *journal,
/* For locking, see the comment in journal_submit_data_buffers() */
spin_lock(&journal->j_list_lock);
list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
- loff_t dirty_start = jinode->i_dirty_start;
- loff_t dirty_end = jinode->i_dirty_end;
-
if (!(jinode->i_flags & JI_WAIT_DATA))
continue;
jinode->i_flags |= JI_COMMIT_RUNNING;
spin_unlock(&journal->j_list_lock);
- err = filemap_fdatawait_range_keep_errors(
- jinode->i_vfs_inode->i_mapping, dirty_start,
- dirty_end);
+ err = jbd2_journal_finish_inode_data_buffers(jinode);
if (!ret)
ret = err;
spin_lock(&journal->j_list_lock);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 17fdc482f554..c0600405e7a2 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -91,6 +91,8 @@ EXPORT_SYMBOL(jbd2_journal_try_to_free_buffers);
EXPORT_SYMBOL(jbd2_journal_force_commit);
EXPORT_SYMBOL(jbd2_journal_inode_ranged_write);
EXPORT_SYMBOL(jbd2_journal_inode_ranged_wait);
+EXPORT_SYMBOL(jbd2_journal_submit_inode_data_buffers);
+EXPORT_SYMBOL(jbd2_journal_finish_inode_data_buffers);
EXPORT_SYMBOL(jbd2_journal_init_jbd_inode);
EXPORT_SYMBOL(jbd2_journal_release_jbd_inode);
EXPORT_SYMBOL(jbd2_journal_begin_ordered_truncate);
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 08f904943ab2..2865a5475888 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1421,6 +1421,10 @@ extern int jbd2_journal_inode_ranged_write(handle_t *handle,
extern int jbd2_journal_inode_ranged_wait(handle_t *handle,
struct jbd2_inode *inode, loff_t start_byte,
loff_t length);
+extern int jbd2_journal_submit_inode_data_buffers(
+ struct jbd2_inode *jinode);
+extern int jbd2_journal_finish_inode_data_buffers(
+ struct jbd2_inode *jinode);
extern int jbd2_journal_begin_ordered_truncate(journal_t *journal,
struct jbd2_inode *inode, loff_t new_size);
extern void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode);
--
2.17.1
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