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Date: Tue, 4 May 2021 16:35:48 +0000
From: Leah Rumancik <leah.rumancik@...il.com>
To: linux-ext4@...r.kernel.org
Cc: tytso@....edu, Leah Rumancik <leah.rumancik@...il.com>
Subject: [PATCH v3 1/3] ext4: add flags argument to jbd2_journal_flush
This patch will allow the following commit to pass a discard flag,
enabling discarding the journal blocks while flushing the journal.
Signed-off-by: Leah Rumancik <leah.rumancik@...il.com>
---
fs/ext4/inode.c | 4 ++--
fs/ext4/ioctl.c | 6 +++---
fs/ext4/super.c | 6 +++---
fs/jbd2/journal.c | 3 +--
fs/ocfs2/alloc.c | 2 +-
fs/ocfs2/journal.c | 8 ++++----
include/linux/jbd2.h | 2 +-
7 files changed, 15 insertions(+), 16 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0948a43f1b3d..d308c57559e3 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3225,7 +3225,7 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
ext4_clear_inode_state(inode, EXT4_STATE_JDATA);
journal = EXT4_JOURNAL(inode);
jbd2_journal_lock_updates(journal);
- err = jbd2_journal_flush(journal);
+ err = jbd2_journal_flush(journal, false);
jbd2_journal_unlock_updates(journal);
if (err)
@@ -6007,7 +6007,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
if (val)
ext4_set_inode_flag(inode, EXT4_INODE_JOURNAL_DATA);
else {
- err = jbd2_journal_flush(journal);
+ err = jbd2_journal_flush(journal, false);
if (err < 0) {
jbd2_journal_unlock_updates(journal);
percpu_up_write(&sbi->s_writepages_rwsem);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index e9b0a1fa2ba8..ef809feb7e77 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -701,7 +701,7 @@ static long ext4_ioctl_group_add(struct file *file,
err = ext4_group_add(sb, input);
if (EXT4_SB(sb)->s_journal) {
jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal, false);
jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
}
if (err == 0)
@@ -879,7 +879,7 @@ static long __ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count);
if (EXT4_SB(sb)->s_journal) {
jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal, false);
jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
}
if (err == 0)
@@ -1022,7 +1022,7 @@ static long __ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
if (EXT4_SB(sb)->s_journal) {
ext4_fc_mark_ineligible(sb, EXT4_FC_REASON_RESIZE);
jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal, false);
jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
}
if (err == 0)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 3868377dec2d..449ed222cdf8 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5613,7 +5613,7 @@ static int ext4_mark_recovery_complete(struct super_block *sb,
return 0;
}
jbd2_journal_lock_updates(journal);
- err = jbd2_journal_flush(journal);
+ err = jbd2_journal_flush(journal, false);
if (err < 0)
goto out;
@@ -5755,7 +5755,7 @@ static int ext4_freeze(struct super_block *sb)
* Don't clear the needs_recovery flag if we failed to
* flush the journal.
*/
- error = jbd2_journal_flush(journal);
+ error = jbd2_journal_flush(journal, false);
if (error < 0)
goto out;
@@ -6346,7 +6346,7 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
* otherwise be livelocked...
*/
jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ err = jbd2_journal_flush(EXT4_SB(sb)->s_journal, false);
jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
if (err)
return err;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 2dc944442802..4b7953934c82 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2251,8 +2251,7 @@ EXPORT_SYMBOL(jbd2_journal_clear_features);
* Filesystems can use this when remounting readonly to ensure that
* recovery does not need to happen on remount.
*/
-
-int jbd2_journal_flush(journal_t *journal)
+int jbd2_journal_flush(journal_t *journal, bool discard)
{
int err = 0;
transaction_t *transaction = NULL;
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 78710788c237..5ff2c42cb46c 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6020,7 +6020,7 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
* Then truncate log will be replayed resulting in cluster double free.
*/
jbd2_journal_lock_updates(journal->j_journal);
- status = jbd2_journal_flush(journal->j_journal);
+ status = jbd2_journal_flush(journal->j_journal, false);
jbd2_journal_unlock_updates(journal->j_journal);
if (status < 0) {
mlog_errno(status);
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index db52e843002a..1c356b29c66d 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -310,7 +310,7 @@ static int ocfs2_commit_cache(struct ocfs2_super *osb)
}
jbd2_journal_lock_updates(journal->j_journal);
- status = jbd2_journal_flush(journal->j_journal);
+ status = jbd2_journal_flush(journal->j_journal, false);
jbd2_journal_unlock_updates(journal->j_journal);
if (status < 0) {
up_write(&journal->j_trans_barrier);
@@ -1002,7 +1002,7 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
if (ocfs2_mount_local(osb)) {
jbd2_journal_lock_updates(journal->j_journal);
- status = jbd2_journal_flush(journal->j_journal);
+ status = jbd2_journal_flush(journal->j_journal, false);
jbd2_journal_unlock_updates(journal->j_journal);
if (status < 0)
mlog_errno(status);
@@ -1072,7 +1072,7 @@ int ocfs2_journal_load(struct ocfs2_journal *journal, int local, int replayed)
if (replayed) {
jbd2_journal_lock_updates(journal->j_journal);
- status = jbd2_journal_flush(journal->j_journal);
+ status = jbd2_journal_flush(journal->j_journal, false);
jbd2_journal_unlock_updates(journal->j_journal);
if (status < 0)
mlog_errno(status);
@@ -1668,7 +1668,7 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
/* wipe the journal */
jbd2_journal_lock_updates(journal);
- status = jbd2_journal_flush(journal);
+ status = jbd2_journal_flush(journal, false);
jbd2_journal_unlock_updates(journal);
if (status < 0)
mlog_errno(status);
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 99d3cd051ac3..5e4349b76997 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1491,7 +1491,7 @@ extern int jbd2_journal_invalidatepage(journal_t *,
struct page *, unsigned int, unsigned int);
extern int jbd2_journal_try_to_free_buffers(journal_t *journal, struct page *page);
extern int jbd2_journal_stop(handle_t *);
-extern int jbd2_journal_flush (journal_t *);
+extern int jbd2_journal_flush(journal_t *journal, bool discard);
extern void jbd2_journal_lock_updates (journal_t *);
extern void jbd2_journal_unlock_updates (journal_t *);
--
2.31.1.527.g47e6f16901-goog
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