author: Harshad Shirwadkar <harshadshirwadkar@gmail.com> 2020-11-05 19:58:55 -0800
committer: Theodore Ts'o <tytso@mit.edu> 2020-11-06 23:01:03 -0500
commit: a1e5e465b31d6015fccb359d99053b39e5180466
parent: ede7dc7fa0af619afc08995776eadb9ff3b0a711
Commit Summary:
Diffstat:
3 files changed, 8 insertions, 17 deletions
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 9399e9cccb7e..bab60c5d5095 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -2091,8 +2091,6 @@ static int ext4_fc_replay(journal_t *journal, struct buffer_head *bh,
void ext4_fc_init(struct super_block *sb, journal_t *journal)
{
- int num_fc_blocks;
-
/*
* We set replay callback even if fast commit disabled because we may
* could still have fast commit blocks that need to be replayed even if
@@ -2102,18 +2100,6 @@ void ext4_fc_init(struct super_block *sb, journal_t *journal)
if (!test_opt2(sb, JOURNAL_FAST_COMMIT))
return;
journal->j_fc_cleanup_callback = ext4_fc_cleanup;
- if (!buffer_uptodate(journal->j_sb_buffer)
- && ext4_read_bh_lock(journal->j_sb_buffer, REQ_META | REQ_PRIO,
- true)) {
- ext4_msg(sb, KERN_ERR, "I/O error on journal");
- return;
- }
- num_fc_blocks = be32_to_cpu(journal->j_superblock->s_num_fc_blks);
- if (jbd2_fc_init(journal, num_fc_blocks ? num_fc_blocks :
- EXT4_NUM_FC_BLKS)) {
- pr_warn("Error while enabling fast commits, turning off.");
- ext4_clear_feature_fast_commit(sb);
- }
}
const char *fc_ineligible_reasons[] = {
diff --git a/fs/ext4/fast_commit.h b/fs/ext4/fast_commit.h
index 140fbb6af19e..1d96e0ac8138 100644
--- a/fs/ext4/fast_commit.h
+++ b/fs/ext4/fast_commit.h
@@ -3,9 +3,6 @@
#ifndef __FAST_COMMIT_H__
#define __FAST_COMMIT_H__
-/* Number of blocks in journal area to allocate for fast commits */
-#define EXT4_NUM_FC_BLKS 256
-
/* Fast commit tags */
#define EXT4_FC_TAG_ADD_RANGE 0x0001
#define EXT4_FC_TAG_DEL_RANGE 0x0002
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 8a6dd433bb70..ba02d7c86fb3 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4857,6 +4857,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount_wq;
}
+ if (test_opt2(sb, JOURNAL_FAST_COMMIT) &&
+ !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0,
+ JBD2_FEATURE_INCOMPAT_FAST_COMMIT)) {
+ ext4_msg(sb, KERN_ERR,
+ "Failed to set fast commit journal feature");
+ goto failed_mount_wq;
+ }
+
/* We have now updated the journal if required, so we can
* validate the data journaling mode. */
switch (test_opt(sb, DATA_FLAGS)) {