Fast commits don't work with data journalling. This patch disables the
fast commit support when data journalling is turned on.
Suggested-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>
---
fs/ext4/fast_commit.c | 7 +++++++
fs/ext4/fast_commit.h | 1 +
fs/ext4/super.c | 3 ++-
include/trace/events/ext4.h | 6 ++++--
4 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 4c0a3e858ea3..9ae8ba213961 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -472,6 +472,12 @@ void ext4_fc_track_inode(handle_t *handle, struct inode *inode)
if (S_ISDIR(inode->i_mode))
return;
+ if (ext4_should_journal_data(inode)) {
+ ext4_fc_mark_ineligible(inode->i_sb,
+ EXT4_FC_REASON_INODE_JOURNAL_DATA);
+ return;
+ }
+
ret = ext4_fc_track_template(handle, inode, __track_inode, NULL, 1);
trace_ext4_fc_track_inode(inode, ret);
}
@@ -2095,6 +2101,7 @@ const char *fc_ineligible_reasons[] = {
"Resize",
"Dir renamed",
"Falloc range op",
+ "Data journalling",
"FC Commit Failed"
};
diff --git a/fs/ext4/fast_commit.h b/fs/ext4/fast_commit.h
index cde86747faf8..cdb36a10dfd0 100644
--- a/fs/ext4/fast_commit.h
+++ b/fs/ext4/fast_commit.h
@@ -105,6 +105,7 @@ enum {
EXT4_FC_REASON_RESIZE,
EXT4_FC_REASON_RENAME_DIR,
EXT4_FC_REASON_FALLOC_RANGE,
+ EXT4_FC_REASON_INODE_JOURNAL_DATA,
EXT4_FC_COMMIT_FAILED,
EXT4_FC_REASON_MAX
};
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e67d2fa41a78..9333475737ac 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4340,9 +4340,10 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
#endif
if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
- printk_once(KERN_WARNING "EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, and O_DIRECT support!\n");
+ printk_once(KERN_WARNING "EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support!\n");
/* can't mount with both data=journal and dioread_nolock. */
clear_opt(sb, DIOREAD_NOLOCK);
+ clear_opt2(sb, JOURNAL_FAST_COMMIT);
if (test_opt2(sb, EXPLICIT_DELALLOC)) {
ext4_msg(sb, KERN_ERR, "can't mount with "
"both data=journal and delalloc");
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 239e98014f9b..ee7362f31eb6 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -104,7 +104,8 @@ TRACE_DEFINE_ENUM(ES_REFERENCED_B);
{ EXT4_FC_REASON_SWAP_BOOT, "SWAP_BOOT"}, \
{ EXT4_FC_REASON_RESIZE, "RESIZE"}, \
{ EXT4_FC_REASON_RENAME_DIR, "RENAME_DIR"}, \
- { EXT4_FC_REASON_FALLOC_RANGE, "FALLOC_RANGE"})
+ { EXT4_FC_REASON_FALLOC_RANGE, "FALLOC_RANGE"}, \
+ { EXT4_FC_REASON_INODE_JOURNAL_DATA, "INODE_JOURNAL_DATA"})
TRACE_EVENT(ext4_other_inode_update_time,
TP_PROTO(struct inode *inode, ino_t orig_ino),
@@ -2917,7 +2918,7 @@ TRACE_EVENT(ext4_fc_stats,
),
TP_printk("dev %d:%d fc ineligible reasons:\n"
- "%s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d; "
+ "%s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d, %s:%d; "
"num_commits:%ld, ineligible: %ld, numblks: %ld",
MAJOR(__entry->dev), MINOR(__entry->dev),
FC_REASON_NAME_STAT(EXT4_FC_REASON_XATTR),
@@ -2928,6 +2929,7 @@ TRACE_EVENT(ext4_fc_stats,
FC_REASON_NAME_STAT(EXT4_FC_REASON_RESIZE),
FC_REASON_NAME_STAT(EXT4_FC_REASON_RENAME_DIR),
FC_REASON_NAME_STAT(EXT4_FC_REASON_FALLOC_RANGE),
+ FC_REASON_NAME_STAT(EXT4_FC_REASON_INODE_JOURNAL_DATA),
__entry->sbi->s_fc_stats.fc_num_commits,
__entry->sbi->s_fc_stats.fc_ineligible_commits,
__entry->sbi->s_fc_stats.fc_numblks)
--
2.29.1.341.ge80a0c044ae-goog
