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authorHarshad Shirwadkar <harshadshirwadkar@gmail.com>2020-10-15 23:37:59 +0300
committerTheodore Ts'o <tytso@mit.edu>2020-10-22 06:22:38 +0300
commit8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 (patch)
treed34436d4b4826d877360171d7ab89945dc13a90f /include
parent5b849b5f96b47d82b5a432d8b91a8ad260e1de46 (diff)
downloadlinux-8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2.tar.xz
ext4: fast commit recovery path
This patch adds fast commit recovery path support for Ext4 file system. We add several helper functions that are similar in spirit to e2fsprogs journal recovery path handlers. Example of such functions include - a simple block allocator, idempotent block bitmap update function etc. Using these routines and the fast commit log in the fast commit area, the recovery path (ext4_fc_replay()) performs fast commit log recovery. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com> Link: https://lore.kernel.org/r/20201015203802.3597742-8-harshadshirwadkar@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include')
-rw-r--r--include/trace/events/ext4.h56
1 files changed, 52 insertions, 4 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 521de3a82118..b14314fcf732 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -1776,9 +1776,9 @@ TRACE_EVENT(ext4_ext_load_extent,
);
TRACE_EVENT(ext4_load_inode,
- TP_PROTO(struct inode *inode),
+ TP_PROTO(struct super_block *sb, unsigned long ino),
- TP_ARGS(inode),
+ TP_ARGS(sb, ino),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -1786,8 +1786,8 @@ TRACE_EVENT(ext4_load_inode,
),
TP_fast_assign(
- __entry->dev = inode->i_sb->s_dev;
- __entry->ino = inode->i_ino;
+ __entry->dev = sb->s_dev;
+ __entry->ino = ino;
),
TP_printk("dev %d,%d ino %ld",
@@ -2801,6 +2801,54 @@ TRACE_EVENT(ext4_lazy_itable_init,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->group)
);
+TRACE_EVENT(ext4_fc_replay_scan,
+ TP_PROTO(struct super_block *sb, int error, int off),
+
+ TP_ARGS(sb, error, off),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, error)
+ __field(int, off)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->error = error;
+ __entry->off = off;
+ ),
+
+ TP_printk("FC scan pass on dev %d,%d: error %d, off %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->error, __entry->off)
+);
+
+TRACE_EVENT(ext4_fc_replay,
+ TP_PROTO(struct super_block *sb, int tag, int ino, int priv1, int priv2),
+
+ TP_ARGS(sb, tag, ino, priv1, priv2),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, tag)
+ __field(int, ino)
+ __field(int, priv1)
+ __field(int, priv2)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->tag = tag;
+ __entry->ino = ino;
+ __entry->priv1 = priv1;
+ __entry->priv2 = priv2;
+ ),
+
+ TP_printk("FC Replay %d,%d: tag %d, ino %d, data1 %d, data2 %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->tag, __entry->ino, __entry->priv1, __entry->priv2)
+);
+
TRACE_EVENT(ext4_fc_commit_start,
TP_PROTO(struct super_block *sb),