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| author | Harshad Shirwadkar <harshadshirwadkar@gmail.com> | 2020-10-15 23:37:59 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-10-22 06:22:38 +0300 |
| commit | 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 (patch) | |
| tree | d34436d4b4826d877360171d7ab89945dc13a90f /include | |
| parent | 5b849b5f96b47d82b5a432d8b91a8ad260e1de46 (diff) | |
| download | linux-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.h | 56 |
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), |