diff options
| author | Zhan Xusheng <zhanxusheng@xiaomi.com> | 2026-06-17 15:43:34 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2026-06-18 16:19:33 +0800 |
| commit | 28c5d230980bdd8cb18c073225296c7747995935 (patch) | |
| tree | 98ef88c56a7302dc8ea66164a695d2061df15c60 /include | |
| parent | 99980e9a7eca5ba3f4a2892acb0ccdcc7fe1dd8f (diff) | |
| download | ath-28c5d230980bdd8cb18c073225296c7747995935.tar.gz | |
erofs: add folio order to trace_erofs_read_folio
erofs supports large folios for reads, but the actual folio order
instantiated in the page cache may be lower due to allocation
constraints such as memory fragmentation.
trace_erofs_read_folio already receives the folio being read but
currently records only its index. Add folio_order() to the tracepoint
so that users can observe the realized folio order and verify the
effectiveness of large folio reads.
Also drop the uptodate field: read_folio() is only called for a
non-uptodate folio, so it is always 0.
Suggested-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Zhan Xusheng <zhanxusheng@xiaomi.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/trace/events/erofs.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/include/trace/events/erofs.h b/include/trace/events/erofs.h index cd0e3fd8c23f1..0a178cb10fb1e 100644 --- a/include/trace/events/erofs.h +++ b/include/trace/events/erofs.h @@ -90,7 +90,7 @@ TRACE_EVENT(erofs_read_folio, __field(erofs_nid_t, nid ) __field(int, dir ) __field(pgoff_t, index ) - __field(int, uptodate) + __field(unsigned int, order ) __field(bool, raw ) ), @@ -99,16 +99,15 @@ TRACE_EVENT(erofs_read_folio, __entry->nid = EROFS_I(inode)->nid; __entry->dir = S_ISDIR(inode->i_mode); __entry->index = folio->index; - __entry->uptodate = folio_test_uptodate(folio); + __entry->order = folio_order(folio); __entry->raw = raw; ), - TP_printk("dev = (%d,%d), nid = %llu, %s, index = %lu, uptodate = %d " - "raw = %d", + TP_printk("dev = (%d,%d), nid = %llu, %s, index = %lu, order = %u, raw = %d", show_dev_nid(__entry), show_file_type(__entry->dir), (unsigned long)__entry->index, - __entry->uptodate, + __entry->order, __entry->raw) ); |