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LU-13799 lov: Cache stripe offset calculation
[fs/lustre-release.git]
/
lustre
/
lov
/
lov_cl_internal.h
diff --git
a/lustre/lov/lov_cl_internal.h
b/lustre/lov/lov_cl_internal.h
index
40a5836
..
9563315
100644
(file)
--- a/
lustre/lov/lov_cl_internal.h
+++ b/
lustre/lov/lov_cl_internal.h
@@
-450,8
+450,6
@@
struct lov_lock {
struct lov_page {
struct cl_page_slice lps_cl;
struct lov_page {
struct cl_page_slice lps_cl;
- /* the layout gen when this page was created */
- __u32 lps_layout_gen;
};
/*
};
/*
@@
-521,6
+519,7
@@
struct lov_io_sub {
/**
* IO state private for LOV.
*/
/**
* IO state private for LOV.
*/
+#define LIS_CACHE_ENTRY_NONE -ENOENT
struct lov_io {
/** super-class */
struct cl_io_slice lis_cl;
struct lov_io {
/** super-class */
struct cl_io_slice lis_cl;
@@
-586,7
+585,12
@@
struct lov_io {
* All sub-io's created in this lov_io.
*/
struct list_head lis_subios;
* All sub-io's created in this lov_io.
*/
struct list_head lis_subios;
-
+ /* Cached results from stripe & offset calculations for page init */
+ int lis_cached_entry;
+ int lis_cached_stripe;
+ loff_t lis_cached_off;
+ loff_t lis_cached_suboff;
+ struct lov_io_sub *lis_cached_sub;
};
struct lov_session {
};
struct lov_session {