Changeset bc3d695 in mainline for uspace/srv/bd/hr/var.h

Timestamp:

2025-01-05T18:22:28Z (4 months ago)

Author:

Miroslav Cimerman <mc@…>

Children:

7bf29e5

Parents:

40be7eb

Message:

hr: RAID0 parallelization

File:

• uspace/srv/bd/hr/var.h (modified) (5 diffs)

uspace/srv/bd/hr/var.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2024 Miroslav Cimerman
+ * Copyright (c) 2025 Miroslav Cimerman
  * All rights reserved.
  *
@@ -43 +43 @@
 #include <hr.h>
 
+#include "fge.h"
+
 #define NAME "hr"
 
@@ -60 +62 @@
         bd_srvs_t hr_bds;
 
-        link_t lvolumes;
+        link_t lvolumes; /* protected by static hr_volumes_lock in hr.c */
+
+        /*
+         * XXX: will be gone after all paralelization, but still used
+         * in yet-unparallelized levels
+         */
         fibril_mutex_t lock;
 
@@ -66 +73 @@
         fibril_mutex_t range_lock_list_lock;
 
+        hr_fpool_t *fge;
+
+        /* after assembly, these are invariant */
         size_t extent_no;
-        hr_extent_t extents[HR_MAX_EXTENTS];
-
-        size_t hotspare_no;
-        hr_extent_t hotspares[HR_MAX_HOTSPARES];
-
         size_t bsize;
         uint64_t nblocks;
@@ -77 +82 @@
         uint64_t data_offset; /* in blocks */
         uint32_t strip_size;
+        hr_level_t level;
+        uint8_t layout; /* RAID Level Qualifier */
+        service_id_t svc_id;
+        char devname[HR_DEVNAME_LEN];
+
+        hr_extent_t extents[HR_MAX_EXTENTS];
+        size_t hotspare_no;
+        hr_extent_t hotspares[HR_MAX_HOTSPARES];
+
+        /* protects ordering (hr_extent_t.svc_id, hotspares) */
+        fibril_rwlock_t extents_lock;
+
+        /* protects states (hr_extent_t.status, hr_vol_status_t.status) */
+        fibril_rwlock_t states_lock;
+
+        /* for halting IO requests when a REBUILD start waits */
+        bool halt_please;
+        fibril_mutex_t halt_lock;
 
         uint64_t rebuild_blk;
-
         uint64_t counter; /* metadata syncing */
-
-        service_id_t svc_id;
         hr_vol_status_t status;
-        hr_level_t level;
-        uint8_t layout; /* RAID Level Qualifier */
-        char devname[HR_DEVNAME_LEN];
 } hr_volume_t;