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LU-1866 lfsck: general framework for LFSCK 1.5
[fs/lustre-release.git] / lustre / mdd / mdd_lproc.c
index dfcb921..4d8e42d 100644 (file)
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
  * Author: Wang Di <wangdi@clusterfs.com>
  */
 
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
 #define DEBUG_SUBSYSTEM S_MDS
 
-#include <linux/module.h>
-#include <linux/poll.h>
 #include <obd.h>
 #include <obd_class.h>
-#include <lustre_ver.h>
 #include <obd_support.h>
 #include <lprocfs_status.h>
-#include <lu_time.h>
-#include <lustre_log.h>
-#include <lustre/lustre_idl.h>
 #include <libcfs/libcfs_string.h>
-
 #include "mdd_internal.h"
 
-static const char *mdd_counter_names[LPROC_MDD_NR] = {
-};
-
 int mdd_procfs_init(struct mdd_device *mdd, const char *name)
 {
         struct lprocfs_static_vars lvars;
-        struct lu_device    *ld = &mdd->mdd_md_dev.md_lu_dev;
         struct obd_type     *type;
         int                  rc;
         ENTRY;
 
-        type = ld->ld_type->ldt_obd_type;
+       /* at the moment there is no linkage between lu_type
+        * and obd_type, so we lookup obd_type this way */
+       type = class_search_type(LUSTRE_MDD_NAME);
 
         LASSERT(name != NULL);
         LASSERT(type != NULL);
@@ -87,9 +75,7 @@ int mdd_procfs_init(struct mdd_device *mdd, const char *name)
                 GOTO(out, rc);
         }
 
-        rc = lu_time_init(&mdd->mdd_stats,
-                          mdd->mdd_proc_entry,
-                          mdd_counter_names, ARRAY_SIZE(mdd_counter_names));
+       rc = 0;
 
         EXIT;
 out:
@@ -100,9 +86,6 @@ out:
 
 int mdd_procfs_fini(struct mdd_device *mdd)
 {
-        if (mdd->mdd_stats)
-                lu_time_fini(&mdd->mdd_stats);
-
         if (mdd->mdd_proc_entry) {
                  lprocfs_remove(&mdd->mdd_proc_entry);
                  mdd->mdd_proc_entry = NULL;
@@ -110,17 +93,6 @@ int mdd_procfs_fini(struct mdd_device *mdd)
         RETURN(0);
 }
 
-void mdd_lprocfs_time_start(const struct lu_env *env)
-{
-        lu_lprocfs_time_start(env);
-}
-
-void mdd_lprocfs_time_end(const struct lu_env *env, struct mdd_device *mdd,
-                          int idx)
-{
-        lu_lprocfs_time_end(env, mdd->mdd_stats, idx);
-}
-
 static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
                                  unsigned long count, void *data)
 {
@@ -131,7 +103,7 @@ static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
         if (count > (sizeof(kernbuf) - 1))
                 return -EINVAL;
 
-        if (copy_from_user(kernbuf, buffer, count))
+        if (cfs_copy_from_user(kernbuf, buffer, count))
                 return -EFAULT;
 
         kernbuf[count] = '\0';
@@ -184,12 +156,12 @@ static int lprocfs_wr_changelog_mask(struct file *file, const char *buffer,
         OBD_ALLOC(kernbuf, CFS_PAGE_SIZE);
         if (kernbuf == NULL)
                 RETURN(-ENOMEM);
-        if (copy_from_user(kernbuf, buffer, count))
+        if (cfs_copy_from_user(kernbuf, buffer, count))
                 GOTO(out, rc = -EFAULT);
         kernbuf[count] = 0;
 
-        rc = libcfs_str2mask(kernbuf, changelog_type2str, &mdd->mdd_cl.mc_mask,
-                             CHANGELOG_MINMASK, CHANGELOG_ALLMASK);
+        rc = cfs_str2mask(kernbuf, changelog_type2str, &mdd->mdd_cl.mc_mask,
+                          CHANGELOG_MINMASK, CHANGELOG_ALLMASK);
         if (rc == 0)
                 rc = count;
 out:
@@ -203,8 +175,9 @@ struct cucb_data {
         int idx;
 };
 
-static int lprocfs_changelog_users_cb(struct llog_handle *llh,
-                                      struct llog_rec_hdr *hdr, void *data)
+static int lprocfs_changelog_users_cb(const struct lu_env *env,
+                                     struct llog_handle *llh,
+                                     struct llog_rec_hdr *hdr, void *data)
 {
         struct llog_changelog_user_rec *rec;
         struct cucb_data *cucb = (struct cucb_data *)data;
@@ -225,21 +198,30 @@ static int lprocfs_changelog_users_cb(struct llog_handle *llh,
 static int lprocfs_rd_changelog_users(char *page, char **start, off_t off,
                                       int count, int *eof, void *data)
 {
-        struct mdd_device *mdd = data;
-        struct llog_ctxt *ctxt;
-        struct cucb_data cucb;
-        __u64 cur;
+       struct lu_env            env;
+       struct mdd_device       *mdd = data;
+       struct llog_ctxt        *ctxt;
+       struct cucb_data         cucb;
+       __u64                    cur;
+       int                      rc;
 
         *eof = 1;
 
-        ctxt = llog_get_context(mdd2obd_dev(mdd),LLOG_CHANGELOG_USER_ORIG_CTXT);
+        ctxt = llog_get_context(mdd2obd_dev(mdd),
+                               LLOG_CHANGELOG_USER_ORIG_CTXT);
         if (ctxt == NULL)
                 return -ENXIO;
         LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
 
-        spin_lock(&mdd->mdd_cl.mc_lock);
-        cur = mdd->mdd_cl.mc_index;
-        spin_unlock(&mdd->mdd_cl.mc_lock);
+       rc = lu_env_init(&env, LCT_LOCAL);
+       if (rc) {
+               llog_ctxt_put(ctxt);
+               return rc;
+       }
+
+       spin_lock(&mdd->mdd_cl.mc_lock);
+       cur = mdd->mdd_cl.mc_index;
+       spin_unlock(&mdd->mdd_cl.mc_lock);
 
         cucb.count = count;
         cucb.page = page;
@@ -251,30 +233,14 @@ static int lprocfs_rd_changelog_users(char *page, char **start, off_t off,
         cucb.idx += snprintf(cucb.page + cucb.idx, cucb.count - cucb.idx,
                               "%-5s %s\n", "ID", "index");
 
-        llog_cat_process(ctxt->loc_handle, lprocfs_changelog_users_cb,
-                         &cucb, 0, 0);
+       llog_cat_process(&env, ctxt->loc_handle, lprocfs_changelog_users_cb,
+                        &cucb, 0, 0);
 
-        llog_ctxt_put(ctxt);
-        return cucb.idx;
+       lu_env_fini(&env);
+       llog_ctxt_put(ctxt);
+       return cucb.idx;
 }
 
-#ifdef HAVE_QUOTA_SUPPORT
-static int mdd_lprocfs_quota_rd_type(char *page, char **start, off_t off,
-                                     int count, int *eof, void *data)
-{
-        struct mdd_device *mdd = data;
-        return lprocfs_quota_rd_type(page, start, off, count, eof,
-                                     mdd->mdd_obd_dev);
-}
-
-static int mdd_lprocfs_quota_wr_type(struct file *file, const char *buffer,
-                                     unsigned long count, void *data)
-{
-        struct mdd_device *mdd = data;
-        return lprocfs_quota_wr_type(file, buffer, count, mdd->mdd_obd_dev);
-}
-#endif
-
 static int lprocfs_rd_sync_perm(char *page, char **start, off_t off,
                                 int count, int *eof, void *data)
 {
@@ -299,17 +265,53 @@ static int lprocfs_wr_sync_perm(struct file *file, const char *buffer,
         return count;
 }
 
+static int lprocfs_rd_lfsck_speed_limit(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data)
+{
+       struct mdd_device *mdd = data;
+
+       LASSERT(mdd != NULL);
+       *eof = 1;
+       return snprintf(page, count, "%u\n",
+                       mdd->mdd_lfsck.ml_bookmark_ram.lb_speed_limit);
+}
+
+static int lprocfs_wr_lfsck_speed_limit(struct file *file, const char *buffer,
+                                       unsigned long count, void *data)
+{
+       struct mdd_device *mdd = data;
+       struct md_lfsck *lfsck;
+       __u32 val;
+       int rc;
+
+       LASSERT(mdd != NULL);
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc != 0)
+               return rc;
+
+       lfsck = &mdd->mdd_lfsck;
+       if (val != lfsck->ml_bookmark_ram.lb_speed_limit) {
+               struct lu_env env;
+
+               rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
+               if (rc != 0)
+                       return rc;
+
+               rc = mdd_lfsck_set_speed(&env, lfsck, val);
+               lu_env_fini(&env);
+       }
+       return rc != 0 ? rc : count;
+}
+
 static struct lprocfs_vars lprocfs_mdd_obd_vars[] = {
         { "atime_diff",      lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
         { "changelog_mask",  lprocfs_rd_changelog_mask,
                              lprocfs_wr_changelog_mask, 0 },
         { "changelog_users", lprocfs_rd_changelog_users, 0, 0},
-#ifdef HAVE_QUOTA_SUPPORT
-        { "quota_type",      mdd_lprocfs_quota_rd_type,
-                             mdd_lprocfs_quota_wr_type, 0 },
-#endif
         { "sync_permission", lprocfs_rd_sync_perm, lprocfs_wr_sync_perm, 0 },
-        { 0 }
+       { "lfsck_speed_limit", lprocfs_rd_lfsck_speed_limit,
+                              lprocfs_wr_lfsck_speed_limit, 0 },
+       { 0 }
 };
 
 static struct lprocfs_vars lprocfs_mdd_module_vars[] = {