X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flov%2Flproc_lov.c;h=0fa460bf433933394e4991710a1151d12893f9a7;hp=5e15f600c3526d0eee11a3d1ee96c392fb9183e0;hb=9b444af6ad00c68d74ec70f01e1236d2d075eee1;hpb=0b4e6499fbed4b8da6f8fb961bbb91c3a795e461

diff --git a/lustre/lov/lproc_lov.c b/lustre/lov/lproc_lov.c
index 5e15f60..0fa460b 100644
--- a/lustre/lov/lproc_lov.c
+++ b/lustre/lov/lproc_lov.c
@@ -3,178 +3,351 @@
  *
  *  Copyright (C) 2002 Cluster File Systems, Inc.
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ *   This file is part of the Lustre file system, http://www.lustre.org
+ *   Lustre is a trademark of Cluster File Systems, Inc.
  *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
+ *   You may have signed or agreed to another license before downloading
+ *   this software.  If so, you are bound by the terms and conditions
+ *   of that agreement, and the following does not apply to you.  See the
+ *   LICENSE file included with this distribution for more information.
  *
- *   Lustre is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
+ *   If you did not agree to a different license, then this copy of Lustre
+ *   is open source software; you can redistribute it and/or modify it
+ *   under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *   In either case, Lustre is distributed in the hope that it will be
+ *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   license text for more details.
  *
  */
 #define DEBUG_SUBSYSTEM S_CLASS
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lprocfs.h>
-#include <linux/string.h>
-#include <linux/lustre_lib.h>
 
+#include <linux/version.h>
+#include <asm/statfs.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
+#include <linux/seq_file.h>
+#include "lov_internal.h"
 
-/*
- * Common SNMP namespace
- */
+#ifdef LPROCFS
+static int lov_rd_stripesize(char *page, char **start, off_t off, int count,
+                             int *eof, void *data)
+{
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
+
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        *eof = 1;
+        return snprintf(page, count, LPU64"\n", desc->ld_default_stripe_size);
+}
 
-int rd_uuid(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
+static int lov_wr_stripesize(struct file *file, const char *buffer,
+                               unsigned long count, void *data)
 {
-        int len=0;
-        struct obd_device* dev=(struct obd_device*)data;
-        len+=snprintf(page, count, "%s\n", dev->obd_uuid);
-        return len;
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
+        __u64 val;
+        int rc;
         
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        rc = lprocfs_write_u64_helper(buffer, count, &val);
+        if (rc)
+                return rc;
 
+        desc->ld_default_stripe_size = val;
+        lov_fix_desc(desc);
+        return count;
 }
-int rd_stripesize(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
+
+static int lov_rd_stripeoffset(char *page, char **start, off_t off, int count,
+                               int *eof, void *data)
 {
-        struct obd_device* dev=(struct obd_device*)data;
-        int len=0;
-        struct lov_obd* lov=&dev->u.lov;
-        len+=snprintf(page, count, LPU64"\n", \
-                      (__u64)(lov->desc.ld_default_stripe_count));
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
+
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        *eof = 1;
+        return snprintf(page, count, LPU64"\n", desc->ld_default_stripe_offset);
+}
+
+static int lov_wr_stripeoffset(struct file *file, const char *buffer,
+                               unsigned long count, void *data)
+{
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
+        __u64 val;
+        int rc;
         
-        return len;
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        rc = lprocfs_write_u64_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        desc->ld_default_stripe_offset = val;
+        lov_fix_desc(desc);
+        return count;
 }
 
-int rd_stripedepth(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
+static int lov_rd_stripetype(char *page, char **start, off_t off, int count,
+                             int *eof, void *data)
 {
-        struct obd_device* dev=(struct obd_device*)data;
-        int len=0;
-        struct lov_obd* lov=&dev->u.lov;
-        len+=snprintf(page, count, LPU64"\n", \
-                      lov->desc.ld_default_stripe_size);
-        return len;
+        struct obd_device* dev = (struct obd_device*)data;
+        struct lov_desc *desc;
 
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        *eof = 1;
+        return snprintf(page, count, "%u\n", desc->ld_pattern);
 }
-int rd_stripefactor(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
+
+static int lov_wr_stripetype(struct file *file, const char *buffer,
+                             unsigned long count, void *data)
 {
-        struct obd_device* dev=(struct obd_device*)data;
-        int len=0;
-        struct lov_obd* lov=&dev->u.lov;
-        len+=snprintf(page, count, LPU64"\n", \
-                      lov->desc.ld_default_stripe_offset);
-        return len;
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
+        int val, rc;
+        
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
 
+        desc->ld_pattern = val;
+        lov_fix_desc(desc);
+        return count;
 }
 
-int rd_stripetype(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
-{       
-        struct obd_device* dev=(struct obd_device*)data;
-        int len=0;
-        struct lov_obd* lov=&dev->u.lov;
-        len+=snprintf(page, count, LPU64"\n", \
-                      (__u64)(lov->desc.ld_pattern));
-        return len;
+static int lov_rd_stripecount(char *page, char **start, off_t off, int count,
+                              int *eof, void *data)
+{
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
 
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        *eof = 1;
+        return snprintf(page, count, "%u\n", desc->ld_default_stripe_count);
 }
 
-int rd_blksize(char* page, char **start, off_t off,
-                int count, int *eof, void *data)
+static int lov_wr_stripecount(struct file *file, const char *buffer,
+                              unsigned long count, void *data)
 {
-        return 0;
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_desc *desc;
+        int val, rc;
+        
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        desc->ld_default_stripe_count = val;
+        lov_fix_desc(desc);
+        return count;
 }
 
+static int lov_rd_numobd(char *page, char **start, off_t off, int count,
+                         int *eof, void *data)
+{
+        struct obd_device *dev = (struct obd_device*)data;
+        struct lov_desc *desc;
+
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        *eof = 1;
+        return snprintf(page, count, "%u\n", desc->ld_tgt_count);
+
+}
 
-int rd_blktotal(char* page, char **start, off_t off,
-                int count, int *eof, void *data)
+static int lov_rd_activeobd(char *page, char **start, off_t off, int count,
+                            int *eof, void *data)
 {
-        return 0;
+        struct obd_device* dev = (struct obd_device*)data;
+        struct lov_desc *desc;
+
+        LASSERT(dev != NULL);
+        desc = &dev->u.lov.desc;
+        *eof = 1;
+        return snprintf(page, count, "%u\n", desc->ld_active_tgt_count);
 }
 
-int rd_blkfree(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
+static int lov_rd_desc_uuid(char *page, char **start, off_t off, int count,
+                            int *eof, void *data)
 {
-        return 0;
+        struct obd_device *dev = (struct obd_device*) data;
+        struct lov_obd *lov;
+
+        LASSERT(dev != NULL);
+        lov = &dev->u.lov;
+        *eof = 1;
+        return snprintf(page, count, "%s\n", lov->desc.ld_uuid.uuid);
 }
 
-int rd_kbfree(char* page, char **start, off_t off,
-              int count, int *eof, void *data)
+/* free priority (0-255): how badly user wants to choose empty osts */ 
+static int lov_rd_qos_priofree(char *page, char **start, off_t off, int count,
+                               int *eof, void *data)
 {
-        return 0;
+        struct obd_device *dev = (struct obd_device*) data;
+        struct lov_obd *lov;
+
+        LASSERT(dev != NULL);
+        lov = &dev->u.lov;
+        *eof = 1;
+        return snprintf(page, count, "%d%%\n", 
+                        (lov->lov_qos.lq_prio_free * 100) >> 8);
 }
 
-int rd_numobjects(char* page, char **start, off_t off,
-                  int count, int *eof, void *data)
+static int lov_wr_qos_priofree(struct file *file, const char *buffer,
+                               unsigned long count, void *data)
 {
-        return 0;
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_obd *lov;
+        int val, rc;
+        LASSERT(dev != NULL);
+
+        lov = &dev->u.lov;
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        if (val > 100)
+                return -EINVAL;
+        lov->lov_qos.lq_prio_free = (val << 8) / 100;
+        lov->lov_qos.lq_dirty = 1;
+        lov->lov_qos.lq_reset = 1;
+        return count;
 }
 
-int rd_objfree(char* page, char **start, off_t off,
-               int count, int *eof, void *data)
+static int lov_rd_qos_maxage(char *page, char **start, off_t off, int count,
+                             int *eof, void *data)
 {
-        return 0;
+        struct obd_device *dev = (struct obd_device*) data;
+        struct lov_obd *lov;
+
+        LASSERT(dev != NULL);
+        lov = &dev->u.lov;
+        *eof = 1;
+        return snprintf(page, count, "%u Sec\n", lov->desc.ld_qos_maxage);
 }
 
-int rd_objgroups(char* page, char **start, off_t off,
-                 int count, int *eof, void *data)
+static int lov_wr_qos_maxage(struct file *file, const char *buffer,
+                             unsigned long count, void *data)
 {
-        return 0;
+        struct obd_device *dev = (struct obd_device *)data;
+        struct lov_obd *lov;
+        int val, rc;
+        LASSERT(dev != NULL);
+
+        lov = &dev->u.lov;
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        if (val <= 0)
+                return -EINVAL;
+        lov->desc.ld_qos_maxage = val;
+        return count;
 }
 
-int rd_target(char* page, char **start, off_t off,
-                 int count, int *eof, void *data)
+static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
 {
-        struct obd_device* dev=(struct obd_device*)data;
-        int len=0, i=0;
-        struct lov_obd* lov=&dev->u.lov;
-        struct lov_tgt_desc* tgts=lov->tgts;
-        while(i<lov->desc.ld_tgt_count){
-                len+=snprintf(page, count, \
-                              "OBD Device [%d] UUID: %s\n", \
-                              i, tgts->uuid);
+        struct obd_device *dev = p->private;
+        struct lov_obd *lov = &dev->u.lov;
 
-                i++;
-                tgts++;
+        return (*pos >= lov->desc.ld_tgt_count) ? NULL : lov->lov_tgts[*pos];
+
+}
+
+static void lov_tgt_seq_stop(struct seq_file *p, void *v)
+{
+}
+
+static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+        struct obd_device *dev = p->private;
+        struct lov_obd *lov = &dev->u.lov;
+
+        while (++*pos < lov->desc.ld_tgt_count) {
+                if (lov->lov_tgts[*pos])
+                        return lov->lov_tgts[*pos];
         }
+        return NULL;
+}
+
+static int lov_tgt_seq_show(struct seq_file *p, void *v)
+{
+        struct lov_tgt_desc *tgt = v;
+        return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index, 
+                          obd_uuid2str(&tgt->ltd_uuid), 
+                          tgt->ltd_active ? "" : "IN");
+}
+
+struct seq_operations lov_tgt_sops = {
+        .start = lov_tgt_seq_start,
+        .stop = lov_tgt_seq_stop,
+        .next = lov_tgt_seq_next,
+        .show = lov_tgt_seq_show,
+};
+
+static int lov_target_seq_open(struct inode *inode, struct file *file)
+{
+        struct proc_dir_entry *dp = PDE(inode);
+        struct seq_file *seq;
+        int rc;
         
-        return len;
-}
-int rd_mdc(char* page, char **start, off_t off,
-                 int count, int *eof, void *data)
-{
-        struct obd_device* dev=(struct obd_device*)data;
-        int len=0;
-        struct lov_obd* lov=&dev->u.lov;
-        len+=snprintf(page, count, \
-                              "%s\n", \
-                              lov->mdcobd->obd_uuid);
-        return len;
-}
-
-lprocfs_vars_t snmp_var_nm_1[]={
-        {"snmp/uuid", rd_uuid, 0},
-        {"snmp/lov_stripesize",rd_stripesize, 0},
-        {"snmp/lov_stripedepth",rd_stripedepth, 0},
-        {"snmp/lov_stripefactor",rd_stripefactor, 0},
-        {"snmp/lov_stripetype", rd_stripetype, 0},
-        {"snmp/f_objects", rd_numobjects, 0},
-        {"snmp/f_objectsfree", rd_objfree, 0},
-        {"snmp/f_objectgroups", rd_objgroups, 0},
-        {"snmp/f_blocksize", rd_blksize, 0},
-        {"snmp/f_blockstotal", rd_blktotal, 0},
-        {"snmp/f_kbytesfree", rd_kbfree, 0},
-        {"snmp/f_blocksfree", rd_blkfree, 0},
-        {"snmp/target_obd", rd_target, 0},
-        {"snmp/target_mdc", rd_mdc, 0},
-        {0}
+        LPROCFS_ENTRY_AND_CHECK(dp);
+        rc = seq_open(file, &lov_tgt_sops);
+        if (rc) {
+                LPROCFS_EXIT();
+                return rc;
+        }
+
+        seq = file->private_data;
+        seq->private = dp->data;
+        return 0;
+}
+
+struct lprocfs_vars lprocfs_obd_vars[] = {
+        { "uuid",         lprocfs_rd_uuid,        0, 0 },
+        { "stripesize",   lov_rd_stripesize,      lov_wr_stripesize, 0 },
+        { "stripeoffset", lov_rd_stripeoffset,    lov_wr_stripeoffset, 0 },
+        { "stripecount",  lov_rd_stripecount,     lov_wr_stripecount, 0 },
+        { "stripetype",   lov_rd_stripetype,      lov_wr_stripetype, 0 },
+        { "numobd",       lov_rd_numobd,          0, 0 },
+        { "activeobd",    lov_rd_activeobd,       0, 0 },
+        { "filestotal",   lprocfs_rd_filestotal,  0, 0 },
+        { "filesfree",    lprocfs_rd_filesfree,   0, 0 },
+        /*{ "filegroups", lprocfs_rd_filegroups,  0, 0 },*/
+        { "blocksize",    lprocfs_rd_blksize,     0, 0 },
+        { "kbytestotal",  lprocfs_rd_kbytestotal, 0, 0 },
+        { "kbytesfree",   lprocfs_rd_kbytesfree,  0, 0 },
+        { "kbytesavail",  lprocfs_rd_kbytesavail, 0, 0 },
+        { "desc_uuid",    lov_rd_desc_uuid,       0, 0 },
+        { "qos_prio_free",lov_rd_qos_priofree,    lov_wr_qos_priofree, 0 },
+        { "qos_maxage",   lov_rd_qos_maxage,      lov_wr_qos_maxage, 0 },
+        { 0 }
+};
+
+static struct lprocfs_vars lprocfs_module_vars[] = {
+        { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
+        { 0 }
 };
+
+struct file_operations lov_proc_target_fops = {
+        .owner   = THIS_MODULE,
+        .open    = lov_target_seq_open,
+        .read    = seq_read,
+        .llseek  = seq_lseek,
+        .release = lprocfs_seq_release,
+};
+
+LPROCFS_INIT_VARS(lov, lprocfs_module_vars, lprocfs_obd_vars)
+#endif /* LPROCFS */