X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmds%2Flproc_mds.c;h=f273d0e2dcd8bd353e2235fcd0d061a1a194e14b;hb=d2d56f38da01001c92a09afc6b52b5acbd9bc13c;hp=0fc96bdc4f6fe5bbe06447cd229784b52ff3e51e;hpb=6759c2cb63625eb517613a8cd52047de8747d99c;p=fs%2Flustre-release.git

diff --git a/lustre/mds/lproc_mds.c b/lustre/mds/lproc_mds.c
index 0fc96bd..f273d0e 100644
--- a/lustre/mds/lproc_mds.c
+++ b/lustre/mds/lproc_mds.c
@@ -3,181 +3,353 @@
  *
  *  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/lustre_lite.h>
-#include <linux/lprocfs_status.h>
+#include <linux/version.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
+#include <asm/statfs.h>
+#endif
+#include <obd.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
+#include "mds_internal.h"
 
-int rd_uuid(char* page, char **start, off_t off, int count, int *eof, 
-            void *data)
+#ifdef LPROCFS
+static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count,
+                                 int *eof, void *data)
 {
-        struct obd_device* temp = (struct obd_device*)data;
-        int len = 0;
-        len += snprintf(page, count, "%s\n", temp->obd_uuid); 
-        return len;  
+        struct obd_device* obd = (struct obd_device *)data;
+
+        LASSERT(obd != NULL);
+        LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname);
+        *eof = 1;
+
+        return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname);
 }
-int rd_blksize(char* page, char **start, off_t off, int count, int *eof, 
-               void *data)
+
+static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
+                                       unsigned long count, void *data)
 {
-        struct obd_device* temp = (struct obd_device*)data;
-        struct mds_obd *mds = &temp->u.mds;
-        struct statfs mystats;
-        int rc, len = 0;
-        
-        rc = vfs_statfs(mds->mds_sb, &mystats);
-        if (rc) {
-                CERROR("mds: statfs failed: rc %d\n", rc);
-                return 0;
-        }
-        len += snprintf(page, count, LPU64"\n", (__u64)(mystats.f_bsize)); 
-        return len;
+        struct obd_device *obd = data;
+        struct mds_obd *mds = &obd->u.mds;
+        char tmpbuf[sizeof(struct obd_uuid)];
+        struct ptlrpc_request_set *set;
+        int rc;
+
+        sscanf(buffer, "%40s", tmpbuf);
+
+        if (strncmp(tmpbuf, "nid:", 4) != 0)
+                return lprocfs_wr_evict_client(file, buffer, count, data);
+
+        set = ptlrpc_prep_set();
+        if (!set)
+                return -ENOMEM;
+
+        rc = obd_set_info_async(mds->mds_osc_exp, strlen("evict_by_nid"),
+                                "evict_by_nid", strlen(tmpbuf + 4) + 1,
+                                 tmpbuf + 4, set);
+        if (rc)
+                CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
+                       rc);
+
+        ptlrpc_check_set(set);
 
+        /* See the comments in function lprocfs_wr_evict_client() 
+         * in ptlrpc/lproc_ptlrpc.c for details. - jay */
+        class_incref(obd);
+        LPROCFS_EXIT();
+
+        obd_export_evict_by_nid(obd, tmpbuf+4);
+
+        LPROCFS_ENTRY();
+        class_decref(obd);
+
+        rc = ptlrpc_set_wait(set);
+        if (rc)
+                CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
+                       rc);
+        ptlrpc_set_destroy(set);
+        return count;
 }
-int rd_kbtotal(char* page, char **start, off_t off, int count, int *eof, 
-               void *data)
+
+#if 0
+static int lprocfs_wr_group_info(struct file *file, const char *buffer,
+                                 unsigned long count, void *data)
 {
-        struct obd_device* temp = (struct obd_device*)data;
-        struct mds_obd *mds = &temp->u.mds;
-        struct statfs mystats;
-        int rc, len = 0;
-        __u32 blk_size;
-        __u64 result;
-        
-        rc = vfs_statfs(mds->mds_sb, &mystats);
-        if (rc) {
-                CERROR("mds: statfs failed: rc %d\n", rc);
-                return 0;
+        struct obd_device *obd = data;
+        struct mds_obd *mds = &obd->u.mds;
+        struct mds_grp_downcall_data sparam, *param = &sparam;
+        int size = 0, rc = count;
+
+        if (count < sizeof(param)) {
+                CERROR("%s: invalid data size %lu\n", obd->obd_name, count);
+                return count;
         }
-        
-        blk_size = mystats.f_bsize;
-        blk_size >>= 10;
-        result = mystats.f_blocks;
-        while(blk_size >>= 1){
-                result <<= 1;
+
+        if (copy_from_user(param, buffer, sizeof(*param)) ||
+            param->mgd_magic != MDS_GRP_DOWNCALL_MAGIC) {
+                CERROR("%s: MDS group downcall bad params\n", obd->obd_name);
+                return count;
         }
-        len += snprintf(page, count, LPU64"\n", result); 
-        return len;  
-        
-}
 
-int rd_kbfree(char* page, char **start, off_t off, int count, int *eof, 
-              void *data)
-{
-        struct obd_device* temp = (struct obd_device*)data;
-        struct mds_obd *mds = &temp->u.mds;
-        struct statfs mystats;
-        int rc, len = 0;
-        __u32 blk_size;
-        __u64 result;
-        
-
-        rc = vfs_statfs(mds->mds_sb, &mystats);
-        if (rc) {
-                CERROR("mds: statfs failed: rc %d\n", rc);
-                return 0;
+        if (param->mgd_ngroups > NGROUPS_MAX) {
+                CWARN("%s: uid %u groups %d more than maximum %d\n",
+                      obd->obd_name, param->mgd_uid, param->mgd_ngroups,
+                      NGROUPS_MAX);
+                param->mgd_ngroups = NGROUPS_MAX;
         }
-        blk_size = mystats.f_bsize;
-        blk_size >>= 10;
-        result = mystats.f_blocks;
-        while(blk_size >>= 1){
-                result <<= 1;
+
+        if (param->mgd_ngroups > 0) {
+                size = offsetof(struct mds_grp_downcall_data,
+                                mgd_groups[param->mgd_ngroups]);
+                OBD_ALLOC(param, size);
+                if (!param) {
+                        CERROR("%s: fail to alloc %d bytes for uid %u"
+                               " with %d groups\n", obd->obd_name, size,
+                               sparam.mgd_uid, sparam.mgd_ngroups);
+                        param = &sparam;
+                        param->mgd_ngroups = 0;
+                } else if (copy_from_user(param, buffer, size)) {
+                        CERROR("%s: uid %u bad supplementary group data\n",
+                               obd->obd_name, sparam.mgd_uid);
+                        OBD_FREE(param, size);
+                        param = &sparam;
+                        param->mgd_ngroups = 0;
+                }
         }
-        len += snprintf(page, count, LPU64"\n", result);
-        return len;  
-        
+        rc = upcall_cache_downcall(mds->mds_group_hash, param->mgd_err,
+                                   param->mgd_uid, param->mgd_gid,
+                                   param->mgd_ngroups, param->mgd_groups);
+
+        if (param && param != &sparam)
+                OBD_FREE(param, size);
+
+        return rc;
 }
 
-int rd_fstype(char* page, char **start, off_t off, int count, int *eof, 
-              void *data)
-{               
-        struct obd_device* temp = (struct obd_device*)data;
-        struct mds_obd *mds = &temp->u.mds;
-        int len = 0;
-        len += snprintf(page, count, "%s\n", mds->mds_fstype); 
-        return len;  
- 
+static int lprocfs_rd_group_expire(char *page, char **start, off_t off,
+                                   int count, int *eof, void *data)
+{
+        struct obd_device *obd = data;
+
+        *eof = 1;
+        return snprintf(page, count, "%lu\n",
+                        obd->u.mds.mds_group_hash->uc_entry_expire / HZ);
 }
 
-int rd_filestotal(char* page, char **start, off_t off, int count, int *eof, 
-                  void *data)
+static int lprocfs_wr_group_expire(struct file *file, const char *buffer,
+                                   unsigned long count, void *data)
 {
-        struct obd_device* temp = (struct obd_device*)data;
-        struct mds_obd *mds = &temp->u.mds;
-        struct statfs mystats;
-        int rc, len = 0;
-        
-        rc = vfs_statfs(mds->mds_sb, &mystats);
-        if (rc) {
-                CERROR("mds: statfs failed: rc %d\n", rc);
-                return 0;
-        }
-        
-        len += snprintf(page, count, LPU64"\n", (__u64)(mystats.f_files));
-        return len;  
+        struct obd_device *obd = data;
+        int val, rc;
+
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        if (val > 5)
+                obd->u.mds.mds_group_hash->uc_entry_expire = val * HZ;
+        else
+                CERROR("invalid expire time %u for group cache\n", val);
+
+        return count;
+}
+
+static int lprocfs_rd_group_acquire_expire(char *page, char **start, off_t off,
+                                           int count, int *eof, void *data)
+{
+        struct obd_device *obd = data;
+
+        *eof = 1;
+        return snprintf(page, count, "%lu\n",
+                        obd->u.mds.mds_group_hash->uc_acquire_expire / HZ);
+}
+
+static int lprocfs_wr_group_acquire_expire(struct file *file,const char *buffer,
+                                           unsigned long count, void *data)
+{
+        struct obd_device *obd = data;
+        int val, rc = 0;
+
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        if (val > 2)
+                obd->u.mds.mds_group_hash->uc_acquire_expire = val * HZ;
 
-        
+        return count;
 }
 
-int rd_filesfree(char* page, char **start, off_t off, int count, int *eof, 
-                  void *data)
+static int lprocfs_rd_group_upcall(char *page, char **start, off_t off,
+                                   int count, int *eof, void *data)
 {
-        struct obd_device* temp = (struct obd_device*)data;
-        struct mds_obd *mds = &temp->u.mds;
-        struct statfs mystats;
-        int rc, len = 0;
-        
-        rc = vfs_statfs(mds->mds_sb, &mystats);
-        if (rc) {
-                CERROR("mds: statfs failed: rc %d\n", rc);
-                return 0;
+        struct obd_device *obd = data;
+
+        *eof = 1;
+        return snprintf(page, count, "%s\n",
+                        obd->u.mds.mds_group_hash->uc_upcall);
+}
+
+static int lprocfs_wr_group_upcall(struct file *file, const char *buffer,
+                                   unsigned long count, void *data)
+{
+        struct obd_device *obd = data;
+        struct upcall_cache *hash = obd->u.mds.mds_group_hash;
+        char kernbuf[UC_CACHE_UPCALL_MAXPATH] = { '\0' };
+
+        if (count >= UC_CACHE_UPCALL_MAXPATH) {
+                CERROR("%s: group upcall too long\n", obd->obd_name);
+                return -EINVAL;
         }
-        
-        len += snprintf(page, count, LPU64"\n", (__u64)(mystats.f_ffree));
-        return len; 
+
+        if (copy_from_user(kernbuf, buffer,
+                           min(count, UC_CACHE_UPCALL_MAXPATH - 1)))
+                return -EFAULT;
+
+        /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
+        sscanf(kernbuf, "%s", hash->uc_upcall);
+
+        if (strcmp(hash->uc_name, obd->obd_name) != 0)
+                CWARN("%s: write to upcall name %s for MDS %s\n",
+                      obd->obd_name, hash->uc_upcall, obd->obd_name);
+        CWARN("%s: group upcall set to %s\n", obd->obd_name, hash->uc_upcall);
+
+        return count;
 }
 
-int rd_filegroups(char* page, char **start, off_t off, int count, int *eof, 
-                  void *data)
+static int lprocfs_wr_group_flush(struct file *file, const char *buffer,
+                                  unsigned long count, void *data)
 {
-        return 0;
+        struct obd_device *obd = data;
+
+        upcall_cache_flush_idle(obd->u.mds.mds_group_hash);
+        return count;
 }
-struct lprocfs_vars status_var_nm_1[]={
-        {"status/uuid", rd_uuid, 0, 0},
-        {"status/blocksize",rd_blksize, 0, 0},
-        {"status/kbytestotal",rd_kbtotal, 0, 0},
-        {"status/kbytesfree", rd_kbfree, 0, 0},
-        {"status/fstype", rd_fstype, 0, 0},
-        {"status/filestotal", rd_filestotal, 0, 0},
-        {"status/filesfree", rd_filesfree, 0, 0},
-        {"status/filegroups", rd_filegroups, 0, 0},
-        {0}
-};
-int rd_numrefs(char* page, char **start, off_t off, int count, int *eof, 
-               void *data)
+#endif
+
+static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
+                                 unsigned long count, void *data)
+{
+        struct obd_device *obd = data;
+        struct mds_obd *mds = &obd->u.mds;
+        char kernbuf[20], *end;
+        unsigned long diff = 0;
+
+        if (count > (sizeof(kernbuf) - 1))
+                return -EINVAL;
+
+        if (copy_from_user(kernbuf, buffer, count))
+                return -EFAULT;
+
+        kernbuf[count] = '\0';
+
+        diff = simple_strtoul(kernbuf, &end, 0);
+        if (kernbuf == end)
+                return -EINVAL;
+
+        mds->mds_atime_diff = diff;
+        return count;
+}
+
+static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
+                                 int count, int *eof, void *data)
 {
-        struct obd_type* class = (struct obd_type*)data;
-        int len = 0;
-        len += snprintf(page, count, "%d\n", class->typ_refcnt);
-        return len;
+        struct obd_device *obd = data;
+        struct mds_obd *mds = &obd->u.mds;
+
+        *eof = 1;
+        return snprintf(page, count, "%lu\n", mds->mds_atime_diff);
 }
 
-struct lprocfs_vars status_class_var[]={
-        {"status/num_refs", rd_numrefs, 0, 0},
-        {0}
+struct lprocfs_vars lprocfs_mds_obd_vars[] = {
+        { "uuid",            lprocfs_rd_uuid,        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 },
+        { "filestotal",      lprocfs_rd_filestotal,  0, 0 },
+        { "filesfree",       lprocfs_rd_filesfree,   0, 0 },
+        { "fstype",          lprocfs_rd_fstype,      0, 0 },
+        { "mntdev",          lprocfs_mds_rd_mntdev,  0, 0 },
+        { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
+        { "evict_client",    0,                lprocfs_mds_wr_evict_client, 0 },
+        { "num_exports",     lprocfs_rd_num_exports, 0, 0 },
+#ifdef HAVE_QUOTA_SUPPORT
+        { "quota_bunit_sz",  lprocfs_rd_bunit, lprocfs_wr_bunit, 0 },
+        { "quota_btune_sz",  lprocfs_rd_btune, lprocfs_wr_btune, 0 },
+        { "quota_iunit_sz",  lprocfs_rd_iunit, lprocfs_wr_iunit, 0 },
+        { "quota_itune_sz",  lprocfs_rd_itune, lprocfs_wr_itune, 0 },
+        { "quota_type",      lprocfs_rd_type, lprocfs_wr_type, 0 },
+#endif
+#if 0
+        { "group_expire_interval", lprocfs_rd_group_expire,
+                             lprocfs_wr_group_expire, 0},
+        { "group_acquire_expire", lprocfs_rd_group_acquire_expire,
+                             lprocfs_wr_group_acquire_expire, 0},
+        { "group_upcall",    lprocfs_rd_group_upcall,
+                             lprocfs_wr_group_upcall, 0},
+        { "group_flush",     0, lprocfs_wr_group_flush, 0},
+        { "group_info",      0, lprocfs_wr_group_info, 0 },
+#endif
+        { "atime_diff",      lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
+        { 0 }
 };
+
+struct lprocfs_vars lprocfs_mds_module_vars[] = {
+        { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
+        { 0 }
+};
+
+struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
+        { "uuid",         lprocfs_rd_uuid,        0, 0 },
+        { 0 }
+};
+
+struct lprocfs_vars lprocfs_mdt_module_vars[] = {
+        { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
+        { 0 }
+};
+
+void mds_counter_incr(struct obd_export *exp, int opcode)
+{
+        lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
+        lprocfs_counter_incr(exp->exp_ops_stats, opcode);
+}
+
+void mds_stats_counter_init(struct lprocfs_stats *stats)
+{
+        lprocfs_counter_init(stats, LPROC_MDS_OPEN, 0, "open", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_CLOSE, 0, "close", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_MKNOD, 0, "mknod", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_LINK, 0, "link", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_UNLINK, 0, "unlink", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_MKDIR, 0, "mkdir", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_RMDIR, 0, "rmdir", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_RENAME, 0, "rename", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_GETXATTR, 0, "getxattr", "reqs");
+        lprocfs_counter_init(stats, LPROC_MDS_SETXATTR, 0, "setxattr", "reqs");
+}
+
+LPROCFS_INIT_VARS(mds, lprocfs_mds_module_vars, lprocfs_mds_obd_vars);
+LPROCFS_INIT_VARS(mdt, lprocfs_mdt_module_vars, lprocfs_mdt_obd_vars);
+#endif