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[fs/lustre-release.git] / lustre / mds / lproc_mds.c
index a3e3417..f658434 100644 (file)
 #include <linux/obd.h>
 #include <linux/obd_class.h>
 #include <linux/lprocfs_status.h>
+#include "mds_internal.h"
 
 #ifndef LPROCFS
+
 struct lprocfs_vars lprocfs_mds_obd_vars[]  = { {0} };
 struct lprocfs_vars lprocfs_mds_module_vars[] = { {0} };
 struct lprocfs_vars lprocfs_mdt_obd_vars[] = { {0} };
@@ -37,8 +39,8 @@ struct lprocfs_vars lprocfs_mdt_module_vars[] = { {0} };
 
 #else
 
-static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count,
-                                 int *eof, void *data)
+static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off,
+                                 int count, int *eof, void *data)
 {
         struct obd_device* obd = (struct obd_device *)data;
 
@@ -46,76 +48,8 @@ static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count,
         LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname);
         *eof = 1;
 
-        return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname);
-}
-
-static int lprocfs_mds_rd_filesopen(char *page, char **start, off_t off,
-                                    int count, int *eof, void *data)
-{
-        struct obd_device *obd = data;
-        LASSERT(obd != NULL);
-        *eof = 1;
-
-        return snprintf(page, count, "%d\n",
-                        atomic_read(&obd->u.mds.mds_open_count));
-}
-
-static int lprocfs_mds_rd_recovery_status(char *page, char **start, off_t off,
-                                          int count, int *eof, void *data)
-{
-        struct obd_device *obd = data;
-        int len = 0, n,
-                connected = obd->obd_connected_clients,
-                max_recoverable = obd->obd_max_recoverable_clients,
-                recoverable = obd->obd_recoverable_clients,
-                completed = max_recoverable - recoverable,
-                queue_len = obd->obd_requests_queued_for_recovery,
-                replayed = obd->obd_replayed_requests;
-        __u64 next_transno = obd->obd_next_recovery_transno;
-
-        LASSERT(obd != NULL);
-        *eof = 1;
-
-        n = snprintf(page, count, "status: ");
-        page += n; len += n; count -= n;
-        if (obd->obd_max_recoverable_clients == 0) {
-                n = snprintf(page, count, "INACTIVE\n");
-                return len + n;
-        }
-
-        if (obd->obd_recoverable_clients == 0) {
-                n = snprintf(page, count, "COMPLETE\n");
-                page += n; len += n; count -= n;
-                n = snprintf(page, count, "recovered_clients: %d\n",
-                             max_recoverable);
-                page += n; len += n; count -= n;
-                n = snprintf(page, count, "last_transno: "LPD64"\n",
-                             next_transno - 1);
-                page += n; len += n; count -= n;
-                n = snprintf(page, count, "replayed_requests: %d\n", replayed);
-                return len + n;
-        }
-
-        /* sampled unlocked, but really... */
-        if (obd->obd_recovering == 0) {
-                n = snprintf(page, count, "ABORTED\n");
-                return len + n;
-        }
-
-        n = snprintf(page, count, "RECOVERING\n");
-        page += n; len += n; count -= n;
-        n = snprintf(page, count, "connected_clients: %d/%d\n",
-                     connected, max_recoverable);
-        page += n; len += n; count -= n;
-        n = snprintf(page, count, "completed_clients: %d/%d\n",
-                     completed, max_recoverable);
-        page += n; len += n; count -= n;
-        n = snprintf(page, count, "replayed_requests: %d/??\n", replayed);
-        page += n; len += n; count -= n;
-        n = snprintf(page, count, "queued_requests: %d\n", queue_len);
-        page += n; len += n; count -= n;
-        n = snprintf(page, count, "next_transno: "LPD64"\n", next_transno);
-        return len + n;
+        return snprintf(page, count, "%s\n",
+                        obd->u.mds.mds_vfsmnt->mnt_devname);
 }
 
 static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
@@ -153,6 +87,52 @@ static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
         return count;
 }
 
+static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer,
+                                        unsigned long count, void *data)
+{
+        struct obd_device *obd = data;
+        ENTRY;
+
+        RETURN(mds_dt_update_config(obd, 0));
+}
+
+static int lprocfs_rd_filesopen(char *page, char **start, off_t off,
+                                int count, int *eof, void *data)
+{
+        struct obd_device *obd = data;
+        LASSERT(obd != NULL);
+        *eof = 1;
+
+        return snprintf(page, count, "%d\n",
+                        atomic_read(&obd->u.mds.mds_open_count));
+}
+
+static int lprocfs_rd_last_fid(char *page, char **start, off_t off,
+                               int count, int *eof, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        struct mds_obd *mds = &obd->u.mds;
+        __u64 last_fid;
+
+        spin_lock(&mds->mds_last_fid_lock);
+        last_fid = mds->mds_last_fid;
+        spin_unlock(&mds->mds_last_fid_lock);
+
+        *eof = 1;
+        return snprintf(page, count, LPD64"\n", last_fid);
+}
+
+static int lprocfs_rd_group(char *page, char **start, off_t off,
+                            int count, int *eof, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        struct mds_obd *mds = &obd->u.mds;
+
+        *eof = 1;
+        return snprintf(page, count, "%lu\n",
+                        (unsigned long)mds->mds_num);
+}
+
 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
         { "uuid",         lprocfs_rd_uuid,        0, 0 },
         { "blocksize",    lprocfs_rd_blksize,     0, 0 },
@@ -162,16 +142,169 @@ struct lprocfs_vars lprocfs_mds_obd_vars[] = {
         { "fstype",       lprocfs_rd_fstype,      0, 0 },
         { "filestotal",   lprocfs_rd_filestotal,  0, 0 },
         { "filesfree",    lprocfs_rd_filesfree,   0, 0 },
-        { "filesopen",    lprocfs_mds_rd_filesopen,   0, 0 },
+        { "filesopen",    lprocfs_rd_filesopen,   0, 0 },
         { "mntdev",       lprocfs_mds_rd_mntdev,  0, 0 },
-        { "recovery_status", lprocfs_mds_rd_recovery_status, 0, 0 },
+        { "last_fid",     lprocfs_rd_last_fid,    0, 0 },
+        { "group",        lprocfs_rd_group,       0, 0 },
+        { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
         { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
+        { "config_update", 0, lprocfs_mds_wr_config_update, 0 },
         { "num_exports",  lprocfs_rd_num_exports, 0, 0 },
         { 0 }
 };
 
+/*
+ * LSD proc entry handlers
+ */
+static int lprocfs_wr_lsd_downcall(struct file *file, const char *buffer,
+                                   unsigned long count, void *data)
+{
+        struct upcall_cache *cache = __mds_get_global_lsd_cache();
+        struct lsd_downcall_args param;
+        gid_t   gids_local[NGROUPS_SMALL];
+        gid_t  *gids = NULL;
+
+        if (count != sizeof(param)) {
+                CERROR("invalid data size %lu\n", count);
+                goto do_err_downcall;
+        }
+        if (copy_from_user(&param, buffer, count)) {
+                CERROR("broken downcall\n");
+                goto do_err_downcall;
+        }
+
+        if (param.err) {
+                CERROR("LSD downcall indicate error %d\n", param.err);
+                goto do_downcall;
+        }
+
+        if (param.ngroups > NGROUPS_MAX) {
+                CERROR("%d groups too big\n", param.ngroups);
+                goto do_err_downcall;
+        }
+
+        if (param.ngroups <= NGROUPS_SMALL)
+                gids = gids_local;
+        else {
+                OBD_ALLOC(gids, param.ngroups * sizeof(gid_t));
+                if (!gids) {
+                        CERROR("fail to alloc memory for %d gids\n",
+                                param.ngroups);
+                        goto do_err_downcall;
+                }
+        }
+        if (copy_from_user(gids, param.groups,
+                           param.ngroups * sizeof(gid_t))) {
+                CERROR("broken downcall\n");
+                goto do_err_downcall;
+        }
+
+        param.groups = gids;
+
+do_downcall:
+        upcall_cache_downcall(cache, (__u64) param.uid, &param);
+
+        if (gids && gids != gids_local)
+                OBD_FREE(gids, param.ngroups * sizeof(gid_t));
+        return count;
+
+do_err_downcall:
+        param.err = -EINVAL;
+        goto do_downcall;
+}
+
+static int lprocfs_rd_lsd_expire(char *page, char **start, off_t off, int count,
+                                 int *eof, void *data)
+{
+        struct upcall_cache *cache= __mds_get_global_lsd_cache();
+
+        *eof = 1;
+        return snprintf(page, count, "%lu\n", cache->uc_entry_expire);
+}
+static int lprocfs_wr_lsd_expire(struct file *file, const char *buffer,
+                                 unsigned long count, void *data)
+{
+        struct upcall_cache *cache= __mds_get_global_lsd_cache();
+        char buf[32];
+
+        if (copy_from_user(buf, buffer, min(count, 32UL)))
+                return count;
+        buf[31] = 0;
+        sscanf(buf, "%lu", &cache->uc_entry_expire);
+        return count;
+}
+
+static int lprocfs_rd_lsd_ac_expire(char *page, char **start, off_t off,
+                                    int count, int *eof, void *data)
+{
+        struct upcall_cache *cache= __mds_get_global_lsd_cache();
+
+        *eof = 1;
+        return snprintf(page, count, "%lu\n", cache->uc_acquire_expire);
+}
+static int lprocfs_wr_lsd_ac_expire(struct file *file, const char *buffer,
+                                    unsigned long count, void *data)
+{
+        struct upcall_cache *cache= __mds_get_global_lsd_cache();
+        char buf[32];
+
+        if (copy_from_user(buf, buffer, min(count, 32UL)))
+                return count;
+        buf[31] = 0;
+        sscanf(buf, "%lu", &cache->uc_acquire_expire);
+        return count;
+}
+
+static int lprocfs_rd_lsd_upcall(char *page, char **start, off_t off, int count,
+                                 int *eof, void *data)
+{
+        struct upcall_cache *cache= __mds_get_global_lsd_cache();
+
+        *eof = 1;
+        return snprintf(page, count, "%s\n", cache->uc_upcall);
+}
+static int lprocfs_wr_lsd_upcall(struct file *file, const char *buffer,
+                                 unsigned long count, void *data)
+{
+        struct upcall_cache *cache= __mds_get_global_lsd_cache();
+
+        if (count < UC_CACHE_UPCALL_MAXPATH) {
+                sscanf(buffer, "%1024s", cache->uc_upcall);
+                cache->uc_upcall[UC_CACHE_UPCALL_MAXPATH - 1] = 0;
+        }
+        return count;
+}
+
+extern void lgss_svc_cache_flush(__u32 uid);
+static int lprocfs_wr_lsd_flush(struct file *file, const char *buffer,
+                                unsigned long count, void *data)
+{
+        char buf[32];
+        __u32 uid;
+
+        if (copy_from_user(buf, buffer, min(count, 32UL)))
+                return count;
+        buf[31] = 0;
+        sscanf(buf, "%d", &uid);
+
+        mds_flush_lsd(uid);
+#ifdef ENABLE_GSS
+        lgss_svc_cache_flush(uid);
+#endif
+        return count;
+}
+
 struct lprocfs_vars lprocfs_mds_module_vars[] = {
-        { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
+        { "num_refs",                   lprocfs_rd_numrefs, 0, 0 },
+        /* LSD stuff */
+        { "lsd_expire_interval",        lprocfs_rd_lsd_expire,
+                                        lprocfs_wr_lsd_expire, 0},
+        { "lsd_acquire_expire",         lprocfs_rd_lsd_ac_expire,
+                                        lprocfs_wr_lsd_ac_expire, 0},
+        { "lsd_upcall",                 lprocfs_rd_lsd_upcall,
+                                        lprocfs_wr_lsd_upcall, 0},
+        { "lsd_flush",                  0, lprocfs_wr_lsd_flush, 0},
+        { "lsd_downcall",               0, lprocfs_wr_lsd_downcall, 0},
         { 0 }
 };
 
@@ -184,8 +317,7 @@ struct lprocfs_vars lprocfs_mdt_module_vars[] = {
         { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
         { 0 }
 };
-
-#endif
+#endif /* LPROCFS */
 
 struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars,
                                                      lprocfs_mds_obd_vars},