Branch: b_new_cmd

[fs/lustre-release.git] / lustre / obdfilter / lproc_obdfilter.c

diff --git a/lustre/obdfilter/lproc_obdfilter.c b/lustre/obdfilter/lproc_obdfilter.c
index fa170d7..5cd3e6b 100644 (file)
--- a/lustre/obdfilter/lproc_obdfilter.c
+++ b/lustre/obdfilter/lproc_obdfilter.c
@@ -160,6 +160,41 @@ int lprocfs_filter_wr_capa_stat(struct file *file, const char *buffer,
         return count;
 }
 
+static
+int lprocfs_filter_rd_blacklist(char *page, char **start, off_t off, int count,
+                                int *eof, void *data)
+{
+        int rc;
+
+        rc = blacklist_display(page, count);
+        *eof = 1;
+        return rc;
+}
+
+static
+int lprocfs_filter_wr_blacklist(struct file *file, const char *buffer,
+                                unsigned long count, void *data)
+{
+        int add;
+        uid_t uid = -1;
+
+        if (count < 2)
+                return count;
+        if (buffer[0] == '+')
+                add = 1;
+        else if (buffer[0] == '-')
+                add = 0;
+        else
+                return count;
+
+        sscanf(buffer + 1, "%u", &uid);
+        if (add)
+                blacklist_add(uid);
+        else
+                blacklist_del(uid);
+        return count;
+}
+
 static struct lprocfs_vars lprocfs_obd_vars[] = {
         { "uuid",         lprocfs_rd_uuid,          0, 0 },
         { "blocksize",    lprocfs_rd_blksize,       0, 0 },
@@ -182,6 +217,8 @@ static struct lprocfs_vars lprocfs_obd_vars[] = {
         { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
         { "capa",         lprocfs_filter_rd_capa_stat,
                           lprocfs_filter_wr_capa_stat, 0 },
+        { "blacklist",    lprocfs_filter_rd_blacklist,
+                          lprocfs_filter_wr_blacklist, 0 },
         { 0 }
 };