LU-8303 lnet: make connection more stable with packet loss

[fs/lustre-release.git] / lustre / mdd / mdd_lproc.c

diff --git a/lustre/mdd/mdd_lproc.c b/lustre/mdd/mdd_lproc.c
index 7bf5e33..099fc1a 100644 (file)
--- a/lustre/mdd/mdd_lproc.c
+++ b/lustre/mdd/mdd_lproc.c
@@ -50,7 +50,7 @@
 #include "mdd_internal.h"
 
 static ssize_t
-mdd_atime_diff_seq_write(struct file *file, const char *buffer,
+mdd_atime_diff_seq_write(struct file *file, const char __user *buffer,
                         size_t count, loff_t *off)
 {
        struct seq_file *m = file->private_data;
@@ -78,7 +78,8 @@ static int mdd_atime_diff_seq_show(struct seq_file *m, void *data)
 {
        struct mdd_device *mdd = m->private;
 
-       return seq_printf(m, "%lu\n", mdd->mdd_atime_diff);
+       seq_printf(m, "%lu\n", mdd->mdd_atime_diff);
+       return 0;
 }
 LPROC_SEQ_FOPS(mdd_atime_diff);
 
@@ -97,7 +98,7 @@ static int mdd_changelog_mask_seq_show(struct seq_file *m, void *data)
 }
 
 static ssize_t
-mdd_changelog_mask_seq_write(struct file *file, const char *buffer,
+mdd_changelog_mask_seq_write(struct file *file, const char __user *buffer,
                             size_t count, loff_t *off)
 {
        struct seq_file *m = file->private_data;
@@ -177,29 +178,83 @@ static int mdd_changelog_users_seq_show(struct seq_file *m, void *data)
 }
 LPROC_SEQ_FOPS_RO(mdd_changelog_users);
 
+static int mdd_changelog_size_ctxt(const struct lu_env *env,
+                                  struct mdd_device *mdd,
+                                  int index, __u64 *val)
+{
+       struct llog_ctxt        *ctxt;
+
+       ctxt = llog_get_context(mdd2obd_dev(mdd),
+                               index);
+       if (ctxt == NULL)
+               return -ENXIO;
+
+       if (!(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
+               CERROR("%s: ChangeLog has wrong flags: rc = %d\n",
+                      ctxt->loc_obd->obd_name, -EINVAL);
+               llog_ctxt_put(ctxt);
+               return -EINVAL;
+       }
+
+       *val += llog_cat_size(env, ctxt->loc_handle);
+
+       llog_ctxt_put(ctxt);
+
+       return 0;
+}
+
+static int mdd_changelog_size_seq_show(struct seq_file *m, void *data)
+{
+       struct lu_env            env;
+       struct mdd_device       *mdd = m->private;
+       __u64                    tmp = 0;
+       int                      rc;
+
+       rc = lu_env_init(&env, LCT_LOCAL);
+       if (rc)
+               return rc;
+
+       rc = mdd_changelog_size_ctxt(&env, mdd, LLOG_CHANGELOG_ORIG_CTXT, &tmp);
+       if (rc) {
+               lu_env_fini(&env);
+               return rc;
+       }
+
+       rc = mdd_changelog_size_ctxt(&env, mdd, LLOG_CHANGELOG_USER_ORIG_CTXT,
+                                    &tmp);
+
+       seq_printf(m, LPU64"\n", tmp);
+       lu_env_fini(&env);
+       return rc;
+}
+LPROC_SEQ_FOPS_RO(mdd_changelog_size);
+
 static int mdd_sync_perm_seq_show(struct seq_file *m, void *data)
 {
        struct mdd_device *mdd = m->private;
 
        LASSERT(mdd != NULL);
-       return seq_printf(m, "%d\n", mdd->mdd_sync_permission);
+       seq_printf(m, "%d\n", mdd->mdd_sync_permission);
+       return 0;
 }
 
 static ssize_t
-mdd_sync_perm_seq_write(struct file *file, const char *buffer,
+mdd_sync_perm_seq_write(struct file *file, const char __user *buffer,
                        size_t count, loff_t *off)
 {
        struct seq_file *m = file->private_data;
        struct mdd_device *mdd = m->private;
-        int val, rc;
+       int rc;
+       __s64 val;
 
-        LASSERT(mdd != NULL);
-        rc = lprocfs_write_helper(buffer, count, &val);
-        if (rc)
-                return rc;
+       LASSERT(mdd != NULL);
+       rc = lprocfs_str_to_s64(buffer, count, &val);
+       if (rc)
+               return rc;
 
-        mdd->mdd_sync_permission = !!val;
-        return count;
+       mdd->mdd_sync_permission = !!val;
+
+       return count;
 }
 LPROC_SEQ_FOPS(mdd_sync_perm);
 
@@ -212,18 +267,20 @@ static int mdd_lfsck_speed_limit_seq_show(struct seq_file *m, void *data)
 }
 
 static ssize_t
-mdd_lfsck_speed_limit_seq_write(struct file *file, const char *buffer,
+mdd_lfsck_speed_limit_seq_write(struct file *file, const char __user *buffer,
                                size_t count, loff_t *off)
 {
        struct seq_file *m = file->private_data;
        struct mdd_device *mdd = m->private;
-       __u32 val;
+       __s64 val;
        int rc;
 
        LASSERT(mdd != NULL);
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = lprocfs_str_to_s64(buffer, count, &val);
        if (rc != 0)
                return rc;
+       if (val < 0 || val > INT_MAX)
+               return -ERANGE;
 
        rc = lfsck_set_speed(mdd->mdd_bottom, val);
        return rc != 0 ? rc : count;
@@ -239,18 +296,22 @@ static int mdd_lfsck_async_windows_seq_show(struct seq_file *m, void *data)
 }
 
 static ssize_t
-mdd_lfsck_async_windows_seq_write(struct file *file, const char *buffer,
+mdd_lfsck_async_windows_seq_write(struct file *file, const char __user *buffer,
                                  size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
        struct mdd_device *mdd = m->private;
-       __u32              val;
+       __s64              val;
        int                rc;
 
        LASSERT(mdd != NULL);
-       rc = lprocfs_write_helper(buffer, count, &val);
-       if (rc == 0)
-               rc = lfsck_set_windows(mdd->mdd_bottom, val);
+       rc = lprocfs_str_to_s64(buffer, count, &val);
+       if (rc)
+               return rc;
+       if (val < 0 || val > INT_MAX)
+               return -ERANGE;
+
+       rc = lfsck_set_windows(mdd->mdd_bottom, val);
 
        return rc != 0 ? rc : count;
 }
@@ -283,6 +344,8 @@ static struct lprocfs_vars lprocfs_mdd_obd_vars[] = {
          .fops =       &mdd_changelog_mask_fops        },
        { .name =       "changelog_users",
          .fops =       &mdd_changelog_users_fops       },
+       { .name =       "changelog_size",
+         .fops =       &mdd_changelog_size_fops        },
        { .name =       "sync_permission",
          .fops =       &mdd_sync_perm_fops             },
        { .name =       "lfsck_speed_limit",