diff options
Diffstat (limited to 'xlators/cluster/afr/src/afr-transaction.c')
| -rw-r--r-- | xlators/cluster/afr/src/afr-transaction.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/xlators/cluster/afr/src/afr-transaction.c b/xlators/cluster/afr/src/afr-transaction.c index 22b6997f2f7..9df8eba2192 100644 --- a/xlators/cluster/afr/src/afr-transaction.c +++ b/xlators/cluster/afr/src/afr-transaction.c @@ -57,6 +57,66 @@ afr_zero_fill_stat (afr_local_t *local) } } +/* In case of errors afr needs to choose which xdata from lower xlators it needs + * to unwind with. The way it is done is by checking if there are + * any good subvols which failed. Give preference to errnos other than + * ENOTCONN even if the child is source */ +void +afr_pick_error_xdata (afr_local_t *local, afr_private_t *priv, + inode_t *inode1, unsigned char *readable1, + inode_t *inode2, unsigned char *readable2) +{ + int s = -1;/*selection*/ + int i = 0; + unsigned char *readable = NULL; + + if (local->xdata_rsp) { + dict_unref (local->xdata_rsp); + local->xdata_rsp = NULL; + } + + readable = alloca0 (priv->child_count * sizeof (*readable)); + if (inode2 && readable2) {/*rename fop*/ + AFR_INTERSECT (readable, readable1, readable2, + priv->child_count); + } else { + memcpy (readable, readable1, + sizeof (*readable) * priv->child_count); + } + + for (i = 0; i < priv->child_count; i++) { + if (!local->replies[i].valid) + continue; + + if (local->replies[i].op_ret >= 0) + continue; + + if (local->replies[i].op_errno == ENOTCONN) + continue; + + /*Order is important in the following condition*/ + if ((s < 0) || (!readable[s] && readable[i])) + s = i; + } + + if (s != -1 && local->replies[s].xdata) { + local->xdata_rsp = dict_ref (local->replies[s].xdata); + } else if (s == -1) { + for (i = 0; i < priv->child_count; i++) { + if (!local->replies[i].valid) + continue; + + if (local->replies[i].op_ret >= 0) + continue; + + if (!local->replies[i].xdata) + continue; + local->xdata_rsp = dict_ref (local->replies[i].xdata); + break; + } + } +} + gf_boolean_t afr_needs_changelog_update (afr_local_t *local) { @@ -747,6 +807,17 @@ afr_handle_quorum (call_frame_t *frame) local->op_errno = afr_final_errno (local, priv); if (local->op_errno == 0) local->op_errno = afr_quorum_errno (priv); + switch (local->transaction.type) { + case AFR_ENTRY_TRANSACTION: + case AFR_ENTRY_RENAME_TRANSACTION: + afr_pick_error_xdata (local, priv, local->parent, + local->readable, local->parent2, + local->readable2); + break; + default: + /*TBD*/ + break; + } } int |