From 86999525240983dcbd3fe66eb40a0947730c695c Mon Sep 17 00:00:00 2001 From: shishir Date: Tue, 19 Jul 2011 16:02:12 +0530 Subject: WORM: Write Once Read Many times xlator support This xlator will allow files to be opened for write in append mode only. Mount with --worm(glusterfs) or -o worm (mount) option to enable worm xlator Change-Id: I1be02fcf2aee2182ea2c66b514357918136fabeb BUG: 3166 Reviewed-on: http://review.gluster.com/23 Tested-by: Gluster Build System Reviewed-by: Anand Avati --- libglusterfs/src/glusterfs.h | 1 + libglusterfs/src/graph.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+) (limited to 'libglusterfs') diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h index d43020282..049bb8fc0 100644 --- a/libglusterfs/src/glusterfs.h +++ b/libglusterfs/src/glusterfs.h @@ -276,6 +276,7 @@ struct _cmd_args { int debug_mode; int read_only; int acl; + int worm; int mac_compat; struct list_head xlator_options; /* list of xlator_option_t */ diff --git a/libglusterfs/src/graph.c b/libglusterfs/src/graph.c index 725425d39..acad23954 100644 --- a/libglusterfs/src/graph.c +++ b/libglusterfs/src/graph.c @@ -247,6 +247,21 @@ glusterfs_graph_acl (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx) return ret; } +int +glusterfs_graph_worm (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx) +{ + int ret = 0; + cmd_args_t *cmd_args = NULL; + + cmd_args = &ctx->cmd_args; + + if (!cmd_args->worm) + return 0; + + ret = glusterfs_graph_insert (graph, ctx, "features/worm", + "worm-autoload"); + return ret; +} int glusterfs_graph_mac_compat (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx) @@ -475,6 +490,12 @@ glusterfs_graph_prepare (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx) return -1; } + /* XXX: WORM VOLUME */ + ret = glusterfs_graph_worm (graph, ctx); + if (ret) { + gf_log ("graph", GF_LOG_ERROR, "glusterfs graph worm failed"); + return -1; + } ret = glusterfs_graph_acl (graph, ctx); if (ret) { gf_log ("graph", GF_LOG_ERROR, "glusterfs graph ACL failed"); -- cgit