From 28397cae4102ac3f08576ebaf071ad92683097e8 Mon Sep 17 00:00:00 2001 From: Emmanuel Dreyfus Date: Thu, 2 Apr 2015 15:51:30 +0200 Subject: Avoid conflict between contrib/uuid and system uuid glusterfs relies on Linux uuid implementation, which API is incompatible with most other systems's uuid. As a result, libglusterfs has to embed contrib/uuid, which is the Linux implementation, on non Linux systems. This implementation is incompatible with systtem's built in, but the symbols have the same names. Usually this is not a problem because when we link with -lglusterfs, libc's symbols are trumped. However there is a problem when a program not linked with -lglusterfs will dlopen() glusterfs component. In such a case, libc's uuid implementation is already loaded in the calling program, and it will be used instead of libglusterfs's implementation, causing crashes. A possible workaround is to use pre-load libglusterfs in the calling program (using LD_PRELOAD on NetBSD for instance), but such a mechanism is not portable, nor is it flexible. A much better approach is to rename libglusterfs's uuid_* functions to gf_uuid_* to avoid any possible conflict. This is what this change attempts. BUG: 1206587 Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a Signed-off-by: Emmanuel Dreyfus Reviewed-on: http://review.gluster.org/10017 Tested-by: Gluster Build System Reviewed-by: Niels de Vos --- xlators/cluster/dht/src/dht-layout.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'xlators/cluster/dht/src/dht-layout.c') diff --git a/xlators/cluster/dht/src/dht-layout.c b/xlators/cluster/dht/src/dht-layout.c index 15b183861a7..bbac904743e 100644 --- a/xlators/cluster/dht/src/dht-layout.c +++ b/xlators/cluster/dht/src/dht-layout.c @@ -667,7 +667,7 @@ dht_layout_normalize (xlator_t *this, loc_t *loc, dht_layout_t *layout) goto out; } - uuid_unparse(loc->gfid, gfid); + gf_uuid_unparse(loc->gfid, gfid); ret = dht_layout_anomalies (this, loc, layout, &holes, &overlaps, @@ -733,7 +733,7 @@ dht_layout_dir_mismatch (xlator_t *this, dht_layout_t *layout, xlator_t *subvol, char gfid[GF_UUID_BUF_SIZE] = {0}; if(loc && loc->inode) - uuid_unparse(loc->inode->gfid, gfid); + gf_uuid_unparse(loc->inode->gfid, gfid); for (idx = 0; idx < layout->cnt; idx++) { if (layout->list[idx].xlator == subvol) { -- cgit