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authorshishir gowda <sgowda@redhat.com>2013-05-22 09:58:15 +0530
committerVijay Bellur <vbellur@redhat.com>2013-05-31 06:44:11 -0700
commit3c22cf86ad244f87dafd9b7a9f82331968879c15 (patch)
tree7ff52cca4258cfa93562c51db3fa1ef085924946 /xlators/cluster/dht/src/dht-linkfile.c
parent599c6b472869cfaf0058e7b169de204450a41948 (diff)
cluster/dht: Handle linkfile creation with EEXIST error
If linkfile create fails with EEXISTS, then check if the file is a linkfile for the same file. If not, return the error Change-Id: Iab42db54422dea69de0049b5196365e65edadd91 BUG: 966858 Signed-off-by: shishir gowda <sgowda@redhat.com> Reviewed-on: http://review.gluster.org/5060 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/cluster/dht/src/dht-linkfile.c')
-rw-r--r--xlators/cluster/dht/src/dht-linkfile.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/xlators/cluster/dht/src/dht-linkfile.c b/xlators/cluster/dht/src/dht-linkfile.c
index 6360c73e3..13d791a8f 100644
--- a/xlators/cluster/dht/src/dht-linkfile.c
+++ b/xlators/cluster/dht/src/dht-linkfile.c
@@ -19,6 +19,35 @@
#include "compat.h"
#include "dht-common.h"
+int
+dht_linkfile_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno,
+ inode_t *inode, struct iatt *stbuf, dict_t *xattr,
+ struct iatt *postparent)
+{
+ char is_linkfile = 0;
+ dht_conf_t *conf = NULL;
+ dht_local_t *local = NULL;
+ call_frame_t *prev = NULL;
+
+ if (!op_ret)
+ goto out;
+
+ local = frame->local;
+ prev = cookie;
+ conf = this->private;
+
+ is_linkfile = check_is_linkfile (inode, stbuf, xattr,
+ conf->link_xattr_name);
+ if (!is_linkfile)
+ gf_log (this->name, GF_LOG_WARNING, "got non-linkfile %s:%s",
+ prev->this->name, local->loc.path);
+out:
+ local->linkfile.linkfile_cbk (frame, cookie, this, op_ret, op_errno,
+ inode, stbuf, postparent, postparent,
+ xattr);
+ return 0;
+}
#define is_equal(a, b) (a == b)
int
@@ -28,6 +57,11 @@ dht_linkfile_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *postparent, dict_t *xdata)
{
dht_local_t *local = NULL;
+ xlator_t *subvol = NULL;
+ call_frame_t *prev = NULL;
+ dict_t *xattrs = NULL;
+ dht_conf_t *conf = NULL;
+ int ret = -1;
local = frame->local;
@@ -36,9 +70,34 @@ dht_linkfile_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
FRAME_SU_UNDO (frame, dht_local_t);
+ if (op_ret && (op_errno == EEXIST)) {
+ conf = this->private;
+ prev = cookie;
+ subvol = prev->this;
+ if (!subvol)
+ goto out;
+ xattrs = dict_new ();
+ if (!xattrs)
+ goto out;
+ ret = dict_set_uint32 (xattrs, conf->link_xattr_name, 256);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set linkto key");
+ goto out;
+ }
+
+ STACK_WIND (frame, dht_linkfile_lookup_cbk, subvol,
+ subvol->fops->lookup, &local->loc, xattrs);
+ if (xattrs)
+ dict_unref (xattrs);
+ return 0;
+ }
+out:
local->linkfile.linkfile_cbk (frame, cookie, this, op_ret, op_errno,
inode, stbuf, preparent, postparent,
xdata);
+ if (xattrs)
+ dict_unref (xattrs);
return 0;
}