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authorRaghavendra G <raghavendra@gluster.com>2009-11-18 01:19:37 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-11-18 21:14:54 -0800
commit2bf35da812016c8adb05b0aa90c9f0b25e50a878 (patch)
tree677e96d018784f30dab2ccf1dfab7feb5817fb05 /libglusterfsclient
parent64a4b1f78ee719f33928f4de9abac2a09ce84f21 (diff)
libglusterfsclient: fix memory leak.
- glusterfs_glh_getxattr was implemented using libgf_client_lookup. Hence the inode corresponding to the path on which getxattr was done was refed twice - one during path_lookup and the other in libgf_client_lookup - but unrefed only once. - with inode generation number changes the inode returned by inode_link may not be the same as the input argument. Hence the inode returned by inode_link should be used, not the one returned in libgf_client_lookup_cbk. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 369 (Samba does not work with booster.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=369
Diffstat (limited to 'libglusterfsclient')
-rwxr-xr-xlibglusterfsclient/src/libglusterfsclient.c60
1 files changed, 16 insertions, 44 deletions
diff --git a/libglusterfsclient/src/libglusterfsclient.c b/libglusterfsclient/src/libglusterfsclient.c
index 3cc1d50..a298bd3 100755
--- a/libglusterfsclient/src/libglusterfsclient.c
+++ b/libglusterfsclient/src/libglusterfsclient.c
@@ -2067,7 +2067,8 @@ libgf_client_lookup_cbk (call_frame_t *frame,
parent = local->fop.lookup.loc->parent;
libgf_transform_iattr (ctx, inode, buf);
if (inode->ino != 1) {
- inode_link (inode, parent, local->fop.lookup.loc->name, buf);
+ inode = inode_link (inode, parent,
+ local->fop.lookup.loc->name, buf);
}
inode_lookup (inode);
@@ -2179,6 +2180,12 @@ libgf_client_lookup (libglusterfs_client_ctx_t *ctx,
if (dict)
*dict = dict_ref (stub->args.lookup_cbk.dict);
+
+ if (inode != loc->inode) {
+ inode_unref (loc->inode);
+ loc->inode = inode_ref (inode);
+ }
+
out:
call_stub_destroy (stub);
return op_ret;
@@ -2571,9 +2578,12 @@ libgf_client_getxattr (libglusterfs_client_ctx_t *ctx,
/* Don't return the value for '\0' */
op_ret = value_data->len;
- copy_len = size < value_data->len ?
- size : value_data->len;
- memcpy (value, value_data->data, copy_len);
+ if ((size > 0) && (value != NULL)) {
+ copy_len = size < value_data->len ?
+ size : value_data->len;
+ memcpy (value, value_data->data, copy_len);
+ op_ret = copy_len;
+ }
} else {
errno = ENODATA;
op_ret = -1;
@@ -2594,10 +2604,8 @@ __glusterfs_glh_getxattr (glusterfs_handle_t handle, const char *path,
{
int32_t op_ret = -1;
loc_t loc = {0, };
- dict_t *dict = NULL;
libglusterfs_client_ctx_t *ctx = handle;
char *file = NULL;
- dict_t *xattr_req = NULL;
char *pathres = NULL, *tmp = NULL;
GF_VALIDATE_OR_GOTO (LIBGF_XL_NAME, ctx, out);
@@ -2645,21 +2653,13 @@ __glusterfs_glh_getxattr (glusterfs_handle_t handle, const char *path,
goto out;
}
- xattr_req = dict_new ();
- op_ret = dict_set (xattr_req, (char *)name,
- data_from_uint64 (size));
- if (op_ret == -1) {
- /* TODO: set proper error code */
- goto out;
- }
-
if (whichop == LIBGF_DO_LGETXATTR)
goto do_getx;
if (!S_ISLNK (loc.inode->st_mode))
goto do_getx;
- libgf_client_loc_wipe (&loc);
+ libgf_client_loc_wipe (&loc);
op_ret = libgf_realpath_loc_fill (ctx, (char *)pathres, &loc);
if (op_ret == -1) {
gf_log (LIBGF_XL_NAME, GF_LOG_ERROR, "realpath failed");
@@ -2667,41 +2667,13 @@ __glusterfs_glh_getxattr (glusterfs_handle_t handle, const char *path,
}
do_getx:
- op_ret = libgf_client_lookup (ctx, &loc, NULL, &dict, xattr_req);
- if (op_ret == 0) {
- data_t *value_data = dict_get (dict, (char *)name);
-
- if (value_data) {
- int32_t copy_len = 0;
-
- /* Don't return the value for '\0' */
- op_ret = value_data->len;
-
- if ((size > 0) && (value != NULL)) {
- copy_len = size < value_data->len ?
- size : value_data->len;
- memcpy (value, value_data->data, copy_len);
- op_ret = copy_len;
- }
- } else {
- errno = ENODATA;
- op_ret = -1;
- }
- }
+ op_ret = libgf_client_getxattr (ctx, &loc, name, value, size);
out:
if (tmp) {
FREE (tmp);
}
- if (xattr_req) {
- dict_unref (xattr_req);
- }
-
- if (dict) {
- dict_unref (dict);
- }
-
if (pathres)
FREE (pathres);