CERROR("OBD_MD_LINKNAME not set on reply\n");
GOTO(failed, rc = -EPROTO);
}
-
+
LASSERT(symlen != 0);
if (body->eadatasize != symlen) {
CERROR("inode %lu: symlink length %d not expected %d\n",
static int ll_readlink(struct dentry *dentry, char *buffer, int buflen)
{
struct inode *inode = dentry->d_inode;
- struct ll_inode_info *lli = ll_i2info(inode);
struct ptlrpc_request *request;
char *symname;
int rc;
CDEBUG(D_VFSTRACE, "VFS Op\n");
/* on symlinks lli_open_sem protects lli_symlink_name allocation/data */
- down(&lli->lli_size_sem);
+ ll_inode_size_lock(inode, 0);
rc = ll_readlink_internal(inode, &request, &symname);
if (rc)
GOTO(out, rc);
rc = vfs_readlink(dentry, buffer, buflen, symname);
ptlrpc_req_finished(request);
out:
- up(&lli->lli_size_sem);
+ ll_inode_size_unlock(inode, 0);
RETURN(rc);
}
struct nameidata *nd)
{
struct inode *inode = dentry->d_inode;
- struct ll_inode_info *lli = ll_i2info(inode);
#ifdef HAVE_VFS_INTENT_PATCHES
struct lookup_intent *it = ll_nd2it(nd);
#endif
- struct ptlrpc_request *request;
+ struct ptlrpc_request *request = NULL;
int rc;
char *symname;
ENTRY;
#endif
CDEBUG(D_VFSTRACE, "VFS Op\n");
-#if THREAD_SIZE < 8192
- /*
- * We set the limits recursive symlink to 5
- * instead of default 8 when kernel has 4k stack
- * to prevent stack overflow.
- */
- if (current->link_count >= 5) {
+ /* Limit the recursive symlink depth to 5 instead of default
+ * 8 links when kernel has 4k stack to prevent stack overflow. */
+ if (THREAD_SIZE < 8192 && current->link_count >= 5) {
rc = -ELOOP;
- GOTO(out_release, rc);
+ } else {
+ ll_inode_size_lock(inode, 0);
+ rc = ll_readlink_internal(inode, &request, &symname);
+ ll_inode_size_unlock(inode, 0);
}
-#endif
- down(&lli->lli_size_sem);
- rc = ll_readlink_internal(inode, &request, &symname);
- up(&lli->lli_size_sem);
if (rc) {
-#if THREAD_SIZE < 8192
-out_release:
-#endif
path_release(nd); /* Kernel assumes that ->follow_link()
releases nameidata on error */
GOTO(out, rc);