From: Daniel Hokka Zakrisson <dhokka@cs.princeton.edu>
Date: Wed, 18 Jul 2007 14:58:29 +0000 (+0000)
Subject: skip the network context setup if it already exists
X-Git-Tag: util-vserver-0.30.214-1~62
X-Git-Url: http://git.onelab.eu/?p=util-vserver.git;a=commitdiff_plain;h=49591fe388c97f7e7573c88ad9fe29cf2e1b5ba1

skip the network context setup if it already exists
---

diff --git a/lib/planetlab.c b/lib/planetlab.c
index 902a721..44ac625 100644
--- a/lib/planetlab.c
+++ b/lib/planetlab.c
@@ -56,8 +56,11 @@ create_context(xid_t ctx, uint64_t bcaps, struct sliver_resources *slr)
   struct vc_net_flags  vc_nf;
 
   /* Create network context */
-  if (vc_net_create(ctx) == VC_NOCTX)
+  if (vc_net_create(ctx) == VC_NOCTX) {
+    if (errno == EEXIST)
+      goto process;
     return -1;
+  }
 
   /* Make the network context persistent */
   vc_nf.mask = vc_nf.flagword = VC_NXF_PERSISTENT;
@@ -72,6 +75,7 @@ create_context(xid_t ctx, uint64_t bcaps, struct sliver_resources *slr)
   if (vc_net_add(ctx, &vc_net) == -1)
     return -1;
 
+process:
   /*
    * Create context info - this sets the STATE_SETUP and STATE_INIT flags.
    */
@@ -125,7 +129,7 @@ pl_chcontext(xid_t ctx, uint64_t bcaps, struct sliver_resources *slr)
 	    return -1;
 
 	  /* context doesn't exist - create it */
-	  if (create_context(ctx, bcaps,slr))
+	  if (create_context(ctx, bcaps, slr))
 	    {
 	      if (errno == EEXIST)
 		/* another process beat us in a race */
diff --git a/src/dlimit.h b/src/dlimit.h
deleted file mode 100644
index 5cbb1a1..0000000
--- a/src/dlimit.h
+++ /dev/null
@@ -1,76 +0,0 @@
-#ifndef _VX_DLIMIT_H
-#define _VX_DLIMIT_H
-
-#include "virtual.h"
-// #include "switch.h"
-
-/*  inode vserver commands */
-
-#define VCMD_add_dlimit		VC_CMD(DLIMIT, 1, 0)
-#define VCMD_rem_dlimit		VC_CMD(DLIMIT, 2, 0)
-
-#define VCMD_set_dlimit		VC_CMD(DLIMIT, 5, 0)
-#define VCMD_get_dlimit		VC_CMD(DLIMIT, 6, 0)
-
-
-struct  vcmd_ctx_dlimit_base_v0 {
-	char *name;
-	uint32_t flags;
-};
-
-struct  vcmd_ctx_dlimit_v0 {
-	char *name;
-	uint32_t space_used;			/* used space in kbytes */
-	uint32_t space_total;			/* maximum space in kbytes */
-	uint32_t inodes_used;			/* used inodes */
-	uint32_t inodes_total;			/* maximum inodes */
-	uint32_t reserved;			/* reserved for root in % */
-	uint32_t flags;
-};
-
-#define CDLIM_UNSET             (0ULL)
-#define CDLIM_INFINITY          (~0ULL)
-#define CDLIM_KEEP              (~1ULL)
-
-
-#ifdef	__KERNEL__
-
-struct super_block;
-
-struct dl_info {
-	struct hlist_node dl_hlist;		/* linked list of contexts */
-	struct rcu_head dl_rcu;			/* the rcu head */
-	xid_t dl_xid;				/* context id */
-	atomic_t dl_usecnt;			/* usage count */
-	atomic_t dl_refcnt;			/* reference count */
-
-	struct super_block *dl_sb;		/* associated superblock */
-
-	struct rw_semaphore dl_sem;		/* protect the values */
-
-	uint64_t dl_space_used;			/* used space in bytes */
-	uint64_t dl_space_total;		/* maximum space in bytes */
-	uint32_t dl_inodes_used;		/* used inodes */
-	uint32_t dl_inodes_total;		/* maximum inodes */
-
-	unsigned int dl_nrlmult;		/* non root limit mult */
-};
-
-extern void rcu_free_dl_info(void *);
-extern void unhash_dl_info(struct dl_info *);
-
-struct kstatfs;
-
-extern void vx_vsi_statfs(struct super_block *, struct kstatfs *);
-
-
-extern int vc_add_dlimit(uint32_t, void __user *);
-extern int vc_rem_dlimit(uint32_t, void __user *);
-
-extern int vc_set_dlimit(uint32_t, void __user *);
-extern int vc_get_dlimit(uint32_t, void __user *);
-
-
-#endif	/* __KERNEL__ */
-
-#endif	/* _VX_DLIMIT_H */