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[v2,1/9] libxc/tmem/restore: Remove call to XEN_SYSCTL_TMEM_OP_SAVE_GET_VERSION

Message ID 1475259114-8693-2-git-send-email-konrad.wilk@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Konrad Rzeszutek Wilk Sept. 30, 2016, 6:11 p.m. UTC 
The only thing this hypercall returns is TMEM_SPEC_VERSION.

The comment around is also misleading - this call does not
do any domain operation.

Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

---
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>

v1: Initial submission.
v2: Added Wei's Ack.
---
 tools/libxc/xc_tmem.c | 4 ----
 1 file changed, 4 deletions(-)
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Patch

diff --git a/tools/libxc/xc_tmem.c b/tools/libxc/xc_tmem.c
index 4e5c278..31ae3f5 100644
--- a/tools/libxc/xc_tmem.c
+++ b/tools/libxc/xc_tmem.c
@@ -381,16 +381,12 @@  static int xc_tmem_restore_new_pool(
 
 int xc_tmem_restore(xc_interface *xch, int dom, int io_fd)
 {
-    uint32_t save_version;
     uint32_t this_max_pools, this_version;
     uint32_t pool_id;
     uint32_t minusone;
     uint32_t weight, cap, flags;
     int checksum = 0;
 
-    save_version = xc_tmem_control(xch,0,XEN_SYSCTL_TMEM_OP_SAVE_GET_VERSION,dom,0,0,NULL);
-    if ( save_version == -1 )
-        return -1; /* domain doesn't exist */
     if ( read_exact(io_fd, &this_version, sizeof(this_version)) )
         return -1;
     if ( read_exact(io_fd, &this_max_pools, sizeof(this_max_pools)) )