[MINIOS PATCH v3 02/12] remove gnttab specific member from struct file

[Juergen Gross <jgross@suse.com>]

The gnttab specific union member in struct file is no longer
needed, so remove it.

The gnttab file type and its associated handling can be removed, too,
as libxengnttab is now supplying a struct file_ops via a call of
alloc_file_type().

This removes all contents of CONFIG_LIBXENGNTTAB guarded sections, so
this config option can be removed.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 Config.mk                     | 1 -
 arch/x86/testbuild/all-no     | 1 -
 arch/x86/testbuild/all-yes    | 1 -
 arch/x86/testbuild/newxen-yes | 1 -
 gntmap.c                      | 2 +-
 include/lib.h                 | 4 +---
 lib/sys.c                     | 5 -----
 7 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/Config.mk b/Config.mk
index 52eb26d8..1a24b30e 100644
--- a/Config.mk
+++ b/Config.mk
@@ -200,7 +200,6 @@ CONFIG-n += CONFIG_PARAVIRT
 endif
 # Support legacy CONFIG_XC value
 CONFIG_XC ?= $(libc)
-CONFIG-$(CONFIG_XC) += CONFIG_LIBXENGNTTAB
 
 CONFIG-$(lwip) += CONFIG_LWIP
 
diff --git a/arch/x86/testbuild/all-no b/arch/x86/testbuild/all-no
index 15c954ff..f79a1012 100644
--- a/arch/x86/testbuild/all-no
+++ b/arch/x86/testbuild/all-no
@@ -14,7 +14,6 @@ CONFIG_KBDFRONT = n
 CONFIG_CONSFRONT = n
 CONFIG_XENBUS = n
 CONFIG_LIBXS = n
-CONFIG_LIBXENGNTTAB = n
 CONFIG_LWIP = n
 CONFIG_BALLOON = n
 CONFIG_USE_XEN_CONSOLE = n
diff --git a/arch/x86/testbuild/all-yes b/arch/x86/testbuild/all-yes
index 9964d42f..faa3af32 100644
--- a/arch/x86/testbuild/all-yes
+++ b/arch/x86/testbuild/all-yes
@@ -17,5 +17,4 @@ CONFIG_LIBXS = y
 CONFIG_BALLOON = y
 CONFIG_USE_XEN_CONSOLE = y
 # The following are special: they need support from outside
-CONFIG_LIBXENGNTTAB = n
 CONFIG_LWIP = n
diff --git a/arch/x86/testbuild/newxen-yes b/arch/x86/testbuild/newxen-yes
index c2519938..dc83e670 100644
--- a/arch/x86/testbuild/newxen-yes
+++ b/arch/x86/testbuild/newxen-yes
@@ -18,5 +18,4 @@ CONFIG_BALLOON = y
 CONFIG_USE_XEN_CONSOLE = y
 XEN_INTERFACE_VERSION=__XEN_LATEST_INTERFACE_VERSION__
 # The following are special: they need support from outside
-CONFIG_LIBXENGNTTAB = n
 CONFIG_LWIP = n
diff --git a/gntmap.c b/gntmap.c
index 6fa1dac1..3422ab23 100644
--- a/gntmap.c
+++ b/gntmap.c
@@ -3,7 +3,7 @@
  *
  * Diego Ongaro <diego.ongaro@citrix.com>, July 2008
  *
- * Files of type FTYPE_GNTMAP contain a gntmap, which is an array of
+ * Files of libxengnttab contain a gntmap, which is an array of
  * (host address, grant handle) pairs. Grant handles come from a hypervisor map
  * operation and are needed for the corresponding unmap.
  *
diff --git a/include/lib.h b/include/lib.h
index 5f24be5d..5838b0d4 100644
--- a/include/lib.h
+++ b/include/lib.h
@@ -170,8 +170,7 @@ extern struct wait_queue_head event_queue;
 #define FTYPE_TPMFRONT  10
 #define FTYPE_TPM_TIS   11
 #define FTYPE_XENBUS    12
-#define FTYPE_GNTMAP    13
-#define FTYPE_N         14
+#define FTYPE_N         13
 #define FTYPE_SPARE     16
 
 struct file {
@@ -181,7 +180,6 @@ struct file {
     union {
         int fd; /* Any fd from an upper layer. */
         void *dev;
-	struct gntmap gntmap;
     };
 };
 
diff --git a/lib/sys.c b/lib/sys.c
index 34f0193d..6ba26294 100644
--- a/lib/sys.c
+++ b/lib/sys.c
@@ -533,11 +533,6 @@ int close(int fd)
             res = lwip_close(files[fd].fd);
             break;
 #endif
-#ifdef CONFIG_LIBXENGNTTAB
-	case FTYPE_GNTMAP:
-	    minios_gnttab_close_fd(fd);
-            break;
-#endif
 #ifdef CONFIG_NETFRONT
 	case FTYPE_TAP:
 	    shutdown_netfront(files[fd].dev);
-- 
2.26.2