Author: gleb
Date: Fri May 18 10:01:31 2012
New Revision: 235601
URL: http://svn.freebsd.org/changeset/base/235601
Log:
Don't use ino_t in dumprestore protocol definition.
Since ino_t size is about to change to 64-bits, replace ino_t used in
dump protocol definition with 32-bit dump_ino_t to preserve backward
compatibility. At some point, it may be necessary to use spare fields
in struct in order to fully support 64-bit inode numbers.
Sponsored by: Google Summer of Code 2011
Modified:
head/include/protocols/dumprestore.h
Modified: head/include/protocols/dumprestore.h
==============================================================================
--- head/include/protocols/dumprestore.h Fri May 18 09:22:21 2012
(r235600)
+++ head/include/protocols/dumprestore.h Fri May 18 10:01:31 2012
(r235601)
@@ -65,6 +65,15 @@
#endif
#define CHECKSUM (int)84446
+/*
+ * Since ino_t size is changing to 64-bits, yet we desire this structure to
+ * remain compatible with exiting dump formats, we do NOT use ino_t here,
+ * but rather define a 32-bit type in its place. At some point, it may be
+ * necessary to use some of the c_spare[] in order to fully support 64-bit
+ * inode numbers.
+ */
+typedef uint32_t dump_ino_t;
+
union u_spcl {
char dummy[TP_BSIZE];
struct s_spcl {
@@ -73,7 +82,7 @@ union u_spcl {
int32_t c_old_ddate; /* date of previous dump */
int32_t c_volume; /* dump volume number */
int32_t c_old_tapea; /* logical block of this record */
- ino_t c_inumber; /* number of inode */
+ dump_ino_t c_inumber; /* number of inode */
int32_t c_magic; /* magic number (see above) */
int32_t c_checksum; /* record checksum */
/*
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