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STABLE14-release-avoid-negative-time-20060124

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avoid any possibility of time going negative when releasing incrementally


(cherry picked from commit 179b4c31d93b511a5762c818a47cddc0e364c9d3)
This commit is contained in:
Jeffrey Hutzelman 2006-01-25 03:49:53 +00:00 committed by Derrick Brashear
parent d4f7d158b6
commit 079f1aeb3b
1 changed files with 6 additions and 5 deletions
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11
src/volser/vsprocs.c
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@ -56,6 +56,7 @@ RCSID
#include <errno.h> #include <errno.h>
#define ERRCODE_RANGE 8 /* from error_table.h */ #define ERRCODE_RANGE 8 /* from error_table.h */
#define CLOCKSKEW 2 /* not really skew, but resolution */ #define CLOCKSKEW 2 /* not really skew, but resolution */
#define CLOCKADJ(x) (((x) < CLOCKSKEW) ? 0 : (x) - CLOCKSKEW)
/* for UV_MoveVolume() recovery */ /* for UV_MoveVolume() recovery */
@ -1329,7 +1330,7 @@ UV_MoveVolume2(afs_int32 afromvol, afs_int32 afromserver, afs_int32 afrompart,
newVol); newVol);
VDONE; VDONE;
fromDate = tstatus.creationDate - CLOCKSKEW; fromDate = CLOCKADJ(tstatus.creationDate);
} else { } else {
/* With RV_NOCLONE, just do a full copy from the source */ /* With RV_NOCLONE, just do a full copy from the source */
fromDate = 0; fromDate = 0;
@ -2162,7 +2163,7 @@ UV_CopyVolume2(afs_int32 afromvol, afs_int32 afromserver, afs_int32 afrompart,
cloneVol); cloneVol);
VDONE; VDONE;
fromDate = tstatus.creationDate - CLOCKSKEW; fromDate = CLOCKADJ(tstatus.creationDate);
} else { } else {
fromDate = 0; fromDate = 0;
} }
@ -2180,7 +2181,7 @@ UV_CopyVolume2(afs_int32 afromvol, afs_int32 afromserver, afs_int32 afrompart,
VDONE; VDONE;
/* Using the update date should be OK here, but add some fudge */ /* Using the update date should be OK here, but add some fudge */
cloneFromDate = tstatus.updateDate - CLOCKSKEW; cloneFromDate = CLOCKADJ(tstatus.updateDate);
if ((flags & RV_NOCLONE)) if ((flags & RV_NOCLONE))
fromDate = cloneFromDate; fromDate = cloneFromDate;
@ -3087,8 +3088,8 @@ GetTrans(struct nvldbentry *vldbEntryPtr, afs_int32 index,
code); code);
goto fail; goto fail;
} }
*crtimePtr = tstatus.creationDate - CLOCKSKEW; *crtimePtr = CLOCKADJ(tstatus.creationDate);
*uptimePtr = tstatus.updateDate - CLOCKSKEW; *uptimePtr = CLOCKADJ(tstatus.updateDate);
} }
return 0; return 0;