Some file systems (eg. UFS) may report negative free spave values.
Previously this caused underflow, but now it is prevented by setting
negative values to zero.
Change-Id: I821adb8a6d7a40dcbd6c65ab3541fbcd714f8aba
Conflicts:
src/df.c
uint64_t blk_reserved;
uint64_t blk_used;
uint64_t blk_reserved;
uint64_t blk_used;
- /* Sanity-check for the values in the struct */
+ /*
+ * Sanity-check for the values in the struct
+ */
+ /* Check for negative "available" byes. For example UFS can
+ * report negative free space for user. Notice. blk_reserved
+ * will start to diminish after this. */
+#if HAVE_STATVFS
+ /* Cast is needed to avoid compiler warnings.
+ * ((struct statvfs).f_bavail is unsigned (POSIX)) */
+ if (((int64_t) statbuf.f_bavail) < 0)
+ statbuf.f_bavail = 0;
+#elif HAVE_STATFS
+ if (statbuf.f_bavail < 0)
+ statbuf.f_bavail = 0;
+#endif
+ /* Make sure that f_blocks >= f_bfree >= f_bavail */
if (statbuf.f_bfree < statbuf.f_bavail)
statbuf.f_bfree = statbuf.f_bavail;
if (statbuf.f_blocks < statbuf.f_bfree)
if (statbuf.f_bfree < statbuf.f_bavail)
statbuf.f_bfree = statbuf.f_bavail;
if (statbuf.f_blocks < statbuf.f_bfree)