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Merge branch 'np/maint-huge-delta-generation'

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* np/maint-huge-delta-generation:
  fix >4GiB source delta assertion failure
This commit is contained in:
Junio C Hamano 2010-08-31 16:34:16 -07:00
commit e3efa9c12c
1 changed files with 8 additions and 1 deletions
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9
diff-delta.c
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@ -146,7 +146,14 @@ struct delta_index * create_delta_index(const void *buf, unsigned long bufsize)
/* Determine index hash size. Note that indexing skips the
first byte to allow for optimizing the Rabin's polynomial
initialization in create_delta(). */
entries = (bufsize - 1) / RABIN_WINDOW;
entries = (bufsize - 1) / RABIN_WINDOW;
if (bufsize >= 0xffffffffUL) {
/*
* Current delta format can't encode offsets into
* reference buffer with more than 32 bits.
*/
entries = 0xfffffffeU / RABIN_WINDOW;
}
hsize = entries / 4;
for (i = 4; (1u << i) < hsize && i < 31; i++);
hsize = 1 << i;