fast-import: duplicate into history rather than passing ownership

diff --git a/read-cache.c b/read-cache.c
index 32816763bd6dbe3d5e1784b3a39bb8c431ec82f9..52ffa8a3139f2e427fadb7d233fb4910819becc9 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -549,7 +549,7 @@ static int index_name_stage_pos(const struct index_state *istate, const char *na
        first = 0;
        last = istate->cache_nr;
        while (last > first) {
-               int next = (last + first) >> 1;
+               int next = first + ((last - first) >> 1);
                struct cache_entry *ce = istate->cache[next];
                int cmp = cache_name_stage_compare(name, namelen, stage, ce->name, ce_namelen(ce), ce_stage(ce));
                if (!cmp)
@@ -2037,7 +2037,7 @@ static void *load_cache_entries_thread(void *_data)
 }
 
 static unsigned long load_cache_entries_threaded(struct index_state *istate, const char *mmap, size_t mmap_size,
-                       unsigned long src_offset, int nr_threads, struct index_entry_offset_table *ieot)
+                                                int nr_threads, struct index_entry_offset_table *ieot)
 {
        int i, offset, ieot_blocks, ieot_start, err;
        struct load_cache_entries_thread_data *data;
@@ -2140,7 +2140,7 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
        if (mmap_size < sizeof(struct cache_header) + the_hash_algo->rawsz)
                die(_("%s: index file smaller than expected"), path);
 
-       mmap = xmmap(NULL, mmap_size, PROT_READ, MAP_PRIVATE, fd, 0);
+       mmap = xmmap_gently(NULL, mmap_size, PROT_READ, MAP_PRIVATE, fd, 0);
        if (mmap == MAP_FAILED)
                die_errno(_("%s: unable to map index file"), path);
        close(fd);
@@ -2198,7 +2198,7 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
                ieot = read_ieot_extension(mmap, mmap_size, extension_offset);
 
        if (ieot) {
-               src_offset += load_cache_entries_threaded(istate, mmap, mmap_size, src_offset, nr_threads, ieot);
+               src_offset += load_cache_entries_threaded(istate, mmap, mmap_size, nr_threads, ieot);
                free(ieot);
        } else {
                src_offset += load_all_cache_entries(istate, mmap, mmap_size, src_offset);