xread/xwrite: clip MAX_IO_SIZE to SSIZE_MAX

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 7fe0bffaf8b875b40b5e4e0e5c207f978c932691..7025938ae30f2ce3104b27f66bf6e1f294edb810 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -97,7 +97,7 @@ static int read_tree_some(struct tree *tree, const char **pathspec)
        return 0;
 }
 
-static int skip_same_name(struct cache_entry *ce, int pos)
+static int skip_same_name(const struct cache_entry *ce, int pos)
 {
        while (++pos < active_nr &&
               !strcmp(active_cache[pos]->name, ce->name))
@@ -105,7 +105,7 @@ static int skip_same_name(struct cache_entry *ce, int pos)
        return pos;
 }
 
-static int check_stage(int stage, struct cache_entry *ce, int pos)
+static int check_stage(int stage, const struct cache_entry *ce, int pos)
 {
        while (pos < active_nr &&
               !strcmp(active_cache[pos]->name, ce->name)) {
@@ -119,7 +119,7 @@ static int check_stage(int stage, struct cache_entry *ce, int pos)
                return error(_("path '%s' does not have their version"), ce->name);
 }
 
-static int check_stages(unsigned stages, struct cache_entry *ce, int pos)
+static int check_stages(unsigned stages, const struct cache_entry *ce, int pos)
 {
        unsigned seen = 0;
        const char *name = ce->name;
@@ -321,7 +321,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 
        /* Any unmerged paths? */
        for (pos = 0; pos < active_nr; pos++) {
-               struct cache_entry *ce = active_cache[pos];
+               const struct cache_entry *ce = active_cache[pos];
                if (ce->ce_flags & CE_MATCHED) {
                        if (!ce_stage(ce))
                                continue;