From ff7e6aad6d995a52e88cfeaae10cf8a768ff2358 Mon Sep 17 00:00:00 2001 From: Kjetil Barvik Date: Sun, 11 Jan 2009 19:36:42 +0100 Subject: [PATCH] Cleanup of unused symcache variable inside diff-lib.c Commit c40641b77b0274186fd1b327d5dc3246f814aaaf, 'Optimize symlink/directory detection' by Linus Torvalds, removed the 'char *symcache' parameter to the has_symlink_leading_path() function. This made all variables currently named 'symcache' inside diff-lib.c unnecessary. This also let us throw away the 'struct oneway_unpack_data', and instead directly use the 'struct rev_info *revs' member, which was the only member left after removal of the 'symcache[] array' member. The 'struct oneway_unpack_data' was introduced by the following commit: 948dd346 "diff-files: careful when inspecting work tree items" Impact: cleanup PATH_MAX bytes less memory stack usage in some cases Signed-off-by: Kjetil Barvik Signed-off-by: Junio C Hamano --- diff-lib.c | 40 +++++++++++----------------------------- 1 file changed, 11 insertions(+), 29 deletions(-) diff --git a/diff-lib.c b/diff-lib.c index ae96c64ca..a41e1ec07 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -61,14 +61,12 @@ int run_diff_files(struct rev_info *revs, unsigned int option) int silent_on_removed = option & DIFF_SILENT_ON_REMOVED; unsigned ce_option = ((option & DIFF_RACY_IS_MODIFIED) ? CE_MATCH_RACY_IS_DIRTY : 0); - char symcache[PATH_MAX]; diff_set_mnemonic_prefix(&revs->diffopt, "i/", "w/"); if (diff_unmerged_stage < 0) diff_unmerged_stage = 2; entries = active_nr; - symcache[0] = '\0'; for (i = 0; i < entries; i++) { struct stat st; unsigned int oldmode, newmode; @@ -198,11 +196,6 @@ int run_diff_files(struct rev_info *revs, unsigned int option) * diff-index */ -struct oneway_unpack_data { - struct rev_info *revs; - char symcache[PATH_MAX]; -}; - /* A file entry went away or appeared */ static void diff_index_show_file(struct rev_info *revs, const char *prefix, @@ -216,8 +209,7 @@ static void diff_index_show_file(struct rev_info *revs, static int get_stat_data(struct cache_entry *ce, const unsigned char **sha1p, unsigned int *modep, - int cached, int match_missing, - struct oneway_unpack_data *cbdata) + int cached, int match_missing) { const unsigned char *sha1 = ce->sha1; unsigned int mode = ce->ce_mode; @@ -248,25 +240,24 @@ static int get_stat_data(struct cache_entry *ce, return 0; } -static void show_new_file(struct oneway_unpack_data *cbdata, +static void show_new_file(struct rev_info *revs, struct cache_entry *new, int cached, int match_missing) { const unsigned char *sha1; unsigned int mode; - struct rev_info *revs = cbdata->revs; /* * New file in the index: it might actually be different in * the working copy. */ - if (get_stat_data(new, &sha1, &mode, cached, match_missing, cbdata) < 0) + if (get_stat_data(new, &sha1, &mode, cached, match_missing) < 0) return; diff_index_show_file(revs, "+", new, sha1, mode); } -static int show_modified(struct oneway_unpack_data *cbdata, +static int show_modified(struct rev_info *revs, struct cache_entry *old, struct cache_entry *new, int report_missing, @@ -274,9 +265,8 @@ static int show_modified(struct oneway_unpack_data *cbdata, { unsigned int mode, oldmode; const unsigned char *sha1; - struct rev_info *revs = cbdata->revs; - if (get_stat_data(new, &sha1, &mode, cached, match_missing, cbdata) < 0) { + if (get_stat_data(new, &sha1, &mode, cached, match_missing) < 0) { if (report_missing) diff_index_show_file(revs, "-", old, old->sha1, old->ce_mode); @@ -344,8 +334,7 @@ static void do_oneway_diff(struct unpack_trees_options *o, struct cache_entry *idx, struct cache_entry *tree) { - struct oneway_unpack_data *cbdata = o->unpack_data; - struct rev_info *revs = cbdata->revs; + struct rev_info *revs = o->unpack_data; int match_missing, cached; /* @@ -368,7 +357,7 @@ static void do_oneway_diff(struct unpack_trees_options *o, * Something added to the tree? */ if (!tree) { - show_new_file(cbdata, idx, cached, match_missing); + show_new_file(revs, idx, cached, match_missing); return; } @@ -381,7 +370,7 @@ static void do_oneway_diff(struct unpack_trees_options *o, } /* Show difference between old and new */ - show_modified(cbdata, tree, idx, 1, cached, match_missing); + show_modified(revs, tree, idx, 1, cached, match_missing); } static inline void skip_same_name(struct cache_entry *ce, struct unpack_trees_options *o) @@ -418,8 +407,7 @@ static int oneway_diff(struct cache_entry **src, struct unpack_trees_options *o) { struct cache_entry *idx = src[0]; struct cache_entry *tree = src[1]; - struct oneway_unpack_data *cbdata = o->unpack_data; - struct rev_info *revs = cbdata->revs; + struct rev_info *revs = o->unpack_data; if (idx && ce_stage(idx)) skip_same_name(idx, o); @@ -446,7 +434,6 @@ int run_diff_index(struct rev_info *revs, int cached) const char *tree_name; struct unpack_trees_options opts; struct tree_desc t; - struct oneway_unpack_data unpack_cb; mark_merge_entries(); @@ -456,14 +443,12 @@ int run_diff_index(struct rev_info *revs, int cached) if (!tree) return error("bad tree object %s", tree_name); - unpack_cb.revs = revs; - unpack_cb.symcache[0] = '\0'; memset(&opts, 0, sizeof(opts)); opts.head_idx = 1; opts.index_only = cached; opts.merge = 1; opts.fn = oneway_diff; - opts.unpack_data = &unpack_cb; + opts.unpack_data = revs; opts.src_index = &the_index; opts.dst_index = NULL; @@ -486,7 +471,6 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt) struct cache_entry *last = NULL; struct unpack_trees_options opts; struct tree_desc t; - struct oneway_unpack_data unpack_cb; /* * This is used by git-blame to run diff-cache internally; @@ -515,14 +499,12 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt) if (!tree) die("bad tree object %s", sha1_to_hex(tree_sha1)); - unpack_cb.revs = &revs; - unpack_cb.symcache[0] = '\0'; memset(&opts, 0, sizeof(opts)); opts.head_idx = 1; opts.index_only = 1; opts.merge = 1; opts.fn = oneway_diff; - opts.unpack_data = &unpack_cb; + opts.unpack_data = &revs; opts.src_index = &the_index; opts.dst_index = &the_index; -- 2.26.2