mirror/git
1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-11-18 23:13:58 +01:00
Code

Avoid doing extra 'lstat()'s for d_type if we have an up-to-date cache entry

Browse Source 
On filesystems without d_type, we can look at the cache entry first.
Doing an lstat() can be expensive.

Reported by Dmitry Potapov for Cygwin.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Linus Torvalds 2009-07-08 19:31:49 -07:00 committed by Junio C Hamano
parent dba2e2037f
commit caa6b7825a
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
dir.c
View File

@ -16,7 +16,7 @@ struct path_simplify {
static int read_directory_recursive(struct dir_struct *dir, const char *path, int len,
int check_only, const struct path_simplify *simplify);
static int get_dtype(struct dirent *de, const char *path);
static int get_dtype(struct dirent *de, const char *path, int len);
static int common_prefix(const char **pathspec)
{
@ -326,7 +326,7 @@ static int excluded_1(const char *pathname,
if (x->flags & EXC_FLAG_MUSTBEDIR) {
if (*dtype == DT_UNKNOWN)
*dtype = get_dtype(NULL, pathname);
*dtype = get_dtype(NULL, pathname, pathlen);
if (*dtype != DT_DIR)
continue;
}
@ -566,14 +566,18 @@ static int in_pathspec(const char *path, int len, const struct path_simplify *si
return 0;
}
static int get_dtype(struct dirent *de, const char *path)
static int get_dtype(struct dirent *de, const char *path, int len)
{
int dtype = de ? DTYPE(de) : DT_UNKNOWN;
struct cache_entry *ce;
struct stat st;
if (dtype != DT_UNKNOWN)
return dtype;
if (lstat(path, &st))
ce = cache_name_exists(path, len, 0);
if (ce && ce_uptodate(ce))
st.st_mode = ce->ce_mode;
else if (lstat(path, &st))
return dtype;
if (S_ISREG(st.st_mode))
return DT_REG;
@ -633,7 +637,7 @@ static int read_directory_recursive(struct dir_struct *dir, const char *base, in
continue;
if (dtype == DT_UNKNOWN)
dtype = get_dtype(de, path);
dtype = get_dtype(de, path, len);
/*
* Do we want to see just the ignored files?