Torsten Bögershausen <tboegi@xxxxxx> writes:
> optimize set_shared_perm() in path.c:
>
> - sometimes the chown() function is called even when not needed.
> (This can be provoced by running t1301, and adding some debug code)
>
> Save a chmod from 400 to 400, or from 600->600 on these files:
> .git/info/refs+
> .git/objects/info/packs+
>
> Save chmod on directories from 2770 to 2770:
> .git/refs
> .git/refs/heads
> .git/refs/tags
>
> - as all callers use mode == 0 when caling set_shared_perm(),
> the function can be simplified.
> - all callers use the macro adjust_shared_perm(path) from cache.h
> Convert adjust_shared_perm() from a macro into a function prototype
The last two points can become a separate "preparation" step. The
result would be easier to read.
Your updated adjust_shared_perm() does not begin with:
if (!shared_repository)
return 0;
as the original, but it always first calls to get_st_mode_bits()
which makes a call to lstat(2).
That smells like a huge regression for !shared_repository case,
unless you have updated the existing callers of adjust_shared_perm()
not to call it when !shared_repository.
> diff --git a/path.c b/path.c
> index 2fdccc2..4bc918a 100644
> --- a/path.c
> +++ b/path.c
> @@ -1,14 +1,5 @@
> /*
> - * I'm tired of doing "vsnprintf()" etc just to open a
> - * file, so here's a "return static buffer with printf"
> - * interface for paths.
> - *
> - * It's obviously not thread-safe. Sue me. But it's quite
> - * useful for doing things like
> - *
> - * f = open(mkpath("%s/%s.git", base, name), O_RDONLY);
> - *
> - * which is what it's designed for.
> + * Different utilitiy functions for path and path names
> */
Removing the stale "I'm tired of" is good; you do not have to move
it anywhere. A single-liner
/* Utilities for paths and pathnames */
should suffice.
Will discard this step (but will keep PATCH 1/2).
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