From: Alviro Iskandar Setiawan <[email protected]>
To: Ammar Faizi <[email protected]>
Cc: David Laight <[email protected]>, Willy Tarreau <[email protected]>,
"Paul E. McKenney" <[email protected]>,
Nugraha <[email protected]>,
Linux Kernel Mailing List <[email protected]>,
"GNU/Weeb Mailing List" <[email protected]>
Subject: Re: [RFC PATCH v2 6/8] tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()`
Date: Tue, 22 Mar 2022 19:36:11 +0700 [thread overview]
Message-ID: <CAOG64qP2qiyOQaTJ56Cg2w=Q=euDbSjqkOVOLKJHMq-xAS2U7Q@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
On Tue, Mar 22, 2022 at 7:18 PM Ammar Faizi wrote:
> Rounding up is not useful here, because we don't have any free list to keep
> track the unused block of memory. I mean, even if it's rounded up, the extra
> space after rounded up cannot be utilized with this design. There is no
> book-keeping that tracks it.
>
> Though, the kernel still allocates the size in multiple page size.
BTW, what David meant probably, don't call mmap() again if heap->len
is greater than new_len. Isn't that simple enough to give it a go?
-- Viro
next prev parent reply other threads:[~2022-03-22 12:36 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 10:21 [RFC PATCH v2 0/8] Add dynamic memory allocator support for nolibc Ammar Faizi
2022-03-22 10:21 ` [RFC PATCH v2 1/8] tools/nolibc: x86-64: Update System V ABI document link Ammar Faizi
2022-03-22 10:21 ` [RFC PATCH v2 2/8] tools/nolibc: Remove .global _start from the entry point code Ammar Faizi
2022-03-22 17:09 ` Nick Desaulniers
2022-03-22 17:25 ` Willy Tarreau
2022-03-22 17:30 ` Nick Desaulniers
2022-03-22 17:58 ` Willy Tarreau
2022-03-22 18:07 ` Nick Desaulniers
2022-03-22 18:24 ` Willy Tarreau
2022-03-22 18:38 ` Nick Desaulniers
2022-03-22 10:21 ` [RFC PATCH v2 3/8] tools/nolibc: i386: Implement syscall with 6 arguments Ammar Faizi
2022-03-22 10:57 ` David Laight
2022-03-22 11:23 ` Willy Tarreau
2022-03-22 11:39 ` David Laight
2022-03-22 12:02 ` Ammar Faizi
2022-03-22 12:07 ` Ammar Faizi
2022-03-22 12:13 ` Willy Tarreau
2022-03-22 13:26 ` Ammar Faizi
2022-03-22 13:34 ` Willy Tarreau
2022-03-22 13:37 ` Ammar Faizi
2022-03-22 13:39 ` David Laight
2022-03-22 13:41 ` Willy Tarreau
2022-03-22 13:45 ` Ammar Faizi
2022-03-22 13:54 ` Ammar Faizi
2022-03-22 13:56 ` Ammar Faizi
2022-03-22 14:02 ` Willy Tarreau
2022-03-22 13:37 ` David Laight
2022-03-22 14:47 ` Alviro Iskandar Setiawan
2022-03-22 15:11 ` David Laight
2022-03-23 6:29 ` Ammar Faizi
2022-03-23 6:32 ` Ammar Faizi
2022-03-23 7:10 ` Willy Tarreau
2022-03-22 10:21 ` [RFC PATCH v2 4/8] tools/nolibc/sys: Implement `mmap()` and `munmap()` Ammar Faizi
2022-03-22 10:21 ` [RFC PATCH v2 5/8] tools/nolibc/types: Implement `offsetof()` and `container_of()` macro Ammar Faizi
2022-03-22 10:21 ` [RFC PATCH v2 6/8] tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()` Ammar Faizi
2022-03-22 11:52 ` David Laight
2022-03-22 12:18 ` Ammar Faizi
2022-03-22 12:36 ` Alviro Iskandar Setiawan [this message]
2022-03-22 12:42 ` Ammar Faizi
2022-03-22 12:21 ` Willy Tarreau
2022-03-22 10:21 ` [RFC PATCH v2 7/8] tools/nolibc/string: Implement `strnlen()` Ammar Faizi
2022-03-22 10:21 ` [RFC PATCH v2 8/8] tools/include/string: Implement `strdup()` and `strndup()` Ammar Faizi
2022-03-22 11:27 ` [RFC PATCH v2 0/8] Add dynamic memory allocator support for nolibc Willy Tarreau
2022-03-22 12:43 ` Ammar Faizi
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