From: Brian Foster <[email protected]>
To: Zorro Lang <[email protected]>
Cc: [email protected], [email protected]
Subject: Re: [PATCH v4 3/5] fsstress: fix memory leak in do_aio_rw
Date: Tue, 8 Sep 2020 14:35:22 -0400 [thread overview]
Message-ID: <20200908183522.GC737175@bfoster> (raw)
In-Reply-To: <[email protected]>
On Mon, Sep 07, 2020 at 01:55:11AM +0800, Zorro Lang wrote:
> If io_submit or io_getevents fails, the do_aio_rw() won't free the
> "buf" and cause memory leak.
>
> Signed-off-by: Zorro Lang <[email protected]>
> ---
> ltp/fsstress.c | 39 +++++++++++++++++++--------------------
> 1 file changed, 19 insertions(+), 20 deletions(-)
>
> diff --git a/ltp/fsstress.c b/ltp/fsstress.c
> index b4a51376..c0e587a3 100644
> --- a/ltp/fsstress.c
> +++ b/ltp/fsstress.c
...
> @@ -2166,27 +2166,26 @@ do_aio_rw(int opno, long r, int flags)
> if (v)
> printf("%d/%d: %s - io_submit failed %d\n",
> procid, opno, iswrite ? "awrite" : "aread", e);
> - free_pathname(&f);
> - close(fd);
> - return;
> + goto aio_out;
> }
> if ((e = io_getevents(io_ctx, 1, 1, &event, NULL)) != 1) {
> if (v)
> printf("%d/%d: %s - io_getevents failed %d\n",
> procid, opno, iswrite ? "awrite" : "aread", e);
> - free_pathname(&f);
> - close(fd);
> - return;
> + goto aio_out;
> }
>
> e = event.res != len ? event.res2 : 0;
> - free(buf);
> if (v)
> printf("%d/%d: %s %s%s [%lld,%d] %d\n",
> procid, opno, iswrite ? "awrite" : "aread",
> f.path, st, (long long)off, (int)len, e);
> + aio_out:
> + if (buf)
> + free(buf);
> + if (fd > 0)
> + close(fd);
Same nit here as patch 1. Otherwise LGTM:
Reviewed-by: Brian Foster <[email protected]>
> free_pathname(&f);
> - close(fd);
> }
> #endif
>
> --
> 2.20.1
>
next prev parent reply other threads:[~2020-09-08 18:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-06 17:55 [PATCH v4 0/5] fsstress,fsx: add io_uring test and do some fix Zorro Lang
2020-09-06 17:55 ` [PATCH v4 1/5] fsstress: add IO_URING read and write operations Zorro Lang
2020-09-08 18:34 ` Brian Foster
2020-09-06 17:55 ` [PATCH v4 2/5] fsstress: reduce the number of events when io_setup Zorro Lang
2020-09-08 18:34 ` Brian Foster
2020-09-06 17:55 ` [PATCH v4 3/5] fsstress: fix memory leak in do_aio_rw Zorro Lang
2020-09-08 18:35 ` Brian Foster [this message]
2020-09-06 17:55 ` [PATCH v4 4/5] fsx: introduce fsx_rw to combine aio_rw with general read and write Zorro Lang
2020-09-08 18:35 ` Brian Foster
2020-09-06 17:55 ` [PATCH v4 5/5] fsx: add IO_URING test Zorro Lang
2020-09-08 18:36 ` Brian Foster
2020-09-09 3:58 ` Zorro Lang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200908183522.GC737175@bfoster \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox