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From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: David Turner <dturner@twopensource.com>
Cc: git@vger.kernel.org, pclouds@gmail.com
Subject: Re: [PATCH v5 02/15] read-cache: allow to keep mmap'd memory after reading
Date: Wed, 20 Apr 2016 11:01:23 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.20.1604201059530.2826@virtualbox> (raw)
In-Reply-To: <1461108489-29376-3-git-send-email-dturner@twopensource.com>

Hi Dave,

On Tue, 19 Apr 2016, David Turner wrote:

>  unmap:
> +	istate->mmap = NULL;
>  	munmap(mmap, mmap_size);
>  	die("index file corrupt");
>  }
> [...]
> @@ -1698,6 +1705,10 @@ int discard_index(struct index_state *istate)
>  	free(istate->cache);
>  	istate->cache = NULL;
>  	istate->cache_alloc = 0;
> +	if (istate->keep_mmap && istate->mmap) {
> +		munmap(istate->mmap, istate->mmap_size);
> +		istate->mmap = NULL;
> +	}
>  	discard_split_index(istate);

Just curious: any reason why the first hunk munmap()s after resetting the
field to NULL and the second hunk does it in the opposite order?

Ciao,
Dscho

  reply	other threads:[~2016-04-20  9:01 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-19 23:27 [PATCH v5 00/15] index-helper/watchman David Turner
2016-04-19 23:27 ` [PATCH v5 01/15] read-cache.c: fix constness of verify_hdr() David Turner
2016-04-19 23:27 ` [PATCH v5 02/15] read-cache: allow to keep mmap'd memory after reading David Turner
2016-04-20  9:01   ` Johannes Schindelin [this message]
2016-04-20 19:41     ` David Turner
2016-04-20  9:26   ` Duy Nguyen
2016-04-20 19:43     ` David Turner
2016-04-19 23:27 ` [PATCH v5 03/15] index-helper: new daemon for caching index and related stuff David Turner
2016-04-20 12:17   ` Johannes Schindelin
2016-04-20 12:31     ` Duy Nguyen
2016-04-20 19:38     ` David Turner
2016-04-19 23:27 ` [PATCH v5 04/15] index-helper: add --strict David Turner
2016-04-19 23:27 ` [PATCH v5 05/15] daemonize(): set a flag before exiting the main process David Turner
2016-04-19 23:28 ` [PATCH v5 06/15] index-helper: add --detach David Turner
2016-04-19 23:50   ` Duy Nguyen
2016-04-20  1:04     ` David Turner
2016-04-20  9:33       ` Duy Nguyen
2016-04-25 20:53     ` David Turner
2016-04-19 23:28 ` [PATCH v5 07/15] read-cache: add watchman 'WAMA' extension David Turner
2016-04-19 23:28 ` [PATCH v5 08/15] Add watchman support to reduce index refresh cost David Turner
2016-04-19 23:28 ` [PATCH v5 09/15] index-helper: use watchman to avoid refreshing index with lstat() David Turner
2016-04-20  0:15   ` Duy Nguyen
2016-04-20  1:01     ` David Turner
2016-04-20  9:36       ` Duy Nguyen
2016-04-19 23:28 ` [PATCH v5 10/15] update-index: enable/disable watchman support David Turner
2016-04-19 23:45   ` Duy Nguyen
2016-04-20 19:50     ` David Turner
2016-04-19 23:28 ` [PATCH v5 11/15] unpack-trees: preserve index extensions David Turner
2016-04-19 23:28 ` [PATCH v5 12/15] index-helper: kill mode David Turner
2016-04-19 23:28 ` [PATCH v5 13/15] index-helper: don't run if already running David Turner
2016-04-19 23:28 ` [PATCH v5 14/15] index-helper: autorun mode David Turner
2016-04-19 23:28 ` [PATCH v5 15/15] index-helper: optionally automatically run David Turner
2016-04-20  9:59   ` [PATCH 16/15] Add tracing to measure where most of the time is spent Nguyễn Thái Ngọc Duy
2016-04-20 12:28     ` Johannes Schindelin
2016-04-20 12:36       ` Duy Nguyen

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