From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Jeff Layton <jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org,
hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
cluster-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 09/10] locks: move freeing of leases outside of i_lock
Date: Sun, 24 Aug 2014 09:08:04 -0700 [thread overview]
Message-ID: <20140824160804.GH15908@infradead.org> (raw)
In-Reply-To: <1408804878-1331-10-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
On Sat, Aug 23, 2014 at 10:41:17AM -0400, Jeff Layton wrote:
> There was only one place where we still could free a file_lock while
> holding the i_lock -- lease_modify. Add a new list_head argument to the
> lm_change operation, pass in a private list when calling it, and fix
> those callers to dispose of the list once the lock has been dropped.
Why do we care about locks held when simply freeing a piece of memory?
next prev parent reply other threads:[~2014-08-24 16:08 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-23 14:41 [PATCH 00/10] locks/nfsd: internal lease API overhaul Jeff Layton
2014-08-23 14:41 ` [PATCH 04/10] locks: clean up vfs_setlease kerneldoc comments Jeff Layton
2014-08-24 15:51 ` Christoph Hellwig
[not found] ` <20140824155117.GC15908-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-25 20:11 ` J. Bruce Fields
2014-08-23 14:41 ` [PATCH 07/10] locks: define a lm_setup handler for leases Jeff Layton
[not found] ` <1408804878-1331-8-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 15:58 ` Christoph Hellwig
2014-08-25 1:19 ` Jeff Layton
2014-08-26 13:58 ` Christoph Hellwig
2014-08-23 14:41 ` [PATCH 08/10] locks: move i_lock acquisition into generic_*_lease handlers Jeff Layton
[not found] ` <1408804878-1331-9-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 16:06 ` Christoph Hellwig
[not found] ` <20140824160634.GG15908-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-24 16:11 ` Christoph Hellwig
[not found] ` <20140824161134.GJ15908-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-31 14:51 ` Jeff Layton
2014-08-25 1:36 ` Jeff Layton
[not found] ` <1408804878-1331-1-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-23 14:41 ` [PATCH 01/10] locks: close potential race in lease_get_mtime Jeff Layton
[not found] ` <1408804878-1331-2-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 15:48 ` Christoph Hellwig
2014-08-25 20:01 ` J. Bruce Fields
2014-08-23 14:41 ` [PATCH 02/10] nfsd: fix potential lease memory leak in nfs4_setlease Jeff Layton
[not found] ` <1408804878-1331-3-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 15:48 ` Christoph Hellwig
2014-08-23 14:41 ` [PATCH 03/10] locks: generic_delete_lease doesn't need a file_lock at all Jeff Layton
[not found] ` <1408804878-1331-4-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 1:27 ` Christoph Hellwig
[not found] ` <20140824012757.GA21609-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-24 10:09 ` Jeff Layton
2014-08-23 14:41 ` [PATCH 05/10] nfsd: don't keep a pointer to the lease in nfs4_file Jeff Layton
[not found] ` <1408804878-1331-6-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 15:51 ` Christoph Hellwig
2014-08-23 14:41 ` [PATCH 06/10] locks: plumb an "aux" pointer into the setlease routines Jeff Layton
[not found] ` <1408804878-1331-7-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 1:33 ` Christoph Hellwig
[not found] ` <20140824013305.GB21609-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-24 10:08 ` Jeff Layton
[not found] ` <20140824060801.5402880c-08S845evdOaAjSkqwZiSMmfYqLom42DlXqFh9Ls21Oc@public.gmane.org>
2014-08-24 15:54 ` Christoph Hellwig
2014-08-25 20:28 ` J. Bruce Fields
[not found] ` <20140825202852.GD21957-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2014-08-26 10:53 ` Jeff Layton
2014-08-23 14:41 ` [PATCH 09/10] locks: move freeing of leases outside of i_lock Jeff Layton
[not found] ` <1408804878-1331-10-git-send-email-jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
2014-08-24 16:08 ` Christoph Hellwig [this message]
[not found] ` <20140824160804.GH15908-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-25 1:35 ` Jeff Layton
2014-08-23 14:41 ` [PATCH 10/10] locks: update Documentation/filesystems with lease API changes Jeff Layton
2014-08-24 16:10 ` [PATCH 00/10] locks/nfsd: internal lease API overhaul Christoph Hellwig
[not found] ` <20140824161046.GI15908-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-08-25 1:43 ` Jeff Layton
[not found] ` <20140824214301.61019123-08S845evdOaAjSkqwZiSMmfYqLom42DlXqFh9Ls21Oc@public.gmane.org>
2014-08-26 13:59 ` Christoph Hellwig
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