From: Ivan Shapovalov <intelfx100@gmail.com>
To: "Dušan Čolić" <dusanc@gmail.com>
Cc: reiserfs-devel <reiserfs-devel@vger.kernel.org>,
Edward Shishkin <edward.shishkin@gmail.com>
Subject: Re: [RFC] [PATCH 0/7] reiser4: batch discard support (FITRIM ioctl): initial implementation.
Date: Sun, 17 Aug 2014 20:18:37 +0400 [thread overview]
Message-ID: <5846460.pSnBE1QeaT@intelfx-laptop> (raw)
In-Reply-To: <CADW=+3kCURR6UB5Tm8OcJnSYV1cNcYtTmbNNrv_QCO3o1RzwDQ@mail.gmail.com>
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On Sunday 17 August 2014 at 18:14:10, Dušan Čolić wrote:
> [...]
> >
> > Points I'm really uncertain of:
> > - grabbing fixed amount of space (new BA_SOME_SPACE flag, grabs 25% of
> disk space)
>
> Maybe grabbing 25% of remaining empty disk space would be better?
What do you mean by "remaining"? 25% is recalculated on each iteration.
However, the reserved and allocated disk space is reclaimed at the end
of each iteration, so the amount really stays the same.
--
Ivan Shapovalov / intelfx /
>
> > - creation of empty atoms (reiser4_create_atom())
> > - handling of empty atoms in commit_current_atom()
> >
> [...]
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next prev parent reply other threads:[~2014-08-17 16:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-17 15:43 [RFC] [PATCH 0/7] reiser4: batch discard support (FITRIM ioctl): initial implementation Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 1/7] reiser4: block_alloc: add BA_SOME_SPACE flag for grabbing a fixed amount of space Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 2/7] reiser4: block_alloc: add a "forward" parameter to reiser4_blocknr_hint to allocate blocks only in forward direction Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 3/7] reiser4: txnmgr: free allocated but unneeded atom in atom_begin_and_assign_to_txnh() Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 4/7] reiser4: txnmgr: add reiser4_create_atom() which creates an empty atom without capturing any nodes Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 5/7] reiser4: txnmgr: call reiser4_post_write_back_hook() for empty atoms Ivan Shapovalov
2014-08-17 15:59 ` Ivan Shapovalov
2014-08-17 16:28 ` Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 6/7] reiser4: batch discard support: add a dummy FITRIM ioctl handler for directories Ivan Shapovalov
2014-08-17 15:43 ` [RFC] [PATCH 7/7] reiser4: batch discard support: actually implement the FITRIM ioctl handler Ivan Shapovalov
[not found] ` <CADW=+3kCURR6UB5Tm8OcJnSYV1cNcYtTmbNNrv_QCO3o1RzwDQ@mail.gmail.com>
2014-08-17 16:18 ` Ivan Shapovalov [this message]
[not found] ` <CADW=+3=B_3pKNzph7EtfXNLbVxxn4dxsykm_RF+ayce9RsoVUQ@mail.gmail.com>
2014-08-17 16:38 ` [RFC] [PATCH 0/7] reiser4: batch discard support (FITRIM ioctl): initial implementation Ivan Shapovalov
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