Date: Thu, 28 Mar 2002 13:30:08 -0800 From: Kirk McKusick <mckusick@beastie.mckusick.com> To: Ollivier Robert <roberto@eurocontrol.fr> Cc: arch@FreeBSD.ORG Subject: Re: [PATCH] MFC the full filesystem softupdates fix ? Message-ID: <200203282130.g2SLU8D99368@beastie.mckusick.com> In-Reply-To: Your message of "Thu, 28 Mar 2002 12:10:07 %2B0100." <20020328111007.GC48070@caerdonn.eurocontrol.fr>
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Date: Thu, 28 Mar 2002 12:10:07 +0100
From: Ollivier Robert <roberto@eurocontrol.fr>
To: Kirk McKusick <mckusick@beastie.mckusick.com>
Cc: arch@FreeBSD.ORG
Subject: Re: [PATCH] MFC the full filesystem softupdates fix ?
In-Reply-To: <200203272134.g2RLYTD97258@beastie.mckusick.com>
According to Kirk McKusick:
> If it was easy as your patch, there would be no problem in
> putting it in. The problem is that -current does not have
> the code to maintain the fs_pendingblocks variable. At a
> minimum you would have to add that code as well. It is a
> good deal more extensive, though at this point well enough
I've now seen that...
> tested that I am less fearful of adding it.
If we take into consideration the fact that 5.0-R won't be
there till October/November, do you think it would be
possible to put that fix and maybe snapshots into 4-STABLE?
The is no chance that snapshots would move into -current. They
touch thousands of lines of code.
If you want to pull over the pending block changes, I enclose
the relevent delta below.
Kirk McKusick
=-=-=-=-=-=-=
From: Kirk McKusick <mckusick@FreeBSD.org>
Date: Tue, 8 May 2001 00:42:20 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/ufs/ffs fs.h softdep.h ffs_softdep.c
ffs_softdep_stub.c ffs_inode.c ffs_vfsops.c src/sys/ufs/ufs
ufs_extern.h inode.h ufs_inode.c
X-FreeBSD-CVS-Branch: HEAD
Sender: owner-cvs-committers@FreeBSD.org
mckusick 2001/05/08 00:42:20 PDT
Modified files:
sys/ufs/ffs fs.h softdep.h ffs_softdep.c
ffs_softdep_stub.c ffs_inode.c
ffs_vfsops.c
sys/ufs/ufs ufs_extern.h inode.h ufs_inode.c
Log:
When running with soft updates, track the number of blocks and files
that are committed to being freed and reflect these blocks in the
counts returned by statfs (and thus also by the `df' command). This
change allows programs such as those that do news expiration to
know when to stop if they are trying to create a certain percentage
of free space. Note that this change does not solve the much harder
problem of making this to-be-freed space available to applications
that want it (thus on a nearly full filesystem, you may still
encounter out-of-space conditions even though the free space will
show up eventually). Hopefully this harder problem will be the
subject of a future enhancement.
Revision Changes Path
1.22 +4 -2 src/sys/ufs/ffs/fs.h
1.12 +6 -3 src/sys/ufs/ffs/softdep.h
1.94 +59 -2 src/sys/ufs/ffs/ffs_softdep.c
1.16 +10 -1 src/sys/ufs/ffs/ffs_softdep_stub.c
1.71 +3 -1 src/sys/ufs/ffs/ffs_inode.c
1.153 +37 -4 src/sys/ufs/ffs/ffs_vfsops.c
1.34 +2 -1 src/sys/ufs/ufs/ufs_extern.h
1.34 +4 -5 src/sys/ufs/ufs/inode.h
1.36 +3 -1 src/sys/ufs/ufs/ufs_inode.c
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