Date: Wed, 27 Oct 2010 21:26:02 +0000 From: Alexander Best <arundel@freebsd.org> To: Dag-Erling Smorgrav <des@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r214431 - head/bin/rm Message-ID: <20101027212601.GA78062@freebsd.org> In-Reply-To: <201010271848.o9RImNSR019344@svn.freebsd.org> References: <201010271848.o9RImNSR019344@svn.freebsd.org>
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On Wed Oct 27 10, Dag-Erling Smorgrav wrote: > Author: des > Date: Wed Oct 27 18:48:23 2010 > New Revision: 214431 > URL: http://svn.freebsd.org/changeset/base/214431 > > Log: > Language cleanup. > > Modified: > head/bin/rm/rm.1 > > Modified: head/bin/rm/rm.1 > ============================================================================== > --- head/bin/rm/rm.1 Wed Oct 27 18:46:56 2010 (r214430) > +++ head/bin/rm/rm.1 Wed Oct 27 18:48:23 2010 (r214431) > @@ -231,6 +231,6 @@ The > .Fl P > option assumes that the underlying file system updates existing blocks > in-place and does not store new data in a new location. > -This is true for UFS but not for ZFS, which is using a Copy-On-Write strategy. > -In addition, only regular files are overwritten, other types of files > -are not. > +This is true for UFS, but not for ZFS or other file systems which use > +copy-on-write semantics. > +In addition, only regular files are overwritten. are in fact COW fs the only exception where the -P flag won't work? before r213582 LFS was mentioned here and that the block size must be fixed. also the comment in rm.c says that -P won't work for any logging file systems. i'm not a fs expert, but i think mentioning that -P won't work for COW fs isn't enough. -- a13x
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