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Message-ID: <Pine.LNX.4.61.0705142239290.9570@yvahk01.tjqt.qr> Date: Mon, 14 May 2007 22:39:58 +0200 (MEST) From: Jan Engelhardt <jengelh@...ux01.gwdg.de> To: Bharata B Rao <bharata@...ux.vnet.ibm.com> cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, Jan Blunck <j.blunck@...harburg.de> Subject: Re: [RFC][PATCH 3/14] Add the whiteout file type On May 14 2007 15:09, Bharata B Rao wrote: > >A white-out stops the VFS from further lookups of the white-outs name and >returns -ENOENT. This is the same behaviour as if the filename isn't >found. This can be used in combination with union mounts to virtually >delete (white-out) files by creating a file with this file type. > >Signed-off-by: Jan Blunck <j.blunck@...harburg.de> >Signed-off-by: Bharata B Rao <bharata@...ux.vnet.ibm.com> >--- > include/linux/stat.h | 2 ++ > 1 files changed, 2 insertions(+) > >--- a/include/linux/stat.h >+++ b/include/linux/stat.h >@@ -10,6 +10,7 @@ > #if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) > > #define S_IFMT 00170000 >+#define S_IFWHT 0160000 /* whiteout */ > #define S_IFSOCK 0140000 > #define S_IFLNK 0120000 > #define S_IFREG 0100000 I wonder why 110000, 130000 or 150000 could not also be used? Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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