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Re: [PATCH 17/38] union-mount: Union mounts documentation

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From: Alex Riesen
Subject: Re: [PATCH 17/38] union-mount: Union mounts documentation
Date: Thursday, June 17, 2010 - 1:01 am

On Tue, Jun 15, 2010 at 20:39, Valerie Aurora <vaurora@redhat.com> wrote:

This may be a dumb question (I must admit I did only very little research),
but how does one cleanup the topmost layer of whiteouts and fallthroughs,
so that the entries of lower layer(s) can be made visible again?
--
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[PATCH 00/38] Union mounts - union stack as linked list, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 01/38] VFS: Comment follow_mount() and friends, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 02/38] VFS: Make lookup_hash() return a struct path, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 03/38] VFS: Add read-only users count to superblock, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 04/38] autofs4: Save autofs trigger's vfsmount in s ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 05/38] whiteout/NFSD: Don't return information abou ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 06/38] whiteout: Add vfs_whiteout() and whiteout in ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 07/38] whiteout: Set S_OPAQUE inode flag when creat ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 08/38] whiteout: Allow removal of a directory with ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 09/38] whiteout: tmpfs whiteout support, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 10/38] whiteout: Split of ext2_append_link() from e ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 11/38] whiteout: ext2 whiteout support, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 12/38] whiteout: jffs2 whiteout support, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 14/38] fallthru: ext2 fallthru support, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 16/38] fallthru: tmpfs fallthru support, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 17/38] union-mount: Union mounts documentation, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 18/38] union-mount: Introduce MNT_UNION and MS_UNIO ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 19/38] union-mount: Introduce union_dir structure a ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 20/38] union-mount: Free union dirs on removal from ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 21/38] union-mount: Support for mounting union moun ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 22/38] union-mount: Implement union lookup, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 23/38] union-mount: Call do_whiteout() on unlink an ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 25/38] VFS: Split inode_permission() and create pat ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 27/38] union-mount: In-kernel file copyup routines, Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 28/38] union-mount: Implement union-aware access()/ ..., Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 29/38] union-mount: Implement union-aware link(), Valerie Aurora, (Tue Jun 15, 11:39 am)
[PATCH 30/38] union-mount: Implement union-aware rename(), Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 31/38] union-mount: Implement union-aware writable ..., Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 32/38] union-mount: Implement union-aware chown(), Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 33/38] union-mount: Implement union-aware truncate(), Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 34/38] union-mount: Implement union-aware chmod()/f ..., Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 35/38] union-mount: Implement union-aware lchown(), Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 36/38] union-mount: Implement union-aware utimensat(), Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 37/38] union-mount: Implement union-aware setxattr(), Valerie Aurora, (Tue Jun 15, 11:40 am)
[PATCH 38/38] union-mount: Implement union-aware lsetxattr(), Valerie Aurora, (Tue Jun 15, 11:40 am)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Tue Jun 15, 9:04 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Valerie Aurora, (Wed Jun 16, 4:14 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Wed Jun 16, 7:04 pm)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Alex Riesen, (Thu Jun 17, 1:01 am)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Valerie Aurora, (Thu Jun 17, 11:39 am)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Alex Riesen, (Thu Jun 17, 1:32 pm)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Valerie Aurora, (Fri Jun 18, 2:06 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Sun Jun 20, 8:39 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Miklos Szeredi, (Mon Jun 21, 6:06 am)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Miklos Szeredi, (Mon Jun 21, 6:14 am)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Mon Jun 21, 6:24 am)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Valerie Aurora, (Mon Jun 21, 4:17 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Mon Jun 21, 9:46 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., J. R. Okajima, (Mon Jun 21, 10:49 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Tue Jun 22, 6:11 am)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Tue Jun 22, 6:23 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., J. R. Okajima, (Tue Jun 22, 7:07 pm)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Tue Jun 22, 7:37 pm)
Re: [PATCH 17/38] union-mount: Union mounts documentation, Alex Riesen, (Wed Jun 23, 1:43 am)
Re: [autofs] [PATCH 04/38] autofs4: Save autofs trigger's ..., Ian Kent, (Wed Jun 23, 10:16 pm)
Re: [PATCH 06/38] whiteout: Add vfs_whiteout() and whiteou ..., Ian Kent, (Mon Jul 12, 8:52 pm)
Re: [PATCH 07/38] whiteout: Set S_OPAQUE inode flag when c ..., Ian Kent, (Mon Jul 12, 9:05 pm)
Re: [PATCH 11/38] whiteout: ext2 whiteout support, Ian Kent, (Mon Jul 12, 9:24 pm)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Ian Kent, (Mon Jul 12, 9:30 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Ian Kent, (Mon Jul 12, 9:47 pm)
Re: [PATCH 22/38] union-mount: Implement union lookup, Ian Kent, (Mon Jul 12, 9:49 pm)
Re: [PATCH 24/38] union-mount: Copy up directory entries o ..., Ian Kent, (Mon Jul 12, 9:51 pm)
Re: [PATCH 27/38] union-mount: In-kernel file copyup routines, Ian Kent, (Mon Jul 12, 9:56 pm)
Re: [PATCH 06/38] whiteout: Add vfs_whiteout() and whiteou ..., Valerie Aurora, (Fri Jul 16, 12:50 pm)
Re: [PATCH 07/38] whiteout: Set S_OPAQUE inode flag when c ..., Valerie Aurora, (Fri Jul 16, 1:12 pm)
Re: [PATCH 19/38] union-mount: Introduce union_dir structu ..., Valerie Aurora, (Fri Jul 16, 1:51 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Valerie Aurora, (Fri Jul 16, 2:02 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Valerie Aurora, (Fri Jul 16, 2:05 pm)
Re: [PATCH 07/38] whiteout: Set S_OPAQUE inode flag when c ..., Ian Kent, (Fri Jul 16, 9:14 pm)
Re: [PATCH 22/38] union-mount: Implement union lookup, Valerie Aurora, (Mon Jul 19, 2:58 pm)
Re: [PATCH 27/38] union-mount: In-kernel file copyup routines, Valerie Aurora, (Mon Jul 19, 3:41 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Ian Kent, (Mon Jul 19, 8:12 pm)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Miklos Szeredi, (Wed Aug 4, 7:44 am)
Re: [PATCH 19/38] union-mount: Introduce union_dir structu ..., Miklos Szeredi, (Wed Aug 4, 7:51 am)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Miklos Szeredi, (Wed Aug 4, 7:55 am)
Re: [PATCH 27/38] union-mount: In-kernel file copyup routines, Miklos Szeredi, (Wed Aug 4, 8:26 am)
Re: [PATCH 19/38] union-mount: Introduce union_dir structu ..., Valerie Aurora, (Wed Aug 4, 12:47 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Valerie Aurora, (Wed Aug 4, 2:59 pm)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Valerie Aurora, (Wed Aug 4, 3:48 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Valerie Aurora, (Wed Aug 4, 9:26 pm)
Re: [PATCH 19/38] union-mount: Introduce union_dir structu ..., Miklos Szeredi, (Thu Aug 5, 3:28 am)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Miklos Szeredi, (Thu Aug 5, 3:34 am)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Miklos Szeredi, (Thu Aug 5, 3:36 am)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Miklos Szeredi, (Thu Aug 5, 4:13 am)
Re: [PATCH 27/38] union-mount: In-kernel file copyup routines, Valerie Aurora, (Thu Aug 5, 12:54 pm)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Valerie Aurora, (Thu Aug 5, 4:30 pm)
Re: [PATCH 21/38] union-mount: Support for mounting union ..., Valerie Aurora, (Fri Aug 6, 9:33 am)
Re: [PATCH 19/38] union-mount: Introduce union_dir structu ..., Valerie Aurora, (Fri Aug 6, 10:09 am)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Valerie Aurora, (Fri Aug 6, 10:12 am)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Valerie Aurora, (Fri Aug 6, 10:16 am)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Miklos Szeredi, (Fri Aug 6, 10:44 am)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Valerie Aurora, (Tue Aug 17, 3:27 pm)
Re: [PATCH 14/38] fallthru: ext2 fallthru support, Miklos Szeredi, (Wed Aug 18, 1:26 am)