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The following is a list of files and features that are going to be
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removed in the kernel source tree. Every entry should contain what
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exactly is going away, why it is happening, and who is going to be doing
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the work. When the feature is removed from the kernel, it should also
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be removed from this file.
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---------------------------
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What: devfs
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When: July 2005
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Files: fs/devfs/*, include/linux/devfs_fs*.h and assorted devfs
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function calls throughout the kernel tree
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Why: It has been unmaintained for a number of years, has unfixable
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races, contains a naming policy within the kernel that is
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against the LSB, and can be replaced by using udev.
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Who: Greg Kroah-Hartman <greg@kroah.com>
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What: ACPI S4bios support
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When: May 2005
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Why: Noone uses it, and it probably does not work, anyway. swsusp is
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faster, more reliable, and people are actually using it.
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Who: Pavel Machek <pavel@suse.cz>
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What: PCI Name Database (CONFIG_PCI_NAMES)
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When: July 2005
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Why: It bloats the kernel unnecessarily, and is handled by userspace better
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(pciutils supports it.) Will eliminate the need to try to keep the
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pci.ids file in sync with the sf.net database all of the time.
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Who: Greg Kroah-Hartman <gregkh@suse.de>
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What: io_remap_page_range() (macro or function)
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When: September 2005
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Why: Replaced by io_remap_pfn_range() which allows more memory space
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addressabilty (by using a pfn) and supports sparc & sparc64
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iospace as part of the pfn.
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Who: Randy Dunlap <rddunlap@osdl.org>
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What: register_ioctl32_conversion() / unregister_ioctl32_conversion()
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When: April 2005
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Why: Replaced by ->compat_ioctl in file_operations and other method
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vecors.
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Who: Andi Kleen <ak@muc.de>, Christoph Hellwig <hch@lst.de>
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What: RCU API moves to EXPORT_SYMBOL_GPL
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When: April 2006
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Files: include/linux/rcupdate.h, kernel/rcupdate.c
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Why: Outside of Linux, the only implementations of anything even
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vaguely resembling RCU that I am aware of are in DYNIX/ptx,
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VM/XA, Tornado, and K42. I do not expect anyone to port binary
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drivers or kernel modules from any of these, since the first two
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are owned by IBM and the last two are open-source research OSes.
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So these will move to GPL after a grace period to allow
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people, who might be using implementations that I am not aware
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of, to adjust to this upcoming change.
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Who: Paul E. McKenney <paulmck@us.ibm.com>
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