X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Ffeature-removal-schedule.txt;h=6b0f963f5379eb252045f553617cd11c51fc80ac;hb=d6ec084200c37683278c821338f74ddf21ab80f5;hp=63df2262d41a2625da0816a0383aaaece00963bc;hpb=e3d18658d4f28e4783e1bb1c41e9134c9e5db0a9;p=linux-2.6-omap-h63xx.git diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 63df2262d41..6b0f963f537 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -82,6 +82,52 @@ Who: Dominik Brodowski --------------------------- +What: sys_sysctl +When: September 2010 +Option: CONFIG_SYSCTL_SYSCALL +Why: The same information is available in a more convenient from + /proc/sys, and none of the sysctl variables appear to be + important performance wise. + + Binary sysctls are a long standing source of subtle kernel + bugs and security issues. + + When I looked several months ago all I could find after + searching several distributions were 5 user space programs and + glibc (which falls back to /proc/sys) using this syscall. + + The man page for sysctl(2) documents it as unusable for user + space programs. + + sysctl(2) is not generally ABI compatible to a 32bit user + space application on a 64bit and a 32bit kernel. + + For the last several months the policy has been no new binary + sysctls and no one has put forward an argument to use them. + + Binary sysctls issues seem to keep happening appearing so + properly deprecating them (with a warning to user space) and a + 2 year grace warning period will mean eventually we can kill + them and end the pain. + + In the mean time individual binary sysctls can be dealt with + in a piecewise fashion. + +Who: Eric Biederman + +--------------------------- + +What: a.out interpreter support for ELF executables +When: 2.6.25 +Files: fs/binfmt_elf.c +Why: Using a.out interpreters for ELF executables was a feature for + transition from a.out to ELF. But now it is unlikely to be still + needed anymore and removing it would simplify the hairy ELF + loader code. +Who: Andi Kleen + +--------------------------- + What: remove EXPORT_SYMBOL(kernel_thread) When: August 2006 Files: arch/*/kernel/*_ksyms.c @@ -173,13 +219,6 @@ Who: Jean Delvare , --------------------------- -What: drivers depending on OBSOLETE_OSS -When: options in 2.6.22, code in 2.6.24 -Why: OSS drivers with ALSA replacements -Who: Adrian Bunk - ---------------------------- - What: ACPI procfs interface When: July 2008 Why: ACPI sysfs conversion should be finished by January 2008. @@ -205,20 +244,6 @@ Who: Len Brown --------------------------- -What: Compaq touchscreen device emulation -When: Oct 2007 -Files: drivers/input/tsdev.c -Why: The code says it was obsolete when it was written in 2001. - tslib is a userspace library which does anything tsdev can do and - much more besides in userspace where this code belongs. There is no - longer any need for tsdev and applications should have converted to - use tslib by now. - The name "tsdev" is also extremely confusing and lots of people have - it loaded when they don't need/use it. -Who: Richard Purdie - ---------------------------- - What: i2c-ixp2000, i2c-ixp4xx and scx200_i2c drivers When: September 2007 Why: Obsolete. The new i2c-gpio driver replaces all hardware-specific