The ~200 Line Linux Kernel Patch That Does Wonders

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02-08-2011, 05:36 PM
kernelOfTruth

those who are using the patchset with the CFS autogroup included & other goodies

v15 is out ! :D

2.6.37_plus kernel with coordinate flush, zcache or TOI

Update5:

Everyone's advised to update to v15

v15 includes all changes since v14

Quote:

changes (for v14 -> v15):

20 2.6.38_patches/15 x86 platform ->
7 [tip:x86_urgent] x86-32: Make sure the stack is set up before we use it

"25 kztmem" --> rename & bump from V1 to V2 to "25 zcache"
1 zcache-linux-2.6.37-110205.patch

(IMPORTANT NOTE: zcache MUST be specified as a kernel boot parameter or
nothing happens!) And if you love to see tons of detailed statstics
changing dynamically try running the following bash script in a big window
with "watch -d":
http://oss.oracle.com/projects/tmem/...e/zcache-stats

the "new" zcache by Dan Magenheimer & Nitin Gupta

27 even more fixes -> 9 uvesafb, vesafb ->
1 [PATCH 1_3] uvesafb,vesafb: create WC or WB PAT entries
2 [PATCH 2_3] Add ioremap_cache and ioremap_wc to all architectures
3 [PATCH 3_3] uvesafb: remove-ifdef-CONFIG_X86-around-ioremap
02-15-2011, 03:10 PM
kernelOfTruth

Update8:

Everyone's advised to update to v16 !

(as always - this is a cumulative update of all patches from the beginning)

Quote:

changes (for v15 -> v16):

"25 kztmem" --> "25 zcache"
2 [PATCH] staging: zcache: fix memory leak
3 [PATCH] zcache: Fix build error when sysfs is not defined

27 even more changes ->
13 fs: remove 8 bytes of padding from block_device on 64bit builds
14 (V2) Fix prlimit64 for suid_sgid processes

20 2.6.38_patches -> 7 CFS -> 11 v16_sd_idle and first_idle_cpu
1 sched-Resolve-sd_idle-and-first_idle_cpu-Catch-22---v1
2 [PATCH] sched: Wholesale removal of sd_idle logic

20 2.6.38_patches -> 13_timer ->
5 (feb6) [GIT\ PULL\]\ timer\ fixes.txt

20 2.6.38_patches -> 15 x86\ platform ->
8 [PATCH\]\ x86\:\ Fix\ io_bitmap_ptr\ memory\ leak\ on\ copy_process\(\)

"31 btrfs"
-> included latest btrfs changes from 2.6.37 to 2.6.38-rc4 (as of February 15th) (commit: c26a920373a983b52223eed5a13b97404d8b4158 (as of February 15th) in http://git.eu.kernel.org/?p=linux/ke....git;a=summary)
1 btrfs-2.6.38-rc4_feb-15th.patch
2 [PATCH] fix (latent?) memory corruption in btrfs_encode_fh()

you can try to use btrfs with zcache but most likely a (yet to be fixed) BUG will be triggered: http://forums.gentoo.org/viewtopic-p...9.html#6571799

upstream has been notified - no solution or patch to fix it has been posted yet

- more efficiency in CFS (cpu scheduler): removed cruft from HT scheduler
- more memory efficiency: fixed memory leaks in zcache, filesystem, and "fs: remove 8 bytes of padding from block_device on 64bit builds"
- latest btrfs from February 15th

kudos to all devs making this possible !
02-15-2011, 04:07 PM
kernelOfTruth

(re-uploaded & added missing patches to changelog and patch(set))

Update8:

Everyone's advised to update to v16 !

(as always - this is a cumulative update of all patches from the beginning)

Quote:

changes (for v15 -> v16):

"25 kztmem" --> "25 zcache"
2 [PATCH] staging: zcache: fix memory leak
3 [PATCH] zcache: Fix build error when sysfs is not defined

27 even more changes ->
13 fs: remove 8 bytes of padding from block_device on 64bit builds
14 (V2) Fix prlimit64 for suid_sgid processes

23 post-2.6.37-fixes -> 4 ext4 -> 12 new_v16
1 [patch] ext4: off by one check in ext4_groupinfo_create_slab()
3 [PATCH] jbd2: call __jbd2_log_start_commit with j_state_lock write locked
4 [PATCH] ext4: allow inode_readahead_blks=0 (linux-2.6.37)

20 2.6.38_patches -> 7 CFS -> 11 v16_sd_idle and first_idle_cpu
1 sched-Resolve-sd_idle-and-first_idle_cpu-Catch-22---v1
2 [PATCH] sched: Wholesale removal of sd_idle logic

20 2.6.38_patches -> 13_timer ->
5 (feb6) [GIT\ PULL\]\ timer\ fixes.txt

20 2.6.38_patches -> 15 x86\ platform ->
8 [PATCH\]\ x86\:\ Fix\ io_bitmap_ptr\ memory\ leak\ on\ copy_process\(\)

32 linux-phc_phc-intel
phc-intel-0.3.2.12.1-2.6.37.patch

"31 btrfs"
-> included latest btrfs changes from 2.6.37 to 2.6.38-rc4 (as of February 15th) (commit: c26a920373a983b52223eed5a13b97404d8b4158 (as of February 15th) in http://git.eu.kernel.org/?p=linux/ke....git;a=summary)
1 btrfs-2.6.38-rc4_feb-15th.patch
2 [PATCH] fix (latent?) memory corruption in btrfs_encode_fh()

you can try to use btrfs with zcache but most likely a (yet to be fixed) BUG will be triggered: http://forums.gentoo.org/viewtopic-p...9.html#6571799

upstream has been notified - no solution or patch to fix it has been posted yet

- more efficiency in CFS (cpu scheduler): removed cruft from HT scheduler
- more memory efficiency: fixed memory leaks in zcache, filesystem, and "fs: remove 8 bytes of padding from block_device on 64bit builds"
- latest btrfs from February 15th
- fixes for ext4 & ability to disable inode_readahead_blks (inode_readahead_blks=0)
- linux-phc (over- and underclocking)

kudos to all devs making this possible !
02-17-2011, 07:35 PM
kernelOfTruth

Quote:

Originally Posted by kernelOfTruth

(re-uploaded & added missing patches to changelog and patch(set))

Update8:

Everyone's advised to update to v16 !

(as always - this is a cumulative update of all patches from the beginning)

you can try to use btrfs with zcache but most likely a (yet to be fixed) BUG will be triggered: http://forums.gentoo.org/viewtopic-p...9.html#6571799

upstream has been notified - no solution or patch to fix it has been posted yet

- more efficiency in CFS (cpu scheduler): removed cruft from HT scheduler
- more memory efficiency: fixed memory leaks in zcache, filesystem, and "fs: remove 8 bytes of padding from block_device on 64bit builds"
- latest btrfs from February 15th
- fixes for ext4 & ability to disable inode_readahead_blks (inode_readahead_blks=0)
- linux-phc (undervolting of the CPU to prolong battery runtime on note- and netbooks)

kudos to all devs making this possible !

linux-phc only seems to support undervolting - no over- or underclocking so far

so you still need to set those things in your Bios or EFI

Quote:

- linux-phc (undervolting of the CPU to prolong battery runtime on note- and netbooks)
02-20-2011, 09:07 AM
kernelOfTruth

please apply:

Quote:

Update9:

*Hotfix* for zcache:

2.6.37_plus_v16_zcache_linux-next_fixes.patch (2.85 KB) (multiupload.com)

2.6.37_plus_v16_zcache_linux-next_fixes.patch (pastebin.com mirror)

Quote:

Originally Posted by md5sum 2.6.37_plus_v16_zcache_linux-next_fixes.patch

9fc278096e07c8bde4af7ebb5ee823bb 2.6.37_plus_v16_zcache_linux-next_fixes.patch

contents:

* [PATCH] zcache: Fix build error when sysfs is not defined
* static int cleancache_get_key from linux-next
* fix for fs/super.c (will be included in next release of zcache) - kudos & thanks to Dan Magenheimer !

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