2.2.2-pre2_arca-5.gz

Andrea Arcangeli (andrea@e-mind.com)
Sun, 14 Feb 1999 16:55:19 +0100 (CET)


Name: 2.2.2-pre2_arca-5.gz
Version: 2.2.2-pre2_arca-5
Kernelver: 2.2.2-pre2
Status: unknown
Author: Andrea Arcangeli <andrea@e-mind.com>
Description: Andrea Arcangeli's kernel tree
Date: 14-FEB-1999
Descfile-URL: ftp://e-mind.com/pub/linux/arca-tree/README
Download-URL: ftp://e-mind.com/pub/linux/arca-tree/

Differences with `Kernelver':

o semaphore down_interruptible() race fixes

o new shrink_mmap() that works on a perfect lru basis and doesn't need
to waste time browsing the mem_map, and mem_map L1 cache aligned in SMP

o inode cache freeing when low on memory

o inode leakage fix (syncing back dirty inode when there's noting
of freeable in the inode-inuse list).

o fixed kpiod (PF_MEMALLOC) and improved

o complete /proc race fixes

o my latest VM with nr_freeable_pages balance. It should work very
well on low memory and the system should run smoothly also under
intensive swap operations.

o improved tqueue.h (better scale in SMP and removed a cli() in
run_task_queue())

o My new update_shared_mappings() code. This will greatly improve
performance while handling shared mmaped files from different contexts.

o irq_state array is PII cache aligned (32byte to decrease bus traffic
under intense irq activities in SMP)

o dynamic buffer hash table size (improvement for high memory
machines, and saved memory for low memory machines)

o final fix for the disable/enable_bh I fixed some weeks ago
This patch fix also a possible not critical race in remove_bh(),
btw note the wmb() to take care of SMP ;).

o IEEE1284 parport code developed by Tim Waugh (works very well and print
using a FIFO that handle the comaptibility mode in hardware).

o get_wchan() moved in arch specific section and CTRL+SCROLL-LOCK
use get_wchan() to get the PC filed information.

o fixed page bound limits and the case of a new forked not
scheduled yet process in get_wchan()

o some jiffies wrap update

o reimplemented hopefully completly wrap compliant time
to jiffies/msec (and reverse) functions

o little vmalloc fix + vmalloc SMP thread safety

o bttv doesn't generate 50 irq per sec even if not used

o sure some other thing from me and/or from other people

Andrea Arcangeli

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