Gc Linux 2 Git Log


Commit Date  
[a2755a] (v2.6.12-rc3) by Linus Torvalds Linus Torvalds

Linux v2.6.12-rc3

Releasing this will also make "git" the official source control
thing. Here's to hoping for the best.

2005-04-20 23:24:21 Tree
[4d78b6] by Herbert Xu Herbert Xu , pushed by David S. Miller David S. Miller

[IPSEC]: COW skb header in UDP decap

The following patch just makes the header part of the skb writeable.
This is needed since we modify the IP headers just a few lines below.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:48:59 Tree
[c7f905] by Herbert Xu Herbert Xu , pushed by David S. Miller David S. Miller

[ATALK]: Add missing dev_hold() to atrtr_create().

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:44:17 Tree
[88a668] by Arnaldo Carvalho de Melo Arnaldo Carvalho de Melo , pushed by David S. Miller David S. Miller

[SOCK]: on failure free the sock from the right place

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:41:54 Tree
[9c2b33] by Stephen Hemminger Stephen Hemminger , pushed by David S. Miller David S. Miller

[NET]: skbuff: remove old NET_CALLER macro

Here is a revised alternative that uses BUG_ON/WARN_ON
(as suggested by Herbert Xu) to eliminate NET_CALLER.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:39:42 Tree
[98f245] by David S. Miller David S. Miller

[RTNETLINK]: Add comma to final entry in link_rtnetlink_table

Noticed by Herbert Xu.

Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:37:04 Tree
[240eed] by Thomas Graf Thomas Graf , pushed by David S. Miller David S. Miller

[RTNETLINK]: Protocol family wildcard dumping for routing rules

Be kind to userspace and don't force them to hardcode protocol
families just to have it changed again once we support routing
rules for more than one protocol family.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:35:07 Tree
[3320da] by Herbert Xu Herbert Xu , pushed by David S. Miller David S. Miller

[IPV6]: Replace bogus instances of inet->recverr

While looking at this problem I noticed that IPv6 was sometimes
looking at inet->recverr which is bogus. Here is a patch to
correct that and use np->recverr.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:32:22 Tree
[357b40] by Herbert Xu Herbert Xu , pushed by David S. Miller David S. Miller

[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory

So here is a patch that introduces skb_store_bits -- the opposite of
skb_copy_bits, and uses them to read/write the csum field in rawv6.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:30:14 Tree
[fd9283] by YOSHIFUJI Hideaki YOSHIFUJI Hideaki , pushed by David S. Miller David S. Miller

[IPV6]: Fix a branch prediction

From: Tushar Gohad <tgohad@mvista.com>

Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 05:27:09 Tree
[c4d541] by Herbert Xu Herbert Xu , pushed by David S. Miller David S. Miller

[NET]: Shave sizeof(ptr) bytes off dst_entry

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

2005-04-20 03:46:37 Tree
[561bbe] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: remove FIRST_USER_ADDRESS hack

Once all the MMU architectures define FIRST_USER_ADDRESS, remove hack from
mmap.c which derived it from FIRST_USER_PGD_NR.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:23 Tree
[d455a3] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: arch FIRST_USER_ADDRESS 0

Replace misleading definition of FIRST_USER_PGD_NR 0 by definition of
FIRST_USER_ADDRESS 0 in all the MMU architectures beyond arm and arm26.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:23 Tree
[cdfb82] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: arm26 FIRST_USER_ADDRESS PAGE_SIZE

ARM26 define FIRST_USER_ADDRESS as PAGE_SIZE (beyond the machine vectors when
they are mapped low), and use that definition in place of locally defined
MIN_MAP_ADDR. Previously, ARM26 permitted user mappings at 0 if the machine
vectors were mapped high; but that's inconsistent with ARM, and
FIRST_USER_ADDRESS would then have to be determined at runtime. Let's fix it
at PAGE_SIZE throughout the architecture.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:22 Tree
[6119be] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: arm FIRST_USER_ADDRESS PAGE_SIZE

ARM define FIRST_USER_ADDRESS as PAGE_SIZE (beyond the machine vectors when
they are mapped low), and use that definition in place of locally defined
MIN_MAP_ADDR.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:21 Tree
[8462e2] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: sys_mincore ignore FIRST_USER_PGD_NR

Remove use of FIRST_USER_PGD_NR from sys_mincore: it's inconsistent (no other
syscall refers to it), unnecessary (sys_mincore loops over vmas further down)
and incorrect (misses user addresses in ARM's first pgd).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:20 Tree
[e2cdef] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: free_pgtables from FIRST_USER_ADDRESS

The patches to free_pgtables by vma left problems on any architectures which
leave some user address page table entries unencapsulated by vma. Andi has
fixed the 32-bit vDSO on x86_64 to use a vma. Now fix arm (and arm26), whose
first PAGE_SIZE is reserved (perhaps) for machine vectors.

Our calls to free_pgtables must not touch that area, and exit_mmap's
BUG_ON(nr_ptes) must allow that arm's get_pgd_slow may (or may not) have
allocated an extra page table, which its free_pgd_slow would free later.

FIRST_USER_PGD_NR has misled me and others: until all the arches define
FIRST_USER_ADDRESS instead, a hack in mmap.c to derive one from t'other. This
patch fixes the bugs, the remaining patches just clean it up.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:19 Tree
[021740] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: hugetlb area is clean

Once we're strict about clearing away page tables, hugetlb_prefault can assume
there are no page tables left within its range. Since the other arches
continue if !pte_none here, let i386 do the same.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:18 Tree
[146425] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: mpnt to vma cleanup

While dabbling here in mmap.c, clean up mysterious "mpnt"s to "vma"s.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:18 Tree
[8f6c99] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: remove arch pgd_addr_end

ia64 and sparc64 hurriedly had to introduce their own variants of
pgd_addr_end, to leapfrog over the holes in their virtual address spaces which
the final clear_page_range suddenly presented when converted from pgd_index to
pgd_addr_end. But now that free_pgtables respects the vma list, those holes
are never presented, and the arch variants can go.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:17 Tree
[3bf5ee] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: hugetlb_free_pgd_range

ia64 and ppc64 had hugetlb_free_pgtables functions which were no longer being
called, and it wasn't obvious what to do about them.

The ppc64 case turns out to be easy: the associated tables are noted elsewhere
and freed later, safe to either skip its hugetlb areas or go through the
motions of freeing nothing. Since ia64 does need a special case, restore to
ppc64 the special case of skipping them.

The ia64 hugetlb case has been broken since pgd_addr_end went in, though it
probably appeared to work okay if you just had one such area; in fact it's
been broken much longer if you consider a long munmap spanning from another
region into the hugetlb region.

In the ia64 hugetlb region, more virtual address bits are available than in
the other regions, yet the page tables are structured the same way: the page
at the bottom is larger. Here we need to scale down each addr before passing
it to the standard free_pgd_range. Was about to write a hugely_scaled_down
macro, but found htlbpage_to_page already exists for just this purpose. Fixed
off-by-one in ia64 is_hugepage_only_range.

Uninline free_pgd_range to make it available to ia64. Make sure the
vma-gathering loop in free_pgtables cannot join a hugepage_only_range to any
other (safe to join huges? probably but don't bother).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:16 Tree
[ee39b3] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: remove MM_VM_SIZE(mm)

There's only one usage of MM_VM_SIZE(mm) left, and it's a troublesome macro
because mm doesn't contain the (32-bit emulation?) info needed. But it too is
only needed because we ignore the end from the vma list.

We could make flush_pgtables return that end, or unmap_vmas. Choose the
latter, since it's a natural fit with unmap_mapping_range_vma needing to know
its restart addr. This does make more than minimal change, but if unmap_vmas
had returned the end before, this is how we'd have done it, rather than
storing the break_addr in zap_details.

unmap_vmas used to return count of vmas scanned, but that's just debug which
hasn't been useful in a while; and if we want the map_count 0 on exit check
back, it can easily come from the final remove_vm_struct loop.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:15 Tree
[e0da38] by Hugh Dickins Hugh Dickins , pushed by Linus Torvalds Linus Torvalds

[PATCH] freepgt: free_pgtables use vma list

Recent woes with some arches needing their own pgd_addr_end macro; and 4-level
clear_page_range regression since 2.6.10's clear_page_tables; and its
long-standing well-known inefficiency in searching throughout the higher-level
page tables for those few entries to clear and free: all can be blamed on
ignoring the list of vmas when we free page tables.

Replace exit_mmap's clear_page_range of the total user address space by
free_pgtables operating on the mm's vma list; unmap_region use it in the same
way, giving floor and ceiling beyond which it may not free tables. This
brings lmbench fork/exec/sh numbers back to 2.6.10 (unless preempt is enabled,
in which case latency fixes spoil unmap_vmas throughput).

Beware: the do_mmap_pgoff driver failure case must now use unmap_region
instead of zap_page_range, since a page table might have been allocated, and
can only be freed while it is touched by some vma.

Move free_pgtables from mmap.c to memory.c, where its lower levels are adapted
from the clear_page_range levels. (Most of free_pgtables' old code was
actually for a non-existent case, prev not properly set up, dating from before
hch gave us split_vma.) Pass mmu_gather** in the public interfaces, since we
might want to add latency lockdrops later; but no attempt to do so yet, going
by vma should itself reduce latency.

But what if is_hugepage_only_range? Those ia64 and ppc64 cases need careful
examination: put that off until a later patch of the series.

What of x86_64's 32bit vdso page __map_syscall32 maps outside any vma?

And the range to sparc64's flush_tlb_pgtables? It's less clear to me now that
we need to do more than is done here - every PMD_SIZE ever occupied will be
flushed, do we really have to flush every PGDIR_SIZE ever partially occupied?
A shame to complicate it unnecessarily.

Special thanks to David Miller for time spent repairing my ceilings.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-04-19 20:29:15 Tree
[9f6c6f] by Linus Torvalds Linus Torvalds

Merge with kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6.git/

for 13 driver core, sysfs, and debugfs fixes.

2005-04-19 20:14:28 Tree
[c3c661] by Linus Torvalds Linus Torvalds

Merge with kernel.org:/pub/scm/linux/kernel/git/gregkh/aoe-2.6.git/

for 11 aoe bugfix patches.

2005-04-19 20:12:03 Tree
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