Commit Graph

52174 Commits

Author SHA1 Message Date
Mark Fasheh
363041a5f7 ocfs2: temporarily remove extent map caching
The code in extent_map.c is not prepared to deal with a subtree being
rotated between lookups. This can happen when filling holes in sparse files.
Instead of a lengthy patch to update the code (which would likely lose the
benefit of caching subtree roots), we remove most of the algorithms and
implement a simple path based lookup. A less ambitious extent caching scheme
will be added in a later patch.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 15:01:31 -07:00
Mark Fasheh
dcd0538ff4 ocfs2: sparse b-tree support
Introduce tree rotations into the b-tree code. This will allow ocfs2 to
support sparse files. Much of the added code is designed to be generic (in
the ocfs2 sense) so that it can later be re-used to implement large
extended attributes.

This patch only adds the rotation code and does minimal updates to callers
of the extent api.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:44:03 -07:00
Mark Fasheh
6f16bf655c ocfs2: small cleanup of ocfs2_request_delete()
There are two checks in there (one for inode newness, one for other mounted
nodes) which are unnecessary, so remove them. The DLM will allow the trylock
in either case without any messaging overhead.

Removing these makes ocfs2_request_delete() a one liner function, so just
move the trylock out one level into ocfs2_query_inode_wipe().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:40:55 -07:00
Tiger Yang
68e2b740c4 ocfs2: remove unused code
Remove node messaging code that becomes unused with the delete inode vote
removal.

[Removed even more cruft which I spotted during review --Mark]

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:40:16 -07:00
Tiger Yang
500086300e ocfs2: Remove delete inode vote
Ocfs2 currently does cluster-wide node messaging to check the open state of
an inode during delete. This patch removes that mechanism in favor of an
inode cluster lock which is taken at shared read when an inode is first read
and dropped in clear_inode(). This allows a deleting node to test the
liveness of an inode by attempting to take an exclusive lock.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 14:39:48 -07:00
Jamal Hadi Salim
566ec03448 [XFRM]: Missing bits to SAD info.
This brings the SAD info in sync with net-2.6.22/net-2.6

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 14:12:15 -07:00
Mark Fasheh
a9f5f70739 ocfs2: filter more error prints
We don't want to print anything at all in ocfs2_lookup() when getting an
error from ocfs2_iget() - it could be something as innocuous as a signal
being detected in the dlm.

ocfs2_permission() should filter on -ENOENT which ocfs2_meta_lock() can
return if the inode was deleted on another node.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:39:08 -07:00
Sunil Mushran
bebe6f120b ocfs2: Replace panic() with emergency_restart() when fencing
We have noticed panic() hanging leading us to a situation in which
the node, while otherwise dead, is still disk heartbeating. This
leads to a hung cluster as the other nodes are waiting for this
node to stop disk heartbeating. This situation is only resolved
by power resetting the box.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:39:02 -07:00
Sunil Mushran
5d262cc7dd ocfs2: Silence compiler warnings
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:38:55 -07:00
Mark Fasheh
be9e986b82 ocfs2: Local mounts should skip inode updates
We don't want the extent map and uptodate cache destruction in
ocfs2_meta_lock_update() on a local mount, so skip that.

This fixes several bugs with uptodate being cleared on buffers and extent
maps being corrupted.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:35:21 -07:00
Sunil Mushran
0d01af6e5d ocfs2_dlm: Call cond_resched_lock() once per hash bucket scan
In dlm_migrate_all_locks(), we currently call cond_resched_lock() after
processing each lockres in a hash bucket. Move it outside the loop so as to
call it only after the entire hash bucket has been processed.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:33:11 -07:00
Srinivas Eeda
756a1501dd ocfs2_dlm: fix race in dlm_remaster_locks
There is a possibility that dlm_remaster_locks could overwride node->state
with DLM_RECO_NODE_DATA_REQUESTED after dlm_reco_data_done_handler sets the
node->state to DLM_RECO_NODE_DATA_DONE. This could lead to recovery getting
stuck and requires a cluster reboot. Synchronize with dlm_reco_state_lock
spinlock.

Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-04-26 13:33:02 -07:00
Stephen Rothwell
ee5ac9ddf2 [SPARC]: device_node name constification fallout
A couple of routines need their arguments to be const.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:45 -07:00
David S. Miller
3e4d26508a [SPARC64]: Convert SBUS over to generic iommu/strbuf structs.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:44 -07:00
David S. Miller
6687508809 [SPARC64]: Add generic iommu and strbuf structs to iommu.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:43 -07:00
David S. Miller
9b3627f389 [SPARC64]: Consolidate {sbus,pci}_iommu_arena.
Move to asm-sparc64/iommu.h and rename to plain "iommu_arena".

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:42 -07:00
Stephen Rothwell
711b360d64 [SPARC]: Make device_node name and type const
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:41 -07:00
Stephen Rothwell
3dfe10ee7c [SPARC64]: constify some paramaters of OF routines
This starts bringing the PowerPC and Sparc64 implemetations back closer
together.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:40 -07:00
David S. Miller
374d4cac62 [TIGON3]: of_get_property() returns const.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:38 -07:00
David S. Miller
a165b4205e [SPARC64]: Fix PCI rework to adhere to of_get_property() const return.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:37 -07:00
David S. Miller
f1cfdb55f1 [SPARC64]: Document and fix calculation of pages_avail.
It should be set to the total number of pages that the
system will really have available after things like
initmem, the bootmem map, and initrd are freed up.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:36 -07:00
David S. Miller
0f3e25049e [SPARC64]: Make sure pbm->prom_node is setup easly enough in psycho.c
It needs to be ready before we invoke pci_determine_mem_io_space().

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:35 -07:00
David S. Miller
3996465392 [SPARC64]: Use bootmem_bootmap_pages() in choose_bootmap_pfn().
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:34 -07:00
David S. Miller
b93f262023 [SPARC64]: Add proper header file extern for cmdline_memory_size.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:33 -07:00
David S. Miller
9753f0d650 [SPARC64]: Kill sparc_ultra_dump_{i,d}tlb()
While useful in odd circumstances to debug something, they are
normally totally unused and anyone can fetch this code out of the
history if they really need it.

And in any event, the person who needs this kind of code is usually me
:-)

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:32 -07:00
David S. Miller
85f1e1f660 [SPARC64]: Use DECLARE_BITMAP and BITS_TO_LONGS in mm/init.c
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:31 -07:00
David S. Miller
5be4a96367 [SPARC64]: Give move verbose show_mem() output just like i386.
We now report everything i386 does except for highmem which
doesn't apply.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:30 -07:00
David S. Miller
28256ca2e0 [SPARC64]: Mark show_mem() printk's with KERN_INFO.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:28 -07:00
David S. Miller
a94aa25306 [SPARC64]: Kill kvaddr_to_phys() and friends.
Just inline it into flush_icache_range() which is the only
user.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:27 -07:00
David S. Miller
4be5c34dc4 [SPARC64]: Privatize sun4u_get_pte() and fix name.
__get_phys is only called from init.c as is prom_virt_to_phys(),
__get_iospace() is not called at all, and sun4u_get_pte() is largely
misnamed.

Privatize the implementation and helper functions of
sun4u_get_phys() to mm/init.c, and rename to
kvaddr_to_paddr().

The only used of this thing is flush_icache_range(), and thus
things can be considerably further simplified.  For example,
we should only see module or PAGE_OFFSET kernel addresses here,
so we don't need the OBP firmware range handling at all.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:26 -07:00
David S. Miller
a0963bdfb9 [SPARC64]: Kill _start[]/_end[] declarations in mm/init.c
We already get those from asm/sections.h

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:25 -07:00
David S. Miller
4e286d5be6 [SPARC64]: MAX_PHYSADDR_BITS et al. really need to be 42 bits not 41.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:24 -07:00
David S. Miller
0015d3d68c [SPARC64]: Simplify read_obp_memory().
Kick out empty entries as soon as we spot them, and use memmove()
instead of a silly loop to make the operation more clear.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:23 -07:00
David S. Miller
d78d0891d3 [SPARC64]: Use SPARSEMEM_STATIC
Decrease the SECTION_SIZE_BITS --> MAX_PHYSADDR_BITS
range a little bit.

The cost of going to SPARSEMEM_STATIC becomes 8K of BSS space, and in
return we save a pointer dereferences on every page struct lookup.
Even better we hit the main kernel image for the base address which is
in a hugepage locked TLB entry.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:22 -07:00
David S. Miller
43bed12737 [SPARC64]: Use DECLARE_BITMAP in struct pci_iommu.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:21 -07:00
David S. Miller
28f57e774d [SPARC64]: Force dummy host controller onto bus zero.
This helps deal with the invisible bridge that sits between
the host controller and the top-most visisble PCI devices
on hypervisor systems.

For example, on T1000 the bus-range property says 2 --> 4
and so there is a PCI express bridge at bus 2, devfn 0, etc.

So if we don't force the dummy host controller to bus zero,
we'll try to create two devices with the same domain/bus/devfn
triplet.

Also, add some more log diagnostics to make debugging stuff like this
easyer.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:20 -07:00
David S. Miller
97b3cf050b [SPARC64]: Add dummy host controller to root of all PCI domains.
We fake up a dummy one in all cases because that is the simplest
thing to do and it happens to be necessary for hypervisor systems.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:19 -07:00
David S. Miller
c6e87566ea [SPARC64]: Const'ify pci_iommu_ops.
Based upon a similar patch for x86_64 written by
Stephen Hemminger.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:18 -07:00
David S. Miller
0bba2dd823 [SPARC64]: Kill pbm->pci_first_slot.
Set but never used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:17 -07:00
David S. Miller
3875c5c02d [SPARC64]: Kill pci_controller->pbms_same_domain
We don't do the "Simba APB is a PBM" bogosity for Sabre
controllers any longer, so this pbms_same_domain thing
is no longer necessary.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:16 -07:00
David S. Miller
8d3aee9375 [SPARC64]: Kill pci_controller->base_address_update().
Implemented but never actually used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:15 -07:00
David S. Miller
0bae5f81b6 [SPARC64]: Kill pci_controller->resource_adjust()
All the implementations can be identical and generic, so
no need for controller specific methods.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:14 -07:00
David S. Miller
3487a1f9e7 [SPARC64]: Kill PBM ranges software state.
It is only used in one spot and we can just fetch the
OF property right there.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:13 -07:00
David S. Miller
229177c7f3 [SPARC64]: Kill PBM intmap software state.
Set but never used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:12 -07:00
David S. Miller
9fd8b64761 [SPARC64]: Consolidate PCI mem/io resource determination.
It can be done for every PCI configuration using OF properties.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:11 -07:00
David S. Miller
01f94c4a6c [SPARC64]: Fix sabre pci controllers with new probing scheme.
The SIMBA APB bridge is strange, it is a PCI bridge but it lacks
some standard OF properties, in particular it lacks a 'ranges'
property.

What you have to do is read the IO and MEM range registers in
the APB bridge to determine the ranges handled by each bridge.
So fill in the bus resources by doing that.

Since we now handle this quirk in the generic PCI and OF device
probing layers, we can flat out eliminate all of that code from
the sabre pci controller driver.

In fact we can thus eliminate completely another quirk of the sabre
driver.  It tried to make the two APB bridges look like PBMs but that
makes zero sense now (and it's questionable whether it ever made sense).
So now just use pbm_A and probe the whole PCI hierarchy using that as
the root.

This simplification allows many future cleanups to occur.

Also, I've found yet another quirk that needs to be worked around
while testing this.  You can't use the 'class-code' OF firmware
property, especially for IDE controllers.  We have to read the value
out of PCI config space or else we'll see the value the device was
showing before it was programmed into native mode.

I'm starting to think it might be wise to just read all of the values
out of PCI config space instead of using the OF properties. :-/

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:10 -07:00
David S. Miller
a378fd0ee8 [SPARC64]: Fix obppath pci device sysfs creation.
Need to traverse recursively down child busses else we only
get the file created under devices at the top-level.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:09 -07:00
David S. Miller
bc606f3c91 [SPARC64]: Minor cleanups to schizo pci controller driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:08 -07:00
David S. Miller
1e8a8cc52d [SPARC64]: Internalize pci_memspace_mask.
The only user was bus_dvma_to_mem() which is no longer used
by any driver, so kill that, and the export of pci_memspace_mask.

The only user now is the PCI mmap support code.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:07 -07:00
David S. Miller
a2fb23af1c [SPARC64]: Probe PCI bus using OF device tree.
Almost entirely taken from the 64-bit PowerPC PCI code.

This allowed to eliminate a ton of cruft from the sparc64
PCI layer.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26 01:55:06 -07:00