David Chinner [EMAIL PROTECTED] writes:
The xfs inodes are clearly pinned by the dentry cache, so the issue
is dentries, not inodes. What's causing dentries not to be
reclaimed? I can't see anything that cold pin them (e.g. no filp's
that would indicate open files being responsible), so my
On Wednesday 20 February 2008 01:44:38 Gordon Farquharson wrote:
Hi Michael
On Feb 19, 2008 3:41 AM, Michael Buesch [EMAIL PROTECTED] wrote:
[2]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7492d4a416d68ab4bd254b36ffcc4e0138daa8ff
That doesn't
mISDN has two problems, which are of course interrelated:
a) complete lack of documentation for the in-kernel driver interface
(equivalent of Documentation/isdn/INTERFACE)
b) still doesn't support all the hardware isdn4linux supports.
As long as those problems aren't solved, the old
On Thu, Feb 21, 2008 at 01:13:48AM +1100, Stephen Rothwell wrote:
Hi Miklos,
On Tue, 19 Feb 2008 14:32:28 +0100 Miklos Szeredi [EMAIL PROTECTED] wrote:
I've created a git tree with the following mounts related stuff:
- read-only bind mounts
- /proc/pid/mountinfo
-
Hi,
I'm looking at 2.6.25-rc2. vsyscall_sysctl_change contains code to NOP
out the actual system call instructions of the vsyscall page when
vsyscall64 is enabled. This seems to interact badly with the fallback
code in do_vgettimeofday which tries to call gettimeofday if the
configured clock
Marcel Holtmann schrieb:
My proposal is to merge mISDN and then see what falls out. My guess it
won't be that bad as everybody thinks and then we go from there. Next
step is to remove ISDN4Linux since that should not be used at all
anymore.
No. Next step is to create the missing
On Tue, 2008-02-19 at 15:30 -0800, Andrew Morton wrote:
On Tue, 19 Feb 2008 12:41:51 -0600 Adam Litke [EMAIL PROTECTED] wrote:
Indeed. I'll take credit for this thinko...
On Tue, 2008-02-19 at 18:28 +, Andy Whitcroft wrote:
When we free a page via free_huge_page and we detect
Hi,
On Wednesday 20 February 2008, Kamalesh Babulal wrote:
Hi,
The next-20080219 kernel oops while booting up on x86_64 box. This bug
was fixed in the 2.6.24-git(s) with the patch posted at
http://lkml.org/lkml/2008/2/11/350
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
BUG: unable to handle
Balbir == Balbir Singh [EMAIL PROTECTED] writes:
Balbir Andi Kleen wrote:
Document huge memory/cache overhead of memory controller in Kconfig
I was a little surprised that 2.6.25-rc* increased struct page for the memory
controller. At least on many x86-64 machines it will not fit into a
then.
This oops is visible in the linux-next-20080220 kernel also.The machine is
power4+ box with four cpus and
has 30 GB RAM.
oops while running kernbench
-
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=32 NUMA pSeries
Modules linked in:
NIP
Michael Chan wrote:
On Tue, 2008-02-19 at 17:14 -0500, Tony Battersby wrote:
Update: when I revert Herbert's patch in addition to applying your
patch, the iSCSI performance goes back up to 115 MB/s again in both
directions. So it looks like turning off SG for TX didn't itself cause
the
On Wed, 2008-02-20 at 16:34 +1100, Stephen Rothwell wrote:
Hi all,
I have created today's linux-next tree at
git://git.kernel.org/pub/scm/linux/kernel/git/sfr/linux-next.git.
You can see which trees have been included by looking in the Next/Trees
file in the source. There are also
Hi Linus,
On Thu, 14 Feb 2008 10:01:14 -0800 (PST) Linus Torvalds [EMAIL PROTECTED]
wrote:
I absolutely have no problem with having a this is the infrastrcture
changes that will go into the next release. In fact, I can even
*maintain* such a branch.
I've not wanted to open up a second
Hi joern,
this patch addresses a number of small issues mainly regarding
the output made by this driver to dmesg:
- Some of the blkmtd's had not been changed to block2mtd which
caused display problem
- the parse_err() macro was displaying block2mtd: twice
Signed-off-by: Stephane
Dhaval Giani wrote:
Hi Ingo,
ftrace-cmd in -w option when being run for sometime cause this.
llm11.in.ibm.com login: [ 1002.937490] BUG: unable to handle kernel paging
request at 285b0010
[ 1002.947087] IP: [c015f7b5] find_next_entry+0x4f/0x84
Dhaval,
First, thanks for testing
Are
On Tue, Feb 12, 2008 at 04:08:16PM -0500, Neil Horman wrote:
Neil, is it possible to do some serial console debugging to find out
where exactly we are hanging? Beats me, what's that operation which can
not be executed while being in NMI handler and makes system to hang. I am
also
Restrict objects from reserve slabs (ALLOC_NO_WATERMARKS) to allocation
contexts that are entitled to it. This is done to ensure reserve pages don't
leak out and get consumed.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/slub_def.h |1
mm/slab.c| 60
Tag pages allocated from the reserves with a non-zero page-reserve.
This allows us to distinguish and account reserve pages.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/mm_types.h |1 +
mm/page_alloc.c |4 +++-
2 files changed, 4 insertions(+), 1
Provide a method to get the upper bound on the pages needed to allocate
a given number of objects from a given kmem_cache.
This lays the foundation for a generic reserve framework as presented in
a later patch in this series. This framework needs to convert object demand
(kmalloc() bytes,
Provide means to reserve a specific amount of pages.
The emergency pool is separated from the min watermark because ALLOC_HARDER
and ALLOC_HIGH modify the watermark in a relative way and thus do not ensure
a strict minimum.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
Generic reserve management code.
It provides methods to reserve and charge. Upon this, generic alloc/free style
reserve pools could be build, which could fully replace mempool_t
functionality.
It should also allow for a Banker's algorithm replacement of __GFP_NOFAIL.
Signed-off-by: Peter
Wrap calling sk-sk_backlog_rcv() in a function. This will allow extending the
generic sk_backlog_rcv behaviour.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/net/sock.h |5 +
include/net/tcp.h|2 +-
net/core/sock.c |4 ++--
net/ipv4/tcp.c |2 +-
Failing to allocate a cache entry will only harm performance not correctness.
Do not consume valuable reserve pages for something like that.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
Acked-by: James Morris [EMAIL PROTECTED]
---
security/selinux/avc.c |2 +-
1 file changed, 1
Add some packet-split receive hooks.
For one this allows to do NUMA node affine page allocs. Later on these hooks
will be extended to do emergency reserve allocations for fragments.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
drivers/net/bnx2.c |8 +++-
Factor out the gfp to alloc_flags mapping so it can be used in other places.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/internal.h | 11 ++
mm/page_alloc.c | 98
2 files changed, 67 insertions(+), 42 deletions(-)
Provide the basic infrastructure to reserve and charge/account network memory.
We provide the following reserve tree:
1) total network reserve
2)network TX reserve
3) protocol TX pages
4)network RX reserve
5) SKB data reserve
[1] is used to make all the network reserves a
Hi,
Another posting of the full swap over NFS series.
Andrew/Linus, could we start thinking of sticking this in -mm?
[ patches against 2.6.25-rc2-mm1, also to be found online at:
http://programming.kicks-ass.net/kernel-patches/vm_deadlock/v2.6.25-rc2-mm1/ ]
The patch-set can be split in
In order to teach filesystems to handle swap cache pages, two new page
functions are introduced:
pgoff_t page_file_index(struct page *);
struct address_space *page_file_mapping(struct page *);
page_file_index - gives the offset of this page in the file in PAGE_CACHE_SIZE
blocks. Like
Implement all the new swapfile a_ops for NFS. This will set the NFS socket to
SOCK_MEMALLOC and run socket reconnect under PF_MEMALLOC as well as reset
SOCK_MEMALLOC before engaging the protocol -connect() method.
PF_MEMALLOC should allow the allocation of struct socket and related objects
and
Replace all relevant occurences of page-index and page-mapping in the NFS
client with the new page_file_index() and page_file_mapping() functions.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/file.c |6 +++---
fs/nfs/internal.h |7 ---
fs/nfs/pagelist.c |6
Avoid memory getting stuck waiting for userspace, drop all emergency packets.
This of course requires the regular storage route to not include an NF_QUEUE
target ;-)
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
net/netfilter/core.c |3 +++
1 file changed, 3 insertions(+)
Index:
Change ALLOC_NO_WATERMARK page allocation such that the reserves are system
wide - which they are per setup_per_zone_pages_min(), when we scrape the
barrel, do it properly.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/page_alloc.c |6 ++
1 file changed, 6 insertions(+)
Index:
It could happen that all !SOCK_MEMALLOC sockets have buffered so much data
that we're over the global rmem limit. This will prevent SOCK_MEMALLOC buffers
from receiving data, which will prevent userspace from running, which is needed
to reduce the buffered data.
Fix this by exempting the
In order to make sure emergency packets receive all memory needed to proceed
ensure processing of emergency SKBs happens under PF_MEMALLOC.
Use the (new) sk_backlog_rcv() wrapper to ensure this for backlog processing.
Skip taps, since those are user-space again.
Signed-off-by: Peter Zijlstra
Change the skb allocation api to indicate RX usage and use this to fall back to
the reserve when needed. SKBs allocated from the reserve are tagged in
skb-emergency.
Teach all other skb ops about emergency skbs and the reserve accounting.
Use the (new) packet split API to allocate and track
Introduce sk_allocation(), this function allows to inject sock specific
flags to each sock related allocation.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/net/sock.h|5 +
net/ipv4/tcp.c|3 ++-
net/ipv4/tcp_output.c | 12 +++-
net/ipv6/tcp_ipv6.c
Herbert Xu wrote:
On Tue, Feb 19, 2008 at 05:14:26PM -0500, Tony Battersby wrote:
Update: when I revert Herbert's patch in addition to applying your
patch, the iSCSI performance goes back up to 115 MB/s again in both
directions. So it looks like turning off SG for TX didn't itself cause
James Bottomley wrote:
On Wed, 2008-02-20 at 16:34 +1100, Stephen Rothwell wrote:
There were no merge conflicts and only one build failure!
Is the merge log available anywhere yet?
Yes, there is the Next/merge.log file in linux-next.
John Stoffel wrote:
I know this is a pedantic comment, but why the heck is it called such
a generic term as Memory Controller which doesn't give any
indication of what it does.
Shouldn't it be something like Memory Quota Controller, or Memory
Limits Controller?
It's called the memory
Karl Dahlke wrote:
Meantime, I pulled the emails out of the headers and pasted them in.
Hope that reasonably works.
Well, you're still breaking the thread by starting a new one.
Guess when you're implementing reply-to-all, you should also think about
implementing support for In-Reply-To: and
Ingo Molnar wrote:
* Mike Travis [EMAIL PROTECTED] wrote:
This patchset is the x86-specific part split from the generic part of
the zero-based patchset.
thanks Mike, applied them to x86.git. Do these depend on the generic
bits? (for now we'll keep these in -testing, so that they do not
Add reserves for INET.
The two big users seem to be the route cache and ip-fragment cache.
Reserve the route cache under generic RX reserve, its usage is bounded by
the high reclaim watermark, and thus does not need further accounting.
Reserve the ip-fragement caches under SKB data reserve,
Do as Trond suggested:
http://lkml.org/lkml/2006/8/25/348
Disable NFS data cache revalidation on swap files since it doesn't really
make sense to have other clients change the file while you are using it.
Thereby we can stop setting PG_private on swap pages, since there ought to
be no further
Toss all emergency packets not for a SOCK_MEMALLOC socket. This ensures our
precious memory reserve doesn't get stuck waiting for user-space.
The correctness of this approach relies on the fact that networks must be
assumed lossy.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
__GFP_MEMALLOC will allow the allocation to disregard the watermarks,
much like PF_MEMALLOC.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
include/linux/gfp.h |3 ++-
mm/page_alloc.c |4 +++-
2 files changed, 5 insertions(+), 2 deletions(-)
Index:
On Wed, Feb 20, 2008 at 10:02:18AM -0500, Steven Rostedt wrote:
Dhaval Giani wrote:
Hi Ingo,
ftrace-cmd in -w option when being run for sometime cause this.
llm11.in.ibm.com login: [ 1002.937490] BUG: unable to handle kernel paging
request at 285b0010
[ 1002.947087] IP: [c015f7b5]
New addres_space_operations methods are added:
int swapfile(struct address_space *, int);
int swap_out(struct file *, struct page *, struct writeback_control *);
int swap_in(struct file *, struct page *);
When during sys_swapon() the swapfile() method is found and returns no error
the
GFP_NOFS is not enough, since swap traffic is IO, hence fall back to GFP_NOIO.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/pagelist.c |2 +-
fs/nfs/write.c|6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
Index: linux-2.6/fs/nfs/write.c
Karl Dahlke wrote:
As was pointed out, it is difficult to place an accessibility adapter
under one particular subsystem.
Mine takes over the screen, to be a screen reader,
and it captures tty output, because it is more than just a screen reader,
it buffers output, exactly as generated, for my
On Wed, 20 February 2008 15:00:21 +, Stephane Chazelas wrote:
this patch addresses a number of small issues mainly regarding
the output made by this driver to dmesg:
- Some of the blkmtd's had not been changed to block2mtd which
caused display problem
- the parse_err() macro was
Remove the final line in asm-x86/desc_64.h
Signed-off-by: Avi Kivity [EMAIL PROTECTED]
---
include/asm-x86/desc_64.h |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
delete mode 100644 include/asm-x86/desc_64.h
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
Mark,
What kernel level is needed to support the new -N arg?
Tried it on a Suse 2.6.22 kernel (possibly not patched with all the
current security updates).
Failed with:
The Running Kernel Lack CONFIG_IDE_TASK_IOCTL Support.
Thanks
Greg
On Mon, Feb 18, 2008 at 7:25 PM, Mark Lord [EMAIL
On Wed, Feb 20, 2008 at 08:41:55AM -0600, Robin Holt wrote:
On Wed, Feb 20, 2008 at 11:39:42AM +0100, Andrea Arcangeli wrote:
XPMEM simply can't use RCU for the registration locking if it wants to
schedule inside the mmu notifier calls. So I guess it's better to add
Whoa there. In
* Avi Kivity [EMAIL PROTECTED] wrote:
Remove the final line in asm-x86/desc_64.h
thanks, applied :-)
Ingo
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at
Allow PF_MEMALLOC to be set in softirq context. When running softirqs from
a borrowed context save current-flags, ksoftirqd will have its own
task_struct.
This is needed to allow network softirq packet processing to make use of
PF_MEMALLOC.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
With the introduction of the shared dirty page accounting in .19, NFS should
not be able to surpise the VM with all dirty pages. Thus it should always be
able to free some memory. Hence no more need for mempools.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
fs/nfs/read.c | 15
There is a small race between the procfs caller and the memory hotplug caller
of setup_per_zone_pages_min(). Not a big deal, but the next patch will add yet
another caller. Time to close the gap.
Signed-off-by: Peter Zijlstra [EMAIL PROTECTED]
---
mm/page_alloc.c | 16 +---
1 file
Stephen Rothwell wrote:
On Thu, 14 Feb 2008 10:01:14 -0800 (PST) Linus Torvalds [EMAIL PROTECTED]
wrote:
I absolutely have no problem with having a this is the infrastrcture
changes that will go into the next release. In fact, I can even
*maintain* such a branch.
I've not wanted to
Matt Domsch wrote:
On Thu, Feb 14, 2008 at 12:30:51PM -0600, Corey Minyard wrote:
From: Konstantin Baydarov [EMAIL PROTECTED]
Atomics are a lot more efficient and neat than using a lock.
per_cpu variables are a lot more efficient and neat than using locks
for simple statistics. no
Paul Mackerras schrieb:
Andrew Morton writes:
Bizarrely, the original author of the patch (Anton) has fallen off the cc.
Could whoever did that please thwap himself?
Anyway, my head is now officially spinning. Did anyone actually have a
reason why we shouldn't proceed with Anton's patch?
Dhaval Giani wrote:
sched-devel as of yesterday. (I don't think anything new has gone in
today).
I just sent Ingo my fixes a few minutes ago. You may want to keep an I
out on updates to sched-devel.
[sorry, not had enough time to get to the bottom of this the last few
days]
No prob.
On Wed, Feb 20, 2008 at 04:38:52PM +0100, Stefan Richter wrote:
Two things may largely eliminate the need for parallel branches.
1. Do infrastructure changes and whole tree wide refactoring etc. in a
compatible manner with a brief but nonzero transition period.
2. Insert a second merge
* Steven Rostedt [EMAIL PROTECTED] wrote:
sched-devel as of yesterday. (I don't think anything new has gone in
today).
I just sent Ingo my fixes a few minutes ago. You may want to keep an I
out on updates to sched-devel.
it's now all up in sched-devel.git.
Ingo
--
To unsubscribe
On Feb 20 2008 20:50, Balbir Singh wrote:
John Stoffel wrote:
I know this is a pedantic comment, but why the heck is it called such
a generic term as Memory Controller which doesn't give any
indication of what it does.
Shouldn't it be something like Memory Quota Controller, or Memory
On Tue, 19 Feb 2008, Andrew Buehler wrote:
With those two problems out of the way, what is left is the hard-drive
issue, and that is also halfway fixed by enabling ACPI. Specifically, it
is fixed in that the kernel sees the hard drive and I can mount it,
but it is not fixed in that the
A spi transfer with zero length is not invalid. Such transfer can be
used to achieve delay before first CLK edge after chipselect assertion.
Signed-off-by: Atsushi Nemoto [EMAIL PROTECTED]
---
diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index 293b7ca..5dff5e0 100644
---
On Tue, Feb 19, 2008 at 08:21:53PM +0100, Sam Ravnborg wrote:
Hi Anath.
Hi Sam,
Linus did not pull this in the -rc1 to -rc2 timeframe
so please resubmit the patch serie one week into the
next merge window (when most of the trees has hit linus' tree
and Andrew has made his first merge).
On Thu, 2008-02-21 at 02:20 +1100, Stephen Rothwell wrote:
Hi James,
On Wed, 20 Feb 2008 08:59:20 -0600 James Bottomley [EMAIL PROTECTED] wrote:
Is the merge log available anywhere yet?
Are you looking for more that what is in Next/merge.log in the tree?
Yes, that's it, thanks!
James
Eric Dumazet wrote:
On Wed, 20 Feb 2008 13:07:47 +0100
Ingo Molnar [EMAIL PROTECTED] wrote:
* Mike Travis [EMAIL PROTECTED] wrote:
* Declare the pda as a per cpu variable. This will move the pda area
to an address accessible by the x86_64 per cpu macros.
Subtraction of
These patches add local caching for network filesystems such as NFS.
The patches can roughly be broken down into a number of sets:
(*) 01-keys-inc-payload.diff
(*) 02-keys-search-keyring.diff
(*) 03-keys-callout-blob.diff
Three patches to the keyring code made to help the CIFS
Allow the callout data to be passed as a blob rather than a string for internal
kernel services that call any request_key_*() interface other than
request_key(). request_key() itself still takes a NUL-terminated string.
The functions that change are:
request_key_with_auxdata()
Make NFSD work with detached security, using the patches that excise the
security information from task_struct to struct task_security as a base.
Each time NFSD wants a new security descriptor (to do NFS4 recovery or just to
do NFS operations), a task_security record is derived from NFSD's
Provide an add_wait_queue_tail() function to add a waiter to the back of a
wait queue instead of the front.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
include/linux/pagemap.h |7 +--
include/linux/wait.h|1 +
kernel/wait.c | 18 ++
Change current-fs[ug]id to current_fs[ug]id() so that fsgid and fsuid can be
separated from the task_struct.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
arch/ia64/kernel/perfmon.c|4 ++--
arch/powerpc/platforms/cell/spufs/inode.c |4 ++--
Allow kernel services to override LSM settings appropriate to the actions
performed by a task by duplicating a security record, modifying it and then
using task_struct::act_as to point to it when performing operations on behalf
of a task.
This is used, for example, by CacheFiles which has to
Check the starting keyring as part of the search to (a) see if that is what
we're searching for, and (b) to check it is still valid for searching.
The scenario: User in process A does things that cause things to be
created in its process session keyring. The user then does an su to
another user
Permit local filesystem caching to be enabled for NFS in the kernel
configuration.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/Kconfig |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/fs/Kconfig b/fs/Kconfig
index c42ec50..fa8e978 100644
---
Add a 'kernel_service' object class to SELinux and give this object class two
access vectors: 'use_as_override' and 'create_files_as'.
The first vector is used to grant a process the right to nominate an alternate
process security ID for the kernel to use as an override for the SELinux
subjective
The attached patch causes read_cache_pages() to release page-private data on a
page for which add_to_page_cache() fails or the filler function fails. This
permits pages with caching references associated with them to be cleaned up.
The invalidatepage() address space op is called (indirectly) to
Increase the size of a payload that can be used to instantiate a key in
add_key() and keyctl_instantiate_key(). This permits huge CIFS SPNEGO blobs to
be passed around. The limit is raised to 1MB. If kmalloc() can't allocate a
buffer of sufficient size, vmalloc() will be tried instead.
Bind data storage objects in the local cache to NFS inodes.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/fscache.c | 131
fs/nfs/fscache.h | 19 +++
fs/nfs/inode.c | 39 --
Add a keyctl() function to get the security label of a key.
The following is added to Documentation/keys.txt:
(*) Get the LSM security context attached to a key.
long keyctl(KEYCTL_GET_SECURITY, key_serial_t key, char *buffer,
size_t buflen)
This function
Define and create superblock-level cache index objects (as managed by
nfs_server structs).
Each superblock object is created in a server level index object and is itself
an index into which inode-level objects are inserted.
Ideally there would be one superblock-level object per server, and the
Add FS-Cache option bit to nfs_server struct. This is set to indicate local
on-disk caching is enabled for a particular superblock.
Also add debug bit for local caching operations.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
include/linux/nfs_fs.h|1 +
include/linux/nfs_fs_sb.h
Change all the usages of file-f_mapping in ext3_*write_end() functions to use
the mapping argument directly. This has two consequences:
(*) Consistency. Without this patch sometimes one is used and sometimes the
other is.
(*) A NULL file pointer can be passed. This feature is then made
Recruit a couple of page flags to aid in cache management. The following extra
flags are defined:
(1) PG_fscache (PG_private_2)
The marked page is backed by a local cache and is pinning resources in the
cache driver.
(2) PG_fscache_write (PG_owner_priv_2)
The marked page is
Invalidate the FsCache page flags on the pages belonging to an inode when the
cache backing that NFS inode is removed.
This allows a live cache to be withdrawn.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/fscache-index.c | 40
1 files
On Tue, 19 Feb 2008, David Brownell wrote:
Please try that diagnostic patch I sent ... with CONFIG_USB_DEBUG.
Near as I can tell this is caused by some hardware oddity that needs
to be worked around. We seem to be at stage where we've fixed some
problems, nudging code paths around so
Define and create server-level cache index objects (as managed by nfs_client
structs).
Each server object is created in the NFS top-level index object and is itself
an index into which superblock-level objects are inserted.
Ideally there would be one superblock-level object per server, and the
nfs_readpage_async() needs to be non-static so that it can be used as a
fallback for the local on-disk caching should an EIO crop up when reading the
cache.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/read.c |4 ++--
include/linux/nfs_fs.h |2 ++
2 files changed,
Display the local caching state in /proc/fs/nfsfs/volumes.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/client.c |7 ---
fs/nfs/fscache.h | 15 +++
2 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index
Read pages from an FS-Cache data storage object representing an inode into an
NFS inode.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/fscache.c | 112 ++
fs/nfs/fscache.h | 47 +++
fs/nfs/read.c| 18
Add a function to install a monitor on the page lock waitqueue for a particular
page, thus allowing the page being unlocked to be detected.
This is used by CacheFiles to detect read completion on a page in the backing
filesystem so that it can then copy the data to the waiting netfs page.
Store pages from an NFS inode into the cache data storage object associated
with that inode.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/fscache.c | 26 ++
fs/nfs/fscache.h | 16
fs/nfs/read.c|5 +
3 files changed, 47
Add an address space operation to write one single page of data to an inode at
a page-aligned location (thus permitting the implementation to be highly
optimised). The data source is a single page.
This is used by CacheFiles to store the contents of netfs pages into their
backing file pages.
FS-Cache page management for NFS. This includes hooking the releasing and
invalidation of pages marked with PG_fscache (aka PG_private_2) and waiting for
completion of the write-to-cache flag (PG_fscache_write aka PG_owner_priv_2).
Signed-off-by: David Howells [EMAIL PROTECTED]
---
Jan == Jan Engelhardt [EMAIL PROTECTED] writes:
Jan On Feb 20 2008 20:50, Balbir Singh wrote:
John Stoffel wrote:
I know this is a pedantic comment, but why the heck is it called such
a generic term as Memory Controller which doesn't give any
indication of what it does.
Shouldn't it be
Add some new NFS I/O event counters for FS-Cache events. They have to be
added as byte counters because I may need to be able to increase the numbers
by more than 1 at a time.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
fs/nfs/iostat.h |7 +++
1 files changed, 7 insertions(+), 0
Add read context retention so that FS-Cache can call back into NFS when a read
operation on the cache fails EIO rather than reading data. This permits NFS to
then fetch the data from the server instead using the appropriate security
context.
Signed-off-by: David Howells [EMAIL PROTECTED]
---
Is the functionality provided by drivers/char/gen_rtc.c completely
handled by the rtc subsystem in drivers/rtc?
I ask for two reasons:
1. should we make it mutually exclusive in Kconfig
2. I've enabled both and get (we'll my defconfig did):
proc_dir_entry 'rtc' already registered
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