.
(and how
many cpu cycles at max are needed to enter the ISR) ?
It's difficult to answer to this question because the performance
depends on your system. From my last statistics I saw that with an rt
linux kernel you can stay below 50us for the interrupt latency.
Marco
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To unsubscribe from
Il 02/08/2013 17:24, Michael Schnell ha scritto:
On 08/02/2013 04:53 PM, Marco Stornelli wrote:
- how to assign an interrupt (e.g. a dedicated timer) to the
subsystem ?
Interrupt handler are kernel thread, so you can schedule your kernel
thread on your normal cpu.
Sorry. I don't
Il 02/08/2013 18:00, Michael Schnell ha scritto:
On 08/02/2013 05:37 PM, Marco Stornelli wrote:
I don't know your hw so my consideration are really general.
The hardware is not decided yet (it will be some A9 thingy). So for me
really general is just fine.
ISRs in rt kernel doesn't exist
variable of uboot, so reading from Linux is very simple. You should
use a dedicated little space of flash to store the env variables.
Regards,
Marco
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that this existed, because it's disabled by
default in the config for Marvell boards.
I'll have to look at that example program futher...
Brad
(Please no top-posting). Of course, if you have got a separate flash
partition for the uboot env, you can map it read-only in linux, it's safer.
Marco
Il 13/04/2011 16:53, Constantine Shulyupin ha scritto:
Thank you Marco for your feedback. I've added summary of used
optimization method:
• Reduction of kernel and filesystem size
• Kernel features: naked boot, initrd without compression
• Optimization of NAND flash interface in boot loader
this kind of email to this
mailing list. In the second one, could you explain to us your fast
boot solution or your kernel modifications? I can't find any
implementation details on the web site.
Marco
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From: Marco Stornelli marco.storne...@gmail.com
XIP doesn't depend on block symbol, then we can reorder the Kconfig.
For ext2 doesn't change the Kconfig behavior but if other fs will use
FS_XIP it won't need to include block support if not needed.
Signed-off-by: Marco Stornelli marco.storne
2011/2/6 Randy Dunlap rdun...@xenotime.net:
On Sun, 06 Feb 2011 16:15:00 +0100 Marco Stornelli wrote:
From: Marco Stornelli marco.storne...@gmail.com
XIP doesn't depend on block symbol, then we can reorder the Kconfig.
For ext2 doesn't change the Kconfig behavior but if other fs will use
2011/1/10 Pavel Machek pa...@ucw.cz:
On 07/01/2011 22:59, Tony Luck wrote:
On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
marco.storne...@gmail.com wrote:
constraint). About the errors: pramfs does not maintain file data in the
page caches for normal file I/O, so no writeback, the read
Il 10/01/2011 18:35, Luck, Tony ha scritto:
You'd be better running ext2 over special block device,
it is quite simple.
Marco,
You might want to spend some more time answering this question
(it is a particularly good one). What are the reasons to use
pramfs, rather than a ext2 over
On 07/01/2011 22:59, Tony Luck wrote:
On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
marco.storne...@gmail.com wrote:
constraint). About the errors: pramfs does not maintain file data in the
page caches for normal file I/O, so no writeback, the read/write
operation are done with direct io
Il 07/01/2011 19:42, Tony Luck ha scritto:
On Thu, Jan 6, 2011 at 4:01 AM, Marco Stornelli
marco.storne...@gmail.com wrote:
+accessed data that must survive system reboots and power cycles. An
+example usage might be system logs under /var/log, or a user address
+book in a cell phone or PDA
| 28 +
include/linux/magic.h|1 +
include/linux/pram_fs.h | 130
include/linux/pram_fs_sb.h | 45 ++
34 files changed, 6299 insertions(+), 3 deletions(-)
Marco
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From: Marco Stornelli marco.storne...@gmail.com
Documentation for PRAMFS.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/Documentation/filesystems/pramfs.txt
b/Documentation/filesystems/pramfs.txt
new file mode 100644
index 000..2ad536f
--- /dev/null
+++ b
From: Marco Stornelli marco.storne...@gmail.com
Super block operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/super.c b/fs/pramfs/super.c
new file mode 100644
index 000..0157b35
--- /dev/null
+++ b/fs/pramfs/super.c
@@ -0,0 +1,940
From: Marco Stornelli marco.storne...@gmail.com
Inode methods (allocate/free/read/write).
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/inode.c b/fs/pramfs/inode.c
new file mode 100644
index 000..e5ee072
--- /dev/null
+++ b/fs/pramfs/inode.c
@@ -0,0
From: Marco Stornelli marco.storne...@gmail.com
File operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/file.c b/fs/pramfs/file.c
new file mode 100644
index 000..05a4af4
--- /dev/null
+++ b/fs/pramfs/file.c
@@ -0,0 +1,326 @@
+/*
+ * BRIEF
From: Marco Stornelli marco.storne...@gmail.com
Inode operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/namei.c b/fs/pramfs/namei.c
new file mode 100644
index 000..bedc43a
--- /dev/null
+++ b/fs/pramfs/namei.c
@@ -0,0 +1,371
From: Marco Stornelli marco.storne...@gmail.com
Definitions for the PRAMFS filesystem.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/pram.h b/fs/pramfs/pram.h
new file mode 100644
index 000..85169c4
--- /dev/null
+++ b/fs/pramfs/pram.h
@@ -0,0 +1,269
From: Marco Stornelli marco.storne...@gmail.com
File operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/dir.c b/fs/pramfs/dir.c
new file mode 100644
index 000..cf0bcba
--- /dev/null
+++ b/fs/pramfs/dir.c
@@ -0,0 +1,208
From: Marco Stornelli marco.storne...@gmail.com
ACL operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/acl.c b/fs/pramfs/acl.c
new file mode 100644
index 000..53090a5
--- /dev/null
+++ b/fs/pramfs/acl.c
@@ -0,0 +1,433 @@
+/*
+ * BRIEF DESCRIPTION
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/xattr.c b/fs/pramfs/xattr.c
new file mode 100644
index 000..44d158e
--- /dev/null
+++ b/fs/pramfs/xattr.c
@@ -0,0 +1,1104
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes block descriptors tree.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/desctree.c b/fs/pramfs/desctree.c
new file mode 100644
index 000..4508e70
--- /dev/null
+++ b/fs/pramfs/desctree.c
From: Marco Stornelli marco.storne...@gmail.com
Memory write protection.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/wprotect.c b/fs/pramfs/wprotect.c
new file mode 100644
index 000..d0f0508
--- /dev/null
+++ b/fs/pramfs/wprotect.c
@@ -0,0 +1,41
From: Marco Stornelli marco.storne...@gmail.com
Test module.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff --git a/fs/pramfs/pramfs_test.c b/fs/pramfs/pramfs_test.c
new file mode 100644
index 000..24e016f
--- /dev/null
+++ b/fs/pramfs/pramfs_test.c
@@ -0,0 +1,47
Il 06/01/2011 15:03, Peter Zijlstra ha scritto:
On Thu, 2011-01-06 at 13:00 +0100, Marco Stornelli wrote:
Hi all,
after several reviews is time to submit the code for mainline. Thanks to
CELF to believe and support actively the project and thanks to Tim Bird.
Tony Luck was also playing
is indeed supported
by U-Boot, you can see CONFIG_PRAM in the Das U-Boot manual. x86 in this
case can be a strange world for this fs, but however if the user wants
it can be used without problems because there aren't neither strict arch
or hw dependency.
Marco
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with the suggestions of
Andi Kleen
v1:
- first draft
Marco
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More majordomo info at http://vger.kernel.org/majordomo-info.html
From: Marco Stornelli marco.storne...@gmail.com
Inode methods (allocate/free/read/write).
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/inode.c linux-2.6.36/fs/pramfs/inode.c
--- linux-2.6.36-orig/fs/pramfs/inode.c 1970-01-01 01:00
From: Marco Stornelli marco.storne...@gmail.com
Block allocation operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/balloc.c linux-2.6.36/fs/pramfs/balloc.c
--- linux-2.6.36-orig/fs/pramfs/balloc.c1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xattr.c linux-2.6.36/fs/pramfs/xattr.c
--- linux-2.6.36-orig/fs/pramfs/xattr.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
Makefile and Kconfig.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/Makefile linux-2.6.36/fs/Makefile
--- linux-2.6.36-orig/fs/Makefile 2010-09-13 01:07:37.0 +0200
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
Memory write protection.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/wprotect.c
linux-2.6.36/fs/pramfs/wprotect.c
--- linux-2.6.36-orig/fs/pramfs/wprotect.c 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes block descriptors tree.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/desctree.c
linux-2.6.36/fs/pramfs/desctree.c
--- linux-2.6.36-orig/fs/pramfs/desctree.c 1970-01-01
From: Marco Stornelli marco.storne...@gmail.com
Inode operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/namei.c linux-2.6.36/fs/pramfs/namei.c
--- linux-2.6.36-orig/fs/pramfs/namei.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
ACL operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/acl.c linux-2.6.36/fs/pramfs/acl.c
--- linux-2.6.36-orig/fs/pramfs/acl.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36/fs
2010/11/24 Paul Mundt let...@linux-sh.org:
On Wed, Nov 24, 2010 at 09:11:13AM +0100, Marco Stornelli wrote:
2010/11/24 Paul Mundt let...@linux-sh.org:
most of this from ext2, I'm curious why you opted to hardcode this
instead of maintaining the flexibility that ext2 XIP has over
2010/11/24 Paul Mundt let...@linux-sh.org:
On Sat, Nov 20, 2010 at 10:58:40AM +0100, Marco Stornelli wrote:
diff -Nurp linux-2.6.36-orig/fs/pramfs/file.c linux-2.6.36/fs/pramfs/file.c
--- linux-2.6.36-orig/fs/pramfs/file.c 1970-01-01 01:00:00.0
+0100
+++ linux-2.6.36/fs/pramfs
From: Marco Stornelli marco.storne...@gmail.com
Documentation for PRAMFS.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/Documentation/filesystems/pramfs.txt
linux-2.6.36/Documentation/filesystems/pramfs.txt
--- linux-2.6.36-orig/Documentation
From: Marco Stornelli marco.storne...@gmail.com
Inode methods (allocate/free/read/write).
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/inode.c linux-2.6.36/fs/pramfs/inode.c
--- linux-2.6.36-orig/fs/pramfs/inode.c 1970-01-01 01:00
From: Marco Stornelli marco.storne...@gmail.com
File operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/file.c linux-2.6.36/fs/pramfs/file.c
--- linux-2.6.36-orig/fs/pramfs/file.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36
From: Marco Stornelli marco.storne...@gmail.com
Block allocation operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/balloc.c linux-2.6.36/fs/pramfs/balloc.c
--- linux-2.6.36-orig/fs/pramfs/balloc.c1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Inode operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/namei.c linux-2.6.36/fs/pramfs/namei.c
--- linux-2.6.36-orig/fs/pramfs/namei.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
Symlink operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/symlink.c
linux-2.6.36/fs/pramfs/symlink.c
--- linux-2.6.36-orig/fs/pramfs/symlink.c 1970-01-01 01:00:00.0
+0100
From: Marco Stornelli marco.storne...@gmail.com
Definitions for the PRAMFS filesystem.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pram.h linux-2.6.36/fs/pramfs/pram.h
--- linux-2.6.36-orig/fs/pramfs/pram.h 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
File operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/dir.c linux-2.6.36/fs/pramfs/dir.c
--- linux-2.6.36-orig/fs/pramfs/dir.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
XIP operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xip.c linux-2.6.36/fs/pramfs/xip.c
--- linux-2.6.36-orig/fs/pramfs/xip.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
ACL operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/acl.c linux-2.6.36/fs/pramfs/acl.c
--- linux-2.6.36-orig/fs/pramfs/acl.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes block descriptors tree.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/desctree.c
linux-2.6.36/fs/pramfs/desctree.c
--- linux-2.6.36-orig/fs/pramfs/desctree.c 1970-01-01
From: Marco Stornelli marco.storne...@gmail.com
Memory write protection.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/wprotect.c
linux-2.6.36/fs/pramfs/wprotect.c
--- linux-2.6.36-orig/fs/pramfs/wprotect.c 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Test module.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pramfs_test.c
linux-2.6.36/fs/pramfs/pramfs_test.c
--- linux-2.6.36-orig/fs/pramfs/pramfs_test.c 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Makefile and Kconfig.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/Makefile linux-2.6.36/fs/Makefile
--- linux-2.6.36-orig/fs/Makefile 2010-09-13 01:07:37.0 +0200
+++ linux-2.6.36/fs
2010/11/15 yidong zhang zhang...@gmail.com:
hi Marco
+ retval = 0;
+ out:
+ if (retval sbi-virt_addr) {
+ iounmap(sbi-virt_addr);
+ release_mem_region(sbi-phys_addr, initsize);
+ kfree(sbi);
+ }
+
+ return retval
some comment style issue
v2:
- fix documentation errors reported by Randy Dunlap and Kieran Bingham
- reworked memory write protection functions with the suggestions of
Andi Kleen
v1:
- first draft
Marco
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From: Marco Stornelli marco.storne...@gmail.com
Documentation for PRAMFS.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/Documentation/filesystems/pramfs.txt
linux-2.6.36/Documentation/filesystems/pramfs.txt
--- linux-2.6.36-orig/Documentation
From: Marco Stornelli marco.storne...@gmail.com
Inode methods (allocate/free/read/write).
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/inode.c linux-2.6.36/fs/pramfs/inode.c
--- linux-2.6.36-orig/fs/pramfs/inode.c 1970-01-01 01:00
From: Marco Stornelli marco.storne...@gmail.com
File operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/file.c linux-2.6.36/fs/pramfs/file.c
--- linux-2.6.36-orig/fs/pramfs/file.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36
From: Marco Stornelli marco.storne...@gmail.com
Symlink operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/symlink.c
linux-2.6.36/fs/pramfs/symlink.c
--- linux-2.6.36-orig/fs/pramfs/symlink.c 1970-01-01 01:00:00.0
+0100
From: Marco Stornelli marco.storne...@gmail.com
Definitions for the PRAMFS filesystem.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pram.h linux-2.6.36/fs/pramfs/pram.h
--- linux-2.6.36-orig/fs/pramfs/pram.h 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
File operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/dir.c linux-2.6.36/fs/pramfs/dir.c
--- linux-2.6.36-orig/fs/pramfs/dir.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
XIP operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xip.c linux-2.6.36/fs/pramfs/xip.c
--- linux-2.6.36-orig/fs/pramfs/xip.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xattr.c linux-2.6.36/fs/pramfs/xattr.c
--- linux-2.6.36-orig/fs/pramfs/xattr.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes block descriptors tree.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/desctree.c
linux-2.6.36/fs/pramfs/desctree.c
--- linux-2.6.36-orig/fs/pramfs/desctree.c 1970-01-01
From: Marco Stornelli marco.storne...@gmail.com
Memory write protection.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/wprotect.c
linux-2.6.36/fs/pramfs/wprotect.c
--- linux-2.6.36-orig/fs/pramfs/wprotect.c 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Makefile and Kconfig.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/Makefile linux-2.6.36/fs/Makefile
--- linux-2.6.36-orig/fs/Makefile 2010-09-13 01:07:37.0 +0200
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
Test module.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pramfs_test.c
linux-2.6.36/fs/pramfs/pramfs_test.c
--- linux-2.6.36-orig/fs/pramfs/pramfs_test.c 1970-01-01 01:00:00.0
2010/11/8 Ryan Mallon r...@bluewatersys.com:
On 11/08/2010 08:49 PM, Marco Stornelli wrote:
2010/11/7 Ryan Mallon r...@bluewatersys.com:
On 11/06/2010 09:58 PM, Marco Stornelli wrote:
From: Marco Stornelli marco.storne...@gmail.com
Definitions for the PRAMFS filesystem.
Signed-off
2010/11/7 Ryan Mallon r...@bluewatersys.com:
On 11/06/2010 09:58 PM, Marco Stornelli wrote:
From: Marco Stornelli marco.storne...@gmail.com
Definitions for the PRAMFS filesystem.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pram.h
Hi all,
I send the patch series again. I fix documentation problems reported by
Randy Dunlap and Kieran Bingham. I reworked the memory protection
functions according to the suggestions of Andi Kleen.
I ask to Andrew to evaluate to insert this fs in mainline.
Marco
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To unsubscribe from
From: Marco Stornelli marco.storne...@gmail.com
Documentation for PRAMFS.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/Documentation/filesystems/pramfs.txt
linux-2.6.36/Documentation/filesystems/pramfs.txt
--- linux-2.6.36-orig/Documentation
From: Marco Stornelli marco.storne...@gmail.com
Super block operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/super.c linux-2.6.36/fs/pramfs/super.c
--- linux-2.6.36-orig/fs/pramfs/super.c 1970-01-01 01:00:00.0 +0100
+++ linux
From: Marco Stornelli marco.storne...@gmail.com
Inode methods (allocate/free/read/write).
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/inode.c linux-2.6.36/fs/pramfs/inode.c
--- linux-2.6.36-orig/fs/pramfs/inode.c 1970-01-01 01:00
From: Marco Stornelli marco.storne...@gmail.com
File operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/file.c linux-2.6.36/fs/pramfs/file.c
--- linux-2.6.36-orig/fs/pramfs/file.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36
From: Marco Stornelli marco.storne...@gmail.com
Block allocation operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/balloc.c linux-2.6.36/fs/pramfs/balloc.c
--- linux-2.6.36-orig/fs/pramfs/balloc.c1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Symlink operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/symlink.c
linux-2.6.36/fs/pramfs/symlink.c
--- linux-2.6.36-orig/fs/pramfs/symlink.c 1970-01-01 01:00:00.0
+0100
From: Marco Stornelli marco.storne...@gmail.com
Definitions for the PRAMFS filesystem.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pram.h linux-2.6.36/fs/pramfs/pram.h
--- linux-2.6.36-orig/fs/pramfs/pram.h 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
File operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/dir.c linux-2.6.36/fs/pramfs/dir.c
--- linux-2.6.36-orig/fs/pramfs/dir.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
XIP operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xip.c linux-2.6.36/fs/pramfs/xip.c
--- linux-2.6.36-orig/fs/pramfs/xip.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
ACL operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/acl.c linux-2.6.36/fs/pramfs/acl.c
--- linux-2.6.36-orig/fs/pramfs/acl.c 1970-01-01 01:00:00.0 +0100
+++ linux-2.6.36/fs
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xattr.c linux-2.6.36/fs/pramfs/xattr.c
--- linux-2.6.36-orig/fs/pramfs/xattr.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes block descriptors tree.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/desctree.c
linux-2.6.36/fs/pramfs/desctree.c
--- linux-2.6.36-orig/fs/pramfs/desctree.c 1970-01-01
From: Marco Stornelli marco.storne...@gmail.com
Test module.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/pramfs_test.c
linux-2.6.36/fs/pramfs/pramfs_test.c
--- linux-2.6.36-orig/fs/pramfs/pramfs_test.c 1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Makefile and Kconfig.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/Makefile linux-2.6.36/fs/Makefile
--- linux-2.6.36-orig/fs/Makefile 2010-09-13 01:07:37.0 +0200
+++ linux-2.6.36/fs
Il 06/11/2010 11:39, James Hogan ha scritto:
Hi,
On Sat, Nov 06, 2010 at 09:56:18AM +0100, Marco Stornelli wrote:
From: Marco Stornelli marco.storne...@gmail.com
+PRAMFS is write protected. The page table entries that map the backing-store
+RAM are normally marked read-only. Write
Il 06/11/2010 12:16, James Hogan ha scritto:
Hi Marco,
On Sat, Nov 06, 2010 at 09:56:39AM +0100, Marco Stornelli wrote:
From: Marco Stornelli marco.storne...@gmail.com
+static void pram_set_blocksize(struct super_block *sb, unsigned long size)
+{
+int bits;
+
+/*
+* We've
Il 06/11/2010 14:33, James Hogan ha scritto:
Hi,
On Sat, Nov 06, 2010 at 09:59:27AM +0100, Marco Stornelli wrote:
diff -Nurp linux-2.6.36-orig/fs/pramfs/xip.c linux-2.6.36/fs/pramfs/xip.c
--- linux-2.6.36-orig/fs/pramfs/xip.c1970-01-01 01:00:00.0
+0100
+++ linux-2.6.36/fs
2010/10/12 Andi Kleen a...@firstfloor.org:
On Mon, Oct 11, 2010 at 07:32:10PM +0200, Marco Stornelli wrote:
Il 10/10/2010 18:46, Andi Kleen ha scritto:
This won't work at all on x86 because you don't handle large
pages.
And it doesn't work on x86-64 because the first 2GB are double
2010/10/10 Andi Kleen a...@firstfloor.org:
Marco Stornelli marco.storne...@gmail.com writes:
+
+ do {
+ pgd = pgd_offset(init_mm, address);
+ if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
+ goto out;
+
+ pud = pud_offset(pgd
2010/10/10 Randy Dunlap rdun...@xenotime.net:
On Sun, 10 Oct 2010 18:37:49 +0200 Marco Stornelli wrote:
Above 2 lines need to indented more.
Ack.
+ return 1;
+ }
+
+ /*
+ * Attempt an unprotected clear of checksum information in the
+ * superblock
2010/10/10 Randy Dunlap rdun...@xenotime.net:
On Sun, 10 Oct 2010 18:39:11 +0200 Marco Stornelli wrote:
From: Marco Stornelli marco.storne...@gmail.com
Makefile and Kconfig.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/Kconfig
Il 11/10/2010 14:26, Kieran Bingham ha scritto:
On 10/10/2010 17:33, Marco Stornelli wrote:
From: Marco Stornellimarco.storne...@gmail.com
ACL operations.
Signed-off-by: Marco Stornellimarco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/acl.c linux-2.6.36/fs/pramfs/acl.c
user PTEs.
-Andi
It's a way to have more protection against kernel bug, for a
in-memory fs can be important. However this option can be
enabled/disabled at fs level.
Marco
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the body of a message to majord
.
In addition, in the web site tech page (http:\\pramfs.sourceforge.net),
you can find a lot of information about implementation, technical
details, benchmarking and so on.
All the work to mainline this feature is sponsored by the CE Linux Forum.
Regards,
Marco
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To unsubscribe from this list: send
From: Marco Stornelli marco.storne...@gmail.com
Super block operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/super.c linux-2.6.36/fs/pramfs/super.c
--- linux-2.6.36-orig/fs/pramfs/super.c 1970-01-01 01:00:00.0 +0100
+++ linux
From: Marco Stornelli marco.storne...@gmail.com
Inode operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/namei.c linux-2.6.36/fs/pramfs/namei.c
--- linux-2.6.36-orig/fs/pramfs/namei.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
Block allocation operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/balloc.c linux-2.6.36/fs/pramfs/balloc.c
--- linux-2.6.36-orig/fs/pramfs/balloc.c1970-01-01 01:00:00.0
From: Marco Stornelli marco.storne...@gmail.com
Symlink operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/symlink.c
linux-2.6.36/fs/pramfs/symlink.c
--- linux-2.6.36-orig/fs/pramfs/symlink.c 1970-01-01 01:00:00.0
+0100
From: Marco Stornelli marco.storne...@gmail.com
File operations for directories.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/dir.c linux-2.6.36/fs/pramfs/dir.c
--- linux-2.6.36-orig/fs/pramfs/dir.c 1970-01-01 01:00:00.0 +0100
From: Marco Stornelli marco.storne...@gmail.com
Extended attributes operations.
Signed-off-by: Marco Stornelli marco.storne...@gmail.com
---
diff -Nurp linux-2.6.36-orig/fs/pramfs/xattr.c linux-2.6.36/fs/pramfs/xattr.c
--- linux-2.6.36-orig/fs/pramfs/xattr.c 1970-01-01 01:00:00.0 +0100
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