17 Oct, 2007
40 commits
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Fix kernel-doc for sys_remap_file_pages() and add info to the 'prot' NOTE.
Rename __prot parameter to prot.Signed-off-by: Randy Dunlap
Acked-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch does the following cleanups for Documentation/vm/slabinfo.c:
- Fix two memory leaks;
- Constify some char pointers;
- Use snprintf instead of sprintf in case of buffer overflow;
- Fix some indentations;
- Other little improvements.Acked-by: Christoph Lameter
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
min_free_pages is critical for correctness, document it as such.
Signed-off-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This cleans up kdump documentation a bit. Plus I do not think we want
to mention Linux trademark in _every_ file in documentation....Signed-off-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A couple of updates haven't considered whether the documentation makes
sense as a whole any more. Three changes here:- Remove the reference to the "DAC Addressing for Address Space Hungry
Devices" section which was deleted by Jan Beulich.
- Remove the comment about DMA_24BIT_MASK which became obsolete when
Tobias Klauser changed the code to actually use DMA_24BIT_MASK.
- Remove the section "64-bit DMA and DAC cycle support" since it's
fully covered above, and contains a reference to the section deleted
by Jan.Signed-off-by: Matthew Wilcox
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add Documentation/power/00-INDEX
Signed-off-by: Rob Landley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add two missing entries to Documentation/powerpc/00-INDEX
Signed-off-by: Rob Landley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Two 00-INDEX files under Documentation/w1
Signed-off-by: Rob Landley
Acked-by: Evgeniy Polyakov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add missing entries to Documentation/00-INDEX
Signed-off-by: Rob Landley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The existing Documentation/SM501.txt gives no clue what the chip is or does,
so copy the description from Kconfig help text.Acked-by: Ben Dooks
Signed-off-by: Rob Landley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds the "reset_devices" option (that's used only by one device
driver for now) to the recommended list of command line parameters for kdump.Meaning (Documentation/kernel-parameters.txt):
reset_devices [KNL] Force drivers to reset the underlying device
during initialization.Signed-off-by: Bernhard Walle
Cc: "Randy.Dunlap"
Cc: Vivek Goyal
Cc: "Eric W. Biederman"
Cc: Haren Myneni
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch reflects the
http://git.kernel.org/?p=linux/kernel/git/horms/kexec-tools-testing.git;a=commit;h=b9c3648e690ad0dad12389659673206213a09760
change in kexec-tools-testing also now in the kernel documentation.Signed-off-by: Bernhard Walle
Cc: "Randy.Dunlap"
Cc: Vivek Goyal
Cc: "Eric W. Biederman"
Cc: Haren Myneni
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix typos in CONFIG_RELOCATABLE. Use tab + 2 spaces for indentation on all
lines.Signed-off-by: Randy Dunlap
Cc: Bernhard Walle
Cc: Vivek Goyal
Cc: "Eric W. Biederman"
Cc: Haren Myneni
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adapts the Documentation/kdump/kdump.txt file to express the fact
that the x86_64 kernel is now also relocatable. This makes i386 and x86_64
now behave the same, simplifying the documentation.Signed-off-by: Bernhard Walle
Cc: "Randy.Dunlap"
Cc: Vivek Goyal
Cc: "Eric W. Biederman"
Cc: Haren Myneni
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Robert P. J. Day
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Johannes Berg reports (Thanks!) that &struct names are not highlighted in
html output format when they are inside a DOC: block.DOC: blocks were not escaped thru xml_escape() like other kernel-doc
comments were. Fixed that.However, that left a problem with
($blankline_html) being processed
thru xml_escape(), converting it to <p>, which isn't good for the
generated html output (theshould remain unchanged), so this patch also
introduces the notion of "local" kernel-doc meta-characters
('\\\\mnemonic:'), which are converted to html just before writing the
stream to its output file.Please report any problems that you (anyone) see in "highlighting" in any
output mode (text, man, html, xml).Also update copyright to include me.
Signed-off-by: Randy Dunlap
Cc: Johannes Berg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a 00-INDEX file to Documentation/telephony/
Signed-off-by: Jesper Juhl
Acked-by: Rob Landley
Cc: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a 00-INDEX file to Documentation/sysctl/
Signed-off-by: Jesper Juhl
Cc: Rob Landley
Cc: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a 00-INDEX file to Documentation/mips/
Signed-off-by: Jesper Juhl
Cc: Rob Landley
Cc: Randy Dunlap
Cc: Ralf Baechle
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Looks like the 00-INDEX file lost its parent directory in -rc6-mm1.
Signed-off-by: David Rientjes
Cc: Jesper Juhl
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds a 00-INDEX file to Documentation/vm/
Signed-off-by: Jesper Juhl
Acked-by: Rob Landley
Cc: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Denis Cheng
Cc: Rob Landley
Cc: "Randy.Dunlap"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some documentation for "make headers_install".
Signed-off-by: Rob Landley
Cc: David Woodhouse
Cc: Sam Ravnborg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch cleans up duplicate includes in
Documentation/Signed-off-by: Jesper Juhl
Acked-by: Balbir Singh
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I'm going to be modifying nfsd_rename() shortly to support read-only bind
mounts. This #ifdef is around the area I'm patching, and it starts to get
really ugly if I just try to add my new code by itself. Using this little
helper makes things a lot cleaner to use.Signed-off-by: Dave Hansen
Acked-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
First of all, this makes the structure jumping look a little bit cleaner. So,
this stands alone as a tiny cleanup. But, we also need 'mnt' by itself a few
more times later in this series, so this isn't _just_ a cleanup.Signed-off-by: Dave Hansen
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
may_open() calls vfs_permission() before it does checks for IS_RDONLY(inode).
It checks _again_ inside of vfs_permission().The check inside of vfs_permission() is going away eventually. With the
mnt_want/drop_write() functions, all of the r/o checks (except for this one)
are consistently done before calling permission(). Because of this, I'd like
to use permission() to hold a debugging check to make sure that the
mnt_want/drop_write() calls are actually being made.So, to do this:
1. remove the IS_RDONLY() check from permission()
2. enforce that you must mnt_want_write() before
even calling permission()
3. actually add the debugging check to permission()We need to rearrange may_open() to do r/o checks before calling permission().
Here's the patch.Signed-off-by: Dave Hansen
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Why do we need r/o bind mounts?
This feature allows a read-only view into a read-write filesystem. In the
process of doing that, it also provides infrastructure for keeping track of
the number of writers to any given mount.This has a number of uses. It allows chroots to have parts of filesystems
writable. It will be useful for containers in the future because users may
have root inside a container, but should not be allowed to write to
somefilesystems. This also replaces patches that vserver has had out of the
tree for several years.It allows security enhancement by making sure that parts of your filesystem
read-only (such as when you don't trust your FTP server), when you don't want
to have entire new filesystems mounted, or when you want atime selectively
updated. I've been using the following script to test that the feature is
working as desired. It takes a directory and makes a regular bind and a r/o
bind mount of it. It then performs some normal filesystem operations on the
three directories, including ones that are expected to fail, like creating a
file on the r/o mount.This patch:
Some filesystems forego the vfs and may_open() and create their own 'struct
file's.This patch creates a couple of helper functions which can be used by these
filesystems, and will provide a unified place which the r/o bind mount code
may patch.Also, rename an existing, static-scope init_file() to a less generic name.
Signed-off-by: Dave Hansen
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add PNP debug message when adding a device, remove similar PNPACPI message
with less information.Signed-off-by: Bjorn Helgaas
Cc: Adam Belay
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Hoist the struct pnp_dev alloc up into the function where it's used.
Signed-off-by: Bjorn Helgaas
Cc: Adam Belay
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use dev_info() for a little consistency. Changes this:
pnp: 00:01: ioport range 0xf50-0xf58 has been reserved
pnp: 00:01: ioport range 0x408-0x40f has been reserved
pnp: 00:01: ioport range 0x900-0x903 has been reservedto this:
system 00:01: ioport range 0xf50-0xf58 has been reserved
system 00:01: ioport range 0x408-0x40f has been reserved
system 00:01: ioport range 0x900-0x903 has been reservedSigned-off-by: Bjorn Helgaas
Cc: Adam Belay
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If we have the struct pnp_dev available, we can use dev_info(), dev_err(),
etc., to give a little more information and consistency.[akpm@linux-foundation.org: fix warning]
Signed-off-by: Bjorn Helgaas
Cc: Adam Belay
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
No functional change; just return errors early instead of putting the main
part of the function inside an "if" statement.Signed-off-by: Bjorn Helgaas
Cc: Adam Belay
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove some null pointer checks. Null pointers in these areas indicate
programming errors, and I think it's better to oops immediately rather than
return an error that is easily ignored.Signed-off-by: Bjorn Helgaas
Cc: Adam Belay
Cc: Len Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Workaround for broken systems with BIOS that makes RTC interrupt level
triggered and/or active low.See http://bugzilla.kernel.org/show_bug.cgi?id=5243
Based on the patch from Shaohua Li
Signed-off-by: Krzysztof Piotr Oledzki
Cc: "Li, Shaohua"
Cc: Bjorn Helgaas
Cc: Andi Kleen
Cc: Adam Belay
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Most drivers for devices supporting ISA DMA can operate without DMA as well
(falling back zo PIO). Thus it seems inappropriate for PNP to fail device
initialization in case none of the possible DMA channels are available.
Instead, it should be left to the driver to decide what to do if
request_dma() fails.The patch at once adjusts the code to account for the fact that
pnp_assign_dma() now doesn't need to report failure anymore.Signed-off-by: Jan Beulich
Cc: Adam Belay
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
pnpacpi_suspend() doesn't check the result returned by
acpi_pm_device_sleep_state() before passing it to acpi_bus_set_power(),
which may not be desirable. Make it select the target power state of the
device using its second argument if acpi_pm_device_sleep_state() fails.Signed-off-by: Rafael J. Wysocki
Looks-ok-to: Pavel Machek
Cc: Adam Belay
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Define a new function fuse_refresh_attributes() that conditionally refreshes
the attributes based on the validity timeout.In fuse_permission() only refresh the attributes for checking the execute bits
if necessary.Signed-off-by: Miklos Szeredi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Don't return -ENOENT for a read() on the fuse device when the request was
aborted. Instead return -ENODEV, meaning the filesystem has been
force-umounted or aborted.Previously ENOENT meant that the request was interrupted, but now the
'aborted' flag is not set in case of interrupts.Signed-off-by: Miklos Szeredi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Don't set 'aborted' flag on a request if it's interrupted. We have to wait
for the answer anyway, and this would only a very little time while copying
the reply.This means, that write() on the fuse device will not return -ENOENT during
normal operation, only if the filesystem is aborted by a forced umount or
through the fusectl interface.This could simplify userspace code somewhat when backward compatibility with
earlier kernel versions is not required.Signed-off-by: Miklos Szeredi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
