flags can be or'd together and are
DMA_MEMORY_MAP - request that the memory returned from
-dma_alloc_coherent() be directly writeable.
+dma_alloc_coherent() be directly writable.
DMA_MEMORY_IO - request that the memory returned from
dma_alloc_coherent() be addressable using read/write/memcpy_toio etc.
Note that the pre-assigned IOAPIC dev->irq is valid only if the device
operates in PIN-IRQ assertion mode. In MSI-X mode, any attempt at
using dev->irq by the device driver to request for interrupt service
-may result unpredictabe behavior.
+may result in unpredictable behavior.
For each MSI-X vector granted, a device driver is responsible for calling
other functions like request_irq(), enable_irq(), etc. to enable
However, maintaining per-process, in addition to per-task stats, within the
kernel has space and time overheads. To address this, the taskstats code
-accumalates each exiting task's statistics into a process-wide data structure.
-When the last task of a process exits, the process level data accumalated also
+accumulates each exiting task's statistics into a process-wide data structure.
+When the last task of a process exits, the process level data accumulated also
gets sent to userspace (along with the per-task data).
When a user queries to get per-tgid data, the sum of all other live threads in
-the group is added up and added to the accumalated total for previously exited
+the group is added up and added to the accumulated total for previously exited
threads of the same thread group.
Extending taskstats
on to the generic block layer, only to be merged by the i/o scheduler
when the underlying device was capable of handling the i/o in one shot.
Also, using the buffer head as an i/o structure for i/os that didn't originate
-from the buffer cache unecessarily added to the weight of the descriptors
+from the buffer cache unnecessarily added to the weight of the descriptors
which were generated for each such chunk.
The following were some of the goals and expectations considered in the
for raw i/o.
ii. Ability to represent high-memory buffers (which do not have a virtual
address mapping in kernel address space).
-iii.Ability to represent large i/os w/o unecessarily breaking them up (i.e
+iii.Ability to represent large i/os w/o unnecessarily breaking them up (i.e
greater than PAGE_SIZE chunks in one shot)
iv. At the same time, ability to retain independent identity of i/os from
different sources or i/o units requiring individual completion (e.g. for
latency reasons)
v. Ability to represent an i/o involving multiple physical memory segments
(including non-page aligned page fragments, as specified via readv/writev)
- without unecessarily breaking it up, if the underlying device is capable of
+ without unnecessarily breaking it up, if the underlying device is capable of
handling it.
vi. Preferably should be based on a memory descriptor structure that can be
passed around different types of subsystems or layers, maybe even
The disadvantage is that the driver/hardware has to manage the rest. For
the application programmer it would be as simple as sending/receiving an
array to/from the CI ioctls as defined in the Linux DVB API. No changes
-have been made in the API to accomodate this feature.
+have been made in the API to accommodate this feature.
* Why the need for another CI interface ?
implemented by most applications. Hence this area is revisited.
This CI interface is quite different in the case that it tries to
-accomodate all other CI based devices, that fall into the other categories
+accommodate all other CI based devices, that fall into the other categories.
This means that this CI interface handles the EN50221 style tags in the
Application layer only and no session management is taken care of by the
bus_base_addr : slot 0 address on this bus
slots : max slot number to probe
force_probe : Probe even when slot 0 is empty (no EISA mainboard)
-dma_mask : Default DMA mask. Usualy the bridge device dma_mask.
+dma_mask : Default DMA mask. Usually the bridge device dma_mask.
bus_nr : unique bus id, set by eisa_root_register
** Driver :
uid=nnn All files in the partition will be owned by
user id nnn. Default 0 (root).
- gid=nnn All files in the partition willbe in group
+ gid=nnn All files in the partition will be in group
nnn. Default 0 (root).
ownmask=nnn The permission mask for ADFS 'owner' permissions
will be nnn. Default 0700.
[struct config_group]
-A config_item cannot live in a vaccum. The only way one can be created
+A config_item cannot live in a vacuum. The only way one can be created
is via mkdir(2) on a config_group. This will trigger creation of a
child item.
[struct configfs_subsystem]
-A subsystem must register itself, ususally at module_init time. This
+A subsystem must register itself, usually at module_init time. This
tells configfs to make the subsystem appear in the file tree.
struct configfs_subsystem {
Fixed race-condition in buffer code - it is in all filesystems in Linux;
when reading device (cat /dev/hda) while creating files on it, files
could be damaged
-2.02 Woraround for bug in breada in Linux. breada could cause accesses beyond
+2.02 Workaround for bug in breada in Linux. breada could cause accesses beyond
end of partition
2.03 Char, block devices and pipes are correctly created
Fixed non-crashing race in unlink (Alexander Viro)
Features which OCFS2 does not support yet:
- sparse files
- extended attributes
- - shared writeable mmap
+ - shared writable mmap
- loopback is supported, but data written will not
be cluster coherent.
- quotas
you probably should increase the lower_zone_protection setting.
The units of this tunable are fairly vague. It is approximately equal
-to "megabytes". So setting lower_zone_protection=100 will protect around 100
+to "megabytes," so setting lower_zone_protection=100 will protect around 100
megabytes of the lowmem zone from user allocations. It will also make
-those 100 megabytes unavaliable for use by applications and by
+those 100 megabytes unavailable for use by applications and by
pagecache, so there is a cost.
The effects of this tunable may be observed by monitoring
/signal2
The two signal notification channels of an SPU. These are read-write
files that operate on a 32 bit word. Writing to one of these files
- triggers an interrupt on the SPU. The value writting to the signal
+ triggers an interrupt on the SPU. The value written to the signal
files can be read from the SPU through a channel read or from host user
space through the file. After the value has been read by the SPU, it
is reset to zero. The possible operations on an open signal1 or sig-
Wed Apr 17 22:52:44 CEST 2002 edited by Marcin Dalecki, the current
maintainer.
-Wed Aug 20 22:31:29 CEST 2003 updated ide boot uptions to current ide.c
+Wed Aug 20 22:31:29 CEST 2003 updated ide boot options to current ide.c
comments at 2.6.0-test4 time. Maciej Soltysiak <solt@dns.toxicfilms.tv>
5.1 Joystick Event Reporting
-In this mode, the ikbd generates a record whever the joystick position is
+In this mode, the ikbd generates a record whenever the joystick position is
changed (i.e. for each opening or closing of a joystick switch or trigger).
The joystick event record is two bytes of the form:
Ok, this is where problems start. The current interface for
the CDROM_DISC_STATUS ioctl is flawed. It makes the false
assumption that CDs are all CDS_DATA_1 or all CDS_AUDIO, etc.
- Unfortunatly, while this is often the case, it is also
+ Unfortunately, while this is often the case, it is also
very common for CDs to have some tracks with data, and some
tracks with audio. Just because I feel like it, I declare
the following to be the best way to cope. If the CD has
Dax Kelson submitted this so that the ACPI acpid daemon will
kick off the laptop_mode script and run hdparm. The part that
automatically disables laptop mode when the battery is low was
-writen by Jan Topinski.
+written by Jan Topinski.
-----------------/etc/acpi/events/ac_adapter BEGIN------------------------------
event=ac_adapter
5) dev->close() and dev->suspend() issues
==========================================
-The driver writter neednt worry about this. The top net layer takes
+The driver writer needn't worry about this; the top net layer takes
care of it.
6) Adding new Stats to /proc
packets fast enough i.e send a pause only when you run out of rx buffers.
Note FC in itself is a good solution but we have found it to not be
much of a commodity feature (both in NICs and switches) and hence falls
-under the same category as using NIC based mitigation. Also experiments
-indicate that its much harder to resolve the resource allocation
-issue (aka lazy receiving that NAPI offers) and hence quantify its usefullness
+under the same category as using NIC based mitigation. Also, experiments
+indicate that it's much harder to resolve the resource allocation
+issue (aka lazy receiving that NAPI offers) and hence quantify its usefulness
proved harder. In any case, FC works even better with NAPI but is not
necessary.
depending on the load of the system. If the driver detects that the
system load is too high, the driver tries to shield the system against
too much network load by enabling interrupt moderation. If - at a later
- time - the CPU utilizaton decreases again (or if the network load is
+ time - the CPU utilization decreases again (or if the network load is
negligible) the interrupt moderation will automatically be disabled.
Interrupt moderation should be used when the driver has to handle one or more
Though the options below are to be set on a single interface, they apply to the
whole board. The restriction, to use them on 'UP' interfaces, is because the
-command sequence below could lead to unpredicable results.
+command sequence below could lead to unpredictable results.
# echo 0 >boardnum
# echo internal >clock_source
beta3-2.1.4 Jul 2000 o X25 M_BIT Problem fix.
o Added the Multi-Port PPP
- Updated utilites for the Multi-Port PPP.
+ Updated utilities for the Multi-Port PPP.
2.1.4 Aut 2000
o In X25API:
o Keyboard Led Monitor/Debugger
- - A new utilty /usr/sbin/wpkbdmon uses keyboard leds
+ - A new utility /usr/sbin/wpkbdmon uses keyboard leds
to convey operational statistic information of the
Sangoma WANPIPE cards.
NUM_LOCK = Line State (On=connected, Off=disconnected)
Please note that the character 'X' can be used as a wild card in the function
portion (last four characters).
ex:
- /* Unkown PnP modems */
+ /* Unknown PnP modems */
{ "PNPCXXX", UNKNOWN_DEV },
Supported PnP card IDs can optionally be defined.
1) the 'head' pointer or an subsequent linked list pointer
is not a valid address of a user space word
2) the calculated location of the 'lock word' (address plus
- 'offset') is not the valud address of a 32 bit user space
+ 'offset') is not the valid address of a 32 bit user space
word
3) if the list contains more than 1 million (subject to
future kernel configuration changes) elements.
This needs the RD-Bit to be disabled on IM_OTHER_SCSI_CMD_CMD which
allows data to be written from the system to the device. It is a
necessary step to be allowed to set blocksize of SCSI-tape-drives and
- the tape-speed, whithout confusing the SCSI-Subsystem.
+ the tape-speed, without confusing the SCSI-Subsystem.
2) The recognition of a tape is included in the check_devices routine.
This is done by checking for TYPE_TAPE, that is already defined in
the kernel-scsi-environment. The markup of a tape is done in the
ftp://ftp.symbios.com/
-Usefull SCSI tools written by Eric Youngdale are available at tsx-11:
+Useful SCSI tools written by Eric Youngdale are available at tsx-11:
ftp://tsx-11.mit.edu/pub/linux/ALPHA/scsi/scsiinfo-X.Y.tar.gz
ftp://tsx-11.mit.edu/pub/linux/ALPHA/scsi/scsidev-X.Y.tar.gz
The EMU10K2 chips have a DSP part which can be programmed to support
various ways of sample processing, which is described here.
-(This acticle does not deal with the overall functionality of the
+(This article does not deal with the overall functionality of the
EMU10K2 chips. See the manuals section for further details.)
The ALSA driver programs this portion of chip by default code
The EMU10K1 chips have a DSP part which can be programmed to support
various ways of sample processing, which is described here.
-(This acticle does not deal with the overall functionality of the
+(This article does not deal with the overall functionality of the
EMU10K1 chips. See the manuals section for further details.)
The ALSA driver programs this portion of chip by default code
- Making it world-writeable looks bad, but it seems not to be
+ Making it world-writable looks bad, but it seems not to be
exploitable as a security hole. However, it does allow anyone to cre-
ate useless tap devices (useless because they can't configure them),
which is a DOS attack. A somewhat more secure alternative would to be
projects / openwrt / staging / blogic.git / commitdiff