17 Oct, 2007
40 commits
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AFAICS, fallout from repacing include of blkdev.h with include of bio.h.
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
This fixes a lost 'key' variable declaration that went missing in a
mismerge (commit b981d8b3f5e008ff10d993be633ad00564fc22cd)Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (33 commits)
amd74xx: remove /proc/ide/amd74xx
amd74xx/via82cxxx: don't initialize drive->dn
sis5513: remove /proc/ide/sis
ide: remove CONFIG_IDEDMA_ONLYDISK
ide: add "hdx=nodma" kernel parameter
ide: remove hwif->autodma and drive->autodma
ide: remove "idex=dma" kernel parameter
ide: remove CONFIG_BLK_DEV_IDEDMA_FORCED
ide: use PCI_VDEVICE() macro
sis5513: clear prefetch and postwrite for ATAPI devices
it8213/piix/slc90e66: "de-couple" PIO and UDMA modes
ide: unexport noautodma
ide: unexport ide_tune_dma
ide: remove ->ide_dma_check (take 2)
ide-pmac: add PIO autotune fallback to ->ide_dma_check
ide-cris: add PIO autotune fallback to ->ide_dma_check
sl82c105: add PIO autotune fallback to ->ide_dma_check
cs5530/sc1200: add PIO autotune fallback to ->ide_dma_check
ide: remove ide_use_fast_pio()
ide: remove drive->init_speed zeroing
... -
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
SELinux: kills warnings in Improve SELinux performance when AVC misses
SELinux: improve performance when AVC misses.
SELinux: policy selectable handling of unknown classes and perms
SELinux: Improve read/write performance
SELinux: tune avtab to reduce memory usage -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (25 commits)
firewire: fw-cdev: reorder wakeup vs. spinlock
firewire: in-code doc updates.
firewire: a header cleanup
firewire: adopt read cycle timer ABI from raw1394
firewire: fw-ohci: check for misconfigured bus (phyID == 63)
firewire: fw-ohci: missing dma_unmap_single
firewire: fw-ohci: log posted write errors
firewire: fw-ohci: reorder includes
firewire: fw-ohci: fix includes
firewire: fw-ohci: enforce read order for selfID generation
firewire: fw-sbp2: use an own workqueue (fix system responsiveness)
firewire: fw-sbp2: expose module parameter for workarounds
firewire: fw-sbp2: add support for multiple logical units per target
firewire: fw-sbp2: always enable IRQs before calling command ORB callback
firewire: fw-core: local variable shadows a global one
firewire: optimize fw_core_add_address_handler
ieee1394: ieee1394_core.c: use DEFINE_SPINLOCK for spinlock definition
ieee1394: csr1212: proper refcounting
ieee1394: nodemgr: fix leak of struct csr1212_keyval
ieee1394: pcilynx: I2C cleanups
... -
* ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
x86: fix boot error introduced by kbuild -
* 'release' of ssh://master.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Fix build for CONFIG_SMP=n -
This patch kills ugly warnings when the "Improve SELinux performance
when ACV misses" patch.Signed-off-by: KaiGai Kohei
Signed-off-by: James Morris -
* We add ebitmap_for_each_positive_bit() which enables to walk on
any positive bit on the given ebitmap, to improve its performance
using common bit-operations defined in linux/bitops.h.
In the previous version, this logic was implemented using a combination
of ebitmap_for_each_bit() and ebitmap_node_get_bit(), but is was worse
in performance aspect.
This logic is most frequestly used to compute a new AVC entry,
so this patch can improve SELinux performance when AVC misses are happen.
* struct ebitmap_node is redefined as an array of "unsigned long", to get
suitable for using find_next_bit() which is fasted than iteration of
shift and logical operation, and to maximize memory usage allocated
from general purpose slab.
* Any ebitmap_for_each_bit() are repleced by the new implementation
in ss/service.c and ss/mls.c. Some of related implementation are
changed, however, there is no incompatibility with the previous
version.
* The width of any new line are less or equal than 80-chars.The following benchmark shows the effect of this patch, when we
access many files which have different security context one after
another. The number is more than /selinux/avc/cache_threshold, so
any access always causes AVC misses.selinux-2.6 selinux-2.6-ebitmap
AVG: 22.763 [s] 8.750 [s]
STD: 0.265 0.019
------------------------------------------
1st: 22.558 [s] 8.786 [s]
2nd: 22.458 [s] 8.750 [s]
3rd: 22.478 [s] 8.754 [s]
4th: 22.724 [s] 8.745 [s]
5th: 22.918 [s] 8.748 [s]
6th: 22.905 [s] 8.764 [s]
7th: 23.238 [s] 8.726 [s]
8th: 22.822 [s] 8.729 [s]Signed-off-by: KaiGai Kohei
Acked-by: Stephen Smalley
Signed-off-by: James Morris -
Allow policy to select, in much the same way as it selects MLS support, how
the kernel should handle access decisions which contain either unknown
classes or unknown permissions in known classes. The three choices for the
policy flags are0 - Deny unknown security access. (default)
2 - reject loading policy if it does not contain all definitions
4 - allow unknown security accessThe policy's choice is exported through 2 booleans in
selinuxfs. /selinux/deny_unknown and /selinux/reject_unknown.Signed-off-by: Eric Paris
Acked-by: Stephen Smalley
Signed-off-by: James Morris -
It reduces the selinux overhead on read/write by only revalidating
permissions in selinux_file_permission if the task or inode labels have
changed or the policy has changed since the open-time check. A new LSM
hook, security_dentry_open, is added to capture the necessary state at open
time to allow this optimization.(see http://marc.info/?l=selinux&m=118972995207740&w=2)
Signed-off-by: Yuichi Nakamura
Acked-by: Stephen Smalley
Signed-off-by: James Morris -
This patch reduces memory usage of SELinux by tuning avtab. Number of hash
slots in avtab was 32768. Unused slots used memory when number of rules is
fewer. This patch decides number of hash slots dynamically based on number
of rules. (chain length)^2 is also printed out in avtab_hash_eval to see
standard deviation of avtab hash table.Signed-off-by: Yuichi Nakamura
Acked-by: Stephen Smalley
Signed-off-by: James Morris -
Signed-off-by: Jay Fenlason
Prompted by https://bugzilla.redhat.com/show_bug.cgi?id=323411
Signed-off-by: Stefan Richter
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Signed-off-by: Yann Dirson
Signed-off-by: Stefan Richter (update) -
fw_node() is not used (and not useful) outside fw-topology.c.
Signed-off-by: Stefan Richter
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This duplicates the read cycle timer feature of raw1394 (added in Linux
2.6.21) in firewire-core's userspace ABI. The argument to the ioctl is
reordered though to ensure 32/64 bit compatibility.Signed-off-by: Stefan Richter
Signed-off-by: Kristian Høgsberg -
Check NodeID.nodeNumber as per OHCI 1.1 clause 7.2.3.2. See also IEEE
1394a table 5B-1.Also, demote the "node ID not valid" message from error to notification
as it is not an error condition.Signed-off-by: Stefan Richter
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at_context_queue_packet() didn't clean up in an early exit path.
Signed-off-by: Stefan Richter
Signed-off-by: Kristian Høgsberg -
Signed-off-by: Stefan Richter
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Signed-off-by: Stefan Richter
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Add used includes, remove unused includes.
Signed-off-by: Stefan Richter
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It seems unlikely, but access to self_id_cpu[0] could at least in theory
be deferred until after the loop over self_id_cpu[1..n] or even after
the subsequent reg_read. Enforce the desired order by a read barrier.Also prevent the reg_read from being reordered relative to the for loop.
This isn't necessary if the loop's conditional printk counts as an
implicit barrier, but better make it explicit.(self_id_cpu[] is a coherent DMA buffer.)
Signed-off-by: Stefan Richter
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Firewire-sbp2 did very uncooperative things in the kernel's shared
workqueue: Sleeping until reception of management status from the
target for up to 2 seconds, and performing SCSI inquiry and all of the
setup of SCSI command set drivers via scsi_add_device. If there were
transient or permanent error conditions, this caused long blockage of
the kernel's events process, noticeable e.g. by blocked keyboard input.We now allocate a workqueue process exclusive to fw-sbp2. As a side
effect, this also increases parallelism of fw-sbp2's login and reconnect
work versus fw-core's device discovery and device update work which is
performed in the shared workqueue.Signed-off-by: Stefan Richter
Signed-off-by: Kristian Høgsberg -
On rare occasions, the ability to set one of the workaround flags at
runtime may save the day.People who experience I/O errors with firewire-sbp2 while the old sbp2
driver worked for them should try workarounds=1 and report to the devel
mailinglist whether that improves things. Firewire-sbp2 defaults to the
SCSI stack's maximum transfer size per command, while sbp2 limits them
to 128 kBytes. Flag 1 accomplishes just that.Signed-off-by: Stefan Richter
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Fixes "New firewire stack only recognizing half of a chain of drives",
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242254Signed-off-by: Stefan Richter
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On IOMMU-less noncoherent architectures, orb->callback will memcpy the
whole SCSI command buffer for READ-like SCSI commands. It is therefore
friendlier to enable IRQs before the call, like before patch "Add
ref-counting for sbp2 orbs".Signed-off-by: Stefan Richter
Acked-by: Kristian Høgsberg -
Sparse warned about it although it was apparently harmless:
drivers/firewire/fw-cdev.c:624:23: warning: symbol 'interrupt' shadows an earlier one
include/asm/hw_irq.h:29:13: originally declared hereSigned-off-by: Stefan Richter
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Potentially avoids unnecessary loop runs.
Guarantee quadlet-aligned starts of address regions.
Document the return values.Signed-off-by: Stefan Richter
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drivers/ieee1394/ieee1394_core.c: Define spinlock using
DEFINE_SPINLOCK instead of assignment to SPIN_LOCK_UNLOCKEDSigned-off-by: Matthias Kaehlcke
Signed-off-by: Stefan Richter -
At least since nodemgr got rid of coarse global locking, accesses to
struct csr1212_keyval's reference counter should be atomic and coupled
with proper barriers. Also, calls to csr1212_keep_keyval(kv) should
occur before kv is being used.(We probably should convert refcnt to struct kref, but how to keep
csr1212_destroy_keyval's implementation non-recursively then?)Signed-off-by: Stefan Richter
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csr1212_keep_keyval(kv) in nodemgr_process_root_directory was
unbalanced if ne->vendor_name_kv already exists. This happens for
example if eth1394 or raw1394 modify the local config ROM and it is
parsed again.As a bonus, the attempt to add the vendor_name_kv sysfs attribute
when it already exists is now fixed for good.Signed-off-by: Stefan Richter
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* Delete optional and empty i2c client_register and client_unregister
callbacks.
* Use the proper i2c adapter ID.
* Don't use a template to initialize the i2c_adapter structure, it's
inefficient.
* Update a misleading comment on why we use i2c_transfer rather than
higher level i2c functions.Signed-off-by: Jean Delvare
Signed-off-by: Stefan Richter -
The nodemgr host thread can exit on its own even when kthread_should_stop
is not true, on receiving a signal (might never happen in practice, as
it ignores signals). But considering kthread_stop() must not be mixed with
kthreads that can exit on their own, I think changing the code like this
is clearer. This change means the thread can cut its sleep short when
receive a signal but looking at the code around, that sounds okay (and
again, it might never actually recieve a signal in practice).Signed-off-by: Satyam Sharma
Signed-off-by: Stefan Richter -
sbp2_host_reset and sbp2_handle_status_write are not serialized against
sbp2_alloc_device and sbp2_remove_device.Signed-off-by: Stefan Richter
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Signed-off-by: Stefan Richter
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bad_proto can be reached from points which did not take priv->lock.
Signed-off-by: Stefan Richter
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Signed-off-by: Stefan Richter
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x86 uses target specific assignment of EXTRA_AFLAGS,
EXTRA_CFLAGS - this caused troubles with
introducing asflags-y, ccflags-y.Fixed the target specific assignments in arch/x86/boot/Makefile
and auditted the rest of the kernel for similar usage.Signed-off-by: Sam Ravnborg
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This belongs to user-space (and only if really needed).
text data bss dec hex filename
6723 2000 28 8751 222f drivers/ide/pci/amd74xx.o.before
3833 2000 16 5849 16d9 drivers/ide/pci/amd74xx.o.afterSigned-off-by: Bartlomiej Zolnierkiewicz
