- 23 May, 2008 9 commits
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Mike Travis authored
Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by:
Paul Jackson <pj@sgi.com> Reviewed-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
Mike Travis <travis@sgi.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> commit 2d474871e2fb092eb46a0930aba5442e10eb96cc Author: Mike Travis <travis@sgi.com> Date: Mon May 12 21:21:13 2008 +0200
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Mike Travis authored
Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by:
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Mike Travis authored
Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by:
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Mike Travis authored
Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by:
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Mike Travis authored
Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by:
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Mike Travis authored
Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by:
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Mike Travis authored
* Increase performance for systems with large count NR_CPUS by limiting the range of the cpumask operators that loop over the bits in a cpumask_t variable. This removes a large amount of wasted cpu cycles. * Add performance variants of the cpumask operators: int cpus_weight_nr(mask) Same using nr_cpu_ids instead of NR_CPUS int first_cpu_nr(mask) Number lowest set bit, or nr_cpu_ids int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids for_each_cpu_mask_nr(cpu, mask) for-loop cpu over mask using nr_cpu_ids * Modify following to use performance variants: #define num_online_cpus() cpus_weight_nr(cpu_online_map) #define num_possible_cpus() cpus_weight_nr(cpu_possible_map) #define num_present_cpus() cpus_weight_nr(cpu_present_map) #define for_each_possible_cpu(cpu) for_each_cpu_mask_nr((cpu), ...) #define for_each_online_cpu(cpu) for_each_cpu_mask_nr((cpu), ...) #define for_each_present_cpu(cpu) for_each_cpu_mask_nr((cpu), ...) * Comment added to include/linux/cpumask.h: Note: The alternate operations with the suffix "_nr" are used to limit the range of the loop to nr_cpu_ids instead of NR_CPUS when NR_CPUS > 64 for performance reasons. If NR_CPUS is <= 64 then most assembler bitmask operators execute faster with a constant range, so the operator will continue to use NR_CPUS. Another consideration is that nr_cpu_ids is initialized to NR_CPUS and isn't lowered until the possible cpus are discovered (including any disabled cpus). So early uses will span the entire range of NR_CPUS. (The net effect is that for systems with 64 or less CPU's there are no functional changes.) For inclusion into sched-devel/latest tree. Based on: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git + sched-devel/latest .../mingo/linux-2.6-sched-devel.git Cc: Paul Jackson <pj@sgi.com> Cc: Christoph Lameter <clameter@sgi.com> Reviewed-by: -
Mike Travis authored
This patch makes the following needlessly global code static: - attr_online_map - attr_possible_map - attr_present_map - cpu_state_attr [v2] Signed-off-by:
Adrian Bunk <bunk@kernel.org> Signed-off-by:
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Mike Travis authored
* Replace usages of MAX_NUMNODES with nr_node_ids in kernel/sched.c, where appropriate. This saves some allocated space as well as many wasted cycles going through node entries that are non-existent. For inclusion into sched-devel/latest tree. Based on: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git + sched-devel/latest .../mingo/linux-2.6-sched-devel.git Signed-off-by:
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- 22 May, 2008 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Fix reversed memset arguments Adds username in the upcall key for unattended mounts with keytab [CIFS] Remove redundant NULL check
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Dave Jones authored
Signed-off-by:
Dave Jones <davej@redhat.com> Signed-off-by:
Steve French <sfrench@us.ibm.com>
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Igor Mammedov authored
Signed-off-by:
Igor Mammedov <niallain@gmail.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: The world is not perfect patch. tcp: Make prior_ssthresh a u32 xfrm_user: Remove zero length key checks. net/ipv4/arp.c: Use common hex_asc helpers cassini: Only use chip checksum for ipv4 packets. tcp: TCP connection times out if ICMP frag needed is delayed netfilter: Move linux/types.h inclusions outside of #ifdef __KERNEL__ af_key: Fix selector family initialization. libertas: Fix ethtool statistics mac80211: fix NULL pointer dereference in ieee80211_compatible_rates mac80211: don't claim iwspy support orinoco_cs: add ID for SpeedStream wireless adapters hostap_cs: add ID for Conceptronic CON11CPro rtl8187: resource leak in error case ath5k: Fix loop variable initializations
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Prevent stack backtrace false positives on trap frames. sparc64: Fix stack tracing through trap frames. sparc64: Fix kernel thread stack termination. sunhv: Fix locking in non-paged I/O case.
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David S. Miller authored
When we fully commit to returning back to kernel mode from a trap, zero out the regs->magic value to prevent false positives during stack backtraces. Signed-off-by:David S. Miller <davem@davemloft.net>
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Steve French authored
Noticed by Coverity checker. Signed-off-by: -
David S. Miller authored
The offset to the pt_regs area was wrong, so we weren't looking at the right location for the magic cookie. A trap frame is composed of a "struct sparc_stackf" then a "struct pt_regs", the code was using "struct reg_window" instead of "struct sparc_stackf". Signed-off-by: -
David S. Miller authored
Because of the silly way I set up the initial stack for new kernel threads, there is a loop at the top of the stack. To fix this, properly add another stack frame that is copied from the parent and terminate it in the child by setting the frame pointer in that frame to zero. Signed-off-by: -
Rami Rosen authored
Unless there will be any objection here, I suggest consider the following patch which simply removes the code for the -DI_WISH_WORLD_WERE_PERFECT in the three methods which use it. The compilation errors we get when using -DI_WISH_WORLD_WERE_PERFECT show that this code was not built and not used for really a long time. Signed-off-by:
Rami Rosen <ramirose@gmail.com> Signed-off-by:
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Ilpo Järvinen authored
If previous window was above representable values of u16, strange things will happen if undo with the truncated value is called for. Alternatively, this could be fixed by some max trickery but that would limit undoing high-speed undos. Adds 16-bit hole but there isn't anything to fill it with. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
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David S. Miller authored
The crypto layer will determine whether that is valid or not. Suggested by Herbert Xu, based upon a report and patch by Martin Willi. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au>
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Denis Cheng authored
Here the local hexbuf is a duplicate of global const char hex_asc from lib/hexdump.c, except the hex letters' cases: const char hexbuf[] = "0123456789ABCDEF"; const char hex_asc[] = "0123456789abcdef"; and here to print HW addresses, the hex cases are not significant. Thanks to Harvey Harrison to introduce the hex_asc_hi/hex_asc_lo helpers. Signed-off-by:
Denis Cheng <crquan@gmail.com> Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
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David S. Miller authored
According to David Monro, at least with Natsemi Saturn chips the cassini driver has some trouble with ipv6 checksums. Until we have more information about what's going on here, only use the chip checksums for ipv4. This workaround was suggested and tested by David. Update version and release date. Signed-off-by:
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- 21 May, 2008 17 commits
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Al Viro authored
driver uses symbols defined only on ARM Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Al Viro authored
Whether we sidestep it in init/main.c or not, such situations will arise again; compiler does generate calls of strcat() on optimizations, so we really ought to have an out-of-line version... Signed-off-by:
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Al Viro authored
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Al Viro authored
... and we have few enough places using the latter to make it simpler to do search and replace... Signed-off-by:
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
memcpy() from userland pointer is a Bad Thing(tm) Signed-off-by:
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
Fallout from commit 46d7b522 ("uml: move hppfs_kern.c to hppfs.c") Signed-off-by:
Jeff Dike <jdike@addtoit.com> Signed-off-by:
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Al Viro authored
We want sys/ptrace.h before any includes of linux/ptrace.h and asm/user.h pulls the latter. Signed-off-by:
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Al Viro authored
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