- 28 Mar, 2006 40 commits
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Jesper Juhl authored
Fix "signed vs unsigned" in nmi_watchdog_tick. Signed-off-by:
Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Jesper Juhl authored
vfree() does it's own NULL checking, no need for explicit check before calling it. Signed-off-by:
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Jesper Juhl authored
There's no need to check pointers for NULL before handing them to vfree(). Signed-off-by:
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Jesper Juhl authored
vfree() checks for NULL, no need to do it explicitly. Signed-off-by:
Zach Brown <zab@zabbo.net> Signed-off-by:
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Jesper Juhl authored
There's no need to check the vfree() argument for NULL. Signed-off-by:
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Matthias Gehre authored
Replace all occurences of 0xff.. in calls to function pci_set_dma_mask() and pci_set_consistant_dma_mask() with the corresponding DMA_xBIT_MASK from linux/dma-mapping.h. Signed-off-by:
Matthias Gehre <M.Gehre@gmx.de> Signed-off-by:
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Marcelo Feitoza Parisi authored
They deal with wrapping correctly and are nicer to read. Signed-off-by:
Marcelo Feitoza Parisi <marcelo@feitoza.com.br> Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by:
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Marcelo Feitoza Parisi authored
They deal with wrapping correctly and are nicer to read. Signed-off-by:
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Marcelo Feitoza Parisi authored
It deals with wrapping correctly and is nicer to read. Signed-off-by:
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Marcelo Feitoza Parisi authored
They deal with wrapping correctly and are nicer to read. Signed-off-by:
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Adrian Bunk authored
Nowadays, even Debian stable ships a microcode_ctl utility recent enough to no longer use this ioctl. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Acked-by:
Tigran Aivazian <tigran_aivazian@symantec.com> Signed-off-by:
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Jesper Juhl authored
Add missing files and descriptions to Documentation/filesystems/00-INDEX Signed-off-by:
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Arjan van de Ven authored
This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by:
Arjan van de Ven <arjan@infradead.org> Signed-off-by:
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Arjan van de Ven authored
Mark the f_ops members of inodes as const, as well as fix the ripple-through this causes by places that copy this f_ops and then "do stuff" with it. Signed-off-by:
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Andrew Morton authored
Tweak the proc setup code so things work OK with const proc_dir_entry.proc_fops. Signed-off-by:
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KAMEZAWA Hiroyuki authored
Replace for_each_cpu with for_each_possible_cpu. Modifies occurences in documentaion. for_each_cpu in whatisRCU.txt should be for_each_online_cpu ??? (I'm not sure..) Signed-off-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by:
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KAMEZAWA Hiroyuki authored
This patch replaces for_each_cpu with for_each_possible_cpu. under arch/i386. Signed-off-by:
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KAMEZAWA Hiroyuki authored
This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by:
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KAMEZAWA Hiroyuki authored
This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by:
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KAMEZAWA Hiroyuki authored
replaces for_each_cpu with for_each_possible_cpu(). Signed-off-by:
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KAMEZAWA Hiroyuki authored
for_each_cpu() is a for-loop over cpu_possible_map. for_each_online_cpu is for-loop cpu over cpu_online_map. .....for_each_cpu() is not sufficiently explicit and can lead to mistakes. This patch adds for_each_possible_cpu() in preparation for the removal of for_each_cpu(). Signed-off-by:
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Vadim Lobanov authored
Remove an unnecessary level of indirection in allocating and freeing select bits, as per the select_bits_alloc() and select_bits_free() functions. Both select.c and compat.c are updated. Signed-off-by:
Vadim Lobanov <vlobanov@speakeasy.net> Signed-off-by:
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Eric Dumazet authored
Cc: Andi Kleen <ak@muc.de> Signed-off-by:
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Andi Kleen authored
Optimize select and poll by a using stack space for small fd sets This brings back an old optimization from Linux 2.0. Using the stack is faster than kmalloc. On a Intel P4 system it speeds up a select of a single pty fd by about 13% (~4000 cycles -> ~3500) It also saves memory because a daemon hanging in select or poll will usually save one or two less pages. This can add up - e.g. if you have 10 daemons blocking in poll/select you save 40KB of memory. I did a patch for this long ago, but it was never applied. This version is a reimplementation of the old patch that tries to be less intrusive. I only did the minimal changes needed for the stack allocation. The cut off point before external memory is allocated is currently at 832bytes. The system calls always allocate this much memory on the stack. These 832 bytes are divided into 256 bytes frontend data (for the select bitmaps of the pollfds) and the rest of the space for the wait queues used by the low level drivers. There are some extreme cases where this won't work out for select and it falls back to allocating memory too early - especially with very sparse large select bitmaps - but the majority of processes who only have a small number of file descriptors should be ok. [TBD: 832/256 might not be the best split for select or poll] I suspect more optimizations might be possible, but they would be more complicated. One way would be to cache the select/poll context over multiple system calls because typically the input values should be similar. Problem is when to flush the file descriptors out though. Signed-off-by:
Andi Kleen <ak@suse.de> Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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Andrew Morton authored
drivers/ide/pci/generic.c:45: warning: `ide_generic_all_on' defined but not used Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by:
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Alan Cox authored
Some quick backport bits from the libata PATA work to fix things found in the sis driver. The piix driver needs some fixes too but those are way to large and need someone working on old IDE with time to do them. This patch fixes the case where random bits get loaded into SIS timing registers according to the description of the correct behaviour from Vojtech Pavlik. It also adds the SiS5517 ATA16 chipset which is not currently supported by the driver. Thanks to Conrad Harriss for loaning me the machine with the 5517 chipset. Signed-off-by:
Alan Cox <alan@redhat.com> Acked-by:
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by:
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Rene Herman authored
>From http://marc.theaimsgroup.com/?l=linux-kernel&m=110304128900342&w=2 AMD756 doesn't support host side cable detection. Do disk side only and don't advice obsolete options. Acked-by:
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
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Adrian Bunk authored
Add a proper prototype for autofs4_dentry_release() to autofs_i.h. Signed-off-by:
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Alexey Dobriyan authored
A size_t can't be < 0. (akpm: and rw_verify_area() already did that check) Signed-off-by:
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Andrew Morton authored
This is obsolete. Cc: Tom Zanussi <zanussi@us.ibm.com> Cc: Jens Axboe <axboe@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Philip Gladstone authored
I noticed that my email address is four jobs ago. Signed-off-by:
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Adrian Bunk authored
Add proper prototypes for fat_cache_init() and fat_cache_destroy() in msdos_fs.h. Signed-off-by:
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by:
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Adrian Bunk authored
The Coverity checker found this off-by-one error. Signed-off-by:
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Eric Sesterhenn authored
Since dash2underscore() just operates and returns chars, I guess its safe to change the return value to a char. With my .config, this reduces its size by 5 bytes. text data bss dec hex filename 4155 152 0 4307 10d3 params.o.orig 4150 152 0 4302 10ce params.o Signed-off-by:
Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by:
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Serge E. Hallyn authored
(akpm: I don't do comment typos patches. This one snuck through by accident) Signed-off-by:
Serge Hallyn <serue@us.ibm.com> Signed-off-by:
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Andrew Morton authored
Renumber the recently-added POLLREMOVE and POLLRDHUP to line up with the other architectures. Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by:
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Brian Rogan authored
On ppc64 we look at a profiling register to work out the sample address and if it was in userspace or kernel. The backtrace interface oprofile_add_sample does not allow this. Create oprofile_add_ext_sample and make oprofile_add_sample use it too. Signed-off-by:
Anton Blanchard <anton@samba.org> Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: John Levon <levon@movementarian.org> Signed-off-by:
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Andrew Morton authored
gcc-4.2: kernel/module.c: In function '__find_symbol': kernel/module.c:158: warning: the address of '__start___kcrctab', will always evaluate as 'true' kernel/module.c:165: warning: the address of '__start___kcrctab_gpl', will always evaluate as 'true' kernel/module.c:182: warning: the address of '__start___kcrctab_gpl_future', will always evaluate as 'true' Signed-off-by:
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Andrew Morton authored
If the user specified `major=0' (odd thing to do), capi.c will use dynamic allocation. We need to pick up that major for subsequent unregister_chrdev(). Acked-by:
Karsten Keil <kkeil@suse.de> Signed-off-by:
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Andrew Morton authored
If the user specified `major=0' (odd thing to do), pt.c will use dynamic allocation. We need to pick up that major for subsequent unregister_chrdev(). Signed-off-by:
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