- 25 Jun, 2006 40 commits
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KaiGai Kohei authored
In current 2.6.17 implementation, signal_struct refered from task_struct is used for per-process data structure. The pacct facility also uses it as a per-process data structure to store stime, utime, minflt, majflt. But those members are saved in __exit_signal(). It's too late. For example, if some threads exits at same time, pacct facility has a possibility to drop accountings for a part of those threads. (see, the following 'The results of original 2.6.17 kernel') I think accounting information should be completely collected into the per-process data structure before writing out an accounting record. This patch fixes this matter. Accumulation of stime, utime, minflt and majflt are done before generating accounting record. [mingo@elte.hu: fix acct_collect() siglock bug found by lockdep] Signed-off-by:
KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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KaiGai Kohei authored
When pacct facility generate an 'ac_flag' field in accounting record, it refers a task_struct of the thread which died last in the process. But any other task_structs are ignored. Therefore, pacct facility drops ASU flag even if root-privilege operations are used by any other threads except the last one. In addition, AFORK flag is always set when the thread of group-leader didn't die last, although this process has called execve() after fork(). We have a same matter in ac_exitcode. The recorded ac_exitcode is an exit code of the last thread in the process. There is a possibility this exitcode is not the group leader's one.
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KaiGai Kohei authored
The pacct facility need an i/o operation when an accounting record is generated. There is a possibility to wake OOM killer up. If OOM killer is activated, it kills some processes to make them release process memory regions. But acct_process() is called in the killed processes context before calling exit_mm(), so those processes cannot release own memory. In the results, any processes stop in this point and it finally cause a system stall.
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David Howells authored
Apply some small corrections to the memory barrier document, as contributed by: Christoph Lameter <clameter@sgi.com> Kirill Smelkov <kirr@mns.spb.ru> Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Paul Fulghum authored
Add support for SyncLink GT2 adapter to driver. Signed-off-by:
Paul Fulghum <paulkf@microgate.com> Signed-off-by:
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Paul Fulghum authored
Fix diagnostics error reporting that was being overwritten by incorrect use of return codes from individual diagnostic functions. Signed-off-by:
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Paul Fulghum authored
Add ability to return HDLC CRC to user application. Signed-off-by:
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Paul Fulghum authored
Add custom HDLC idle pattern feature. It allows the user to specify an arbitrary 8 or 16 bit repeating pattern on the transmit data pin between HDLC frames. In most cases the idle pattern is continuous ones or flags as supported by off the shelf synchronous controllers and defined in the ISO3309 standard. Some applications (radio/satellite modems, connections to legacy military hardware) require non-standard patterns. Signed-off-by:
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Andrew Morton authored
drivers/net/irda/irda-usb.c: In function 'stir421x_patch_device': drivers/net/irda/irda-usb.c:1108: warning: format '%u' expects type 'unsigned int', but argument 4 has type 'size_t' Cc: Greg KH <greg@kroah.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
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Randy Dunlap authored
Move kthread API kernel-doc from kthread.h to kthread.c & fix it. Add kthread API to kernel-api DocBook. Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Randy Dunlap authored
Add DMI interface functions to a new Firmware Interfaces chapter in the kernel-api DocBook. Clean up kernel-doc in drivers/firmware/dmi_scan.c. Signed-off-by:
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Jeremy Fitzhardinge authored
Implement kasprintf, a kernel version of asprintf. This allocates the memory required for the formatted string, including the trailing '\0'. Returns NULL on allocation failure. Signed-off-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by:
Chris Wright <chrisw@sous-sol.org> Signed-off-by:
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Jeremy Fitzhardinge authored
This change allows callers to use a 0-byte buffer and a NULL buffer pointer with vsnprintf, so it can be used to determine how large the resulting formatted string will be. Previously the code effectively treated a size of 0 as a size of 4G (on 32-bit systems), with other checks preventing it from actually trying to emit the string - but the terminal \0 would still be written, which would crash if the buffer is NULL. This change changes the boundary check so that 'end' points to the putative location of the terminal '\0', which is only written if size > 0. vsnprintf still allows the buffer size to be set very large, to allow unbounded buffer sizes (to implement sprintf, etc). [akpm@osdl.org: fix long-vs-longlong confusion] Signed-off-by:
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Atsushi Nemoto authored
Add an LED trigger acts like a heart beat. This can be used as a replacement of CONFIG_HEARTBEAT code exists in some arch's timer code. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by:
Richard Purdie <rpurdie@rpsys.net> Cc: "Nish Aravamudan" <nish.aravamudan@gmail.com> Signed-off-by:
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Randy Dunlap authored
Fix kernel-doc formatting in ktime.h and hrtimer.[ch] files. Signed-off-by:
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Randy Dunlap authored
Fix kernel-doc formatting in Reed-Solomon code. Signed-off-by:
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Randy Dunlap authored
kernel-doc struct fields should be consistently called "Members", not "Arguments", so switch man-mode output to use "Members" like all of the other formats do. Signed-off-by:
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Randy Dunlap authored
For kernel-doc output modes of text and man, do not use XML escapes for less-than, greater-than, and ampersand characters. I.e., leave the text and man output clean and readable. Signed-off-by:
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Paul Fulghum authored
Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by:
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Ulrich Drepper authored
When the linkat() syscall was added the flag parameter was added in the last minute but it wasn't used so far. The following patch should change that. My tests show that this is all that's needed. If OLDNAME is a symlink setting the flag causes linkat to follow the symlink and create a hardlink with the target. This is actually the behavior POSIX demands for link() as well but Linux wisely does not do this. With this flag (which will most likely be in the next POSIX revision) the programmer can choose the behavior, defaulting to the safe variant. As a side effect it is now possible to implement a POSIX-compliant link(2) function for those who are interested. touch file ln -s file symlink linkat(fd, "symlink", fd, "newlink", 0) -> newlink is hardlink of symlink linkat(fd, "symlink", fd, "newlink", AT_SYMLINK_FOLLOW) -> newlink is hardlink of file The value of AT_SYMLINK_FOLLOW is determined by the definition we already use in glibc. Signed-off-by:Ulrich Drepper <drepper@redhat.com> Acked-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Yoichi Yuasa authored
TANBAC_TB0229 requires GPIO_VR41XX. This patch adds "select GPIO_VR41XX" for TANBAC_TB0229. Signed-off-by:
Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by:
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Heiko Carstens authored
If a cpu hotplug callback fails on CPU_UP_PREPARE, all callbacks will be called with CPU_UP_CANCELED. A few of these callbacks assume that on CPU_UP_PREPARE a pointer to task has been stored in a percpu array. This assumption is not true if CPU_UP_PREPARE fails and the following calls to kthread_bind() in CPU_UP_CANCELED will cause an addressing exception because of passing a NULL pointer. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by:
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Frode Isaksen authored
If you do a poll() call with timeout -1, the wait will be a big number (depending on HZ) instead of infinite wait, since -1 is passed to the msecs_to_jiffies function. Signed-off-by:
Frode Isaksen <frode.isaksen@gmail.com> Acked-by:
Nishanth Aravamudan <nacc@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Serge E. Hallyn authored
- Update stop_machine.c to spawn stop_machine as kthreads rather than the deprecated kernel_threads. - Update stop_machine to use the more efficient kthread_bind() before running task in place of set_cpus_allowed() after. [akpm@osdl.org: remove now-wrong set_cpus_allowed()] Signed-off-by:
Serge E. Hallyn <serue@us.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Al Viro authored
%s is only valid if array is known to contain NUL or precision is given and does not exceed the size of array. Signed-off-by:
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Bjorn Helgaas authored
Make each one fit on a line so it's easier to read. I re-ordered COMPAQ_CISSC/0x4091, which was out of order. I double-checked these, but it would be good if you'd also check them to make sure I didn't miss any. Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Jeff Garzik <jeff@garzik.org> Acked-by:
Mike Miller <mike.miller@hp.com> Signed-off-by:
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Bjorn Helgaas authored
cciss is full of inconsistent style ("for (" vs. "for(", lines that end with whitespace, lines beginning with a mix of spaces & tabs, etc). This patch changes only whitespace. Signed-off-by:Jeff Garzik <jeff@garzik.org> Acked-by:
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Bjorn Helgaas authored
Typical Linux style is "return -EINVAL", not "return(-EINVAL)". Signed-off-by:
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Bjorn Helgaas authored
Fix a few spelling errors. Signed-off-by:
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Bjorn Helgaas authored
It's easier to verify loop bounds if the array name is mentioned the for() statement that steps through the array. Signed-off-by:
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Bjorn Helgaas authored
We already print "cciss: using DAC cycles" or similar for every adapter found: why not just identify the device we're talking about and include other useful information? Jeff Garzik <jeff@garzik.org>: Although this patch is correct, I would consider using dev_printk() rather than referencing pci_name() in printk() arguments. Signed-off-by:
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Bjorn Helgaas authored
We should call pci_request_regions() to claim all resources the device decodes. Previously, we claimed only the I/O port range. Signed-off-by:
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Bjorn Helgaas authored
If something fails after we call pci_enable_device(), we should call pci_disable_device() before returning the failure. Signed-off-by:
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Rob Landley authored
New section on creating an external initramfs image using cpio (with script), a warning about bad advice in the cpio man page, a bit of debugging advice (hello world and rdinit=/bin/sh), and a few minor tweaks to other parts of it. Signed-off-by:
Rob Landley <rob@landley.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
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Serge E. Hallyn authored
Update smbiod to use kthread instead of deprecated kernel_thread. [akpm@osdl.org: cleanup] Signed-off-by:
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Serge E. Hallyn authored
Update loop.c to use a kthread instead of a deprecated kernel_thread for loop devices. [akpm@osdl.org: don't change the thread's name] Signed-off-by:
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Randy Dunlap authored
Make kernel-doc corrections & additions to lib/crc*.c. Add crc functions to kernel-api.tmpl in DocBook. Signed-off-by:
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Randy Dunlap authored
Add a new chapter for kernel-lib functions to kernel-api.tmpl. Add lib/cmdline.c to the new kernel-lib chapter. Signed-off-by:
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Randy Dunlap authored
Make corrections/fixes to kernel-doc in lib/bitmap.c and include it in DocBook template. Signed-off-by:
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Eric Sesterhenn authored
coverity found two needless checks in vfs_inode.c (cid #1165 and #1164) In both cases inode is always NULL when we goto error; either because it is still initialized to NULL or is set to NULL explicitly. This patch simply removes these checks to save some code. Signed-off-by:
Eric Sesterhenn <snakebyte@gmx.de> Acked-by:
Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@lanl.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by:
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