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* Freezer: make kernel threads nonfreezable by defaultRafael J. Wysocki2007-07-172-11/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the freezer treats all tasks as freezable, except for the kernel threads that explicitly set the PF_NOFREEZE flag for themselves. This approach is problematic, since it requires every kernel thread to either set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't care for the freezing of tasks at all. It seems better to only require the kernel threads that want to or need to be frozen to use some freezer-related code and to remove any freezer-related code from the other (nonfreezable) kernel threads, which is done in this patch. The patch causes all kernel threads to be nonfreezable by default (ie. to have PF_NOFREEZE set by default) and introduces the set_freezable() function that should be called by the freezable kernel threads in order to unset PF_NOFREEZE. It also makes all of the currently freezable kernel threads call set_freezable(), so it shouldn't cause any (intentional) change of behaviour to appear. Additionally, it updates documentation to describe the freezing of tasks more accurately. [akpm@linux-foundation.org: build fixes] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'drm-patches' of ↵Linus Torvalds2007-07-172-1/+3
|\ | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: add idr_init to drm_stub.c drm: fix problem with SiS typedef with sisfb enabled.
| * drm: add idr_init to drm_stub.cDave Airlie2007-07-171-0/+2
| | | | | | | | | | | | Brown paper bag for me this patch chunk didn't make it in the first application Signed-off-by: Dave Airlie <airlied@linux.ie>
| * drm: fix problem with SiS typedef with sisfb enabled.Dave Airlie2007-07-171-1/+1
| | | | | | | | | | | | Reported by: Avuton Olrich <avuton@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
* | Merge branch 'drm-patches' of ↵Linus Torvalds2007-07-164-312/+93
|\ \ | |/ | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: convert drawable code to using idr drm: convert drm context code to use Linux idr
| * drm: convert drawable code to using idrDave Airlie2007-07-173-209/+60
| | | | | | | | | | | | | | | | This converts the code for allocating drawables to the Linux idr, Fixes from: Michel Dänzer <michel@tungstengraphics.com>, Kristian Høgsberg <krh@redhat.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
| * drm: convert drm context code to use Linux idrDave Airlie2007-07-172-103/+33
| | | | | | | | | | | | | | | | | | This converts the drm context allocator to an idr, using the new idr interface features from Kristian. Fixes from Kristian Hoegsberg <krh@redhat.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
* | Merge branch 'merge' of ↵Linus Torvalds2007-07-163-17/+7
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits) [POWERPC] Create add_rtc() function to enable the RTC CMOS driver [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration [POWERPC] Oprofile support for Power 5++ [POWERPC] Enable arbitary speed tty ioctls and split input/output speed [POWERPC] Make drivers/char/hvc_console.c:khvcd() static [POWERPC] Remove dead code for preventing pread() and pwrite() calls [POWERPC] Remove unnecessary #undef printk from prom.c [POWERPC] Fix typo in Ebony default DTS [POWERPC] Check for NULL ppc_md.init_IRQ() before calling [POWERPC] Remove extra return statement [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED [POWERPC] pasemi: Rename platform [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports [POWERPC] Add __read_mostly support for powerpc [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane [POWERPC] Create a dummy zImage if no valid platform has been selected [POWERPC] PS3: Bootwrapper support. [POWERPC] powermac i2c: Use mutex [POWERPC] Schedule removal of arch/ppc ... Fixed up conflicts manually in: Documentation/feature-removal-schedule.txt arch/powerpc/kernel/pci_32.c arch/powerpc/kernel/pci_64.c include/asm-powerpc/pci.h and asked the powerpc people to double-check the result..
| * Merge branch 'for-2.6.23' into mergePaul Mackerras2007-07-113-17/+7
| |\
| | * [POWERPC] Make drivers/char/hvc_console.c:khvcd() staticAdrian Bunk2007-07-101-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Remove dead code for preventing pread() and pwrite() callsRobert P. J. Day2007-07-101-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the deactivated code for checking for pread() and pwrite() calls on the PPC-based BRIQ. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] VIOTAPE: Use designated initializers for fops member structures.Robert P. J. Day2007-07-101-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the old-style member initializers with the newer designated initializers. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | Merge branch 'drm-patches' of ↵Linus Torvalds2007-07-1677-2214/+2485
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-patches' of ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: remove core typedefs from the ioc32 wrappers drm: remove sarea typedefs drm: detypedef the hashtab and more of sman drm: de-typedef sman drm: detypedeffing continues... drm: detypef waitlist/freelist/buf_entry/device_dma/drm_queue structs drm: drop drm_vma_entry_t, drm_magic_entry_t drm: drop drm_buf_t typedef drm: fixup other drivers for typedef removals drm: remove drm_file_t, drm_device_t and drm_head_t typedefs drm: remove a bunch of typedefs on the userspace interface r300: updates register header radeon: add support for vblank on crtc2 drm: cleanup list initialisation drm: fix typo on code drm getsarea drm: remove DRM_GETSAREA and replace with drm_getsarea function drm: cleanup use of Linux list handling macros
| * | | drm: remove core typedefs from the ioc32 wrappersDave Airlie2007-07-161-41/+41
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: remove sarea typedefsDave Airlie2007-07-122-9/+15
| | | | | | | | | | | | | | | | | | | | | | | | Leave the userspace typedefs in place Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: detypedef the hashtab and more of smanDave Airlie2007-07-128-59/+59
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: de-typedef smanDave Airlie2007-07-126-49/+51
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: detypedeffing continues...Dave Airlie2007-07-1123-142/+143
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: detypef waitlist/freelist/buf_entry/device_dma/drm_queue structsDave Airlie2007-07-1116-80/+81
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: drop drm_vma_entry_t, drm_magic_entry_tDave Airlie2007-07-115-19/+15
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: drop drm_buf_t typedefDave Airlie2007-07-1120-104/+104
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: fixup other drivers for typedef removalsDave Airlie2007-07-1122-296/+296
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: remove drm_file_t, drm_device_t and drm_head_t typedefsDave Airlie2007-07-1142-432/+432
| | | | | | | | | | | | | | | | | | | | | | | | some drivers still todo. Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: remove a bunch of typedefs on the userspace interfaceDave Airlie2007-07-1125-320/+367
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves a bunch of typedefs into a !defined __KERNEL__ to keep userspace API compatiblity, it changes all internal usages to structs/enum/unions. Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | r300: updates register headerOliver McFadden2007-07-112-506/+698
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the R300 register names and allows the VAP_PVS_WAITIDLE register to be written. Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | radeon: add support for vblank on crtc2Dave Airlie2007-07-116-14/+124
| | | | | | | | | | | | | | | | | | | | | | | | This adds support for CRTC2 vblank on radeon similiar to the i915. Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: cleanup list initialisationDave Airlie2007-07-112-5/+4
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: fix typo on code drm getsareaDave Airlie2007-07-111-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: remove DRM_GETSAREA and replace with drm_getsarea functionDave Airlie2007-07-119-26/+22
| | | | | | | | | | | | | | | | Signed-off-by: Dave Airlie <airlied@linux.ie>
| * | | drm: cleanup use of Linux list handling macrosDave Airlie2007-07-1118-195/+116
| |/ / | | | | | | | | | | | | | | | | | | | | | This makes the drms use of the list handling macros a lot cleaner and more along the lines of how they should be used and uses them in some more places. Signed-off-by: Dave Airlie <airlied@linux.ie>
* | | drivers/char/ipmi/ipmi_si_intf.c: lower printk severityDan Aloni2007-07-161-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Dan Aloni <da-x@monatomic.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/char/ipmi/ipmi_poweroff.c: lower printk severityDan Aloni2007-07-161-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Dan Aloni <da-x@monatomic.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | serial: remove termios checks from various old char serial driversAlan Cox2007-07-165-38/+12
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | synclink: remove bogus 'no change' termios optimisation from synclink driversAlan Cox2007-07-163-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Again this check is wrong now, and un-needed Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | genericserial: remove bogus optimisation check and dead code pathsAlan Cox2007-07-161-117/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We've been using the 'new locking' for a long time now so it seems pointless keeping the old one around. Remove it and undo the macros it uses back into real code for readability. Remove the bogus 'no termios change' checks. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Morten Helgesen <morten@sourcepoet.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | amiserial: remove incorrect 'no termios change' checkAlan Cox2007-07-161-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lots of serial drivers check and optimise for setting the termios values to the ones they were before. This is pointless and the check is wrong anyway. Remove the checks on the serial drivers. If we ever do need such a check put it back in the tty layer instead _once_! Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | COBALT: remove all references to Cobalt NVRAMRobert P. J. Day2007-07-161-191/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove not only the references to Cobalt NVRAM, but the header file as well. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Acked-by: Tim Hockin <thockin@hockin.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Audit: add TTY input auditingMiloslav Trmac2007-07-164-5/+375
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add TTY input auditing, used to audit system administrator's actions. This is required by various security standards such as DCID 6/3 and PCI to provide non-repudiation of administrator's actions and to allow a review of past actions if the administrator seems to overstep their duties or if the system becomes misconfigured for unknown reasons. These requirements do not make it necessary to audit TTY output as well. Compared to an user-space keylogger, this approach records TTY input using the audit subsystem, correlated with other audit events, and it is completely transparent to the user-space application (e.g. the console ioctls still work). TTY input auditing works on a higher level than auditing all system calls within the session, which would produce an overwhelming amount of mostly useless audit events. Add an "audit_tty" attribute, inherited across fork (). Data read from TTYs by process with the attribute is sent to the audit subsystem by the kernel. The audit netlink interface is extended to allow modifying the audit_tty attribute, and to allow sending explanatory audit events from user-space (for example, a shell might send an event containing the final command, after the interactive command-line editing and history expansion is performed, which might be difficult to decipher from the TTY input alone). Because the "audit_tty" attribute is inherited across fork (), it would be set e.g. for sshd restarted within an audited session. To prevent this, the audit_tty attribute is cleared when a process with no open TTY file descriptors (e.g. after daemon startup) opens a TTY. See https://www.redhat.com/archives/linux-audit/2007-June/msg00000.html for a more detailed rationale document for an older version of this patch. [akpm@linux-foundation.org: build fix] Signed-off-by: Miloslav Trmac <mitr@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Casey Schaufler <casey@schaufler-ca.com> Cc: Steve Grubb <sgrubb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | intel-rng: undo mess made by an 80 column extremistAlan Cox2007-07-161-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The intel-rng printed a nice well formatted message when the port was disabled. Someone then came along and blindly trashed it by screwing up a trim down to 80 columns. Put it back into the right format and keep the overlong lines as the result is also MUCH easier to read in this specific case. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Michael Buesch <mb@bu3sch.de> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | undeprecate raw driverDave Jones2007-07-161-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Despite repeated attempts over the last two and half years, this driver seems somewhat persistant. Remove its deprecated status as it has existing users who may not be in a position to migrate their apps to O_DIRECT. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | remove sonypi_camera_command()Adrian Bunk2007-07-161-47/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the no longer used sonypi_camera_command(). Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Kernel utf-8 handlingJan Engelhardt2007-07-163-22/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes dead keys and copy/paste of non-ASCII characters in UTF-8 mode on Linux console. See more details about the original patch at: http://chris.heathens.co.nz/linux/utf8.html Already posted on (Oldest) http://lkml.org/lkml/2003/5/31/148 http://lkml.org/lkml/2005/12/24/69 (Recent) http://lkml.org/lkml/2006/8/7/75 [bunk@stusta.de: make drivers/char/selection.c:store_utf8() static] Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Cc: Alexander E. Patrakov <patrakov@ums.usu.ru> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: ip2, use msleep for sleepingJiri Slaby2007-07-161-43/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: n_r3964, use wait_event_interruptibleJiri Slaby2007-07-161-12/+2
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: genrtc, use wait_event_interruptibleJiri Slaby2007-07-161-17/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | genrtc, use wait_event_interruptible Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: tty_ioctl, little whitespace cleanupJiri Slaby2007-07-161-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tty_ioctl, little whitespace cleanup the point is to make while (++i < n_baud_table); clear and assign it to the do { } loop Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: tty_ioctl, use wait_event_interruptible_timeoutJiri Slaby2007-07-161-18/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | tty_ioctl, use wait_event_interruptible_timeout Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: mxser_new, fix sparse warningJiri Slaby2007-07-161-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | tty_io: Use kzallocJean Delvare2007-07-161-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Also remove needless casts. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Char: n_hdlc, allow RESTARTSYS retval of tty writeJiri Slaby2007-07-161-1/+6
| | | | | | | | | | | | | | | | | | | | | Acked-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>