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2006-04-19[PATCH] bcm43xx: fix pctl slowclock limit calculationMichael Buesch
This fixes coverity bug: http://marc.theaimsgroup.com/?l=linux-netdev&m=114417628413880&w=2 Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] bcm43xx: fix dyn tssi2dbm memleakAdrian Bunk
This patch fixes a memory leak spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] bcm43xx: fix config menu alignmentRandy Dunlap
Use "depends on" to make all bcm43xx driver options be listed at the same level. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] bcm43xx wireless: fix printk format warningsRandy Dunlap
Fix printk format warnings: drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c:456: warning: format ‘%u’ expects type ‘unsigned int’, but argument 3 has type ‘size_t’ drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c:460: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘size_t’ drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c:476: warning: format ‘%u’ expects type ‘unsigned int’, but argument 3 has type ‘size_t’ drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c:480: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘size_t’ drivers/net/wireless/bcm43xx/bcm43xx_dma.c:200: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘dma_addr_t’ drivers/net/wireless/bcm43xx/bcm43xx_dma.c:311: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘dma_addr_t’ drivers/net/wireless/bcm43xx/bcm43xx_dma.c:733: warning: format ‘%08x’ expects type ‘unsigned int’, but argument 2 has type ‘dma_addr_t’ Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac: report when scanning has finishedJohannes Berg
Make softmac report a scan event when scanning has finished, that way userspace can wait for the event to happen instead of polling for the results. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac: fix event sendingJohannes Berg
Softmac is sending custom events to userspace already, but it should _really_ be sending the right WEXT events instead. This patch fixes that. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac: handle iw_mode properlyjohannes@sipsolutions.net
Below patch allows using iw_mode auto with softmac. bcm43xx forces managed so this bug wasn't noticed earlier, but this was one of the problems why zd1211 didn't work earlier. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac: dont send out packets while scanningjohannes@sipsolutions.net
Seems we forgot to stop the queue while scanning. Better do that so we don't transmit packets all the time during background scanning. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac: return -EAGAIN from getscan while scanningjohannes@sipsolutions.net
Below patch was developed after discussion with Daniel Drake who mentioned to me that wireless tools expect an EAGAIN return from getscan so that they can wait for the scan to finish before printing out the results. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] bcm43xx: set trans_start on TX to prevent bogus timeoutsMichael Buesch
Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] orinoco: fix truncating commsquality RID with the latest Symbol firmwarePavel Roskin
Symbol firmware F3.91-71 has an additional word in the commsquality RID. Extend the receiving buffer by one word to accomodate it. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac: fix spinlock recursion on reassocMichael Buesch
This fixes a spinlock recursion on receiving a reassoc request. On reassoc, the softmac calls back into the driver. This results in a driver lock recursion. This schedules the assoc workqueue, instead of calling it directly. Probably, we should defer the _whole_ management frame processing to a tasklet or workqueue, because it does several callbacks into the driver. That is dangerous. This fix should go into linus's tree, before 2.6.17 is released, because it is remote exploitable (DoS by crash). Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] Revert NET_RADIO Kconfig title changeJean Tourrilhes
2.6.17-rc1 changed the title for the entry CONFIG_NET_RADIO. I personally disagree with this change and want it reverted. Patch for 2.6.17-rc1. Rationale : WIRELESS_EXT is an invisible option. Therefore, the only way for a user to enable it is via NET_RADIO. Some users need to do that for out-of-tree drivers. Therefore it should be mentionned in the title of the option. Rationale2 : the option just below is called "Wireless Extension API over RtNetlink". Some users may confuse this option for the main "Wireless Extension" option. Therefore reverting this change help disambiguate the relation between those two options. Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] wext: Fix IWENCODEEXT security permissionsJean Tourrilhes
Check the permissions when user-space try to read the encryption parameters via SIOCGIWENCODEEXT. This is trivial and probably should go in 2.6.17... Bug was found by Brian Eaton <eaton.lists@gmail.com>, thanks ! Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] wireless/atmel: send WEXT scan completion eventsDan Williams
Send scan completion events to user space when a scan completes. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] wireless/airo: clean up WEXT association and scan eventsDan Williams
Airo firmware versions >= 5.30.17 send re-association events to the driver that are currently unrecognized, causing spurious disassociation events to be sent to user space. Loss of sync due to scan requests also results in disassociation events sent to user space. This patch traps those two events; suppressing sync-loss on scan, and sending the correct association event on re-association notifications. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19[PATCH] softmac uses Wiress Ext.Randy Dunlap
softmac uses wireless extensions, so let it SELECT that config option; WARNING: "wireless_send_event" [net/ieee80211/softmac/ieee80211softmac.ko] undefined! Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-19Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: fixup writeout path after ->map changes [PATCH] splice: offset fixes [PATCH] tee: link_pipe() must be careful when dropping one of the pipe locks [PATCH] splice: cleanup the SPLICE_F_NONBLOCK handling [PATCH] splice: close i_size truncate races on read
2006-04-19[PATCH] fbdev: Fix return error of fb_writeAntonino A. Daplas
Fix return code of fb_write(): If at least 1 byte was transferred to the device, return number of bytes, otherwise: - return -EFBIG - if file offset is past the maximum allowable offset or size is greater than framebuffer length - return -ENOSPC - if size is greater than framebuffer length - offset Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] savagefb: fix section mismatch warningsRandy Dunlap
Fix modpost section mismatch warnings in savagefb driver: WARNING: drivers/video/savage/savagefb.o - Section mismatch: reference to .init.text: from .exit.text after 'savagefb_remove' (at offset 0x66) WARNING: drivers/video/savage/savagefb.o - Section mismatch: reference to .init.text: from .exit.text after 'savagefb_remove' (at offset 0x6e) WARNING: drivers/video/savage/savagefb.o - Section mismatch: reference to .init.text: from .text.savagefb_resume after 'savagefb_resume' (at offset 0x70) Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] radeonfb section mismatchesRandy Dunlap
Marking radeon_pci_register() as __devinit clears up all section mismatch warnings that are caused by radeon_pci_register() calling various __devinit function. Is there some reason not to do this? WARNING: drivers/video/aty/radeonfb.o - Section mismatch: reference to .init.text: from .text.radeonfb_pci_register after 'radeonfb_pci_register' (at offset 0x628) WARNING: drivers/video/aty/radeonfb.o - Section mismatch: reference to .init.text: from .text.radeonfb_pci_register after 'radeonfb_pci_register' (at offset 0x6b5) WARNING: drivers/video/aty/radeonfb.o - Section mismatch: reference to .init.text: from .text.radeonfb_pci_register after 'radeonfb_pci_register' (at offset 0x6bd) WARNING: drivers/video/aty/radeonfb.o - Section mismatch: reference to .init.text:radeon_probe_screens from .text.radeonfb_pci_register after 'radeonfb_pci_register' (at offset 0x7d6) WARNING: drivers/video/aty/radeonfb.o - Section mismatch: reference to .init.text:radeon_check_modes from .text.radeonfb_pci_register after 'radeonfb_pci_register' (at offset 0x7e5) Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] fb: Fix section mismatch in savagefbJean Delvare
Fix the following section mismatch: WARNING: drivers/video/savage/savagefb.o - Section mismatch: reference to .init.data: from .text.savagefb_probe after 'savagefb_probe' (at offset 0x5e2) Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] alim15x3: ULI M-1573 south Bridge supportKAI.HSU
From http://bugzilla.kernel.org/show_bug.cgi?id=6358 The alim15x3.c havn't been update for 3 years. Recently when we use this "ULI M1573" south bridge chip found that can't mount CDROM(VCD) smoothly, must waiting for a long time. After I check the "ULI M1573" south bridge datasheet, I found the reason. The reason is the "ULI M1573" version in the Linux is "0xC7" not "0xC4" anymore So I was modified the source than it was successed. Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] remove the obsolete IDEPCI_FLAG_FORCE_PDCAdrian Bunk
Noted by Sergei Shtylylov <sshtylyov@ru.mvista.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] ide: ATI SB600 IDE supportAnatoli Antonovitch
Add support for the IDE device on ATI SB600 Signed-off-by: Felix Kuehling <fkuehlin@ati.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Switch Kprobes inline functions to __kprobes for sparc64Prasanna S Panchamukhi
Andrew Morton pointed out that compiler might not inline the functions marked for inline in kprobes. There-by allowing the insertion of probes on these kprobes routines, which might cause recursion. This patch removes all such inline and adds them to kprobes section there by disallowing probes on all such routines. Some of the routines can even still be inlined, since these routines gets executed after the kprobes had done necessay setup for reentrancy. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Switch Kprobes inline functions to __kprobes for ia64Prasanna S Panchamukhi
Andrew Morton pointed out that compiler might not inline the functions marked for inline in kprobes. There-by allowing the insertion of probes on these kprobes routines, which might cause recursion. This patch removes all such inline and adds them to kprobes section there by disallowing probes on all such routines. Some of the routines can even still be inlined, since these routines gets executed after the kprobes had done necessay setup for reentrancy. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Switch Kprobes inline functions to __kprobes for ppc64Prasanna S Panchamukhi
Andrew Morton pointed out that compiler might not inline the functions marked for inline in kprobes. There-by allowing the insertion of probes on these kprobes routines, which might cause recursion. This patch removes all such inline and adds them to kprobes section there by disallowing probes on all such routines. Some of the routines can even still be inlined, since these routines gets executed after the kprobes had done necessay setup for reentrancy. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Switch Kprobes inline functions to __kprobes for x86_64Prasanna S Panchamukhi
Andrew Morton pointed out that compiler might not inline the functions marked for inline in kprobes. There-by allowing the insertion of probes on these kprobes routines, which might cause recursion. This patch removes all such inline and adds them to kprobes section there by disallowing probes on all such routines. Some of the routines can even still be inlined, since these routines gets executed after the kprobes had done necessay setup for reentrancy. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Switch Kprobes inline functions to __kprobes for i386Prasanna S Panchamukhi
Andrew Morton pointed out that compiler might not inline the functions marked for inline in kprobes. There-by allowing the insertion of probes on these kprobes routines, which might cause recursion. This patch removes all such inline and adds them to kprobes section there by disallowing probes on all such routines. Some of the routines can even still be inlined, since these routines gets executed after the kprobes had done necessay setup for reentrancy. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] pnp: fix two messages in manager.cJan Engelhardt
The wording of two messages in drivers/pnp/manager.c is incorrect. Fix that. Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] parport_pc: fix section mismatch warnings (v2)Randy.Dunlap
From: Randy Dunlap <rdunlap@xenotime.net> Fix all modpost section mismatch warnings in parport_pc: WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.text: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x230) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.text: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x283) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.text: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x3e6) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.text: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x400) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.text: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x463) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.text: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x488) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data:superios from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x54c) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data: from .text.parport_pc_probe_port after 'parport_pc_probe_port' (at offset 0x56a) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data: from .text.parport_pc_pci_probe after 'parport_pc_pci_probe' (at offset 0x67) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data: from .text.parport_pc_pci_probe after 'parport_pc_pci_probe' (at offset 0x9f) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data: from .text.parport_pc_pci_probe after 'parport_pc_pci_probe' (at offset 0xa7) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data:cards from .text.parport_pc_pci_probe after 'parport_pc_pci_probe' (at offset 0x132) WARNING: drivers/parport/parport_pc.o - Section mismatch: reference to .init.data: from .text.parport_pc_pci_probe after 'parport_pc_pci_probe' (at offset 0x142) Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Open IPMI BT overflowHeikki Orsila
I was looking into random driver code and found a suspicious looking memcpy() in drivers/char/ipmi/ipmi_bt_sm.c on 2.6.17-rc1: if ((size < 2) || (size > IPMI_MAX_MSG_LENGTH)) return -1; ... memcpy(bt->write_data + 3, data + 1, size - 1); where sizeof bt->write_data is IPMI_MAX_MSG_LENGTH. It looks like the memcpy would overflow by 2 bytes if size == IPMI_MAX_MSG_LENGTH. A patch attached to limit size to (IPMI_MAX_LENGTH - 2). Cc: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Fix potential NULL pointer deref in gen_init_cpioJesper Juhl
Fix potential NULL pointer deref in gen_init_cpio.c spotted by coverity checker. This fixes coverity bug #86 Without this patch we risk dereferencing a NULL `type' in the "if ('\n' == *type) {" line. 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>
2006-04-19[PATCH] config: update usage/help infoRandy Dunlap
Replace outdated help message with a reference to README. Update README for make *config variants and environment variable info. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] IPMI: fix devinit placementRandy Dunlap
gcc complains about __devinit in the wrong location: drivers/char/ipmi/ipmi_si_intf.c:2205: warning: '__section__' attribute does not apply to types Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Doc: vm/hugetlbpage update-2Randy Dunlap
Add new line of /proc/meminfo output. Explain the HugePage_ lines in /proc/meminfo (from Bill Irwin). Change KB to kB since the latter is what is used in the kernel. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] apm: fix Armada laptops againSamuel Thibault
Fix the "apm: set display: Interface not engaged" error on Armada laptops again. Jordan said: I think this is fine. It seems to me that this may be the fault of one or both of the APM solutions handling this situation in a non-standard way, but since APM is used very little on the Geode, and I have direct access to our BIOS folks, if this problem comes up with a customer again, we'll solve it from the firmware. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: "Jordan Crouse" <jordan.crouse@amd.com> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] voyager: no need to define BITS_PER_BYTE when it's already in types.hJesper Juhl
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Kconfig.debug: Set DEBUG_MUTEX to off by defaultTim Chen
DEBUG_MUTEX flag is on by default in current kernel configuration. During performance testing, we saw mutex debug functions like mutex_debug_check_no_locks_freed (called by kfree()) is expensive as it goes through a global list of memory areas with mutex lock and do the checking. For benchmarks such as Volanomark and Hackbench, we have seen more than 40% drop in performance on some platforms. We suggest to set DEBUG_MUTEX off by default. Or at least do that later when we feel that the mutex changes in the current code have stabilized. Signed-off-by: Tim Chen <tim.c.chen@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] Fix file lookup without refDipankar Sarma
There are places in the kernel where we look up files in fd tables and access the file structure without holding refereces to the file. So, we need special care to avoid the race between looking up files in the fd table and tearing down of the file in another CPU. Otherwise, one might see a NULL f_dentry or such torn down version of the file. This patch fixes those special places where such a race may happen. Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com> Acked-by: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] uml: add missing __volatile__Jeff Dike
We were missing __volatile__ on some bits of asm in the segfault handlers. On x86_64, this was messing up the move from %rdx to uc because that was moved to after the GET_FAULTINFO_FROM_SC, which changed %rdx. Also changed the other bit of asm and the one in the i386 handler to prevent any similar occurrences. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] uml: physical memory map file fixesRob Landley
UML really wants shared memory semantics form its physical memory map file, and the place for that is /dev/shm. So move the default, and fix the error messages to recognize that this value can be overridden. Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] uml: __user annotationsAl Viro
bits of uml __user annotations lost in merge Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] uml: change sigjmp_buf to jmp_bufJeff Dike
Clean up the jmpbuf code. Since softints, we no longer use sig_setjmp, so the UML_SIGSETJMP wrapper now has a misleading name. Also, I forgot to change the buffers from sigjmp_buf to jmp_buf. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] m32r: update switch_to macro for tuningHirokazu Takata
- Remove unnecessary push/pop's of the switch_to() macro for performance tuning. - Cosmetic updates: change __inline__ to inline, etc. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Cc: NIIBE Yutaka <gniibe@fsij.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] m32r: Remove a warning in m32r_sio.cHirokazu Takata
/project/m32r-linux/kernel/linux-2.6.17-rc1-mm2/linux-2.6.17-rc1-mm2/drivers/serial/m32r_sio.c: In function 'm32r_sio_console_write': /project/m32r-linux/kernel/linux-2.6.17-rc1-mm2/linux-2.6.17-rc1-mm2/drivers/serial/m32r_sio.c:1060: warning: unused variable 'i' Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] m32r: mappi3 reboot supportHirokazu Takata
Here is a patch to support a reboot function for M3A-2170(Mappi-III) evaluation board. Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] m32r: update include/asm-m32r/semaphore.hHirokazu Takata
This patch updates include/asm-m32r/semaphore.h for good readability and maintainability. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] m32r: Fix pt_regs for !COFNIG_ISA_DSP_LEVEL2 targetHirokazu Takata
This modification is required to fix debugging function for m32r targets with !CONFIG_ISA_DSP_LEVEL2, by unifying 'struct pt_regs' and 'struct sigcontext' size for all M32R ISA. Some m32r processor core with !CONFIG_ISA_DSP_LEVEL2 configuration has only single accumulator a0 (ex. VDEC2 core, M32102 core, etc.), the others with CONFIG_ISA_DSP_LEVEL2 has two accumulators, a0 and a1. This means there are two variations of thread context. So far, we reduced and changed stackframe size at a syscall for their context size. However, this causes a problem that a GDB for processors with CONFIG_ISA_DSP_LEVEL2 cannot be used for processors with !CONFIG_ISA_DSP_LEVEL2. From the viewpoint of GDB support, we should reduce such variation of stackframe size for simplicity. In this patch, dummy members are added to 'struct pt_regs' and 'struct sigcontext' to adjust their size for !CONFIG_ISA_DSP_LEVEL2. This modification is also a one step for a GDB update in future. Currently, on the m32r, GDB can access process's context by using ptrace functions in a simple way of register by register access. By unifying stackframe size, we have a possibility to make use of ptrace functions of not only a single register access but also block register access, PTRACE_{GETREGS,PUTREGS}. However, for this purpose, we might have to modify stackframe structure some more; for example, PSW (processor status word) register should be pre-processed before pushing to stack at a syscall, and so on. In this case, we must update carefully both kernel and GDB at a time... Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Cc: Kei Sakamoto <ksakamot@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>