- 22 5月, 2006 40 次提交
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由 Andrew Morton 提交于
WARNING: sound/oss/ad1848.o - Section mismatch: reference to .init.data:ad1848_isapnp_list from .text between 'ad1848_init_generic' (at offset 0x46f0) and 'kmalloc' WARNING: sound/oss/ad1848.o - Section mismatch: reference to .init.data:ad1848_isapnp_list from .text between 'ad1848_init_generic' (at offset 0x46f8) and 'kmalloc' WARNING: sound/oss/ad1848.o - Section mismatch: reference to .init.data:ad1848_isapnp_list from .text between 'ad1848_init_generic' (at offset 0x4818) and 'kmalloc' Also, sound/oss/ad1848.c: In function `ad1848_init': sound/oss/ad1848.c:2029: warning: cast to pointer from integer of different size sound/oss/ad1848.c: In function `ad1848_unload': sound/oss/ad1848.c:2178: warning: cast to pointer from integer of different size sound/oss/ad1848.c: In function `adintr': sound/oss/ad1848.c:2207: warning: cast from pointer to integer of different size Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
WARNING: sound/oss/nm256_audio.o - Section mismatch: reference to .init.text:nm256_peek_for_sig from .text between 'nm256_install' (at offset 0x3ba4) and 'nm256_probe' WARNING: sound/oss/nm256_audio.o - Section mismatch: reference to .init.text:nm256_peek_for_sig from .text between 'nm256_install' (at offset 0x3bac) and 'nm256_probe' WARNING: sound/oss/nm256_audio.o - Section mismatch: reference to .init.text: from .text between 'nm256_install' (at offset 0x3dcc) and 'nm256_probe' WARNING: sound/oss/nm256_audio.o - Section mismatch: reference to .init.text: from .text between 'nm256_install' (at offset 0x3dd0) and 'nm256_probe' Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
sound/isa/es18xx.c: In function `snd_es18xx_identify': sound/isa/es18xx.c:1606: warning: implicit declaration of function `udelay' Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
WARNING: sound/drivers/mpu401/snd-mpu401.o - Section mismatch: reference to .init.text: from .text between 'snd_mpu401_pnp_probe' (at offset 0x1f7) and 'snd_mpu401_pnp_remove' Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_fix_offsets' (at offset 0x1b88) and 'i810_alloc_agp_mem' WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_fix_offsets' (at offset 0x1b8f) and 'i810_alloc_agp_mem' WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_fix_offsets' (at offset 0x1ba3) and 'i810_alloc_agp_mem' WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_fix_offsets' (at offset 0x1bb5) and 'i810_alloc_agp_mem' WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_fix_offsets' (at offset 0x1bc6) and 'i810_alloc_agp_mem' WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_init_defaults' (at offset 0x1dd8) and 'i810_init_device' WARNING: drivers/video/i810/i810fb.o - Section mismatch: reference to .init.data: from .text between 'i810_init_defaults' (at offset 0x1dfb) and 'i810_init_device' Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
WARNING: drivers/pcmcia/pd6729.o - Section mismatch: reference to .init.text: from .text between 'pd6729_pci_probe' (at offset 0x9a8) and 'pd6729_pci_remove' Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bob Picco 提交于
Andy added code to buddy allocator which does not require the zone's endpoints to be aligned to MAX_ORDER. An issue is that the buddy allocator requires the node_mem_map's endpoints to be MAX_ORDER aligned. Otherwise __page_find_buddy could compute a buddy not in node_mem_map for partial MAX_ORDER regions at zone's endpoints. page_is_buddy will detect that these pages at endpoints are not PG_buddy (they were zeroed out by bootmem allocator and not part of zone). Of course the negative here is we could waste a little memory but the positive is eliminating all the old checks for zone boundary conditions. SPARSEMEM won't encounter this issue because of MAX_ORDER size constraint when SPARSEMEM is configured. ia64 VIRTUAL_MEM_MAP doesn't need the logic either because the holes and endpoints are handled differently. This leaves checking alloc_remap and other arches which privately allocate for node_mem_map. Signed-off-by: NBob Picco <bob.picco@hp.com> Acked-by: NMel Gorman <mel@csn.ul.ie> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Greg Kroah-Hartman 提交于
People don't like released kernels yelling at them, no matter how real the error might be. So only report it if CONFIG_KOBJECT_DEBUG is enabled. Sent on request of Andrew Morton. (akpm: should bring this back post-2.6.17) Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Alessandro Zummo 提交于
Appropriately use -ENOIOCTLCMD and -ENOTTY when the ioctl is not implemented by a driver. (akpm: we're not allowed to return -ENOIOCTLCMD to userspace. This patch does the right thing). Signed-off-by: NAlessandro Zummo <a.zummo@towertech.it> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Atsushi Nemoto 提交于
Here is an updated r_info layout fix. Please apply "check SHT_REL sections" patch before this. 64bit mips has different r_info layout. This patch fixes modpost segfault for 64bit little endian mips kernel. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Atsushi Nemoto 提交于
I found that modpost can not detect section mismatch on mips and i386. On mips64, the modpost (with r_info layout fix) can detect it. The current modpst only checks SHT_RELA section but I suppose SHT_REL section should be checked also. This patch does not contain r_info layout fix. I'll post an updated r_info layout fix on next mail. Check SHT_REL sections as like as SHT_RELA sections to detect section mismatch. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Martin Schwidefsky 提交于
The 32 bit unsigned substraction (next - jiffies) in stop_hz_timer can overflow if jiffies gets advanced between next_timer_interrupt and the read under the xtime lock. The cast to a u64 then results in a large value which causes the cpu to wait too long. Fix this by casting next and jiffies independently to u64 before subtracting them. (Spotted by Zachary Amsden <zach@vmware.com>) Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Zachary Amsden 提交于
Under certain timing conditions, a race during boot occurs where timer ticks are being processed on remote CPUs. The remote timer ticks can increment jiffies, and if this happens during a window when a timeout is very close to expiring but a local tick has not yet been delivered, you can end up with 1) No softirq pending 2) A local timer wheel which is not synced to jiffies 3) No high resolution timer active 4) A local timer which is supposed to fire before the current jiffies value. In this circumstance, the comparison in next_timer_interrupt overflows, because the base of the comparison for high resolution timers is jiffies, but for the softirq timer wheel, it is relative the the current base of the wheel (jiffies_base). Signed-off-by: NZachary Amsden <zach@vmware.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Rene Herman 提交于
st: Version 20050830, fixed bufsize 32768, s/g segs 256 st 0:0:6:0: Attached scsi tape st0<4>st0: try direct i/o: yes (alignment 512 B) Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Satoshi Oshima 提交于
Problem: If we put a probe onto a callq instruction and the probe is executed, kernel panic of Bad RIP value occurs. Root cause: If resume_execution() found 0xff at first byte of p->ainsn.insn, it must check the _second_ byte. But current resume_execution check _first_ byte again. I changed it checks second byte of p->ainsn.insn. Kprobes on i386 don't have this problem, because the implementation is a little bit different from x86_64. Cc: Andi Kleen <ak@muc.de> Signed-off-by: NSatoshi Oshima <soshima@redhat.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Vivek Goyal 提交于
o Kdump second kernel boot fails after a system crash if second kernel is UP and acpi=off and if crash occurred on a non-boot cpu. o Issue here is that MP tables report boot cpu lapic id as 0 but second kernel is booting on a different processor and MP table data is stale in this context. Hence apic_id_registered() check fails in setup_local_APIC() when called from APIC_init_uniprocessor(). o Problem is not seen if ACPI is enabled as in that case boot_cpu_physical_apicid is read from the LAPIC. o Problem is not seen with SMP kernels as well because in this case also boot_cpu_physical_apicid is read from LAPIC. (smp_boot_cpus()). o The problem is fixed by reading boot_cpu_physical_apicid from LAPIC if it is a UP kernel and CRASH_DUMP is enabled. Signed-off-by: NVivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Stephen Street 提交于
Fix some outstanding issues with the pxa2xx_spi driver when running on a PXA270: - Wrong timeout calculation in the setup function due to different peripheral clock rates in the PXAxxx family. - Bad handling of SSSR_TFS interrupts in interrupt_transfer function. - Added locking to interface between the pump_messages workqueue and the pump_transfers tasklet. Much thanks to Juergen Beisert for the extensive testing on the PXA270. Signed-off-by: NStephen Street <stephen@streetfiresound.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Ben Dooks 提交于
Hardware based SPI driver for Samsung S3C24XX SoC systems Signed-off-by: NBen Dooks <ben-linux@fluff.org> Cc: David Brownell <david-b@pacbell.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Ben Dooks 提交于
SPI driver for SPI by GPIO on the Samsung S3C24XX series of SoC processors. Signed-off-by: NBen Dooks <ben-linux@fluff.org> Cc: Greg KH <greg@kroah.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Adrian Bunk 提交于
- remove the following global function that is both unused and unimplemented: - register_firmware() - make the following needlessly global function static: - firmware_class_uevent() Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Kumar Gala 提交于
This driver supports the SPI controller on the MPC83xx SoC devices from Freescale. Note, this driver supports only the simple shift register SPI controller and not the descriptor based CPM or QUICCEngine SPI controller. Signed-off-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 dmitry pervushin 提交于
Because several developers asked me about referenced but missing spi_add_master(), I think that this patch should be applied ... it corrects comments so they refer to spi_register_master() instead. Signed-off-by: Ndmitry pervushin <dpervushin@ru.mvista.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Theodore Tso 提交于
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Eric Sesterhenn 提交于
This fixes coverity bug id #1237. After the while loop, it is possible for i == ISDN_LMSNLEN. If this happens the terminating '\0' is written after the end of the array. Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de> Cc: Karsten Keil <kkeil@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Paul Jackson 提交于
It's too easy to incorrectly call cpuset_zone_allowed() in an atomic context without __GFP_HARDWALL set, and when done, it is not noticed until a tight memory situation forces allocations to be tried outside the current cpuset. Add a 'might_sleep_if()' check, to catch this earlier on, instead of waiting for a similar check in the mutex_lock() code, which is only rarely invoked. Signed-off-by: NPaul Jackson <pj@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Paul Jackson 提交于
Update the kernel/cpuset.c:cpuset_zone_allowed() comment. The rule for when mm/page_alloc.c should call cpuset_zone_allowed() was intended to be: Don't call cpuset_zone_allowed() if you can't sleep, unless you pass in the __GFP_HARDWALL flag set in gfp_flag, which disables the code that might scan up ancestor cpusets and sleep. The explanation of this rule in the comment above cpuset_zone_allowed() was stale, as a result of a restructuring of some __alloc_pages() code in November 2005. Rewrite that comment ... Signed-off-by: NPaul Jackson <pj@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Paul Jackson 提交于
Fix a couple of infrequently encountered 'sleeping function called from invalid context' in the cpuset hooks in __alloc_pages. Could sleep while interrupts disabled. The routine cpuset_zone_allowed() is called by code in mm/page_alloc.c __alloc_pages() to determine if a zone is allowed in the current tasks cpuset. This routine can sleep, for certain GFP_KERNEL allocations, if the zone is on a memory node not allowed in the current cpuset, but might be allowed in a parent cpuset. But we can't sleep in __alloc_pages() if in interrupt, nor if called for a GFP_ATOMIC request (__GFP_WAIT not set in gfp_flags). The rule was intended to be: Don't call cpuset_zone_allowed() if you can't sleep, unless you pass in the __GFP_HARDWALL flag set in gfp_flag, which disables the code that might scan up ancestor cpusets and sleep. This rule was being violated in a couple of places, due to a bogus change made (by myself, pj) to __alloc_pages() as part of the November 2005 effort to cleanup its logic, and also due to a later fix to constrain which swap daemons were awoken. The bogus change can be seen at: http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-11/4691.html [PATCH 01/05] mm fix __alloc_pages cpuset ALLOC_* flags This was first noticed on a tight memory system, in code that was disabling interrupts and doing allocation requests with __GFP_WAIT not set, which resulted in __might_sleep() writing complaints to the log "Debug: sleeping function called ...", when the code in cpuset_zone_allowed() tried to take the callback_sem cpuset semaphore. We haven't seen a system hang on this 'might_sleep' yet, but we are at decent risk of seeing it fairly soon, especially since the additional cpuset_zone_allowed() check was added, conditioning wakeup_kswapd(), in March 2006. Special thanks to Dave Chinner, for figuring this out, and a tip of the hat to Nick Piggin who warned me of this back in Nov 2005, before I was ready to listen. Signed-off-by: NPaul Jackson <pj@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Kristen Accardi 提交于
The OSC set and query functions do not allocate enough space for return values, and set the output buffer length to a false, too large value. This causes the acpi-ca code to assume that the output buffer is larger than it actually is, and overwrite memory when copying acpi return buffers into this caller provided buffer. In some cases this can cause kernel oops if the memory that is overwritten is a pointer. This patch will change these calls to use a dynamically allocated output buffer, thus allowing the acpi-ca code to decide how much space is needed. Signed-off-by: NKristen Carlson Accardi <kristen.c.accardi@intel.com> Cc: "Brown, Len" <len.brown@intel.com> Cc: "Yu, Luming" <luming.yu@intel.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Amy Griffis 提交于
Don't reassign to watch. If idr_find() returns NULL, then put_inotify_watch() will choke. Signed-off-by: NAmy Griffis <amy.griffis@hp.com> Cc: John McCutchan <john@johnmccutchan.com> Cc: Robert Love <rlove@rlove.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Amy Griffis 提交于
While doing some inotify stress testing, I hit the following race. In inotify_release(), it's possible for a watch to be removed from the lists in between dropping dev->mutex and taking inode->inotify_mutex. The reference we hold prevents the watch from being freed, but not from being removed. Checking the dev's idr mapping will prevent a double list_del of the same watch. Signed-off-by: NAmy Griffis <amy.griffis@hp.com> Acked-by: NJohn McCutchan <john@johnmccutchan.com> Cc: Robert Love <rml@novell.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Mike Kravetz 提交于
A bad calculation/loop in __section_nr() could result in incorrect section information being put into sysfs memory entries. This primarily impacts memory add operations as the sysfs information is used while onlining new memory. Fix suggested by Dave Hansen. Note that the bug may not be obvious from the patch. It actually occurs in the function's return statement: return (root_nr * SECTIONS_PER_ROOT) + (ms - root); In the existing code, root_nr has already been multiplied by SECTIONS_PER_ROOT. Signed-off-by: NMike Kravetz <kravetz@us.ibm.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 KAMEZAWA Hiroyuki 提交于
typo in #ifdefs. Fixes http://bugme.osdl.org/show_bug.cgi?id=6538Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Alexey Dobriyan 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Cc: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: NJames Morris <jmorris@namei.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andrew Morton 提交于
Bernd Schmidt points out that binfmt_flat is now leaving the exec file open while the application runs. This offsets all the application's fd numbers. We should have closed the file within exec(), not at exit()-time. But there doesn't seem to be a lot of point in doing all this just to avoid going over RLIMIT_NOFILE by one fd for a few microseconds. So take the EMFILE checking out again. This will cause binfmt_flat to again fail LTP's exec-should-return-EMFILE-when-fdtable-is-full test. That test appears to be wrong anyway - Open Group specs say nothing about exec() returning EMFILE. Cc: Bernd Schmidt <bernd.schmidt@analog.com> Cc: Greg Ungerer <gerg@uclinux.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Micon, David 提交于
Make a read of a HID device block until data is available. Without it, the read goes into a busy-wait loop until data is available. Cc: Greg KH <greg@kroah.com> Acked-by: NVojtech Pavlik <vojtech@suse.cz> Cc: Dmitry Torokhov <dtor_core@ameritech.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Florin Malita 提交于
Assigning the result of posix_acl_to_xattr() to an unsigned data type (size/size_t) obscures possible errors. Coverity CID: 1206. Signed-off-by: NFlorin Malita <fmalita@gmail.com> Acked-by: NNeilBrown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 NeilBrown 提交于
We should be able to write 'repair' to /sys/block/mdX/md/sync_action, however due to and inverted test, that always given EINVAL. Signed-off-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Peter Staubach 提交于
Address a problem found when a Linux NFS server uses the "subtree_check" export option. The "subtree_check" NFS export option was designed to prohibit a client from using a file handle for which it should not have permission. The algorithm used is to ensure that the entire path to the file being referenced is accessible to the user attempting to use the file handle. If some part of the path is not accessible, then the operation is aborted and the appropriate version of ESTALE is returned to the NFS client. The error, ESTALE, is unfortunate in that it causes NFS clients to make certain assumptions about the continued existence of the file. They assume that the file no longer exists and refuse to attempt to access it again. In this case, the file really does exist, but access was denied by the server for a particular user. A better error to return would be an EACCES sort of error. This would inform the client that the particular operation that it was attempting was not allowed, without the nasty side effects of the ESTALE error. Signed-off-by: NPeter Staubach <staubach@redhat.com> Acked-By: NNeilBrown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Vivek Goyal 提交于
Update MAINTAINERS file for info regarding kdump maintainership. Signed-off-by: NVivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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