- 18 10月, 2007 26 次提交
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由 Ingo Molnar 提交于
if CONFIG_PAGEALLOC is enabled then X86_FEATURE_PSE is disabled and all the kernel physical RAM pagetables are set up as 4K pages. This is needed so that CONFIG_PAGEALLOC can do finegrained mapping and unmapping of pages. as a side-effect though, the total size of memory allocated as kernel pagetables increases significantly. All these pagetables are allocated via alloc_bootmem_low_pages(), straight out of the lowmem DMA pool. If the system has enough RAM and a large kernel image then almost all of the 16 MB lowmem DMA pool is allocated to the image and to pagetables - leaving no space for __GFP_DMA allocations. this results in drivers failing and the bootup hanging: swapper invoked oom-killer: gfp_mask=0x80d1, order=0, oomkilladj=0 [<4015059f>] out_of_memory+0x17f/0x1c0 [<40151f3c>] __alloc_pages+0x37c/0x3a0 [<40168cd7>] slob_new_page+0x37/0x50 [<40168dff>] slob_alloc+0x10f/0x190 [<40169010>] __kmalloc_node+0x80/0x90 [<405a17e3>] scsi_host_alloc+0x33/0x2c0 [<405a1a82>] scsi_register+0x12/0x60 [<40d5889e>] aha1542_detect+0x9e/0x940 [<405c5ba5>] ultrastor_detect+0x265/0x5f0 [<401352f5>] getnstimeofday+0x35/0xf0 [<40d58751>] init_this_scsi_driver+0x41/0xf0 [<40d0b856>] kernel_init+0x136/0x310 [<40d58710>] init_this_scsi_driver+0x0/0xf0 [<40d0b720>] kernel_init+0x0/0x310 [<40105547>] kernel_thread_helper+0x7/0x10 ======================= the fix is to first allocate from above the DMA pool, and if that fails (for example due to it being a machine with less than 16 MB of RAM), allocate from the DMA pool as a fallback. With this fix applied i was able to boot a PAGEALLOC=y kernel that would hang before. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ingo Molnar 提交于
To preserve the DMA pool in CONFIG_DEBUG_PAGEALLOC=y kernels, we'll allocate pagetables from above the 16MB DMA limit, so we'll have to set up boot pagetables to cover 16MB more RAM (worst-case). Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ingo Molnar 提交于
with this fix Geode kernels can be booted (and QA-ed) on generic PCs. otherwise it crashes and burns during early bootup: Detected 2160.212 MHz processor. general protection fault: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 0 EIP: 0060:[<c09071f6>] Not tainted VLI EFLAGS: 00010002 (2.6.23-rc9 #90) EIP is at tsc_init+0xa6/0x150 eax: 00000001 ebx: c1dce000 ecx: 00001900 edx: 00000001 esi: 00051000 edi: 00051000 ebp: c08fdfc4 esp: c08fdfa4 ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068 Process swapper (pid: 0, ti=c08fc000 task=c082a180 task.ti=c08fc000) Stack: c076b870 00000870 000000d4 0000001d c0831e80 c1dce000 00051000 00051000 c08fdfcc c09053f8 c08fdff8 c09045ff 000001e2 c09040a0 00051000 00000020 0004e500 c0932140 00020800 00099800 c08ed000 01409007 00000000 Call Trace: [<c010517a>] show_trace_log_lvl+0x1a/0x30 [<c0105246>] show_stack_log_lvl+0xb6/0x100 [<c0105732>] show_registers+0x212/0x3a0 [<c0105aa4>] die+0x104/0x220 [<c0105f5f>] do_general_protection+0x1ef/0x2b0 [<c06699f2>] error_code+0x72/0x78 [<c09053f8>] time_init+0x8/0x20 [<c09045ff>] start_kernel+0x1af/0x320 [<00000000>] 0x0 ======================= Code: 31 d2 b8 00 00 09 3d f7 35 2c 70 9b c0 a3 04 95 8f c0 e8 ce 4e 99 ff b8 e0 45 93 c0 e8 94 b1 c5 ff e8 7f 3d 80 ff b9 00 19 00 00 <0f> 32 f6 c4 01 74 07 83 25 24 ce 82 c0 fd 8b 0d 20 ce 82 c0 b8 EIP: [<c09071f6>] tsc_init+0xa6/0x150 SS:ESP 0068:c08fdfa4 Kernel panic - not syncing: Attempted to kill the idle task! Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ingo Molnar 提交于
if nosmp has been passed as a boot option, but nmi_watchdog=2 has also been enabled then keep minimal local APIC functionality around to make the watchdog work. this allowed me to debug a hard hang that would only occur with a nosmp bootup. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Andi Kleen 提交于
Since the 64bit kernel has different indexes for this TLS segments the address needs to be adjusted in the ptrace 32bit emulation. [ tglx: arch/x86 adaptation ] Reported-by: Amnon Shiloh Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Fengguang Wu 提交于
In alternative_instructions(), call free_init_pages() with irqs enabled. It fixes the warning message in smp_call_function*(), which should not be called with irqs disabled. [ 0.310000] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) [ 0.310000] CPU: L2 Cache: 512K (64 bytes/line) [ 0.310000] CPU 0/0 -> Node 0 [ 0.310000] SMP alternatives: switching to UP code [ 0.310000] Freeing SMP alternatives: 25k freed [ 0.310000] WARNING: at arch/x86_64/kernel/smp.c:397 smp_call_function_mask() [ 0.310000] [ 0.310000] Call Trace: [ 0.310000] [<ffffffff8100dbde>] dump_trace+0x3ee/0x4a0 [ 0.310000] [<ffffffff8100dcd3>] show_trace+0x43/0x70 [ 0.310000] [<ffffffff8100dd15>] dump_stack+0x15/0x20 [ 0.310000] [<ffffffff8101cd44>] smp_call_function_mask+0x94/0xa0 [ 0.310000] [<ffffffff8101d0b2>] smp_call_function+0x32/0x40 [ 0.310000] [<ffffffff8104277f>] on_each_cpu+0x1f/0x50 [ 0.310000] [<ffffffff81026eac>] global_flush_tlb+0x8c/0x110 [ 0.310000] [<ffffffff81025c85>] free_init_pages+0xe5/0xf0 [ 0.310000] [<ffffffff81549b5e>] alternative_instructions+0x7e/0x150 [ 0.310000] [<ffffffff8154a2ea>] check_bugs+0x1a/0x20 [ 0.310000] [<ffffffff81540c4a>] start_kernel+0x2da/0x380 [ 0.310000] [<ffffffff81540132>] _sinittext+0x132/0x140 [ 0.310000] [ 0.320000] ACPI: Core revision 20070126 [ 0.560000] Using local APIC timer interrupts. [ 0.590000] Detected 62.496 MHz APIC timer. [ 0.590000] Brought up 1 CPUs [ tglx: arch/x86 adaptation ] Cc: Laurent Vivier <Laurent.Vivier@bull.net> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NFengguang Wu <wfg@mail.ustc.edu.cn> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Kirill Korotaev 提交于
Some gcc versions (I checked at least 4.1.1 from RHEL5 & 4.1.2 from gentoo) can generate incorrect code with read_crX()/write_crX() functions mix up, due to cached results of read_crX(). The small app for x8664 below compiled with -O2 demonstrates this (i686 does the same thing):
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由 Andi Kleen 提交于
Previously the data from before the exec was kept in there. Zero them instead. [ tglx: arch/x86 adaptation ] Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Andrey Mirkin 提交于
Right now register edi is just cleared before calling do_exit. That is wrong because correct return value will be ignored. Value from rax should be copied to rdi instead of clearing edi. AK: changed to 32bit move because it's strictly an int [ tglx: arch/x86 adaptation ] Signed-off-by: NAndrey Mirkin <major@openvz.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Jan Beulich 提交于
One more of these issues (which were considered fixed a few releases back): other than on x86-64, i386 allows set_fixmap() to replace already present mappings. Consequently, on PAE, care must be taken to not update the high half of a pte while the low half is still holding the old value. [ tglx: arch/x86 adaptation ] Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> arch/x86/mm/pgtable_32.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
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由 Sam Ravnborg 提交于
Fix following section mismatch warning: WARNING: vmlinux.o(.text+0xc88c): Section mismatch: reference to .init.text:trap_init_f00f_bug (between 'init_intel' and 'cpuid4_cache_lookup') init_intel are __cpuint where trap_init_f00f_bug is __init. Fixed by declaring trap_init_f00f_bug __cpuinit. Moved the defintion of trap_init_f00f_bug to the sole user in init.c so the ugly prototype in intel.c could get killed. Frank van Maarseveen <frankvm@frankvm.com> supplied the .config used to reproduce the warning. [ tglx: arch/x86 adaptation ] Cc: Frank van Maarseveen <frankvm@frankvm.com> Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Satyam Sharma 提交于
Fix bugzilla #8679 WARNING: arch/i386/kernel/built-in.o(.data+0x2148): Section mismatch: reference to .init.text: (between 'thermal_throttle_cpu_notifier' and 'mtrr_mutex') comes because struct notifier_block thermal_throttle_cpu_notifier in arch/i386/kernel/cpu/mcheck/therm_throt.c goes in .data section but the notifier callback function itself has been marked __cpuinit which becomes __init == .init.text when HOTPLUG_CPU=n. The warning is bogus because the callback will never be called out if HOTPLUG_CPU=n in the first place (as one can see from kernel/cpu.c, the cpu_chain itself is __cpuinitdata :-) So, let's mark thermal_throttle_cpu_notifier as __cpuinitdata to fix the section mismatch warning. [ tglx: arch/x86 adaptation ] Signed-off-by: NSatyam Sharma <satyam@infradead.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Siddha, Suresh B 提交于
Fix get_apic_id() in mach-default, so that it uses 8 bits incase of xAPIC case and 4 bits for legacy APIC case. This fixes the i386 kernel assumption that apic id is less than 16 for xAPIC platforms with 8 cpus or less and makes the kernel boot on such platforms. [ tglx: arch/x86 adaptation ] Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: NAndi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Andrew Hastings 提交于
Fix an off-by-one error in find_next_zero_string which prevents allocating the last bit. [ tglx: arch/x86 adaptation ] Signed-off-by: Andrew Hastings <abh@cray.com> on behalf of Cray Inc. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Laurent Vivier 提交于
This patch export i386 smp_call_function_mask() with EXPORT_SYMBOL(). This function is needed by KVM to call a function on a set of CPUs. [ tglx: arch/x86 adaptation ] Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Roland McGrath 提交于
This keeps an unstripped copy of the 64bit vDSO images built before they are stripped and embedded in the kernel. The unstripped copies get installed in $(MODLIB)/vdso/ by "make install" (or you can explicitly use the subtarget "make vdso_install"). These files can be useful when they contain source-level debugging information. [ tglx: arch/x86 adaptation ] Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Roland McGrath 提交于
This keeps an unstripped copy of the vDSO images built before they are stripped and embedded in the kernel. The unstripped copies get installed in $(MODLIB)/vdso/ by "make install" (or you can explicitly use the subtarget "make vdso_install"). These files can be useful when they contain source-level debugging information. [ tglx: arch/x86 adaptation ] Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Adrian Bunk 提交于
WARNING: arch/i386/kernel/built-in.o(.text+0xf201): Section mismatch: reference to .init.data:trampoline_end (between 'setup_trampoline' and 'cpu_coregroup_map') WARNING: arch/i386/kernel/built-in.o(.text+0xf207): Section mismatch: reference to .init.data:trampoline_data (between 'setup_trampoline' and 'cpu_coregroup_map') WARNING: arch/i386/kernel/built-in.o(.text+0xf21a): Section mismatch: reference to .init.data:trampoline_data (between 'setup_trampoline' and 'cpu_coregroup_map') Harmless but annoying warnings present when building an i386 SMP kernel with CONFIG_HOTPLUG_CPU=n and gcc < 4.0 . [ tglx: arch/x86 adaptation ] Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Andrew Morton 提交于
Use the correct #define in the declaration of apicid_to_node[], to match the definition. [ tglx: arch/x86 adaptation ] Cc: Andi Kleen <ak@suse.de> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Stephane Eranian 提交于
Oprofile: call model->shutdown() only once to avoid calling release_ev*() multiple times [ tglx: arch/x86 adaptation ] Signed-off-by: NStephane Eranian <eranian@hpl.hp.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Doh, I completely missed that devices marked DUMMY are not running the set_mode function. So we force broadcasting, but we keep the local APIC timer running. Let the clock event layer mark the device _after_ switching it off. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: sched: fix new task startup crash sched: fix !SYSFS build breakage sched: fix improper load balance across sched domain sched: more robust sd-sysctl entry freeing
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git://git.kernel.dk/data/git/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: [SCSI] Remove full sg table memset() [SCSI] ide-scsi: remove usage of sg_last() Fix loop terminating conditions in fill_sg(). [BLOCK] Clear sg entry before filling in blk_rq_map_sg() IA64: iommu uses sg_next with an invalid sg element cciss: disable DMA refetch on Smart Array P600 swiotlb: fix map_sg failure handling SPARC64: fix iommu sg chaining [SCSI] ide-scsi: use scsi_sg_count() instead of ->use_sg
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (24 commits) [POWERPC] Fix vmemmap warning in init_64.c [POWERPC] Fix 64 bits vDSO DWARF info for CR register [POWERPC] Add 1TB workaround for PA6T [POWERPC] Enable NO_HZ and high res timers for pseries and ppc64 configs [POWERPC] Quieten cache information at boot [POWERPC] Quieten clockevent printk [POWERPC] Enable SLUB in *_defconfig [POWERPC] Fix 1TB segment detection [POWERPC] Fix iSeries_hpte_insert prototype [POWERPC] Fix copyright symbol [POWERPC] ibmebus: Move to of_device and of_platform_driver, match eHCA and eHEA drivers [POWERPC] ibmebus: Add device creation and bus probing based on of_device [POWERPC] ibmebus: Remove bus match/probe/remove functions [POWERPC] Move of_device allocation into of_device.[ch] [POWERPC] mpc52xx: device tree changes for FEC and MDIO [POWERPC] bestcomm: GenBD task support [POWERPC] bestcomm: FEC task support [POWERPC] bestcomm: ATA task support [POWERPC] bestcomm: core bestcomm support for Freescale MPC5200 [POWERPC] mpc52xx: Update mpc52xx_psc structure with B revision changes ...
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git://oss.sgi.com:8090/xfs/xfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (59 commits) [XFS] eagerly remove vmap mappings to avoid upsetting Xen [XFS] simplify validata_fields [XFS] no longer using io_vnode, as was remaining from 23 cherrypick [XFS] Remove STATIC which was missing from prior manual merge [XFS] Put back the QUEUE_ORDERED_NONE test in the barrier check. [XFS] Turn off XBF_ASYNC flag before re-reading superblock. [XFS] avoid race in sync_inodes() that can fail to write out all dirty data [XFS] This fix prevents bulkstat from spinning in an infinite loop. [XFS] simplify xfs_create/mknod/symlink prototype [XFS] avoid xfs_getattr in XFS_IOC_FSGETXATTR ioctl [XFS] get_bulkall() could return incorrect inode state [XFS] Kill unused IOMAP_EOF flag [XFS] fix when DMAPI mount option processing happens [XFS] ensure file size is logged on synchronous writes [XFS] growlock should be a mutex [XFS] replace some large xfs_log_priv.h macros by proper functions [XFS] kill struct bhv_vfs [XFS] move syncing related members from struct bhv_vfs to struct xfs_mount [XFS] kill the vfs_flags member in struct bhv_vfs [XFS] kill the vfs_fsid and vfs_altfsid members in struct bhv_vfs ...
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git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup由 Linus Torvalds 提交于
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup: Remove magic macros for screen_info structure members [x86] remove uses of magic macros for boot_params access
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- 17 10月, 2007 14 次提交
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由 Adrian Bunk 提交于
This patch contains the following cleanups that are now possible: - remove the unused security_operations->inode_xattr_getsuffix - remove the no longer used security_operations->unregister_security - remove some no longer required exit code - remove a bunch of no longer used exports Signed-off-by: NAdrian Bunk <bunk@kernel.org> Acked-by: NJames Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Serge Hallyn <serue@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Serge E. Hallyn 提交于
Implement file posix capabilities. This allows programs to be given a subset of root's powers regardless of who runs them, without having to use setuid and giving the binary all of root's powers. This version works with Kaigai Kohei's userspace tools, found at http://www.kaigai.gr.jp/index.php. For more information on how to use this patch, Chris Friedhoff has posted a nice page at http://www.friedhoff.org/fscaps.html. Changelog: Nov 27: Incorporate fixes from Andrew Morton (security-introduce-file-caps-tweaks and security-introduce-file-caps-warning-fix) Fix Kconfig dependency. Fix change signaling behavior when file caps are not compiled in. Nov 13: Integrate comments from Alexey: Remove CONFIG_ ifdef from capability.h, and use %zd for printing a size_t. Nov 13: Fix endianness warnings by sparse as suggested by Alexey Dobriyan. Nov 09: Address warnings of unused variables at cap_bprm_set_security when file capabilities are disabled, and simultaneously clean up the code a little, by pulling the new code into a helper function. Nov 08: For pointers to required userspace tools and how to use them, see http://www.friedhoff.org/fscaps.html. Nov 07: Fix the calculation of the highest bit checked in check_cap_sanity(). Nov 07: Allow file caps to be enabled without CONFIG_SECURITY, since capabilities are the default. Hook cap_task_setscheduler when !CONFIG_SECURITY. Move capable(TASK_KILL) to end of cap_task_kill to reduce audit messages. Nov 05: Add secondary calls in selinux/hooks.c to task_setioprio and task_setscheduler so that selinux and capabilities with file cap support can be stacked. Sep 05: As Seth Arnold points out, uid checks are out of place for capability code. Sep 01: Define task_setscheduler, task_setioprio, cap_task_kill, and task_setnice to make sure a user cannot affect a process in which they called a program with some fscaps. One remaining question is the note under task_setscheduler: are we ok with CAP_SYS_NICE being sufficient to confine a process to a cpuset? It is a semantic change, as without fsccaps, attach_task doesn't allow CAP_SYS_NICE to override the uid equivalence check. But since it uses security_task_setscheduler, which elsewhere is used where CAP_SYS_NICE can be used to override the uid equivalence check, fixing it might be tough. task_setscheduler note: this also controls cpuset:attach_task. Are we ok with CAP_SYS_NICE being used to confine to a cpuset? task_setioprio task_setnice sys_setpriority uses this (through set_one_prio) for another process. Need same checks as setrlimit Aug 21: Updated secureexec implementation to reflect the fact that euid and uid might be the same and nonzero, but the process might still have elevated caps. Aug 15: Handle endianness of xattrs. Enforce capability version match between kernel and disk. Enforce that no bits beyond the known max capability are set, else return -EPERM. With this extra processing, it may be worth reconsidering doing all the work at bprm_set_security rather than d_instantiate. Aug 10: Always call getxattr at bprm_set_security, rather than caching it at d_instantiate. [morgan@kernel.org: file-caps clean up for linux/capability.h] [bunk@kernel.org: unexport cap_inode_killpriv] Signed-off-by: NSerge E. Hallyn <serue@us.ibm.com> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Andrew Morgan <morgan@kernel.org> Signed-off-by: NAndrew Morgan <morgan@kernel.org> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alexey Dobriyan 提交于
For those who don't care about CONFIG_SECURITY. Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Casey Schaufler <casey@schaufler-ca.com> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 James Morris 提交于
Convert LSM into a static interface, as the ability to unload a security module is not required by in-tree users and potentially complicates the overall security architecture. Needlessly exported LSM symbols have been unexported, to help reduce API abuse. Parameters for the capability and root_plug modules are now specified at boot. The SECURITY_FRAMEWORK_VERSION macro has also been removed. In a nutshell, there is no safe way to unload an LSM. The modular interface is thus unecessary and broken infrastructure. It is used only by out-of-tree modules, which are often binary-only, illegal, abusive of the API and dangerous, e.g. silently re-vectoring SELinux. [akpm@linux-foundation.org: cleanups] [akpm@linux-foundation.org: USB Kconfig fix] [randy.dunlap@oracle.com: fix LSM kernel-doc] Signed-off-by: NJames Morris <jmorris@namei.org> Acked-by: NChris Wright <chrisw@sous-sol.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: "Serge E. Hallyn" <serue@us.ibm.com> Acked-by: NArjan van de Ven <arjan@infradead.org> Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rob Landley 提交于
Add recommended section IDs to Documentation/DocBook/filesystems.tmpl Signed-off-by: NRob Landley <rob@landley.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rob Landley 提交于
Fix two htmldocs build breaks, introduced by moving include/linux/usb_gadget.h to include/linux/usb/gadget.h and combining resume.c and suspend.c into main.c in drivers/base/power. Signed-off-by: NRob Landley <rob@landley.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rob Landley 提交于
Add Documentation/RCU/00-INDEX Signed-off-by: NRob Landley <rob@landley.net> Acked-by: NPaul E. McKenney <paulmck@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rob Landley 提交于
Add recommended section ID tags to deviceiobook.tmpl Because otherwise the link #anchors in the html vary from build to build. Signed-off-by: NRob Landley <rob@landley.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Fix kernel-doc for sys_remap_file_pages() and add info to the 'prot' NOTE. Rename __prot parameter to prot. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Acked-by: NNick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 WANG Cong 提交于
This patch does the following cleanups for Documentation/vm/slabinfo.c: - Fix two memory leaks; - Constify some char pointers; - Use snprintf instead of sprintf in case of buffer overflow; - Fix some indentations; - Other little improvements. Acked-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NWANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Pavel Machek 提交于
min_free_pages is critical for correctness, document it as such. Signed-off-by: NPavel Machek <pavel@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Pavel Machek 提交于
This cleans up kdump documentation a bit. Plus I do not think we want to mention Linux trademark in _every_ file in documentation.... Signed-off-by: NPavel Machek <pavel@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Matthew Wilcox 提交于
A couple of updates haven't considered whether the documentation makes sense as a whole any more. Three changes here: - Remove the reference to the "DAC Addressing for Address Space Hungry Devices" section which was deleted by Jan Beulich. - Remove the comment about DMA_24BIT_MASK which became obsolete when Tobias Klauser changed the code to actually use DMA_24BIT_MASK. - Remove the section "64-bit DMA and DAC cycle support" since it's fully covered above, and contains a reference to the section deleted by Jan. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rob Landley 提交于
Add Documentation/power/00-INDEX Signed-off-by: NRob Landley <rob@landley.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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