- 28 4月, 2006 3 次提交
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git://ftp.linux-mips.org/pub/scm/upstream-linus由 Linus Torvalds 提交于
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix branch emulation for floating-point exceptions. [MIPS] Cleanup inode->r_dev usage. [MIPS] Update MIPS defconfigs. [MIPS] Get rid of CONFIG_ADVANCED. [MIPS] Kconfig: Clarify description of CROSSCOMPILE. [MIPS] 24K LV: Add core card id. [MIPS] Sparse: fix sparse for 64-bit kernels. [MIPS] Use __ffs() instead of ffs() in ip32_irq0(). [MIPS] Fix bitops for MIPS32/MIPS64 CPUs. [MIPS] Fix ip27 build. [MIPS] Oprofile: fix sparse warning. [MIPS] Fix oprofile module unloading
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git://brick.kernel.dk/data/git/linux-2.6-block由 Linus Torvalds 提交于
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: make the read-side do batched page lookups [PATCH] Add find_get_pages_contig(): contiguous variant of find_get_pages() [PATCH] splice: switch to using page_cache_readahead()
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由 Zachary Amsden 提交于
Proposed fix for ptep_get_and_clear_full PAE bug. Pte_clear had the same bug, so use the same fix for both. Turns out pmd_clear had it as well, but pgds are not affected. The problem is rather intricate. Page table entries in PAE mode are 64-bits wide, but the only atomic 8-byte write operation available in 32-bit mode is cmpxchg8b, which is expensive (at least on P4), and thus avoided. But it can happen that the processor may prefetch entries into the TLB in the middle of an operation which clears a page table entry. So one must always clear the P-bit in the low word of the page table entry first when clearing it. Since the sequence *ptep = __pte(0) leaves the order of the write dependent on the compiler, it must be coded explicitly as a clear of the low word followed by a clear of the high word. Further, there must be a write memory barrier here to enforce proper ordering by the compiler (and, in the future, by the processor as well). On > 4GB memory machines, the implementation of pte_clear for PAE was clearly deficient, as it could leave virtual mappings of physical memory above 4GB aliased to memory below 4GB in the TLB. The implementation of ptep_get_and_clear_full has a similar bug, although not nearly as likely to occur, since the mappings being cleared are in the process of being destroyed, and should never be dereferenced again. But, as luck would have it, it is possible to trigger bugs even without ever dereferencing these bogus TLB mappings, even if the clear is followed fairly soon after with a TLB flush or invalidation. The problem is that memory above 4GB may now be aliased into the first 4GB of memory, and in fact, may hit a region of memory with non-memory semantics. These regions include AGP and PCI space. As such, these memory regions are not cached by the processor. This introduces the bug. The processor can speculate memory operations, including memory writes, as long as they are committed with the proper ordering. Speculating a memory write to a linear address that has a bogus TLB mapping is possible. Normally, the speculation is harmless. But for cached memory, it does leave the falsely speculated cacheline unmodified, but in a dirty state. This cache line will be eventually written back. If this cacheline happens to intersect a region of memory that is not protected by the cache coherency protocol, it can corrupt data in I/O memory, which is generally a very bad thing to do, and can cause total system failure or just plain undefined behavior. These bugs are extremely unlikely, but the severity is of such magnitude, and the fix so simple that I think fixing them immediately is justified. Also, they are nearly impossible to debug. Signed-off-by: NZachary Amsden <zach@vmware.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 27 4月, 2006 19 次提交
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由 Ralf Baechle 提交于
In the branch emulation for floating-point exceptions, __compute_return_epc must determine for bc1f et al which condition code bit to test. This is based on bits <4:2> of the rt field. The switch statement to distinguish bc1f et al needs to use only the two low bits of rt, but the old code tests on the whole rt field. This patch masks off the proper bits. Signed-off-by: NWin Treese <treese@acm.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
imajor()/iminor() should be used instead of accessing r_dev directly. Based on patch from Eric Sesterhenn (snakebyte@gmx.de). Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
It's been a horrible source of confusion and let users to shoot themselves into both feet with uzis to no end. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Chris Dearman 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Atsushi Nemoto 提交于
This commit breaks sparse for 64bit kernel. The -m64 option is required. Also, some macro values (such as _MIPS_TUNE, etc.) contain double-quote characters so it would be better quoting arguments by single-quote characters. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Atsushi Nemoto 提交于
With recent rewrite for generic bitops, ffs() is defined the same way as the libc and compiler built-in routines (returns int instead of unsigned long). Use __ffs() for 64bit value. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Atsushi Nemoto 提交于
With recent rewrite for generic bitops, fls() for 32bit kernel with MIPS64_CPU is broken. Also, ffs(), fls() should be defined the same way as the libc and compiler built-in routines (returns int instead of unsigned long). Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Atsushi Nemoto 提交于
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
When unloading oprofile module with timer-mode, oprofile_arch_exit dereferences a NULL pointer. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jens Axboe 提交于
Use the new find_get_pages_contig() to potentially look up the entire splice range in one single call. This speeds up generic_file_splice_read() quite a bit. Signed-off-by: NJens Axboe <axboe@suse.de>
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由 Jens Axboe 提交于
find_get_pages_contig() will break out if we hit a hole in the page cache. From Andrew Morton, small modifications and documentation by me. Signed-off-by: NJens Axboe <axboe@suse.de>
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由 Jens Axboe 提交于
Avoids doing useless work, when the file is fully cached. Signed-off-by: NJens Axboe <axboe@suse.de>
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由 Linus Torvalds 提交于
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由 Linus Torvalds 提交于
* master.kernel.org:/home/rmk/linux-2.6-mmc: [MMC] pxamci: fix data timeout calculation
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由 Linus Torvalds 提交于
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] nommu: trivial fixups for head-nommu.S and the Makefile [ARM] vfp: fix leak of VFP_NAN_FLAG into FPSCR [ARM] 3484/1: Correct AEABI CFLAGS for correct enum handling
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由 Russell King 提交于
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- 26 4月, 2006 18 次提交
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由 Chandra Seetharaman 提交于
Few of the notifier_chain_register() callers use __init in the definition of notifier_call. It is incorrect as the function definition should be available after the initializations (they do not unregister them during initializations). This patch fixes all such usages to _not_ have the notifier_call __init section. Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Chandra Seetharaman 提交于
Few of the notifier_chain_register() callers use __devinitdata in the definition of notifier_block data structure. It is incorrect as the data structure should be available after the initializations (they do not unregister them during initializations). This was leading to an oops when notifier_chain_register() call is invoked for those callback chains after initialization. This patch fixes all such usages to _not_ have the notifier_block data structure in the init data section. Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 James Morris 提交于
This patch addresses a flaw in LSM, where there is no mediation of readv() and writev() in for 32-bit compatible apps using a 64-bit kernel. This bug was discovered and fixed initially in the native readv/writev code [1], but was not fixed in the compat code. Thanks to Al for spotting this one. [1] http://lwn.net/Articles/154282/Signed-off-by: NJames Morris <jmorris@namei.org> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Al Viro 提交于
All modifications of ->i_flags in inodes that might be visible to somebody else must be under ->i_mutex. That patch fixes ext3 ioctl() setting S_APPEND and friends. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Al Viro 提交于
Switched to use of sys_pread64()/sys_pwrite64() rather than keep duplicating their guts; among the little things that had been missing there were such as ret = security_file_permission (file, MAY_READ); Gotta love the LSM robustness, right? Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Al Viro 提交于
sbi->s_group_desc is an array of pointers to buffer_head. memcpy() of buffer size from address of buffer_head is a bad idea - it will generate junk in any case, may oops if buffer_head is close to the end of slab page and next page is not mapped and isn't what was intended there. IOW, ->b_data is missing in that call. Fortunately, result doesn't go into the primary on-disk data structures, so only backup ones get crap written to them; that had allowed this bug to remain unnoticed until now. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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git://brick.kernel.dk/data/git/linux-2.6-block由 Linus Torvalds 提交于
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: add ->splice_write support for /dev/null [PATCH] splice: rearrange moving to/from pipe helpers [PATCH] Add support for the sys_vmsplice syscall [PATCH] splice: fix offset problems [PATCH] splice: fix min() warning
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由 Linus Torvalds 提交于
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: [PATCH] forcedeth: fix initialization [PATCH] sky2: version 1.2 [PATCH] sky2: reset function can be devinit [PATCH] sky2: use ALIGN() macro [PATCH] sky2: add fake idle irq timer [PATCH] sky2: reschedule if irq still pending [PATCH] bcm43xx: make PIO mode usable [PATCH] bcm43xx: add to MAINTAINERS [PATCH] softmac: fix SIOCSIWAP [PATCH] Fix crash on big-endian systems during scan e1000: Update truesize with the length of the packet for packet split [PATCH] Fix locking in gianfar
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由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [BRIDGE]: allow full size vlan packets
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由 Jens Axboe 提交于
Useful for testing. Signed-off-by: NJens Axboe <axboe@suse.de>
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由 Jens Axboe 提交于
We need these for people writing their own ->splice_read/write hooks. Signed-off-by: NJens Axboe <axboe@suse.de>
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由 Ayaz Abdulla 提交于
This patch fixes the nic initialization. If the nic was in low power mode, it brings it back to normal power. Also, it utilizes a new hardware reset during the init. I am resending based on feedback, I corrected the register size mapping and delay after posted write. Signed-Off-By: NAyaz Abdulla <aabdulla@nvidia.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Stephen Hemminger 提交于
Update to version 1.2 Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Stephen Hemminger 提交于
The sky2_reset function only called from sky2_probe. Maybe the compiler was smart enough to figure this out already. Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Stephen Hemminger 提交于
The ALIGN() macro in kernel.h does the same math that the sky2 driver was using for padding. Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Stephen Hemminger 提交于
Add an fake NAPI schedule once a second. This is an attempt to work around for broken configurations with edge-triggered interrupts. Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Stephen Hemminger 提交于
This is a workaround for the case edge-triggered irq's. Several users seem to have broken configurations sharing edge-triggered irq's. To avoid losing IRQ's, reshedule if more work arrives. The changes to netdevice.h are to extract the part that puts device back in list into separate inline. Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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