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2010-04-01microblaze: Support word copying in copy_tofrom_userMichal Simek1-14/+25
Word copying is used only for aligned addresses. Here is space for improving to use any better copying technique. Look at memcpy implementation. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Print early printk information to log bufferMichal Simek1-9/+15
If early printk console is not enabled then all messages are written to log buffer. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: head.S typo fixMichal Simek1-2/+2
I forget to change register name in comments. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Use MICROBLAZE_TLB_SIZE in asm codeMichal Simek2-3/+3
TLB size was hardcoded in asm code. This patch brings ability to change TLB size only in one place. (mmu.h). Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Kconfig Fix - pciMichal Simek1-3/+0
I forget to remove pci Kconfig option. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Adding likely macrosMichal Simek6-26/+28
On the base on GCOV analytics is helpful to add likely/unlikely macros. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Add .type and .size to ASM functionsMichal Simek3-1/+22
Cachegrind analysis need this fix to be able to log asm functions. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Fix TLB macrosMichal Simek1-1/+2
To be able to do trace TLB operations. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Use instruction with delay slotMichal Simek1-8/+5
Sync labels. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Remove additional resr and rear loadingMichal Simek1-15/+3
RESR and REAR uses the same regs in whole file. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Change register usage for ESR and EARMichal Simek1-35/+35
This change synchronize register usage in code. ESR = R4 EAR = R3 Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Prepare work for optimization in exception codeMichal Simek1-6/+3
Any sync branch must follow mts instructions not mfs. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Add DEBUG optionMichal Simek1-0/+2
Disable debug option in asm code. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Support systems without lmb bramMichal Simek1-0/+6
When the system has no lmb bram, main memory should be start from zero because of microblaze vectors. DTS fragment could look like: DDR2_SDRAM: memory@0 { device_type = "memory"; reg = < 0x0 0x10000000 >; } ; Then you have to setup CONFIG_KERNEL_BASE_ADDR=0 which caused that kernel physical start address will be zero. On reset vector place will be jump to 0x100 and on 0x100 starts kernel text. You have to solve how to load the kernel before cpu starts. Tested with XMD. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: Sync strlen, strnlen, copy_to/from_userMichal Simek1-56/+32
Last sync. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: Unify __copy_tofrom_userMichal Simek2-39/+22
Move to generic location. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: Move functions to generic locationMichal Simek3-200/+61
noMMU and MMU use them. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: Fix put_user for noMMUMichal Simek1-22/+56
Here is small regression on dhrystone tests and I think that on all benchmarking tests. It is due to better checking mechanism in put_user macro Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: Fix get_user macro for noMMUMichal Simek1-23/+66
Use unified version. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: fix clear_user for noMMU kernelMichal Simek1-45/+36
Previous patches fixed only MMU version and this is the first patch for noMMU kernel Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: Fix strncpy_from_user functionMichal Simek1-3/+11
Generic implementation for noMMU and MMU version Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: fix copy_from_user macroMichal Simek1-9/+14
copy_from_user macro also use copy_tofrom_user function Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: copy_to_user unificationMichal Simek1-9/+16
noMMU and MMU kernel will use copy copy_tofrom_user asm implementation. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: sync put/get/clear_user macrosMichal Simek1-37/+69
Add macro description and resort. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: fix put_user and get_user macrosMichal Simek1-51/+49
Use FIXUP macros and resort them. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: fix __get_user_asm macroMichal Simek1-16/+17
It is used __FIXUP_SECTION and __EX_TABLE_SECTION macros. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: uaccess: fix clean user macroMichal Simek1-34/+55
This is the first patch which does uaccess unification. I choosed to do several patches to be able to use bisect in future if any fault happens. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: move noMMU __range_ok function to uaccess.hMichal Simek2-9/+6
The same noMMU and MMU functions should be placed in one file. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Move exception_table_entry upwardMichal Simek1-16/+15
Just sort to be able remove whole block. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Remove segment.hMichal Simek5-52/+34
I would like to use asm-generic uaccess.h where are segment macros defined. This is just first step. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Remove memset in free_init_pagesMichal Simek1-1/+0
We don't need to do it. Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Makefile cleanupsArun Bhanu1-4/+0
If CONFIG_INITRAMFS_SOURCE is set, "scripts/gen_initramfs_list.sh" checks if the cpio image exists. Remove the duplicate check from the Makefile. Remove the "clean-kernel" variable which is unused in the Makefile and is not used by the Kbuild. Signed-off-by: Arun Bhanu <[email protected]> Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Fix Makefile to delete build generated filesArun Bhanu2-1/+3
'make clean' does not to delete the following build generated file: arch/microblaze/boot/linux.bin.ub 'make mrproper' does not to delete the following build generated files: arch/microblaze/boot/simpleImage.* Fix the Makefile to delete these build generated files. See [1] for a discussion on why simpleImage.* files are deleted with 'make mrproper' and not with 'make clean'. [1] http://lkml.org/lkml/2010/3/12/96 Signed-off-by: Arun Bhanu <[email protected]> Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Add a missing single quote to make 'make help' happyArun Bhanu1-1/+1
'make ARCH=microblaze help' fails with the following error due to a missing single quote. /bin/sh: -c: line 0: unexpected EOF while looking for matching `'' /bin/sh: -c: line 1: syntax error: unexpected end of file make: *** [help] Error 2 Signed-off-by: Arun Bhanu <[email protected]> Signed-off-by: Michal Simek <[email protected]>
2010-04-01microblaze: Fix "kstack=" parsingSteven J. Magnani1-4/+2
The "kstack=" command line parameter is not parsed correctly. All proper values are interpreted as zero. Signed-off-by: Steven J. Magnani <[email protected]> Signed-off-by: Michal Simek <[email protected]>
2010-03-30Linux 2.6.34-rc3Linus Torvalds1-1/+1
2010-03-30KEYS: Add MAINTAINERS recordDavid Howells1-0/+10
Add a MAINTAINERS record for the key management facility. Signed-off-by: David Howells <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-30Merge branch 'for-linus' of ↵Linus Torvalds1-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: CRED: Fix memory leak in error handling
2010-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfsLinus Torvalds7-36/+67
* git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs: [LogFS] Erase new journal segments [LogFS] Move reserved segments with journal [LogFS] Clear PagePrivate when moving journal Simplify and fix pad_wbuf Prevent data corruption in logfs_rewrite_block() Use deactivate_locked_super Fix logfs_get_sb_final error path Write out both superblocks on mismatch Prevent schedule while atomic in __logfs_readdir Plug memory leak in writeseg_end_io Limit max_pages for insane devices Open segment file before using it
2010-03-30Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds6-13/+44
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Do not free zero sized per cpu areas x86: Make sure free_init_pages() frees pages on page boundary x86: Make smp_locks end with page alignment
2010-03-30CRED: Fix memory leak in error handlingMathieu Desnoyers1-1/+5
Fix a memory leak on an OOM condition in prepare_usermodehelper_creds(). Signed-off-by: Mathieu Desnoyers <[email protected]> Signed-off-by: David Howells <[email protected]> Signed-off-by: James Morris <[email protected]>
2010-03-29Merge branch 'upstream-linus' of ↵Linus Torvalds11-74/+223
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2: Fix a race in o2dlm lockres mastery Ocfs2: Handle deletion of reflinked oprhan inodes correctly. Ocfs2: Journaling i_flags and i_orphaned_slot when adding inode to orphan dir. ocfs2: Clear undo bits when local alloc is freed ocfs2: Init meta_ac properly in ocfs2_create_empty_xattr_block. ocfs2: Fix the update of name_offset when removing xattrs ocfs2: Always try for maximum bits with new local alloc windows ocfs2: set i_mode on disk during acl operations ocfs2: Update i_blocks in reflink operations. ocfs2: Change bg_chain check for ocfs2_validate_gd_parent. [PATCH] Skip check for mandatory locks when unlocking
2010-03-29Merge branch 'for-linus' of ↵Linus Torvalds15-97/+191
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (28 commits) ceph: update discussion list address in MAINTAINERS ceph: some documentations fixes ceph: fix use after free on mds __unregister_request ceph: avoid loaded term 'OSD' in documention ceph: fix possible double-free of mds request reference ceph: fix session check on mds reply ceph: handle kmalloc() failure ceph: propagate mds session allocation failures to caller ceph: make write_begin wait propagate ERESTARTSYS ceph: fix snap rebuild condition ceph: avoid reopening osd connections when address hasn't changed ceph: rename r_sent_stamp r_stamp ceph: fix connection fault con_work reentrancy problem ceph: prevent dup stale messages to console for restarting mds ceph: fix pg pool decoding from incremental osdmap update ceph: fix mds sync() race with completing requests ceph: only release unused caps with mds requests ceph: clean up handle_cap_grant, handle_caps wrt session mutex ceph: fix session locking in handle_caps, ceph_check_caps ceph: drop unnecessary WARN_ON in caps migration ...
2010-03-29Merge branch 'hwmon-for-linus' of ↵Linus Torvalds3-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (asc7621) Add X58 entry in Kconfig hwmon: (w83793) Saving negative errors in unsigned hwmon: (coretemp) Add missing newline to dev_warn() message hwmon: (coretemp) Fix cpu model output
2010-03-29Merge branch 'upstream-linus' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: pata_via: fix VT6410/6415/6330 detection issue
2010-03-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds35-144/+256
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits) r8169: offical fix for CVE-2009-4537 (overlength frame DMAs) ipv6: Don't drop cache route entry unless timer actually expired. tulip: Add missing parens. r8169: fix broken register writes pcnet_cs: add new id bonding: fix broken multicast with round-robin mode drivers/net: Fix continuation lines e1000: do not modify tx_queue_len on link speed change net: ipmr/ip6mr: prevent out-of-bounds vif_table access ixgbe: Do not run all Diagnostic offline tests when VFs are active igb: use correct bits to identify if managability is enabled benet: Fix compile warnnings in drivers/net/benet/be_ethtool.c net: Add MSG_WAITFORONE flag to recvmmsg e1000e: do not modify tx_queue_len on link speed change igbvf: do not modify tx_queue_len on link speed change ipv4: Restart rt_intern_hash after emergency rebuild (v2) ipv4: Cleanup struct net dereference in rt_intern_hash net: fix netlink address dumping in IPv4/IPv6 tulip: Fix null dereference in uli526x_rx_packet() gianfar: fix undo of reserve() ...
2010-03-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds5-13/+13
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Properly truncate pt_regs framepointer in perf callback. arch/sparc/kernel: Use set_cpus_allowed_ptr sparc: Fix use of uid16_t and gid16_t in asm/stat.h
2010-03-29ext3: fix broken handling of EXT3_STATE_NEWLinus Torvalds4-6/+8
In commit 9df93939b735 ("ext3: Use bitops to read/modify EXT3_I(inode)->i_state") ext3 changed its internal 'i_state' variable to use bitops for its state handling. However, unline the same ext4 change, it didn't actually change the name of the field when it changed the semantics of it. As a result, an old use of 'i_state' remained in fs/ext3/ialloc.c that initialized the field to EXT3_STATE_NEW. And that does not work _at_all_ when we're now working with individually named bits rather than values that get masked. So the code tried to mark the state to be new, but in actual fact set the field to EXT3_STATE_JDATA. Which makes no sense at all, and screws up all the code that checks whether the inode was newly allocated. In particular, it made the xattr code unhappy, and caused various random behavior, like apparently https://bugzilla.redhat.com/show_bug.cgi?id=577911 So fix the initialization, and rename the field to match ext4 so that we don't have this happen again. Cc: James Morris <[email protected]> Cc: Stephen Smalley <[email protected]> Cc: Daniel J Walsh <[email protected]> Cc: Eric Paris <[email protected]> Cc: Jan Kara <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-29r8169: offical fix for CVE-2009-4537 (overlength frame DMAs)Neil Horman1-5/+24
Official patch to fix the r8169 frame length check error. Based on this initial thread: http://marc.info/?l=linux-netdev&m=126202972828626&w=1 This is the official patch to fix the frame length problems in the r8169 driver. As noted in the previous thread, while this patch incurs a performance hit on the driver, its possible to improve performance dynamically by updating the mtu and rx_copybreak values at runtime to return performance to what it was for those NICS which are unaffected by the ideosyncracy (if there are any). Summary: A while back Eric submitted a patch for r8169 in which the proper allocated frame size was written to RXMaxSize to prevent the NIC from dmaing too much data. This was done in commit fdd7b4c3302c93f6833e338903ea77245eb510b4. A long time prior to that however, Francois posted 126fa4b9ca5d9d7cb7d46f779ad3bd3631ca387c, which expiclitly disabled the MaxSize setting due to the fact that the hardware behaved in odd ways when overlong frames were received on NIC's supported by this driver. This was mentioned in a security conference recently: http://events.ccc.de/congress/2009/Fahrplan//events/3596.en.html It seems that if we can't enable frame size filtering, then, as Eric correctly noticed, we can find ourselves DMA-ing too much data to a buffer, causing corruption. As a result is seems that we are forced to allocate a frame which is ready to handle a maximally sized receive. This obviously has performance issues with it, so to mitigate that issue, this patch does two things: 1) Raises the copybreak value to the frame allocation size, which should force appropriately sized packets to get allocated on rx, rather than a full new 16k buffer. 2) This patch only disables frame filtering initially (i.e., during the NIC open), changing the MTU results in ring buffer allocation of a size in relation to the new mtu (along with a warning indicating that this is dangerous). Because of item (2), individuals who can't cope with the performance hit (or can otherwise filter frames to prevent the bug), or who have hardware they are sure is unaffected by this issue, can manually lower the copybreak and reset the mtu such that performance is restored easily. Signed-off-by: Neil Horman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-03-29sparc64: Properly truncate pt_regs framepointer in perf callback.David S. Miller1-1/+1
For 32-bit processes, we save the full 64-bits of the regs in pt_regs. But unlike when the userspace actually does load and store instructions, the top 32-bits don't get automatically truncated by the cpu in kernel mode (because the kernel doesn't execute with PSTATE_AM address masking enabled). So we have to do it by hand. Reported-by: Frederic Weisbecker <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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