- 29 Jul, 2009 16 commits
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Philipp Reisner authored
* drbd-8.3: (134 commits) Missing pices of the unaligned memory access stuff. possible fix for XEN crashes on disconnect fix regression: initial sync target hung in WFBitMapT fix a comment: there are no more ioctls. possible fix for XEN crashes on disconnect fix regression: initial sync target hung in WFBitMapT ... Removed compat code from lru_cache.h All STATIC -> static DRBD_ENABLE_FAULTS -> CONFIG_DRBD_FAULT_INJECTION * drbd-8.3: Fixed some errors/warnings when compiles without DBG_ALL_SYMBOLS (i.e. STATIC = static) Fixed a regression introduced with fb51e2eb1fac83839231499333bf683629388484 No longer include drbd_config.h directly, include drbd.h instead Got rid of drbd_config.h Support lru_cache as module Removing the drbd_buildtag.c file * drbd-8.3: Fixes for architectures that does not support unaligned memory accesses fix reading of the AL ring buffer sync handshake: fix detection of "unrelated" data - it was detected as "regular" split-brain * drbd-8.3: Preparing 8.3.2rc2 compat: 2.6.31 -- q->limits.* and accessor functions Signed-off-by:Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by:
Lars Ellenberg <lars.ellenberg@linbit.com>
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Philipp Reisner authored
Conflicts: lib/Kconfig
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Philipp Reisner authored
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Philipp Reisner authored
Moved lru_cache.c to ~linux/lib lru_cache - documentation update, type cast removal Using kmalloc() first, trying vmalloc() as fallback for the page anchors of the bitmap Making everything kernel-doc compliant rename mdev->bc to mdev->ldev (to match the recent change to get_ldev/put_ldev) make drbd thread t_lock irqsave - lockdep complained, and lockdep is right (theoretically) Signed-off-by:
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Philipp Reisner authored
Improving a comment Call drbd_rs_cancel_all() and reset rs_pending when aborting resync due to detach. (Bugz 223) Allow detach of a SyncTarget node. (Bugz 221) rename inc_local -> get_ldev; inc_net -> get_net_conf; and corresponding dec_* -> put_* replace AL with activity log in comments drbd_md_sync_page_io: prepare for rw being more than just r/w direction remove outdated comment add comment: page_address allowed, preallocated with GFP_KERNEL renaming a few constants: _SECT -> _SECTOR_SIZE, _SIZE_B -> _SHIFT ... remove quite a few 'inline's from .c files replacing __attribute__((packed)) with __packed micro: comment spelling fix Allow pass-through options to drbdsetup also for the syncer subcommand dmsetup: ERR_PACKET_NR error message was missing Signed-off-by: -
Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
2fcb72c00e0fb35120665943cbe7003739bd1009 get rid of unneccessary fsync_bdev 2721065e39000629e87296676fd077bb0970417b Merge branch 'drbd-8.2' into drbd-8.3 93edff9e37a122b5f2d23ed2baef0dfeef1c5a17 Merge branch 'drbd-8.0' into drbd-8.2 0fb44e5ef678346808a9ab06a259112af7814fc8 dead code removal 13bb2bb8dd3fddbae88a1fcba757b567208e3ae1 fix config/deconfig race 4c0505a621e8c06eeac9a7d831621ea949770fe2 need to hold req_lock for_drbd_set_state (recently introduced bogon) 590cb50f41337c39b7d8095991fa1d144dbc3fd7 remove unnecessary variable, fix comment formatting 73abcf4b8f53f26fa4a6d524916fba142342df33 make bm_lock message moreinformative; hunting configuration race condition 0efb38921eff65f7f05aa2e028833aea5ed5b8f4 adjust loglevel: some dev_dbg should rather be warn, or info at least 50ddc402f72ab5b4486e0efa912a16b6f3d3012a bitmap compression stats: output percentage saved, not 'factor' 1737021364ea6da4d08bd08e99d1083587d271d4 compressed bitmap: finally settle for _one_ encoding c63bd973e2d52baeceb425592af371bf8f4fe2cd introduce disable_sendpage module parameter a87458a4243968229b9db85e680d464aae3c9bd4 fix double send_cnt accounting of _drbd_no_send_page fallbacks Signed-off-by:
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Philipp Reisner authored
9b8b170585e2959d552b0ba592b649d758b933b8 Merge branch 'drbd-8.3' into drbd-8.3-cleanups 1922274c822b34cf4b66843819ccfed97e1da4f1 Improvements to drbd_nl_net_conf() * Removing macros * Fixed the code for 1a59b007715215697968cfaed3f2f159d262c030 Removing a workaround for bugs in blk_queue_stack_limits() in older kernels 56d788e4fa7a4809fc41f8c17a02032fb8793080 Merge branch 'drbd-8.3' into drbd-8.3-cleanups a95b4cfb595ced59ca6d2b26d450fd7e5e08fec8 The coding style guide says: Constants are ALL_CAPS 84cc8259557954b39fa8b0c57931b08cdc3df3f6 Merge branch 'drbd-8.2' into drbd-8.3 555b9f742cce70430a5769a35128ee3fa06fa9f4 Merge branch 'drbd-8.0' into drbd-8.2 f96e2776b2e49ef992d43a624d7c6be7d0610bfa Removing CamelCase from structs, enums and unions 727aca1fcc001381ab6f0a7229fa7db54b9431ea Removing '#if 0' code 546cbdec6779e997a37eac0d3762f4e0a3a390f2 Changing the remaining constants to UPPER_CASE only 57e478a0d328405ed97c3bada9d617e5d21a3868 Merge branch 'drbd-8.3' into drbd-8.3-cleanups 23b99bfb4ceca5a00c180620ac3f6db91edf7f85 Andi does not want to get it CC, he prefers to pick it off LKML d362ab639c966107670f4b375cbff757314f5cba Changing the remaining constants to UPPER_CASE only 6fe98c4f0302a28174dd3a852e72fbc6a0caa45e Merge branch 'drbd-8.2' into drbd-8.3 ff327744475ffc66795fc49dcdc232b21589185e Changing the remaining constants to UPPER_CASE only 185392bf5ce63936a5c424b97e38512ab4bcfdb7 Merge branch 'drbd-8.0' into drbd-8.2 5f87618f7272e9ef92b17b2b7c36dcc1c3d59031 Making all constants UPPER_CASE only 2ebf5224634bf5fda709fb54b43a5de6e3c10bee Adding explicit numbers to the return codes to user space Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
* Moving BUG_ON() as suggested by Nikanth Karthikesan * Removing our ERR, drbd_WARN, INFO, ALERT macros, using the kernel standard dev_err, dev_warn etc.. instead suggested by Bart Van Assche Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
782b1ed1e3582393381e1f3f1cb80020f027ca06 Merge branch 'drbd-8.0' into drbd-8.3 80de0d362ffd9906412ce7b602db7c9cd550b678 Adjusted the drbd_congested() function to work on kernels >= 2.6.30 f484da549b3375ef7e7d9d08d5bf2c95745c8eaa Correct exapnsion of "device minor %d" statements for upper resources. 4cecefe99336e911425e390f115cf32a9036679f Fixed the res_by_minor() function 10d77c7a0d08257a19f8d67fdda3af71bf415b1d Do not do state changes on unconfigured devices (bugz 214) 706b35dc7ada32cf9cc47d331733514a52c5a820 double :: typo 3ced685cd6ae4179d77e09945a4951f4c997d2db Merge branch 'drbd-8.2' into drbd-8.3 70339fe8d52ee93696aa975b9ed14cbaa61d0e0c Merge branch 'drbd-8.0' into drbd-8.2 864141476a52d5e174dcbb03fa9f98b6da6f9689 Fixing the error code path in case the bitmap allocation failes. 8126b2adf618924c1d00407bd56b8b4f3976e198 Fault injection for the bitmap allocation c091e4513f805f9a2118f01ee87e6ec7a419126a proc/drbd: catch uninitialized congestion flag d30881451c988619e243d6294a899139eed1183d Preparing 8.0.16 Signed-off-by:
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Philipp Reisner authored
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- 24 Jun, 2009 24 commits
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Linus Torvalds authored
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Linus Torvalds authored
This reverts commit 9e9f46c4. Quoting from the commit message: "At this point, it seems to solve more problems than it causes, so let's try using it by default. It's an easy revert if it ends up causing trouble." And guess what? The _CRS code causes trouble. Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.infradead.org/battery-2.6Linus Torvalds authored
* git://git.infradead.org/battery-2.6: da9030_battery: Fix race between event handler and monitor Add MAX17040 Fuel Gauge driver w1: ds2760_battery: add support for sleep mode feature w1: ds2760: add support for EEPROM read and write ds2760_battery: cleanups in ds2760_battery_probe()
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Linus Torvalds authored
Merge branches 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/{vfs-2.6,audit-current} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: another race fix in jfs_check_acl() Get "no acls for this inode" right, fix shmem breakage inline functions left without protection of ifdef (acl) * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL
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Al Viro authored
Signed-off-by:Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
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Eric Paris authored
Even though one cannot make use of the audit watch code without CONFIG_AUDIT_SYSCALL the spaghetti nature of the audit code means that the audit rule filtering requires that it at least be compiled. Thus build the audit_watch code when we build auditfilter like it was before cfcad62c Clearly this is a point of potential future cleanup.. Reported-by:
Frans Pop <elendil@planet.nl> Signed-off-by:
Eric Paris <eparis@redhat.com> Signed-off-by:
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Markus Trippelsdorf authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds authored
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Fix the write access fault problem for real
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Thomas Gleixner authored
commit 64d1304a (futex: setup writeable mapping for futex ops which modify user space data) did address only half of the problem of write access faults. The patch was made on two wrong assumptions: 1) access_ok(VERIFY_WRITE,...) would actually check write access. On x86 it does _NOT_. It's a pure address range check. 2) a RW mapped region can not go away under us. That's wrong as well. Nobody can prevent another thread to call mprotect(PROT_READ) on that region where the futex resides. If that call hits between the get_user_pages_fast() verification and the actual write access in the atomic region we are toast again. The solution is to not rely on access_ok and get_user() for any write access related fault on private and shared futexes. Instead we need to fault it in with verification of write access. There is no generic non destructive write mechanism which would fault the user page in trough a #PF, but as we already know that we will fault we can as well call get_user_pages() directly and avoid the #PF overhead. If get_user_pages() returns -EFAULT we know that we can not fix it anymore and need to bail out to user space. Remove a bunch of confusing comments on this issue as well. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org
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Pekka Enberg authored
SLUB uses higher order allocations by default but falls back to small orders under memory pressure. Make sure the GFP mask used in the initial allocation doesn't include __GFP_NOFAIL. Signed-off-by:
Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
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Linus Torvalds authored
Traditionally, we never failed small orders (even regardless of any __GFP_NOFAIL flags), and slab will allocate order-1 allocations even for small allocations that could fit in a single page (in order to avoid excessive fragmentation). Maybe we should remove this warning entirely, but before making that judgement, at least limit it to bigger allocations. Acked-by:
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git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds authored
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: Staging: octeon-ethernet: Fix race freeing transmit buffers. Staging: octeon-ethernet: Convert to use net_device_ops. MIPS: Cavium: Add CPU hotplugging code. MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available MIPS: Add arch generic CPU hotplug DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined. MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined. MIPS: Hibernation: Remove SMP TLB and cacheflushing code. MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. MIPS: bug.h Build fix - include <linux/compiler.h>.
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David Daney authored
The existing code had the following race: Thread-1 Thread-2 inc/read in_use inc/read in_use inc tx_free_list[qos].len inc tx_free_list[qos].len The actual in_use value was incremented twice, but thread-1 is going to free memory based on its stale value, and will free one too many times. The result is that memory is freed back to the kernel while its packet is still in the transmit buffer. If the memory is overwritten before it is transmitted, the hardware will put a valid checksum on it and send it out (just like it does with good packets). If by chance the TCP flags are clobbered but not the addresses or ports, the result can be a broken TCP stream. The fix is to track the number of freed packets in a single location (a Fetch-and-Add Unit register). That way it can never get out of sync with itself. We try to free up to MAX_SKB_TO_FREE (currently 10) buffers at a time. If fewer are available we adjust the free count with the difference. The action of claiming buffers to free is atomic so two threads cannot claim the same buffers. Signed-off-by:David Daney <ddaney@caviumnetworks.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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David Daney authored
Convert the driver to use net_device_ops as it is now mandatory. Also compensate for the removal of struct sk_buff's dst field. The changes are mostly mechanical, the content of ethernet-common.c was moved to ethernet.c and ethernet-common.{c,h} are removed. Signed-off-by: -
Ralf Baechle authored
Thanks to Cavium Inc. for the code contribution and help. Signed-off-by: -
Ralf Baechle authored
The SMP implementation of suspend and hibernate depends on CPU hotplugging. In the past we didn't have CPU hotplug so suspend and hibernation were not possible on SMP systems. Signed-off-by: -
Ralf Baechle authored
Each platform has to add support for CPU hotplugging itself by providing suitable definitions for the cpu_disable and cpu_die of the smp_ops methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the necessary changes. This patch contains the changes to the dummy smp_ops definition for uni-processor systems. Parts of the code contributed by Cavium Inc. Signed-off-by: -
Atsushi Nemoto authored
This patch does not change actual behaviour since dma_unmap_page is just an alias of dma_unmap_single on MIPS. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Ralf Baechle authored
This fixes kernel.org bugzilla 13596, see http://bugzilla.kernel.org/show_bug.cgi?id=13596 Reported-by: dvice_null@yahoo.com Signed-off-by:
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Ralf Baechle authored
This fixes kernel.org bugzilla 13595, see http://bugzilla.kernel.org/show_bug.cgi?id=13595 Reported-by: dvice_null@yahoo.com Signed-off-by:
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Ralf Baechle authored
We can't perform any flushes on SMP from swsusp_arch_resume because interrupts are disabled. A cross-CPU flush is unnecessary anyway because all but the local CPU have already been disabled. A local flush is not needed either because we didn't change any mappings. So just delete the code. Signed-off-by: -
Ralf Baechle authored
Some of the were relying into smp.h being dragged in by another header which of course is fragile. <asm/cpu-info.h> uses smp_processor_id() only in macros and including smp.h there leads to an include loop, so don't change cpu-info.h. Signed-off-by: -
Ralf Baechle authored
In the past this file somehow used to be dragged in. Signed-off-by:
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