- 26 1月, 2008 38 次提交
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由 Mark Fasheh 提交于
ocfs2_super->blocked_lock_list and ocfs2_super->blocked_lock_count have some usage restrictions which aren't immediately obvious to anyone reading the code. It's a good idea to document this so that we avoid making costly mistakes in the future. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Joonwoo Park 提交于
configfs_register_subsystem() with default_groups triggers recursive locking. it seems that mutex_lock_nested is needed. ============================================= [ INFO: possible recursive locking detected ] 2.6.24-rc6 #145 --------------------------------------------- swapper/1 is trying to acquire lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40c9a9e>] configfs_add_file+0x2e/0x70 but task is already holding lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca985>] configfs_register_subsystem+0x55/0x130 other info that might help us debug this: 1 lock held by swapper/1: #0: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca985>] configfs_register_subsystem+0x55/0x130 stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #145 [<c40053ba>] show_trace_log_lvl+0x1a/0x30 [<c4005e82>] show_trace+0x12/0x20 [<c400687e>] dump_stack+0x6e/0x80 [<c404ec72>] __lock_acquire+0xe62/0x1120 [<c404efb2>] lock_acquire+0x82/0xa0 [<c43fda88>] mutex_lock_nested+0x98/0x2e0 [<c40c9a9e>] configfs_add_file+0x2e/0x70 [<c40c9b0c>] configfs_create_file+0x2c/0x40 [<c40ca639>] configfs_attach_item+0x139/0x220 [<c40ca734>] configfs_attach_group+0x14/0x140 [<c40ca7e9>] configfs_attach_group+0xc9/0x140 [<c40ca9f6>] configfs_register_subsystem+0xc6/0x130 [<c45c8186>] init_netconsole+0x2b6/0x300 [<c45a75f2>] kernel_init+0x142/0x320 [<c4004fb3>] kernel_thread_helper+0x7/0x14 ======================= Signed-off-by: NJoonwoo Park <joonwpark81@gmail.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Joonwoo Park 提交于
configfs_register_subsystem() with default_groups triggers recursive locking. it seems that mutex_lock_nested is needed. ============================================= [ INFO: possible recursive locking detected ] 2.6.24-rc6 #141 --------------------------------------------- swapper/1 is trying to acquire lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca76f>] configfs_attach_group+0x4f/0x190 but task is already holding lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca9d5>] configfs_register_subsystem+0x55/0x130 other info that might help us debug this: 1 lock held by swapper/1: #0: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca9d5>] configfs_register_subsystem+0x55/0x130 stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #141 [<c40053ba>] show_trace_log_lvl+0x1a/0x30 [<c4005e82>] show_trace+0x12/0x20 [<c400687e>] dump_stack+0x6e/0x80 [<c404ec72>] __lock_acquire+0xe62/0x1120 [<c404efb2>] lock_acquire+0x82/0xa0 [<c43fdad8>] mutex_lock_nested+0x98/0x2e0 [<c40ca76f>] configfs_attach_group+0x4f/0x190 [<c40caa46>] configfs_register_subsystem+0xc6/0x130 [<c45c8186>] init_netconsole+0x2b6/0x300 [<c45a75f2>] kernel_init+0x142/0x320 [<c4004fb3>] kernel_thread_helper+0x7/0x14 ======================= Signed-off-by: NJoonwoo Park <joonwpark81@gmail.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Joel Becker 提交于
configfs has been alive and kicking for a while now. It underpins some non-EXPERIMENTAL subsystems, such as OCFS2's cluster stack. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Bump the printed version to 1.5.0. This helps us quickly identify which version of Ocfs2 a bug filer is running. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Tao Ma 提交于
Currently the process of dlm join contains 2 steps: query join and assert join. After query join, the joined node will set its joining_node. So if the joining node happens to panic before the 2nd step, the joined node will fail to clear its joining_node flag because that node isn't in the domain map. It at least cause 2 problems. 1. All the new join request will fail. So no new node can mount the volume. 2. The joined node can't umount the volume since during the umount process it has to wait for the joining_node to be unknown. So the umount will be hanged. The solution is to clear the joining_node before we check the domain map. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Marcin Slusarz 提交于
Convert byte order of constant instead of variable it will be done at compile time vs run time. Remove unused le32_and_cpu. Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Sunil Mushran 提交于
Lots of people are having trouble with the default timeouts, which are too low. These new values are derived from an informal survey taken on ocfs2-users, as well as data from bug reports. This should reduce the amount of cluster disconnects and subsequent fencing seen during normal workloads. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Jan Kara 提交于
Explicitely convert loff_t to long long in printf. Just for sure... Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Jan Kara 提交于
We should use generic_file_llseek() and not default_llseek() so that s_maxbytes gets properly checked when seeking. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Jan Kara 提交于
In ocfs2_read_inline_data() we should store file size in loff_t. Although the file size should fit in 32 bits we cannot be sure in case filesystem is corrupted. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Jan Kara 提交于
Create separate lockdep lock classes for system file's i_mutexes. They are used to guard allocations and similar things and thus rank differently than i_mutex of a regular file or directory. Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Hook up ocfs2_flock(), using the new flock lock type in dlmglue.c. A new mount option, "localflocks" is added so that users can revert to old functionality as need be. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
This adds a new dlmglue lock type which is intended to back flock() requests. Since these locks are driven from userspace, usage rules are much more liberal than the typical Ocfs2 internal cluster lock. As a result, we can't make use of most dlmglue features - lock caching and lock level optimizations in particular. Additionally, userspace is free to deadlock itself, so we have to deal with that in the same way as the rest of the kernel - by allowing a signal to abort a lock request. In order to keep ocfs2_cluster_lock() complexity down, ocfs2_file_lock() does it's own dlm coordination. We still use the same helper functions though, so duplicated code is kept to a minimum. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Sunil Mushran 提交于
Local alloc is a performance optimization in ocfs2 in which a node takes a window of bits from the global bitmap and then uses that for all small local allocations. This window size is fixed to 8MB currently. This patch allows users to specify the window size in MB including disabling it by passing in 0. If the number specified is too large, the fs will use the default value of 8MB. mount -o localalloc=X /dev/sdX /mntpoint Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Mostly taken from ext3. This allows the user to set the jbd commit interval, in seconds. The default of 5 seconds stays the same, but now users can easily increase the commit interval. Typically, this would be increased in order to benefit performance at the expense of data-safety. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Check that an online resize is being driven by a user with permission to change system resource limits. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Tao Ma 提交于
This patch adds the ability for a userspace program to request that a properly formatted cluster group be added to the main allocation bitmap for an Ocfs2 file system. The request is made via an ioctl, OCFS2_IOC_GROUP_ADD. On a high level, this is similar to ext3, but we use a different ioctl as the structure which has to be passed through is different. During an online resize, tunefs.ocfs2 will format any new cluster groups which must be added to complete the resize, and call OCFS2_IOC_GROUP_ADD on each one. Kernel verifies that the core cluster group information is valid and then does the work of linking it into the global allocation bitmap. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Tao Ma 提交于
This patch adds the ability for a userspace program to request an extend of last cluster group on an Ocfs2 file system. The request is made via ioctl, OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is obviously Ocfs2 specific. tunefs.ocfs2 would call this for an online-resize operation if the last cluster group isn't full. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Tao Ma 提交于
We need to reserve at least two ioctls for online-resize. Reserve a small range of ioctls for Ocfs2 use in Documentation/ioctl-number.txt. This should give us enough room for future growth. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Tao Ma 提交于
This value is initialized from global_bitmap->id2.i_chain.cl_cpg. If there is only 1 group, it will be equal to the total clusters in the volume. So as for online resize, it should change for all the nodes in the cluster. It isn't easy and there is no corresponding lock for it. bitmap_cpg is only used in 2 areas: 1. Check whether the suballoc is too large for us to allocate from the global bitmap, so it is little used. And now the suballoc size is 2048, it rarely meet this situation and the check is almost useless. 2. Calculate which group a cluster belongs to. We use it during truncate to figure out which cluster group an extent belongs too. But we should be OK if we increase it though as the cluster group calculated shouldn't change and we only ever have a small bitmap_cpg on file systems with a single cluster group. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Remove 'readpages' from the list in ocfs2.txt. Instead of having two identical lists, I just removed the list in the OCFS2 section of fs/Kconfig and added a pointer to Documentation/filesystems/ocfs2.txt. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Add ->readpages support to Ocfs2. This is rather trivial - all it required is a small update to ocfs2_get_block (for mapping full extents via b_size) and an ocfs2_readpages() function which partially mirrors ocfs2_readpage(). Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Joel Becker 提交于
This allows others to use the DLM constants without being tied to the function API of fs/dlm. Signed-off-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NSteven Whitehouse <swhiteho@redhat.com> Signed-off-by: NDavid Teigland <teigland@redhat.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Call this the "inode_lock" now, since it covers both data and meta data. This patch makes no functional changes. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
The meta lock now covers both meta data and data, so this just removes the now-redundant data lock. Combining locks saves us a round of lock mastery per inode and one less lock to ping between nodes during read/write. We don't lose much - since meta locks were always held before a data lock (and at the same level) ordered writeout mode (the default) ensured that flushing for the meta data lock also pushed out data anyways. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
In order to extend inode lock coverage to inode data, we use the same data downconvert worker with only a small modification to only do work for regular files. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
The node maps that are set/unset by these votes are no longer relevant, thus we can remove the mount and umount votes. Since those are the last two remaining votes, we can also remove the entire vote infrastructure. The vote thread has been renamed to the downconvert thread, and the small amount of functionality related to managing it has been moved into fs/ocfs2/dlmglue.c. All references to votes have been removed or updated. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
Now that the dlm exposes domain information to us, we don't need generic node up / node down callbacks. And since the DLM is only telling us when a node goes down unexpectedly, we no longer need to optimize away node down callbacks via the umount map. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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由 Mark Fasheh 提交于
With this, a dlm client can take advantage of the group protocol in the dlm to get full notification whenever a node within the dlm domain leaves unexpectedly. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: mount options: fix jfs JFS: simplify types to get rid of sparse warning JFS: FIx one more plain integer as NULL pointer warning JFS: Remove defconfig ptr comparison to 0 JFS: use DIV_ROUND_UP where appropriate Remove unnecessary kmalloc casts in the jfs filesystem JFS is missing a memory barrier JFS: Make sure special inode data is written after journal is flushed JFS: clear PAGECACHE_TAG_DIRTY for no-write pages
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: selinux: make mls_compute_sid always polyinstantiate security/selinux: constify function pointer tables and fields security: add a secctx_to_secid() hook security: call security_file_permission from rw_verify_area security: remove security_sb_post_mountroot hook Security: remove security.h include from mm.h Security: remove security_file_mmap hook sparse-warnings (NULL as 0). Security: add get, set, and cloning of superblock security information security/selinux: Add missing "space"
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git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: [AVR32] extint: Set initial irq type to low level [AVR32] extint: change set_irq_type() handling [AVR32] NMI debugging [AVR32] constify function pointer tables [AVR32] ATNGW100: Update defconfig [AVR32] ATSTK1002: Update defconfig [AVR32] Kconfig: Choose daughterboard instead of CPU [AVR32] Add support for ATSTK1003 and ATSTK1004 [AVR32] Clean up external DAC setup code [AVR32] ATSTK1000: Move gpio-leds setup to setup.c [AVR32] Add support for AT32AP7001 and AT32AP7002 [AVR32] Provide more CPU information in /proc/cpuinfo and dmesg [AVR32] Oprofile support [AVR32] Include instrumentation menu Disable VGA text console for AVR32 architecture [AVR32] Enable debugging only when needed ptrace: Call arch_ptrace_attach() when request=PTRACE_TRACEME [AVR32] Remove redundant try_to_freeze() call from do_signal() [AVR32] Drop GFP_COMP for DMA memory allocations
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git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (56 commits) [GFS2] Allow journal recovery on read-only mount [GFS2] Lockup on error [GFS2] Fix page_mkwrite truncation race path [GFS2] Fix typo [GFS2] Fix write alloc required shortcut calculation [GFS2] gfs2_alloc_required performance [GFS2] Remove unneeded i_spin [GFS2] Reduce inode size by moving i_alloc out of line [GFS2] Fix assert in log code [GFS2] Fix problems relating to execution of files on GFS2 [GFS2] Initialize extent_list earlier [GFS2] Allow page migration for writeback and ordered pages [GFS2] Remove unused variable [GFS2] Fix log block mapper [GFS2] Minor correction [GFS2] Eliminate the no longer needed sd_statfs_mutex [GFS2] Incremental patch to fix compiler warning [GFS2] Function meta_read optimization [GFS2] Only fetch the dinode once in block_map [GFS2] Reorganize function gfs2_glmutex_lock ...
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (125 commits) [CRYPTO] twofish: Merge common glue code [CRYPTO] hifn_795x: Fixup container_of() usage [CRYPTO] cast6: inline bloat-- [CRYPTO] api: Set default CRYPTO_MINALIGN to unsigned long long [CRYPTO] tcrypt: Make xcbc available as a standalone test [CRYPTO] xcbc: Remove bogus hash/cipher test [CRYPTO] xcbc: Fix algorithm leak when block size check fails [CRYPTO] tcrypt: Zero axbuf in the right function [CRYPTO] padlock: Only reset the key once for each CBC and ECB operation [CRYPTO] api: Include sched.h for cond_resched in scatterwalk.h [CRYPTO] salsa20-asm: Remove unnecessary dependency on CRYPTO_SALSA20 [CRYPTO] tcrypt: Add select of AEAD [CRYPTO] salsa20: Add x86-64 assembly version [CRYPTO] salsa20_i586: Salsa20 stream cipher algorithm (i586 version) [CRYPTO] gcm: Introduce rfc4106 [CRYPTO] api: Show async type [CRYPTO] chainiv: Avoid lock spinning where possible [CRYPTO] seqiv: Add select AEAD in Kconfig [CRYPTO] scatterwalk: Handle zero nbytes in scatterwalk_map_and_copy [CRYPTO] null: Allow setkey on digest_null ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6由 Linus Torvalds 提交于
This can be broken down into these major areas: - Documentation updates (language translations and fixes, as well as kobject and kset documenatation updates.) - major kset/kobject/ktype rework and fixes. This cleans up the kset and kobject and ktype relationship and architecture, making sense of things now, and good documenation and samples are provided for others to use. Also the attributes for kobjects are much easier to handle now. This cleaned up a LOT of code all through the kernel, making kobjects easier to use if you want to. - struct bus_type has been reworked to now handle the lifetime rules properly, as the kobject is properly dynamic. - struct driver has also been reworked, and now the lifetime issues are resolved. - the block subsystem has been converted to use struct device now, and not "raw" kobjects. This patch has been in the -mm tree for over a year now, and finally all the issues are worked out with it. Older distros now properly work with new kernels, and no userspace updates are needed at all. - nozomi driver is added. This has also been in -mm for a long time, and many people have asked for it to go in. It is now in good enough shape to do so. - lots of class_device conversions to use struct device instead. The tree is almost all cleaned up now, only SCSI and IB is the remaining code to fix up... * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (196 commits) Driver core: coding style fixes Kobject: fix coding style issues in kobject c files Kobject: fix coding style issues in kobject.h Driver core: fix coding style issues in device.h spi: use class iteration api scsi: use class iteration api rtc: use class iteration api power supply : use class iteration api ieee1394: use class iteration api Driver Core: add class iteration api Driver core: Cleanup get_device_parent() in device_add() and device_move() UIO: constify function pointer tables Driver Core: constify the name passed to platform_device_register_simple driver core: fix build with SYSFS=n sysfs: make SYSFS_DEPRECATED depend on SYSFS Driver core: use LIST_HEAD instead of call to INIT_LIST_HEAD in __init kobject: add sample code for how to use ksets/ktypes/kobjects kobject: add sample code for how to use kobjects in a simple manner. kobject: update the kobject/kset documentation kobject: remove old, outdated documentation. ...
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由 Pekka Enberg 提交于
If the node we're booting on doesn't have memory, bootstrapping kmalloc() caches resorts to fallback_alloc() which requires ->nodelists set for all nodes. Fix that by calling set_up_list3s() for CACHE_CACHE in kmem_cache_init(). As kmem_getpages() is called with GFP_THISNODE set, this used to work before because of breakage in 2.6.22 and before with GFP_THISNODE returning pages from the wrong node if a node had no memory. So it may have worked accidentally and in an unsafe manner because the pages would have been associated with the wrong node which could trigger bug ons and locking troubles. Tested-by: NMel Gorman <mel@csn.ul.ie> Tested-by: NOlaf Hering <olaf@aepfle.de> Reviewed-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> [ With additional one-liner by Olaf Hering - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Karsten Keil 提交于
Fix overwriting the stack with the version string (it is currently 10 bytes + zero) when unloading the capidrv module. Safeguard against overwriting it should the version string grow in the future. Should fix Kernel Bug Tracker Bug 9696. Signed-off-by: NGerd v. Egidy <gerd.von.egidy@intra2net.com> Acked-by: NKarsten Keil <kkeil@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 1月, 2008 2 次提交
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由 Abhijith Das 提交于
This patch allows gfs2 to perform journal recovery even if it is mounted read-only. Strictly speaking, a read-only mount should not be writing to the filesystem, but we do this only to perform journal recovery. A read-only mount will fail if we don't recover the dirty journal. Also, when gfs2 is used as a root filesystem, it will be mounted read-only before being mounted read-write during the boot sequence. A failed read-only mount will panic the machine during bootup. Signed-off-by: NAbhijith Das <adas@redhat.com> Signed-off-by: NSteven Whitehouse <swhiteho@redhat.com>
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由 Bob Peterson 提交于
I spotted this bug while I was digging around. Looks like it could cause a lockup in some rare error condition. Signed-off-by: NBob Peterson <rpeterso@redhat.com> Signed-off-by: NSteven Whitehouse <swhiteho@redhat.com>
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