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* ocfs2/hb: Expose the list of heartbeating nodes via debugfsSunil Mushran2009-04-03
| | | | | | | | This patch creates a debugfs file, o2hb/livesnodes, which exposes the aggregate list of heartbeating node across all heartbeat regions. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* trivial: fix then -> than typos in comments and documentationFrederik Schwarzer2009-01-06
| | | | | | | - (better, more, bigger ...) then -> (...) than Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ocfs2/quota: Add QUOTA in mlog_attribute.Tao Ma2009-01-05
| | | | | | | | | A new mlog mask has to be added into mlog_attribute before it can be really used in mlog. ML_QUOTA is only added in masklog.h, so add it to the array to enable it. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Implementation of local and global quota file handlingJan Kara2009-01-05
| | | | | | | | | | | | | | | | | For each quota type each node has local quota file. In this file it stores changes users have made to disk usage via this node. Once in a while this information is synced to global file (and thus with other nodes) so that limits enforcement at least aproximately works. Global quota files contain all the information about usage and limits. It's mostly handled by the generic VFS code (which implements a trie of structures inside a quota file). We only have to provide functions to convert structures from on-disk format to in-memory one. We also have to provide wrappers for various quota functions starting transactions and acquiring necessary cluster locks before the actual IO is really started. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* fs: replace NIPQUAD()Harvey Harrison2008-10-31
| | | | | | | | Using NIPQUAD() with NIPQUAD_FMT, %d.%d.%d.%d or %u.%u.%u.%u can be replaced with %pI4 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] sanitize blkdev_get() and friendsAl Viro2008-10-21
| | | | | | | | * get rid of fake struct file/struct dentry in __blkdev_get() * merge __blkdev_get() and do_open() * get rid of flags argument of blkdev_get() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] pass fmode_t to blkdev_put()Al Viro2008-10-21
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: Add extent tree operation for xattr value btreesTao Ma2008-10-13
| | | | | | | | | | | | | | | | | | | | | | Add some thin wrappers around ocfs2_insert_extent() for each of the 3 different btree types, ocfs2_inode_insert_extent(), ocfs2_xattr_value_insert_extent() and ocfs2_xattr_tree_insert_extent(). The last is for the xattr index btree, which will be used in a followup patch. All the old callers in file.c etc will call ocfs2_dinode_insert_extent(), while the other two handle the xattr issue. And the init of extent tree are handled by these functions. When storing xattr value which is too large, we will allocate some clusters for it and here ocfs2_extent_list and ocfs2_extent_rec will also be used. In order to re-use the b-tree operation code, a new parameter named "private" is added into ocfs2_extent_tree and it is used to indicate the root of ocfs2_exent_list. The reason is that we can't deduce the root from the buffer_head now. It may be in an inode, an ocfs2_xattr_block or even worse, in any place in an ocfs2_xattr_bucket. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* [PATCH] ocfs2/cluster/netdebug.c: fix warningAlexander Beregalov2008-08-22
| | | | | | | | | | ocfs2/cluster/netdebug.c: fix warning fs/ocfs2/cluster/netdebug.c:154: warning: format '%lu' expects type 'long unsigned int', but argument 17 has type 'suseconds_t' Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* [PATCH] ocfs2/cluster/tcp.c: make some functions staticAdrian Bunk2008-08-22
| | | | | | | | | Commit 0f475b2abed6cbccee1da20a0bef2895eb2a0edd (ocfs2/net: Silence build warnings) made sense as far as it fixed compile warnings, but it was not required that it made the functions global. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* configfs: Allow ->make_item() and ->make_group() to return detailed errors.Joel Becker2008-07-17
| | | | | | | | | | | | | | | | | | The configfs operations ->make_item() and ->make_group() currently return a new item/group. A return of NULL signifies an error. Because of this, -ENOMEM is the only return code bubbled up the stack. Multiple folks have requested the ability to return specific error codes when these operations fail. This patch adds that ability by changing the ->make_item/group() ops to return ERR_PTR() values. These errors are bubbled up appropriately. NULL returns are changed to -ENOMEM for compatibility. Also updated are the in-kernel users of configfs. This is a rework of reverted commit 11c3b79218390a139f2d474ee1e983a672d5839a. Signed-off-by: Joel Becker <joel.becker@oracle.com>
* Revert "configfs: Allow ->make_item() and ->make_group() to return detailed ↵Joel Becker2008-07-17
| | | | | | | | | errors." This reverts commit 11c3b79218390a139f2d474ee1e983a672d5839a. The code will move to PTR_ERR(). Signed-off-by: Joel Becker <joel.becker@oracle.com>
* configfs: Allow ->make_item() and ->make_group() to return detailed errors.Joel Becker2008-07-14
| | | | | | | | | | | | | | The configfs operations ->make_item() and ->make_group() currently return a new item/group. A return of NULL signifies an error. Because of this, -ENOMEM is the only return code bubbled up the stack. Multiple folks have requested the ability to return specific error codes when these operations fail. This patch adds that ability by changing the ->make_item/group() ops to return an int. Also updated are the in-kernel users of configfs. Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2/net: Silence build warnings on sparc64Sunil Mushran2008-07-14
| | | | | | | | | | | | | | | | | | | | | suseconds_t is type long on most arches except sparc64 where it is type int. This patch silences the following warnings that are generated when building on it. netdebug.c: In function 'nst_seq_show': netdebug.c:152: warning: format '%lu' expects type 'long unsigned int', but argument 13 has type 'suseconds_t' netdebug.c:152: warning: format '%lu' expects type 'long unsigned int', but argument 15 has type 'suseconds_t' netdebug.c:152: warning: format '%lu' expects type 'long unsigned int', but argument 17 has type 'suseconds_t' netdebug.c: In function 'sc_seq_show': netdebug.c:332: warning: format '%lu' expects type 'long unsigned int', but argument 19 has type 'suseconds_t' netdebug.c:332: warning: format '%lu' expects type 'long unsigned int', but argument 21 has type 'suseconds_t' netdebug.c:332: warning: format '%lu' expects type 'long unsigned int', but argument 23 has type 'suseconds_t' netdebug.c:332: warning: format '%lu' expects type 'long unsigned int', but argument 25 has type 'suseconds_t' netdebug.c:332: warning: format '%lu' expects type 'long unsigned int', but argument 27 has type 'suseconds_t' netdebug.c:332: warning: format '%lu' expects type 'long unsigned int', but argument 29 has type 'suseconds_t' Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Move the hb_ctl_path sysctl into the stack glue.Joel Becker2008-06-16
| | | | | | | | | ocfs2 needs to call out to the hb_ctl program at unmount for all cluster stacks. The first step is to move the hb_ctl_path sysctl out of the o2cb code and into the generic stack glue. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* [PATCH 3/3] ocfs2/net: Silence build warningsSunil Mushran2008-05-30
| | | | | | | | This patch silences the build warnings concerning o2net_init_nst() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* [PATCH 1/3] ocfs2/net: Silence build warningsSunil Mushran2008-05-30
| | | | | | | | This patch silences the build warnings concerning o2net_debugfs_init() and friends when building without CONFIG_DEBUG_FS enabled. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Correct merge of 52f7c21 (Move /sys/o2cb to /sys/fs/o2cb)Joel Becker2008-04-30
| | | | | | | | | | | | Commit 52f7c21b613f80cb425d115c9e5b4ed958a133c0 was intended to move /sys/o2cb to /sys/fs/o2cb, providing /sys/o2cb as a symlink for backwards compatibility. However, the merge apparently added the symlink but failed to move the directory, resulting in a duplicate filename error. It's a one-line change that was missing. Signed-off-by: Joel Becker <joel.becker@oracle.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2/net: Add debug interface to o2netSunil Mushran2008-04-18
| | | | | | | | | | | | | | | This patch exposes o2net information via debugfs. The information includes the list of sockets (sock_containers) as well as the list of outstanding messages (send_tracking). Useful for o2dlm debugging. (This patch is derived from an earlier one written by Zach Brown that exposed the same information via /proc.) [Mark: checkpatch fixes] Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Reviewed-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2/cluster: Get rid of arguments to the timeout routinesJeff Mahoney2008-04-18
| | | | | | | | | | | | | We keep seeing bug reports related to NULL pointer derefs in o2net_set_nn_state(). When I originally wrote up the configurable timeout patch, I had tried to plan for multiple clusters. This was silly. The timeout routines all use o2nm_single_cluster so there's no point in passing an argument at all. This patch removes the arguments and kills those bugs dead. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Move /sys/o2cb to /sys/fs/o2cbMark Fasheh2008-04-18
| | | | | | | | | | | | /sys/fs is where we really want file system specific sysfs objects. Ocfs2-tools has been updated to look in /sys/fs/o2cb. We can maintain backwards compatibility with old ocfs2-tools by using a sysfs symlink. After some time (2 years), the symlink can be safely removed. This patch also adds documentation to make it easier for people to figure out what /sys/fs/o2cb is used for. Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Reconnect after idle time out.Tao Ma2008-04-18
| | | | | | | | | | | | | | | | | | | | | | Currently, o2net connects to a node on hb_up and disconnects on hb_down and net timeout. It disconnects on net timeout is ok, but it should attempt to reconnect back. This is because sometimes nodes get overloaded enough that the network connection breaks but the disk hb does not. And if we get into that situation, we either fence (unnecessarily) or wait for its disk hb to die (and sometimes hang in the process). So in this updated scheme, when the network disconnects, we keep attempting to reconnect till we succeed or we get a disk hb down event. If the other node is really dead, then we will eventually get a node down event. If not, we should be able to connect again and continue. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Fix NULL pointer dereferences in o2netTao Ma2008-03-10
| | | | | | | | | | In some situations, ocfs2_set_nn_state might get called with sc = NULL and valid = 0. If sc = NULL, we can't dereference it to get the o2nm_node member. Instead, do what o2net_initialize_handshake does and use NULL when calling o2net_reconnect_delay and o2net_idle_timeout. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* byteorder: move le32_add_cpu & friends from OCFS2 to coreMarcin Slusarz2008-02-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patchset moves le*_add_cpu and be*_add_cpu functions from OCFS2 to core header (1st), converts ext3 filesystem to this API (2nd) and replaces XFS different named functions with new ones (3rd). There are many places where these functions will be useful. Just look at: grep -r 'cpu_to_[ble12346]*([ble12346]*_to_cpu.*[-+]' linux-src/ Patch for ext3 is an example how conversions will probably look like. This patch: - move inline functions which add native byte order variable to little/big endian variable to core header * le16_add_cpu(__le16 *var, u16 val) * le32_add_cpu(__le32 *var, u32 val) * le64_add_cpu(__le64 *var, u64 val) * be32_add_cpu(__be32 *var, u32 val) - add for completeness: * be16_add_cpu(__be16 *var, u16 val) * be64_add_cpu(__be64 *var, u64 val) Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Cc: David Chinner <dgc@sgi.com> Cc: Timothy Shimmin <tes@sgi.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: Negotiate locking protocol versions.Joel Becker2008-02-06
| | | | | | | | | | | | | | | | | | | | | | | Currently, when ocfs2 nodes connect via TCP, they advertise their compatibility level. If the versions do not match, two nodes cannot speak to each other and they disconnect. As a result, this provides no forward or backwards compatibility. This patch implements a simple protocol negotiation at the dlm level by introducing a major/minor version number scheme for entities that communicate. Specifically, o2dlm has a major/minor version for interaction with o2dlm on other nodes, and ocfs2 itself has a major/minor version for interacting with the filesystem on other nodes. This will allow rolling upgrades of ocfs2 clusters when changes to the locking or network protocols can be done in a backwards compatible manner. In those cases, only the minor number is changed and the negotatied protocol minor is returned from dlm join. In the far less likely event that a required protocol change makes backwards compatibility impossible, we simply bump the major number. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Fix userspace ABI breakage in sysfsJoel Becker2008-01-28
| | | | | | | | | | | | | The userspace ABI of ocfs2's internal cluster stack (o2cb) was broken by commit c60b71787982cefcf9fa09aa281fa8c4c685d557 "kset: convert ocfs2 to use kset_create". Specifically, the '/sys/o2cb' kset was moved to '/sys/fs/o2cb'. This breaks all ocfs2 tools and renders the filesystem unmountable. This fix moves '/sys/o2cb' back where it belongs. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: bump version numberMark Fasheh2008-01-25
| | | | | | | 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: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Update default cluster timeoutsSunil Mushran2008-01-25
| | | | | | | | | | 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: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Remove data locksMark Fasheh2008-01-25
| | | | | | | | | | | | | | 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: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Remove mount/unmount votesMark Fasheh2008-01-25
| | | | | | | | | | | | 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: Mark Fasheh <mark.fasheh@oracle.com>
* kset: convert ocfs2 to use kset_createGreg Kroah-Hartman2008-01-24
| | | | | | | | | | | | Dynamically create the kset instead of declaring it statically. Also use the new kobj_attribute which cleans up this file a _lot_. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Kurt Hackel <kurt.hackel@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* kobject: remove struct kobj_type from struct ksetGreg Kroah-Hartman2008-01-24
| | | | | | | | | | | | | | | | | We don't need a "default" ktype for a kset. We should set this explicitly every time for each kset. This change is needed so that we can make ksets dynamic, and cleans up one of the odd, undocumented assumption that the kset/kobject/ktype model has. This patch is based on a lot of help from Kay Sievers. Nasty bug in the block code was found by Dave Young <hidave.darkstar@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* remove nonsense force-casts from ocfs2Al Viro2007-12-05
| | | | | | | | | | | | endianness annotations in networking code had been in place for quite a while; in particular, sin_port and s_addr are annotated as big-endian. Code in ocfs2 had __force casts added apparently to shut the sparse warnings up; of course, these days they only serve to *produce* warnings for no reason whatsoever... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: Filter -ENOSPC in mlog_errno()Mark Fasheh2007-11-27
| | | | | | | It's almost never worth printing in that situation and we keep forgetting to manually filter it out. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [NET]: Add the helper kernel_sock_shutdown()Trond Myklebust2007-11-12
| | | | | | | | | | | | | | | ...and fix a couple of bugs in the NBD, CIFS and OCFS2 socket handlers. Looking at the sock->op->shutdown() handlers, it looks as if all of them take a SHUT_RD/SHUT_WR/SHUT_RDWR argument instead of the RCV_SHUTDOWN/SEND_SHUTDOWN arguments. Add a helper, and then define the SHUT_* enum to ensure that kernel users of shutdown() don't get confused. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] Fix possibly too long write in o2hb_setup_one_bio()Jan Kara2007-11-06
| | | | | | | | We should subtract start of our IO from PAGE_CACHE_SIZE to get the right length of the write we want to perform. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* Use helpers to obtain task pid in printksPavel Emelyanov2007-10-19
| | | | | | | | | | | | | | | | The task_struct->pid member is going to be deprecated, so start using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in the kernel. The first thing to start with is the pid, printed to dmesg - in this case we may safely use task_pid_nr(). Besides, printks produce more (much more) than a half of all the explicit pid usage. [akpm@linux-foundation.org: git-drm went and changed lots of stuff] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Drivers: clean up direct setting of the name of a ksetGreg Kroah-Hartman2007-10-12
| | | | | | | | | | | | A kset should not have its name set directly, so dynamically set the name at runtime. This is needed to remove the static array in the kobject structure which will be changed in a future patch. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Fix up more bio falloutAl Viro2007-10-12
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Drop 'size' argument from bio_endio and bi_end_ioNeilBrown2007-10-10
| | | | | | | | | | | | | As bi_end_io is only called once when the reqeust is complete, the 'size' argument is now redundant. Remove it. Now there is no need for bio_endio to subtract the size completed from bi_size. So don't do that either. While we are at it, change bi_end_io to return void. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ocfs2: Retry sendpage() if it returns EAGAINSunil Mushran2007-08-09
| | | | | | | | Instead of treating EAGAIN, returned from sendpage(), as an error, this patch retries the operation. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2007-07-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (32 commits) [PATCH] ocfs2: zero_user_page conversion ocfs2: Support xfs style space reservation ioctls ocfs2: support for removing file regions ocfs2: update truncate handling of partial clusters ocfs2: btree support for removal of arbirtrary extents ocfs2: Support creation of unwritten extents ocfs2: support writing of unwritten extents ocfs2: small cleanup of ocfs2_write_begin_nolock() ocfs2: btree changes for unwritten extents ocfs2: abstract btree growing calls ocfs2: use all extent block suballocators ocfs2: plug truncate into cached dealloc routines ocfs2: simplify deallocation locking ocfs2: harden buffer check during mapping of page blocks ocfs2: shared writeable mmap ocfs2: factor out write aops into nolock variants ocfs2: rework ocfs2_buffered_write_cluster() ocfs2: take ip_alloc_sem during entire truncate ocfs2: Add "preferred slot" mount option [KJ PATCH] Replacing memset(<addr>,0,PAGE_SIZE) with clear_page() in fs/ocfs2/dlm/dlmrecovery.c ...
| * [PATCH] ocfs2: use list_for_each_entry where beneficalChristoph Hellwig2007-07-10
| | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * ocfs2: Wake up a starting region if it gets killed in the background.Joel Becker2007-07-10
| | | | | | | | | | | | | | | | | | | | Tell o2cb_region_dev_write() to wake up if rmdir(2) happens on the heartbeat region while it is starting up. Then o2hb_region_dev_write() can check to see if it is alive and act accordingly. This prevents a hang (not being woken) and a crash (if it's woken by a signal). Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * ocfs2: live heartbeat depends on the local node configurationJoel Becker2007-07-10
| | | | | | | | | | | | | | | | | | Removing the local node configuration out from underneath a running heartbeat is "bad". Provide an API in the ocfs2 nodemanager to request a configfs dependancy on the local node, then use it in heartbeat. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * ocfs2: Depend on configfs heartbeat items.Joel Becker2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | ocfs2 mounts require a heartbeat region. Use the new configfs_depend_item() facility to actually depend on them so they can't go away from under us. First, teach cluster/nodemanager.c to depend an item on the o2cb subsystem. Then teach o2hb_register_callbacks to take a UUID and depend on the appropriate region. Finally, teach all users of o2hb to pass a UUID or NULL if they don't require a pin. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * configfs: Convert subsystem semaphore to mutexJoel Becker2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the su_sem member of struct configfs_subsystem to a struct mutex, as that's what it is. Also convert all the users and update Documentation/configfs.txt and Documentation/configfs_example.c accordingly. [ Conflict in fs/dlm/config.c with commit 3168b0780d06ace875696f8a648d04d6089654e5 manually resolved. --Mark ] Inspired-by: Satyam Sharma <ssatyam@cse.iitk.ac.in> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | sysfs: kill unnecessary attribute->ownerTejun Heo2007-07-11
|/ | | | | | | | | | | | | | | | | | | | | | | | | | sysfs is now completely out of driver/module lifetime game. After deletion, a sysfs node doesn't access anything outside sysfs proper, so there's no reason to hold onto the attribute owners. Note that often the wrong modules were accounted for as owners leading to accessing removed modules. This patch kills now unnecessary attribute->owner. Note that with this change, userland holding a sysfs node does not prevent the backing module from being unloaded. For more info regarding lifetime rule cleanup, please read the following message. http://article.gmane.org/gmane.linux.kernel/510293 (tweaked by Greg to not delete the field just yet, to make it easier to merge things properly.) Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ocfs2: Fix masklog breakageTiger Yang2007-06-06
| | | | | | | | | Some of the sysfs changes inadvertantly broke the simple runtime debug log filtering employed in ocfs2. Fix this by properly exporting the masklog category filter names. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: kobject/kset foobarRandy Dunlap2007-05-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix gcc warning and Oops that it causes: fs/ocfs2/cluster/masklog.c:161: warning: assignment from incompatible pointer type [ 2776.204120] OCFS2 Node Manager 1.3.3 [ 2776.211729] BUG: spinlock bad magic on CPU#0, modprobe/4424 [ 2776.214269] lock: ffff810021c8fe18, .magic: ffffffff, .owner: /6394416, .owner_cpu: 0 [ 2776.217864] [ 2776.217865] Call Trace: [ 2776.219662] [<ffffffff803426c8>] spin_bug+0x9e/0xe9 [ 2776.221921] [<ffffffff803427bf>] _raw_spin_lock+0x23/0xf9 [ 2776.224417] [<ffffffff8051acf4>] _spin_lock+0x9/0xb [ 2776.226676] [<ffffffff8033c3b1>] kobject_shadow_add+0x98/0x1ac [ 2776.229367] [<ffffffff8033c4d0>] kobject_add+0xb/0xd [ 2776.231665] [<ffffffff8033c4df>] kset_add+0xd/0xf [ 2776.233845] [<ffffffff8033c5a6>] kset_register+0x23/0x28 [ 2776.236309] [<ffffffff8808ccb7>] :ocfs2_nodemanager:mlog_sys_init+0x68/0x6d [ 2776.239518] [<ffffffff8808ccee>] :ocfs2_nodemanager:o2cb_sys_init+0x32/0x4a [ 2776.242726] [<ffffffff880b80a6>] :ocfs2_nodemanager:init_o2nm+0xa6/0xd5 [ 2776.245772] [<ffffffff8025266c>] sys_init_module+0x1471/0x15d2 [ 2776.248465] [<ffffffff8033f250>] simple_strtoull+0x0/0xdc [ 2776.250959] [<ffffffff8020948e>] system_call+0x7e/0x83 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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