- 17 1月, 2011 3 次提交
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由 Christoph Hellwig 提交于
Currently all filesystems except XFS implement fallocate asynchronously, while XFS forced a commit. Both of these are suboptimal - in case of O_SYNC I/O we really want our allocation on disk, especially for the !KEEP_SIZE case where we actually grow the file with user-visible zeroes. On the other hand always commiting the transaction is a bad idea for fast-path uses of fallocate like for example in recent Samba versions. Given that block allocation is a data plane operation anyway change it from an inode operation to a file operation so that we have the file structure available that lets us check for O_SYNC. This also includes moving the code around for a few of the filesystems, and remove the already unnedded S_ISDIR checks given that we only wire up fallocate for regular files. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Christoph Hellwig 提交于
Instead of various home grown checks that might need updates for new flags just check for any bit outside the mask of the features supported by the filesystem. This makes the check future proof for any newly added flag. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Nicholas Bellinger 提交于
This patch fixes the following kconfig error after changing CONFIGFS_FS -> select SYSFS: fs/sysfs/Kconfig:1:error: recursive dependency detected! fs/sysfs/Kconfig:1: symbol SYSFS is selected by CONFIGFS_FS fs/configfs/Kconfig:1: symbol CONFIGFS_FS is selected by OCFS2_FS fs/ocfs2/Kconfig:1: symbol OCFS2_FS depends on SYSFS Signed-off-by: NNicholas A. Bellinger <nab@linux-iscsi.org> Cc: Joel Becker <jlbec@evilplan.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: James Bottomley <James.Bottomley@suse.de>
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- 13 1月, 2011 2 次提交
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由 Josef Bacik 提交于
This patch just makes ocfs2 use its UNRESERVP ioctl when we get the hole punch flag in fallocate. I didn't test it, but it seems simple enough. Thanks, Acked-by: NJan Kara <jack@suse.cz> Acked-by: NJoel Becker <joel.becker@oracle.com> Signed-off-by: NJosef Bacik <josef@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 08 1月, 2011 3 次提交
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由 Tao Ma 提交于
Tristan Ye has done some refactoring against our truncate process, so some functions like ocfs2_prepare_truncate and ocfs2_free_truncate_context are no use and we'd better remove them. Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Dan Carpenter 提交于
In the original code, we dereferenced "nst" before checking that it was non-NULL. I moved the check forward and pulled the code in an indent level. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Randy Dunlap 提交于
When CONFIG_OCFS2_FS_STATS is not enabled: fs/ocfs2/cluster/tcp.c:1254: error: implicit declaration of function 'o2net_update_recv_stats' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <joel.becker@oracle.com> Cc: ocfs2-devel@oss.oracle.com Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 07 1月, 2011 9 次提交
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由 Nick Piggin 提交于
dcache_inode_lock can be replaced with per-inode locking. Use existing inode->i_lock for this. This is slightly non-trivial because we sometimes need to find the inode from the dentry, which requires d_inode to be stabilised (either with refcount or d_lock). Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Require filesystems be aware of .d_revalidate being called in rcu-walk mode (nd->flags & LOOKUP_RCU). For now do a simple push down, returning -ECHILD from all implementations. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Reduce some branches and memory accesses in dcache lookup by adding dentry flags to indicate common d_ops are set, rather than having to check them. This saves a pointer memory access (dentry->d_op) in common path lookup situations, and saves another pointer load and branch in cases where we have d_op but not the particular operation. Patched with: git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
RCU free the struct inode. This will allow: - Subsequent store-free path walking patch. The inode must be consulted for permissions when walking, so an RCU inode reference is a must. - sb_inode_list_lock to be moved inside i_lock because sb list walkers who want to take i_lock no longer need to take sb_inode_list_lock to walk the list in the first place. This will simplify and optimize locking. - Could remove some nested trylock loops in dcache code - Could potentially simplify things a bit in VM land. Do not need to take the page lock to follow page->mapping. The downsides of this is the performance cost of using RCU. In a simple creat/unlink microbenchmark, performance drops by about 10% due to inability to reuse cache-hot slab objects. As iterations increase and RCU freeing starts kicking over, this increases to about 20%. In cases where inode lifetimes are longer (ie. many inodes may be allocated during the average life span of a single inode), a lot of this cache reuse is not applicable, so the regression caused by this patch is smaller. The cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU, however this adds some complexity to list walking and store-free path walking, so I prefer to implement this at a later date, if it is shown to be a win in real situations. I haven't found a regression in any non-micro benchmark so I doubt it will be a problem. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
dget_locked was a shortcut to avoid the lazy lru manipulation when we already held dcache_lock (lru manipulation was relatively cheap at that point). However, how that the lru lock is an innermost one, we never hold it at any caller, so the lock cost can now be avoided. We already have well working lazy dcache LRU, so it should be fine to defer LRU manipulations to scan time. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
dcache_lock no longer protects anything. remove it. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Add a new lock, dcache_inode_lock, to protect the inode's i_dentry list from concurrent modification. d_alias is also protected by d_lock. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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由 Nick Piggin 提交于
Protect d_unhashed(dentry) condition with d_lock. This means keeping DCACHE_UNHASHED bit in synch with hash manipulations. Signed-off-by: NNick Piggin <npiggin@kernel.dk>
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- 24 12月, 2010 1 次提交
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由 Tejun Heo 提交于
flush_scheduled_work() is deprecated and scheduled to be removed. * cancel_delayed_work() + flush_schedule_work() -> cancel_delayed_work_sync(). * flush qs->qs_work directly on exit instead. Signed-off-by: NTejun Heo <tj@kernel.org> Acked-by: NJoel Becker <joel.becker@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com>
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- 23 12月, 2010 10 次提交
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由 Sunil Mushran 提交于
Adds debugfs dentry o2net/stats to show the o2net timing statistics. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Tracks total time taken to process messages received on a socket. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Tracks total send and status times for all messages sent on a socket. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Replace time trackers in struct o2net_sock_container from struct timeval to union ktime. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Replace time trackers in struct o2net_send_tracking from struct timeval to union ktime. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Make OCFS2_FS_STATS depend on DEBUG_FS. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
In o2dlm, the enumerated message values are part of the protocol. The patch hard codes each value so as to reduce the chance of an editing error causing a protocol mismatch. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Patch makes use of task_pid_nr(). Also removes the null check before calling debugfs_remove(). Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Remove struct debug_buffer in dlmdebug.c/h. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Tao Ma 提交于
In ocfs2_double_lock, when ocfs2_inode_lock for inode1 fails, we just unlock inode2 and return without releasing buffer we get from inode_lock(inode2). The good thing is that it is freed by the only caller ocfs2_rename when it exits. But I don't think this is a right way for error handling. We should free the buffer_head we get in ocfs2_double_lock before exit so that the caller doesn't need to take care of it. Signed-off-by: NTao Ma <boyu.mt@taobao.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 22 12月, 2010 1 次提交
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由 Tao Ma 提交于
When we store system inodes cache in ocfs2_super, we use a array for global system inodes. But unfortunately, the range is calculated wrongly which makes it overflow and pollute ocfs2_super->local_system_inodes. This patch fix it by setting the range properly. The corresponding bug is ossbug1303. http://oss.oracle.com/bugzilla/show_bug.cgi?id=1303 Cc: stable@kernel.org Signed-off-by: NTao Ma <boyu.mt@taobao.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 16 12月, 2010 10 次提交
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由 Sunil Mushran 提交于
The patch pins the node item of the local node when the o2hb thread starts and unpins on stop. An earlier patch pinned the node item of the remote node on o2net connect and unpinned on disconnect. Signed-off-by Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
This patch adds a per o2hb region debugfs file that shows whether that region is pinned or not. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
This patch adds support for pinning o2hb regions in configfs. Pinning disallows a region to be cleanly stopped as long as it has an active dependent user (read o2dlm). In local heartbeat mode, the region uuid matching the domain name is pinned as long as the o2dlm domain is active. In global heartbeat mode, all regions are pinned as long as there is atleast one dependent user and the region count is 3 or less. All regions are unpinned if the number of dependent users is zero or region count is greater than 3. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Patch removes a dropped region from the quorum region bitmap maintained by o2hb. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
o2net pins the node item of the remote node in configfs before initiating the connection. It is unpinned on disconnect. This is to prevent the node item from being unlinked while it is still in use. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Wengang Wang 提交于
Make existing convertion precedent over new lock. It makes o2dlm locking more like fair locking. Signed-off-by: NWengang Wang <wen.gang.wang@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Add the domain name and the resource name in the mlogs. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Tao Ma 提交于
Recently, one of our colleagues meet with a problem that if we write/delete a 32mb files repeatly, we will get an ENOSPC in the end. And the corresponding bug is 1288. http://oss.oracle.com/bugzilla/show_bug.cgi?id=1288 The real problem is that although we have freed the clusters, they are in truncate log and they will be summed up so that we can free them once in a whole. So this patch just try to resolve it. In case we see -ENOSPC in ocfs2_write_begin_no_lock, we will check whether the truncate log has enough clusters for our need, if yes, we will try to flush the truncate log at that point and try again. This method is inspired by Mark Fasheh <mfasheh@suse.com>. Thanks. Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: NTao Ma <tao.ma@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Tao Ma 提交于
When we set/clear the dyn_features for an inode we hold the ip_lock. So do it when we set/clear OCFS2_INDEXED_DIR_FL also. Signed-off-by: NTao Ma <boyu.mt@taobao.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
Two masklogs had the same flag value. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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- 10 12月, 2010 1 次提交
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由 Tristan Ye 提交于
Due to newly-introduced 'coherency=full' O_DIRECT writes also takes the EX rw_lock like buffered writes did(rw_level == 1), it turns out messing the usage of 'level' in ocfs2_dio_end_io() up, which caused i_alloc_sem being failed to get up_read'd correctly. This patch tries to teach ocfs2_dio_end_io to understand well on all locking stuffs by explicitly introducing a new bit for i_alloc_sem in iocb's private data, just like what we did for rw_lock. Signed-off-by: NTristan Ye <tristan.ye@oracle.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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