- 26 1月, 2008 16 次提交
-
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
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>
-
- 25 1月, 2008 2 次提交
-
-
由 Greg Kroah-Hartman 提交于
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: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Greg Kroah-Hartman 提交于
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: NGreg Kroah-Hartman <gregkh@suse.de>
-
- 18 12月, 2007 4 次提交
-
-
由 Mark Fasheh 提交于
ocfs2_extend_trans() might call journal_restart() which will commit dirty buffers and then restart the transaction. This means that any buffers which still need changes should be passed to journal_access() again. Some paths during extend weren't doing this right. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
The nastiest cases of transaction extends are also the rarest. We can expose them more quickly at the expense of performance by going straight to the journal_restart() in ocfs2_extend_trans(). Wrap things in OCFS2_DEBUG_FS so that we only do this when "expensive debugging" is turned on. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
This BUG_ON() was unintentionally left in after the sparse file support was written. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
We're holding the cluster lock when a failure might happen in ocfs2_dir_foreach() so it needs to be released. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
- 06 12月, 2007 1 次提交
-
-
由 Al Viro 提交于
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: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 28 11月, 2007 8 次提交
-
-
由 Mark Fasheh 提交于
ocfs2_truncate() and ocfs2_remove_inode_range() had reversed their "set i_size" arguments to ocfs2_truncate_inline(). Fix things so that truncate sets i_size, and punching a hole ignores it. This exposed a problem where punching a hole in an inline-data file wasn't updating the page cache, so fix that too. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
This was causing us to prematurely push out inline data by one byte. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
The existing bug statement didn't take into account unhashed dentries which might not have a cluster lock on them. This could happen if a node exporting the file system via NFS is rebooted, re-exported to nfs clients and then unmounted. It's fine in this case to not have a dentry cluster lock. Just remove the bug statement and replace it with an error print, which does the proper checks. Though we want to know if something has happened which might have prevented a cluster lock from being created, it's definitely not necessary to panic the machine for this. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Jan Kara 提交于
Enable expensive bitmap scanning only if DEBUG option is enabled. The bitmap scanning quite loads the CPU and on my machine the write throughput of dd if=/dev/zero of=/ocfs2/file bs=1M count=500 conv=sync improves from 37 MB/s to 45.4 MB/s in local mode... Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
If the inode block isn't valid then we don't want to print the value from that, instead print the block number which was passed in (which should always be correct). Also, turn this into a debug print for now - folks who hit an actual problem always have other logs indicating what the source is. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
It's almost never worth printing in that situation and we keep forgetting to manually filter it out. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Joe Perches 提交于
Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
Right now we're just setting them from the existing parameters, not the new ones that a remount specified. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
- 13 11月, 2007 1 次提交
-
-
由 Trond Myklebust 提交于
...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: NTrond Myklebust <Trond.Myklebust@netapp.com> Acked-by: NMark Fasheh <mark.fasheh@oracle.com> Acked-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 07 11月, 2007 8 次提交
-
-
由 Srinivas Eeda 提交于
If another node unlinks the destination while ocfs2_rename() is waiting on a cluster lock, ocfs2_rename() simply logs an error and continues. This causes a crash because the renaming node is now trying to delete a non-existent inode. The correct solution is to return -ENOENT. Signed-off-by: NSrinivas Eeda <srinivas.eeda@oracle.com> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Jan Kara 提交于
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: NJan Kara <jack@suse.cz> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
On file systems which don't support sparse files, Ocfs2_map_page_blocks() was reading blocks on appending writes. This caused write performance to suffer dramatically. Fix this by detecting an appending write on a nonsparse fs and skipping the read. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
We're missing a meta data commit for extending sync writes. In thoery, write could return with the meta data required to read the data uncommitted to disk. Fix that by detecting an allocating write and forcing a journal commit in the sync case. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
Do this to avoid a theoretical (I haven't seen this in practice) race where the downconvert thread might drop the dentry lock, allowing a remote unlink to proceed before dropping the inode locks. This could bounce access to the orphan dir between nodes. There doesn't seem to be a need to do the same in ocfs2_dentry_iput() as that's never called for the last ref drop from the downconvert thread. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Mark Fasheh 提交于
If we have not yet created a cluster lock, ocfs2_cluster_lock() will first create it at NLMODE, and then convert the lock to either PRMODE or EXMODE (whichever is requested). Change ocfs2_cluster_lock() to just create the lock at the initially requested level. ocfs2_locking_ast() handles this case fine, so the only update required was in setup of locking state. This should reduce the number of network messages required for a new lock by one, providing an incremental performance enhancement. Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Roel Kluin 提交于
Fixes priority mistakes similar to '!x & y' Signed-off-by: NRoel Kluin <12o3l@tiscali.nl> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-
由 Adrian Bunk 提交于
ocfs2_find_entry_el() can become static. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
-