- May 30, 2010
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Sage Weil authored
The underlying problem is that many mds requests can't be restarted. For example, a restarted create() would return -EEXIST if the original request succeeds. However, we do not want a hung MDS to hang the client too. So, use the _killable wait_for_completion variants to abort on SIGKILL but nothing else. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Add missing _killable_timeout variant for wait_for_completion that will return when a timeout expires or the task is killed. CC: Ingo Molnar <mingo@elte.hu> CC: Andreas Herrmann <andreas.herrmann3@amd.com> CC: Thomas Gleixner <tglx@linutronix.de> CC: Mike Galbraith <efault@gmx.de> Acked-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by:
Sage Weil <sage@newdream.net>
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- May 22, 2010
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Sage Weil authored
Use the same message, allocated during startup. No need to reallocate a new one each time around (and potentially ENOMEM). Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
The auth_reply handler will (re)send any pending requests. For the initial mon authenticate phase, that's correct, but when a auth ticket renewal races with an in-flight request, we may resend a request message that is already in flight. Avoid this by revoking the message before sending it. We should also avoid resending requests at all during ticket renewal; that will come soon. Signed-off-by:
Sage Weil <sage@newdream.net>
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Tobias Klauser authored
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by:
Tobias Klauser <tklauser@distanz.ch> Signed-off-by:
Sage Weil <sage@newdream.net>
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- May 18, 2010
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Yehuda Sadeh authored
This is essential, as for the rados block device we'll need to run in different contexts that would need flags that are other than GFP_NOFS. Signed-off-by:
Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Specify max bytes in request to bound size of reply. Add associated mount option with default value of 512 KB. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Julia Lawall authored
Use kzalloc rather than the combination of kmalloc and memset. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,size,flags; statement S; @@ -x = kmalloc(size,flags); +x = kzalloc(size,flags); if (x == NULL) S -memset(x, 0, size); // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
We invalidate I_COMPLETE and dentry leases in two places: on aborted mds request and on request replay. Use common helper to avoid duplicate code. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
These are used for adjusting behavior, such as conditionally encoding a newer message format. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Notable changes include pool op defines and types, FLOCK feature bit, and new CMPXATTR osd ops. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Drop the 'user.' prefix and use just 'ceph.' for fs virtual xattrs. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
The remove_session_caps() helper is called when an MDS closes out our session (either normally, or as a result of a failed reconnect), and when we tear down state for umount. If we remove the last cap, and there are no cap migrations in progress, then there is little hope of us flushing out that data to the mds (without heroic efforts to reconnect and flush). So, to avoid leaving inodes pinned (due to dirty state) and crashing after umount, throw out dirty caps state and unpin the inodes. Print a warning to the console so we know something was lost. NOTE: Although we drop wrbuffer refs, we don't actually mark pages clean; maybe a truncate should be queued? Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Currently, if our session is closed (due to a timeout, or explicit close, or whatever), we just sit there doing nothing unless/until the MDS restarts, at which point we try to reconnect. Change client to attempt an immediate reconnect if our session is closed. Note that currently the MDS doesn't support this, and our attempt will fail. We'll get a session CLOSE, our caps and dirty cap state will be dropped, and the client will be free to attempt to reconnect. That's clearly not as nice as a successful reconnect, but it at least allows us to try to carry on, and in the future the MDS will support a reconnect and we will fare better. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Pass a ceph_mds_session, since the caller has it. Remove the dead code for sending empty reconnects. It used to be used when the MDS contacted _us_ to solicit a reconnect, and we could reply saying "go away, I have no session." Now we only send reconnects based on the mds map, and only when we do in fact have an open session. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
We used to infer reconnect success by watching the MDS state, essentially assuming that hearing nothing meant things were ok. That wasn't particularly reliable. Instead, the MDS replies with an explicit OPEN message to indicate success. Strictly speaking, this is a protocol change, but it is a backwards compatible one that does not break new clients + old servers or old clients + new servers. At least not yet. Drop unused @all argument from kick_requests while we're at it. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
On OPENING we shouldn't have any caps (or releases). On CLOSING, we should wait until we succeed (and throw it all out), or don't (and are OPEN again). On RECONNECTING we can wait until we are OPEN. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
If the MDS restarts, the expire caps state is no longer shared, and can be thrown out. Caps state will be rebuilt on the MDS during the reconnect process that follows. Zero out any release messages and adjust the release counter accordingly. Signed-off-by:
Sage Weil <sage@newdream.net>
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Yehuda Sadeh authored
This is being done so that we could reuse the statfs infrastructure with other requests that return values. Signed-off-by:
Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
The CEPH_FEATURE_NOSRCADDR protocol feature avoids putting the full source address in each message header (twice). This patch switches the client to the new scheme, and _requires_ this feature on the server. The server will support both the old and new schemes. That means an old client will work with a new server, but a new client will not work with an old server. Signed-off-by:
Sage Weil <sage@newdream.net>
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Dan Carpenter authored
We don't ever use "dirty" so we can remove it. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
The bdi_setup_and_register() helper doesn't help us since we bdi_init() in create_client() and bdi_register() only when sget() succeeds. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Reported-by:
Bill Pemberton <wfp5p@virginia.edu> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Ensure all options are included in /proc/mounts. Some cleanup. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
We want to assign an offset when the dentry goes from null to linked, which is always done by splice_dentry(). Notably, we should NOT assign an offset when a dentry is first created and is still null. BUG if we try to splice a non-null dentry (we shouldn't). Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
This can screw up offsets assigned to new dentries and break dcache readdir results. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Set next_offset to 2 (always 2!), not 0, on readdir finish. Signed-off-by:
Sage Weil <sage@newdream.net>
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Henry C Chang authored
If the version hasn't changed, don't rebuild the index. Signed-off-by:
Henry C Chang <henry_c_chang@tcloudcomputing.com> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
If we use the xattr_blob, clear the pointer so we don't release the memory at the bottom of the fuction. Reported-by:
Henry C Chang <henry_c_chang@tcloudcomputing.com> Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Simplify messenger locking, and close race between ceph_con_close() setting the CLOSED bit and con_work() checking the bit, then taking the mutex. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Free dentry_info in error path. Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@newdream.net>
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Sage Weil authored
Allow the osd reset timeout to be disabled. Signed-off-by:
Sage Weil <sage@newdream.net>
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Dan Carpenter authored
d_obtain_alias() doesn't return NULL, it returns an ERR_PTR(). Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
Sage Weil <sage@newdream.net>
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