- 14 Oct, 2011 28 commits
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Andreas Gruenbacher authored
When the node with the discard flag resolves write conflicts in dual-primary mode, it may determine that its peer has sent ack packets on the metadata socket which did not arrive, yet. Wait for the next ack with ping-timeout instead of a hard-coded 30 seconds. Signed-off-by:
Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by:
Lars Ellenberg <lars.ellenberg@linbit.com>
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
Commit 9b1e63e changed the concurrent write detection algorithm to only insert peer requests into write_requests tree after determining that there is no conflict. With this change, new conflicting local requests could be added while the algorithm runs, but this case was not handled correctly. Instead of making the algorithm deal with this case, switch back to adding peer requests to the write_requests tree immediately: this improves fairness. When a peer request is discarded, remove that request from the write_requests Signed-off-by:
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Andreas Gruenbacher authored
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Lars Ellenberg authored
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Lars Ellenberg authored
Summary log messages meant for global bitmap IO should not be printed for bitmap IO caused by activity log transactions. Signed-off-by:
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Lars Ellenberg authored
Use a new on-disk transaction format for the activity log, which allows for multiple changes to the active set per transaction. Using 4k transaction blocks, we can now get rid of the work-around code to deal with devices not supporting 512 byte logical block size. Signed-off-by:
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Lars Ellenberg authored
Allow multiple changes to the active set of elements in lru_cache. The only current user of lru_cache, drbd, is driving this generalisation. Signed-off-by:
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Lars Ellenberg authored
We are about to allow several changes to the active set in one activity log transaction. We have to write out the corresponding bitmap pages as well, if changed. Introduce drbd_bm_mark_for_writeout(), then re-use the existing bitmap writeout path to submit all marked pages in one go. Signed-off-by:
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Lars Ellenberg authored
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Lars Ellenberg authored
For some time we contemplated calling the "struct lru_cache" a "struct tracked_set", and some comments kept the ts_ prefix. Fix those to match the member field names. Signed-off-by:
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Lars Ellenberg authored
Some open-coded clear_bit(); smp_mb__after_clear_bit(); should in fact have been smp_mb__before_clear_bit(); clear_bit(); Instead, use clear_bit_unlock() to annotate the intention, and have it do the right thing. Signed-off-by:
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Lars Ellenberg authored
As using an empty activity log is the whole point of the excercise, make sure it is still empty when setting AL_SUSPENDED. Signed-off-by:
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Lars Ellenberg authored
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Lars Ellenberg authored
fold if (x >= (N+1)) return 0; if (x < N) return 0; into if (x != N) return 0; Signed-off-by:
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
Add a macro and helper function for doing that. Signed-off-by:
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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Philipp Reisner authored
That is used for graceful disconnect only Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
In compatibility mode with old DRBDs, use that as the state_mutex as well. Signed-off-by:
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Philipp Reisner authored
The lock they constructed is only taken when the state_mutex was already taken. It is superficial. Signed-off-by:
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Philipp Reisner authored
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- 28 Sep, 2011 12 commits
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
And removed the unused mdev parameter, and made the order of the state parameters: os, ns Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
No longer work callbacks must operate on a mdev. From now on they can also operate on a tconn. Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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