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Let _recov_next_pending iterate over rids

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Currently the server's recovery timeout work synchronously reclaims
resources for each client whose recovery timed out.
scoutfs_recov_next_pending() can always return the head of the pending
list because its caller will always remove it from the list as it
iterates.

As we move to real fencing the server will be creating fence requests
for all the timed out clients concurrently.  It will need to iterate
over all the rids for clients in recovery.

So we sort recovery's pending list by rid and change _recov_next_pending
to return the next pending rid after a rid argument.  This lets the
server iterate over all the pending rids at once.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2021-05-07 11:39:18 -07:00
parent aad2d3db59
commit 76cef6fdfc
4 changed files with 40 additions and 15 deletions
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2
kmod/src/lock_server.c
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@@ -486,7 +486,7 @@ static int process_waiting_requests(struct super_block *sb,
/* processing waits for all invalidation responses or recovery */
if (!list_empty(&snode->invalidated) ||
scoutfs_recov_next_pending(sb, SCOUTFS_RECOV_LOCKS) != 0) {
scoutfs_recov_next_pending(sb, 0, SCOUTFS_RECOV_LOCKS) != 0) {
ret = 0;
goto out;
}