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gfs2: Don't sleep during glock hash walk
authorAndreas Gruenbacher <agruenba@redhat.com>
Wed, 10 Jun 2020 16:31:56 +0000 (18:31 +0200)
committerAndreas Gruenbacher <agruenba@redhat.com>
Tue, 30 Jun 2020 11:04:45 +0000 (13:04 +0200)
commit34244d711dea568f4a42c5b0d6b3d620f8cb6971
tree137ff7207b0d91d4d6988d92605cfb2124bf7f62tree | snapshot
parent58e08e8d83ab03a1ca25d53420bd0b87f2dfe458commit | diff
gfs2: Don't sleep during glock hash walk

In flush_delete_work, instead of flushing each individual pending
delayed work item, cancel and re-queue them for immediate execution.
The waiting isn't needed here because we're already waiting for all
queued work items to complete in gfs2_flush_delete_work.  This makes the
code more efficient, but more importantly, it avoids sleeping during a
rhashtable walk, inside rcu_read_lock().

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
fs/gfs2/glock.c diff | blob | history
Domain: System / Kernel;