[PATCH 0/5] Remove possible deadlocks in nfs_release_page() - V3

NeilBrown
2014-09-24T02:03:08Z

This set includes acked-by's from Andrew and Peter so it should be
OK for all five patches to go upstream through the NFS tree.

I split the congestion tracking patch out from the wait-for-PG_private
patch as they are conceptually separate.

This set continues to perform well in my tests and addresses all
issues that have been raised.

Thanks a lot,
NeilBrown

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NeilBrown (5):
SCHED: add some "wait..on_bit...timeout()" interfaces.
MM: export page_wakeup functions
NFS: avoid deadlocks with loop-back mounted NFS filesystems.
NFS: avoid waiting at all in nfs_release_page when congested.
NFS/SUNRPC: Remove other deadlock-avoidance mechanisms in nfs_release_page()

fs/nfs/file.c | 29 +++++++++++++++++++----------
fs/nfs/write.c | 7 +++++++
include/linux/pagemap.h | 12 ++++++++++--
include/linux/wait.h | 5 ++++-
kernel/sched/wait.c | 36 ++++++++++++++++++++++++++++++++++++
mm/filemap.c | 21 +++++++++++++++------
net/sunrpc/sched.c | 2 --
net/sunrpc/xprtrdma/transport.c | 2 --
net/sunrpc/xprtsock.c | 10 ----------
9 files changed, 91 insertions(+), 33 deletions(-)

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