NFS: nfs_lock_and_join_requests and nfs_scan_commit_list can deadlock

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Since the commit list is not ordered, it is possible for nfs_scan_commit_list
to hold a request that nfs_lock_and_join_requests() is waiting for, while
at the same time trying to grab a request that nfs_lock_and_join_requests
already holds.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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This commit is contained in:

Trond Myklebust 2017-09-09 12:28:01 -04:00

parent 196639ebbe

commit 137da553db

2 changed files with 22 additions and 9 deletions

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16

fs/nfs/pnfs_nfs.c

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15

fs/nfs/write.c

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