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nfsd: Ensure sampling of the commit verifier is atomic with the commit

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When we have a successful commit, ensure we sample the commit verifier
before releasing the lock.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Trond Myklebust
2020-01-06 13:40:36 -05:00
committed by J. Bruce Fields
parent 809fe3c533
commit 524ff1af22
6 changed files with 14 additions and 12 deletions
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fs/nfsd/vfs.h
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@@ -74,7 +74,7 @@ __be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *,
struct svc_fh *res, int createmode,
u32 *verifier, bool *truncp, bool *created);
__be32 nfsd_commit(struct svc_rqst *, struct svc_fh *,
loff_t, unsigned long);
loff_t, unsigned long, __be32 *verf);
#endif /* CONFIG_NFSD_V3 */
int nfsd_open_break_lease(struct inode *, int);
__be32 nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t,