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| author | Dai Ngo <dai.ngo@oracle.com> | 2023-06-29 18:52:39 -0700 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2023-08-29 17:45:22 -0400 |
| commit | fd19ca36fd782b84f71b86525b91a905cda913a4 (patch) | |
| tree | 19568de0e4acd13ed888ccdaa826df3ba7df4dce /fs/nfsd/stats.h | |
| parent | d67cd907cf8ae2cd42e4f3859ad4de4c16d0c2a3 (diff) | |
| download | linux-fd19ca36fd782b84f71b86525b91a905cda913a4.tar.gz linux-fd19ca36fd782b84f71b86525b91a905cda913a4.tar.bz2 linux-fd19ca36fd782b84f71b86525b91a905cda913a4.zip | |
NFSD: handle GETATTR conflict with write delegation
If the GETATTR request on a file that has write delegation in effect and
the request attributes include the change info and size attribute then
the write delegation is recalled. If the delegation is returned within
30ms then the GETATTR is serviced as normal otherwise the NFS4ERR_DELAY
error is returned for the GETATTR.
Add counter for write delegation recall due to conflict GETATTR. This is
used to evaluate the need to implement CB_GETATTR to adoid recalling the
delegation with conflit GETATTR.
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/stats.h')
| -rw-r--r-- | fs/nfsd/stats.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfsd/stats.h b/fs/nfsd/stats.h index 9b43dc3d9991..cf5524e7ca06 100644 --- a/fs/nfsd/stats.h +++ b/fs/nfsd/stats.h @@ -22,6 +22,7 @@ enum { NFSD_STATS_FIRST_NFS4_OP, /* count of individual nfsv4 operations */ NFSD_STATS_LAST_NFS4_OP = NFSD_STATS_FIRST_NFS4_OP + LAST_NFS4_OP, #define NFSD_STATS_NFS4_OP(op) (NFSD_STATS_FIRST_NFS4_OP + (op)) + NFSD_STATS_WDELEG_GETATTR, /* count of getattr conflict with wdeleg */ #endif NFSD_STATS_COUNTERS_NUM }; @@ -93,4 +94,10 @@ static inline void nfsd_stats_drc_mem_usage_sub(struct nfsd_net *nn, s64 amount) percpu_counter_sub(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount); } +#ifdef CONFIG_NFSD_V4 +static inline void nfsd_stats_wdeleg_getattr_inc(void) +{ + percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_WDELEG_GETATTR]); +} +#endif #endif /* _NFSD_STATS_H */ |