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| author | Amir Goldstein <amir73il@gmail.com> | 2021-01-06 10:52:35 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2021-01-25 17:36:27 +0300 |
| commit | e567b98ce9a4b35b63c364d24828a9e5cd7a8179 (patch) | |
| tree | 7c59a1e119f6e11cb195a08d7fe055857186194f /fs/nfsd/vfs.c | |
| parent | 1b76d1df1a3683b6b23cd1c813d13c5e6a9d35e5 (diff) | |
| download | linux-e567b98ce9a4b35b63c364d24828a9e5cd7a8179.tar.xz | |
nfsd: protect concurrent access to nfsd stats counters
nfsd stats counters can be updated by concurrent nfsd threads without any
protection.
Convert some nfsd_stats and nfsd_net struct members to use percpu counters.
The longest_chain* members of struct nfsd_net remain unprotected.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/vfs.c')
| -rw-r--r-- | fs/nfsd/vfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 04937e51de56..d560c1bb2ec2 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -889,7 +889,7 @@ static __be32 nfsd_finish_read(struct svc_rqst *rqstp, struct svc_fh *fhp, unsigned long *count, u32 *eof, ssize_t host_err) { if (host_err >= 0) { - nfsdstats.io_read += host_err; + nfsd_stats_io_read_add(host_err); *eof = nfsd_eof_on_read(file, offset, host_err, *count); *count = host_err; fsnotify_access(file); @@ -1040,7 +1040,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf, goto out_nfserr; } *cnt = host_err; - nfsdstats.io_write += *cnt; + nfsd_stats_io_write_add(*cnt); fsnotify_modify(file); if (stable && use_wgather) { |