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| author | Chuck Lever <chuck.lever@oracle.com> | 2022-10-28 17:46:51 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-11-28 20:54:45 +0300 |
| commit | 4d1ea8455716ca070e3cd85767e6f6a562a58b1b (patch) | |
| tree | a5fa7ecea46ed6691f33a9b43342c075bedfeaa5 /fs/nfsd/vfs.c | |
| parent | dcf3f80965ca787c70def402cdf1553c93c75529 (diff) | |
| download | linux-4d1ea8455716ca070e3cd85767e6f6a562a58b1b.tar.xz | |
NFSD: Add an NFSD_FILE_GC flag to enable nfsd_file garbage collection
NFSv4 operations manage the lifetime of nfsd_file items they use by
means of NFSv4 OPEN and CLOSE. Hence there's no need for them to be
garbage collected.
Introduce a mechanism to enable garbage collection for nfsd_file
items used only by NFSv2/3 callers.
Note that the change in nfsd_file_put() ensures that both CLOSE and
DELEGRETURN will actually close out and free an nfsd_file on last
reference of a non-garbage-collected file.
Link: https://bugzilla.linux-nfs.org/show_bug.cgi?id=394
Suggested-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neilb@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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 6f39d6c38116..961e411080f9 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1148,7 +1148,7 @@ __be32 nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, __be32 err; trace_nfsd_read_start(rqstp, fhp, offset, *count); - err = nfsd_file_acquire(rqstp, fhp, NFSD_MAY_READ, &nf); + err = nfsd_file_acquire_gc(rqstp, fhp, NFSD_MAY_READ, &nf); if (err) return err; @@ -1180,7 +1180,7 @@ nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t offset, trace_nfsd_write_start(rqstp, fhp, offset, *cnt); - err = nfsd_file_acquire(rqstp, fhp, NFSD_MAY_WRITE, &nf); + err = nfsd_file_acquire_gc(rqstp, fhp, NFSD_MAY_WRITE, &nf); if (err) goto out; |