Bring back the code to prime the ACCESS cache when fetching attributes for
an NFS file. Now the priming is conditional on a new vfs.nfs.prime_access_cache sysctl. For now I've left the default setting to disabling the priming. Requested by: scottl
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parent
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commit
fdd1a964d1
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=188994
@ -208,6 +208,11 @@ static int nfsaccess_cache_timeout = NFS_MAXATTRTIMO;
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SYSCTL_INT(_vfs_nfs, OID_AUTO, access_cache_timeout, CTLFLAG_RW,
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&nfsaccess_cache_timeout, 0, "NFS ACCESS cache timeout");
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static int nfs_prime_access_cache = 0;
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SYSCTL_INT(_vfs_nfs, OID_AUTO, prime_access_cache, CTLFLAG_RW,
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&nfs_prime_access_cache, 0,
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"Prime NFS ACCESS cache when fetching attributes");
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static int nfsv3_commit_on_close = 0;
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SYSCTL_INT(_vfs_nfs, OID_AUTO, nfsv3_commit_on_close, CTLFLAG_RW,
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&nfsv3_commit_on_close, 0, "write+commit on close, else only write");
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@ -644,6 +649,12 @@ nfs_getattr(struct vop_getattr_args *ap)
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*/
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if (nfs_getattrcache(vp, &vattr) == 0)
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goto nfsmout;
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if (v3 && nfs_prime_access_cache && nfsaccess_cache_timeout > 0) {
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nfsstats.accesscache_misses++;
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nfs3_access_otw(vp, NFSV3ACCESS_ALL, td, ap->a_cred);
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if (nfs_getattrcache(vp, &vattr) == 0)
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goto nfsmout;
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}
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nfsstats.rpccnt[NFSPROC_GETATTR]++;
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mreq = nfsm_reqhead(vp, NFSPROC_GETATTR, NFSX_FH(v3));
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mb = mreq;
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