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Red Hat Bugzilla – Attachment 154754 Details for
Bug 239625
NFS O_EXCL|O_CREAT on R/O filesystem creates erroneous negative dentry
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[patch]
proposed patch
linux-2.6.9-nfs-lookup-dont-hash-dentry.patch (text/plain), 909 bytes, created by
Jeff Layton
on 2007-05-15 17:51:31 UTC
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Description:
proposed patch
Filename:
MIME Type:
Creator:
Jeff Layton
Created:
2007-05-15 17:51:31 UTC
Size:
909 bytes
patch
obsolete
>diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c >index 15ad373..2dd5960 100644 >--- a/fs/nfs/dir.c >+++ b/fs/nfs/dir.c >@@ -866,9 +866,15 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru > if (error < 0) > goto out_unlock; > >- /* If we're doing an exclusive create, optimize away the lookup */ >- if (nfs_is_exclusive_create(dir, nd)) >- goto no_entry; >+ /* >+ * If we're doing an exclusive create, optimize away the lookup >+ * but don't hash the dentry. >+ */ >+ if (nfs_is_exclusive_create(dir, nd)) { >+ d_instantiate(dentry, NULL); >+ error = 0; >+ goto out_unlock; >+ } > > error = nfs_cached_lookup(dir, dentry, &fhandle, &fattr); > if (error != 0) { >@@ -1189,6 +1195,8 @@ int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle, > goto out_err; > } > d_instantiate(dentry, inode); >+ if (d_unhashed(dentry)) >+ d_rehash(dentry); > return 0; > out_err: > d_drop(dentry);
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bug 239625
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