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Diffstat (limited to 'fs/nfsd/vfs.c')
-rw-r--r--fs/nfsd/vfs.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index d25a723b68ad..edf6d3ed8777 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -594,8 +594,19 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
594 return error; 594 return error;
595} 595}
596 596
597#define NFSD_XATTR_JUNCTION_PREFIX XATTR_TRUSTED_PREFIX "junction." 597/*
598#define NFSD_XATTR_JUNCTION_TYPE NFSD_XATTR_JUNCTION_PREFIX "type" 598 * NFS junction information is stored in an extended attribute.
599 */
600#define NFSD_JUNCTION_XATTR_NAME XATTR_TRUSTED_PREFIX "junction.nfs"
601
602/**
603 * nfsd4_is_junction - Test if an object could be an NFS junction
604 *
605 * @dentry: object to test
606 *
607 * Returns 1 if "dentry" appears to contain NFS junction information.
608 * Otherwise 0 is returned.
609 */
599int nfsd4_is_junction(struct dentry *dentry) 610int nfsd4_is_junction(struct dentry *dentry)
600{ 611{
601 struct inode *inode = dentry->d_inode; 612 struct inode *inode = dentry->d_inode;
@@ -606,7 +617,7 @@ int nfsd4_is_junction(struct dentry *dentry)
606 return 0; 617 return 0;
607 if (!(inode->i_mode & S_ISVTX)) 618 if (!(inode->i_mode & S_ISVTX))
608 return 0; 619 return 0;
609 if (vfs_getxattr(dentry, NFSD_XATTR_JUNCTION_TYPE, NULL, 0) <= 0) 620 if (vfs_getxattr(dentry, NFSD_JUNCTION_XATTR_NAME, NULL, 0) <= 0)
610 return 0; 621 return 0;
611 return 1; 622 return 1;
612} 623}