diff options
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/nfs/Exporting | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/filesystems/nfs/Exporting b/Documentation/filesystems/nfs/Exporting index 87019d2b5981..09994c247289 100644 --- a/Documentation/filesystems/nfs/Exporting +++ b/Documentation/filesystems/nfs/Exporting @@ -92,7 +92,14 @@ For a filesystem to be exportable it must: 1/ provide the filehandle fragment routines described below. 2/ make sure that d_splice_alias is used rather than d_add when ->lookup finds an inode for a given parent and name. - Typically the ->lookup routine will end with a: + + If inode is NULL, d_splice_alias(inode, dentry) is eqivalent to + + d_add(dentry, inode), NULL + + Similarly, d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err) + + Typically the ->lookup routine will simply end with a: return d_splice_alias(inode, dentry); } |