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| author | Phillip Lougher <phillip@lougher.demon.co.uk> | 2011-07-26 03:40:45 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-26 12:57:09 -0400 |
| commit | 5b9f4567726513a359e70f85029482c7c3714dbd (patch) | |
| tree | a68cb1f3393ee1398d759ea29a327bbdf38521c2 /Documentation/filesystems | |
| parent | bacb2d816c77edefd464d6bcc04c07f92109bd7d (diff) | |
| download | lwn-5b9f4567726513a359e70f85029482c7c3714dbd.tar.gz lwn-5b9f4567726513a359e70f85029482c7c3714dbd.zip | |
Documentation: Exporting: update description of d_splice_alias
Following commits a904937 and 0c1aa9a update the d_splice_alias
desciption.
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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); } |