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authorDavid Howells <dhowells@redhat.com>2011-01-14 18:46:51 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2011-01-15 20:07:47 -0500
commitab90911ff90cdab59b31c045c3f0ae480d14f29d (patch)
tree683450a66eb9dc6bf053e38d63f4740bb53a7b6e /Documentation/filesystems/Locking
parent87556ef19926e97464e0163a7840140527ae6615 (diff)
downloadblackbird-op-linux-ab90911ff90cdab59b31c045c3f0ae480d14f29d.tar.gz
blackbird-op-linux-ab90911ff90cdab59b31c045c3f0ae480d14f29d.zip
Allow d_manage() to be used in RCU-walk mode
Allow d_manage() to be called from pathwalk when it is in RCU-walk mode as well as when it is in Ref-walk mode. This permits __follow_mount_rcu() to call d_manage() directly. d_manage() needs a parameter to indicate that it is in RCU-walk mode as it isn't allowed to sleep if in that mode (but should return -ECHILD instead). autofs4_d_manage() can then be set to retain RCU-walk mode if the daemon accesses it and otherwise request dropping back to ref-walk mode. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'Documentation/filesystems/Locking')
-rw-r--r--Documentation/filesystems/Locking2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index cbf98b989b11..39707748ed2d 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -32,7 +32,7 @@ d_release: no no yes no
d_iput: no no yes no
d_dname: no no no no
d_automount: no no yes no
-d_manage: no no yes no
+d_manage: no no yes (ref-walk) maybe
--------------------------- inode_operations ---------------------------
prototypes:
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