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| author | David Howells <dhowells@redhat.com> | 2011-01-14 18:46:51 +0000 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-01-15 20:07:47 -0500 |
| commit | ab90911ff90cdab59b31c045c3f0ae480d14f29d (patch) | |
| tree | 683450a66eb9dc6bf053e38d63f4740bb53a7b6e /lib/swiotlb.c | |
| parent | 87556ef19926e97464e0163a7840140527ae6615 (diff) | |
| download | op-kernel-dev-ab90911ff90cdab59b31c045c3f0ae480d14f29d.zip op-kernel-dev-ab90911ff90cdab59b31c045c3f0ae480d14f29d.tar.gz | |
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 'lib/swiotlb.c')
0 files changed, 0 insertions, 0 deletions
