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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-06-30 17:48:50 +0400 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-08-02 23:28:35 +0400 |
| commit | a534c8d15b1f1d0f861fc2bb9e0529bd8486ec3f (patch) | |
| tree | 0451da7a61bd7e3eb5968d65beee3243f7f51b5d /scripts/headers_check.pl | |
| parent | ebf46264a004818fe5b23f0ac18ac7336897d807 (diff) | |
| download | linux-a534c8d15b1f1d0f861fc2bb9e0529bd8486ec3f.tar.xz | |
fs/9p: Prevent parallel rename when doing fid_lookup
During fid lookup we need to make sure that the dentry->d_parent doesn't
change so that we can safely walk the parent dentries. To ensure that
we need to prevent cross directory rename during fid_lookup. Add a
per superblock rename_sem rw_semaphore to prevent parallel fid lookup and
rename.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'scripts/headers_check.pl')
0 files changed, 0 insertions, 0 deletions