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authorM. Mohan Kumar <mohan@in.ibm.com>2010-09-27 12:22:13 +0530
committerEric Van Hensbergen <ericvh@gmail.com>2010-10-28 09:08:47 -0500
commit1d769cd192fc8c4097b1e2cd41fdee6ba3d1b2af (patch)
tree16fd71ff9178bbfe144a28a2e168c85fb541a11b /net/8021q
parenta099027c779068b834f335cfdc3f2bf10f531dd9 (diff)
9p: Implement TGETLOCK
Synopsis size[4] TGetlock tag[2] fid[4] getlock[n] size[4] RGetlock tag[2] getlock[n] Description TGetlock is used to test for the existence of byte range posix locks on a file identified by given fid. The reply contains getlock structure. If the lock could be placed it returns F_UNLCK in type field of getlock structure. Otherwise it returns the details of the conflicting locks in the getlock structure getlock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK start[8] - Starting offset for lock length[8] - Number of bytes to check for the lock If length is 0, check for lock in all bytes starting at the location 'start' through to the end of file pid[4] - PID of the process that wants to take lock/owns the task in case of reply client[4] - Client id of the system that owns the process which has the conflicting lock Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> 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 'net/8021q')
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