Hi, I am trying out to patch the kernel NFSv4 file_operations open() call. But, from the logs, i don't see open() call being fired for file(present on shared nfs server) open operartion(cat /mnt/share/abc.txt). However, in case of NFSv3, i could see open() call being fired for same file(present on shared nfs server) open operation. Can anybody let me me how to patch open() system call in NFSv4? Basically, i want my patch function to be fired first which will internally invoke the actual NFSv4's open call. I am working on RHEL6.4 kernel v2.6.32 64-Bit. Thanks in advance. Regards, Siva -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html