Commit 2b7d3af2 authored by Ramon Nou's avatar Ramon Nou
Browse files

Add a simple fsync implementation to solve warning on ior.

parent 953537e8

include/client/hooks.hpp

+2 −0
Original line number Diff line number Diff line
@@ -105,6 +105,8 @@ int hook_statfs(const char* path, struct statfs* buf); 


int hook_fstatfs(unsigned int fd, struct statfs* buf);



int hook_fsync(unsigned int fd);



} // namespace hook

} // namespace gkfs

src/client/hooks.cpp

+14 −0
Original line number Diff line number Diff line
@@ -814,5 +814,19 @@ int hook_fstatfs(unsigned int fd, struct statfs* buf) { 
    return syscall_no_intercept(SYS_fstatfs, fd, buf);

}



/* The function should broadcast a flush message (pmem_persist i.e.) if the application needs the capabilities*/

int hook_fsync(unsigned int fd) {



    LOG(DEBUG, "{}() called with fd: {}",

        __func__, fd);



    if (CTX->file_map()->exist(fd)) {

        errno = 0;

        return 0;

    }



    return syscall_no_intercept(SYS_fsync, fd);

}



} // namespace hook

} // namespace gkfs

src/client/intercept.cpp

+4 −0
Original line number Diff line number Diff line
@@ -726,6 +726,10 @@ int hook(long syscall_number, 
                                              reinterpret_cast<struct statfs*>(arg1));

            break;



        case SYS_fsync:

            *result = gkfs::hook::hook_fsync(static_cast<unsigned int>(arg0));

            break;



        default:

            // ignore any other syscalls, i.e.: pass them on to the kernel

            // (syscalls forwarded to the kernel that return are logged in