154       return IOStatus::IOError(fname,  in NewSequentialFile()
167       return IOError("While opening a file for sequentially reading", fname,  in NewSequentialFile()
177         return IOError("While fcntl NoCache", fname, errno);  in NewSequentialFile()
187         return IOError("While opening file for sequentially read", fname,  in NewSequentialFile()
208       return IOStatus::IOError(fname,  in NewRandomAccessFile()
222       return IOError("While open a file for random read", fname, errno);  in NewRandomAccessFile()
239           s = IOError("while mmap file for read", fname, errno);  in NewRandomAccessFile()
248           return IOError("while fcntl NoCache", fname, errno);  in NewRandomAccessFile()
283       return IOStatus::IOError(fname,  in OpenWritableFile()
306       s = IOError("While open a file for appending", fname, errno);  in OpenWritableFile()
327         s = IOError("While fcntl NoCache an opened file for appending", fname,  in OpenWritableFile()
335           s = IOError("While calling directio()", fname, errno);  in OpenWritableFile()
382       return IOStatus::IOError(fname,  in ReuseWritableFile()
405       s = IOError("while reopen file for write", fname, errno);  in ReuseWritableFile()
412       s = IOError("while rename file to " + fname, old_fname, errno);  in ReuseWritableFile()
433         s = IOError("while fcntl NoCache for reopened file for append", fname,  in ReuseWritableFile()
441           s = IOError("while calling directio()", fname, errno);  in ReuseWritableFile()
477         return IOError("While open file for random read/write", fname, errno);  in NewRandomRWFile()
502             IOError("While open file for raw mmap buffer access", fname, errno);  in NewMemoryMappedFileBuffer()
516         status = IOError("while mmap file for read", fname, errno);  in NewMemoryMappedFileBuffer()
541       return IOError("While open directory", name, errno);  in NewDirectory()
566               IOError("when fopen a file for new logger", fname, errno));  in NewLogger()
596         return IOStatus::IOError("Unexpected error(" + ToString(err) +  in FileExists()
613           return IOError("While opendir", dir, errno);  in GetChildren()
628       result = IOError("while unlink() file", fname, errno);  in DeleteFile()
637       result = IOError("While mkdir", name, errno);  in CreateDir()
648         result = IOError("While mkdir if missing", name, errno);  in CreateDirIfMissing()
653             IOStatus::IOError("`" + name + "' exists but is not a directory");  in CreateDirIfMissing()
663       result = IOError("file rmdir", name, errno);  in DeleteDir()
674       s = IOError("while stat a file for size", fname, errno);  in GetFileSize()
687       return IOError("while stat a file for modification time", fname, errno);  in GetFileModificationTime()
698       result = IOError("While renaming a file to " + target, src, errno);  in RenameFile()
711       result = IOError("while link file to " + target, src, errno);  in LinkFile()
720       return IOError("while stat a file for num file links", fname, errno);  in NumFileLinks()
731       return IOError("stat file", first, errno);  in AreFilesSame()
734       return IOError("stat file", second, errno);  in AreFilesSame()
776       return IOError("lock hold by current process, acquire time " +  in LockFile()
791       result = IOError("while open a file for lock", fname, errno);  in LockFile()
796       result = IOError("While lock file", fname, errno);  in LockFile()
819       result = IOError("unlock", my_lock->filename, errno);  in UnlockFile()
821       result = IOError("unlock", my_lock->filename, errno);  in UnlockFile()
840       return IOStatus::IOError(strerror(errno));  in GetAbsolutePath()
871       return IOError("While doing statvfs", fname, errno);  in GetFreeSpace()