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I tested on this commit: 15d4000b93539 (brauner-vfs/vfs.misc) vfs: fix readahead(2) on block devices below is the test output: <<>> tst_test.c:1558: TINFO: Timeout per run is 0h 02m 30s readahead01.c:36: TINFO: test_bad_fd -1 readahead01.c:37: TPASS: readahead(-1, 0, getpagesize()) : EBADF (9) readahead01.c:39: TINFO: test_bad_fd O_WRONLY readahead01.c:45: TPASS: readahead(fd, 0, getpagesize()) : EBADF (9) readahead01.c:54: TINFO: test_invalid_fd pipe readahead01.c:56: TFAIL: readahead(fd[0], 0, getpagesize()) expected EINVAL: ESPIPE (29) readahead01.c:60: TINFO: test_invalid_fd socket readahead01.c:62: TFAIL: readahead(fd[0], 0, getpagesize()) succeeded Summary: passed 2 failed 2 broken 0 skipped 0 warnings 0 BTW, I noticed the branch updated, now: e9168b6800ecd (brauner-vfs/vfs.misc) vfs: fix readahead(2) on block devices though the patch-id are same. do you want us to test it again? > > > > > readahead01.c:62: TFAIL: readahead(fd[0], 0, getpagesize()) succeeded > > > > 61: fd[0] = SAFE_SOCKET(AF_INET, SOCK_STREAM, 0); > > 62: TST_EXP_FAIL(readahead(fd[0], 0, getpagesize()), EINVAL); > > > > I think LTP would report 'wrong error code' rather than 'succeeded' > > if it were returning ESPIPE. > > > > I'm not OK with readahead() succeeding on a socket. > > Agree. Reuben reported that this does not happen on v2 > although I cannot explain why it was reported on v1... > > > I think that should > > also return ESPIPE. I think posix_fadvise() should return ESPIPE on a > > socket too, but reporting bugs to the Austin Group seems quite painful. > > Perhaps somebody has been through this process and can do that for us? > > > > This is Reuben's first kernel patch. > Let's agree that changing the standard of posix_fadvise() for socket is > beyond the scope of his contribution :) > > Thanks, > Amir. >