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    SubjectRe: Make pipe data structure be a circular list of pages, rather than

    > + if (bufs < PIPE_BUFFERS) {
    > + ssize_t chars;
    > + int newbuf = (info->curbuf + bufs) & (PIPE_BUFFERS-1);

    If i understand this patch correctly, then this code

    for (;;)
    write(pipe_fd, &byte, 1);

    will block after writing PIPE_BUFFERS == 16 characters, no?
    And pipe_inode_info will use 64K to hold 16 bytes!

    Is it ok?

    May be it make sense to add data to the last allocated page
    until buf->len > PAGE_SIZE ?

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      Last update: 2005-03-22 14:09    [W:0.018 / U:5.540 seconds]
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