• Bojan Smojver's avatar
    PM / Hibernate: Use async I/O when reading compressed hibernation image · 9f339caf
    Bojan Smojver authored
    This is a fix for reading LZO compressed image using async I/O.
    Essentially, instead of having just one page into which we keep
    reading blocks from swap, we allocate enough of them to cover the
    largest compressed size and then let block I/O pick them all up. Once
    we have them all (and here we wait), we decompress them, as usual.
    Obviously, the very first block we still pick up synchronously,
    because we need to know the size of the lot before we pick up the
    rest.
    
    Also fixed the copyright line, which I've forgotten before.
    Signed-off-by: default avatarBojan Smojver <bojan@rexursive.com>
    Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
    9f339caf
swap.c 22.6 KB