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    superblock: add filesystem shrinker operations · 0e1fdafd
    Dave Chinner 提交于
    Now we have a per-superblock shrinker implementation, we can add a
    filesystem specific callout to it to allow filesystem internal
    caches to be shrunk by the superblock shrinker.
    
    Rather than perpetuate the multipurpose shrinker callback API (i.e.
    nr_to_scan == 0 meaning "tell me how many objects freeable in the
    cache), two operations will be added. The first will return the
    number of objects that are freeable, the second is the actual
    shrinker call.
    Signed-off-by: NDave Chinner <dchinner@redhat.com>
    Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
    0e1fdafd
vfs.txt 46.5 KB