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    SubjectRe: [PATCH] remove BKL from drivers' release functions
    Alan Cox wrote:

    >>drivers' release functions. The release functions are already
    >>serialized in the VFS code by an atomic_t which guarantees that each
    >The release function was only partially serialized - what stops a release
    >and an open racing each other ? That in several cases was why the lock
    >was there.
    Nothing, because the BKL is not held for all opens anymore. In most of
    the cases that we addressed, the BKL was in release _only_, not in open
    at all. There were quite a few drivers where we added a spinlock, or
    used atomic operations to keep open from racing with release.

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      Last update: 2005-03-22 13:13    [W:4.053 / U:0.312 seconds]
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