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aio: aio_nr_lock is taken only synchronously now

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
master
Al Viro 10 years ago
parent
commit
9fa1cb397f
  1. 6
      fs/aio.c

6
fs/aio.c

@ -278,14 +278,14 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
goto out_freectx;
/* limit the number of system wide aios */
spin_lock_bh(&aio_nr_lock);
spin_lock(&aio_nr_lock);
if (aio_nr + nr_events > aio_max_nr ||
aio_nr + nr_events < aio_nr) {
spin_unlock_bh(&aio_nr_lock);
spin_unlock(&aio_nr_lock);
goto out_cleanup;
}
aio_nr += ctx->max_reqs;
spin_unlock_bh(&aio_nr_lock);
spin_unlock(&aio_nr_lock);
/* now link into global list. */
spin_lock(&mm->ioctx_lock);

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