(Andrew, I think this is probably best routed via -mm since it touches several different places)
As Tejun points out, there are several users of the IDR facility that attempt to use it in a cyclic fashion. These users are likely to see -ENOSPC errors after the counter wraps one or more times however. This patchset adds a new idr_alloc_cyclic routine and converts several of these users to it. Many of these users are in obscure parts of the kernel, and I don't have a good way to test some of them. The change is pretty straightforward though, so hopefully it won't be an issue. There is one other cyclic user of idr_alloc that I didn't touch in ipc/util.c. That one is doing some strange stuff that I didn't quite understand, but it looks like it should probably be converted later somehow. Jeff Layton (6): idr: introduce idr_alloc_cyclic amso1100: convert to using idr_alloc_cyclic mlx4: convert to using idr_alloc_cyclic nfsd: convert nfs4_alloc_stid to use idr_alloc_cyclic inotify: convert inotify_add_to_idr to use idr_alloc_cyclic sctp: convert sctp_assoc_set_id to use idr_alloc_cyclic drivers/infiniband/hw/amso1100/c2.h | 1 - drivers/infiniband/hw/amso1100/c2_qp.c | 5 ++-- drivers/infiniband/hw/mlx4/cm.c | 6 ++--- fs/nfsd/nfs4state.c | 9 ++----- fs/notify/inotify/inotify_user.c | 10 +++----- include/linux/fsnotify_backend.h | 1 - include/linux/idr.h | 10 +++++++- lib/idr.c | 47 +++++++++++++++++++++++++++++++--- net/sctp/associola.c | 15 +---------- net/sctp/protocol.c | 2 +- 10 files changed, 63 insertions(+), 43 deletions(-) -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
