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author | Ilya Dryomov <idryomov@gmail.com> | 2017-11-13 12:35:40 +0300 |
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committer | Ilya Dryomov <idryomov@gmail.com> | 2017-11-13 18:33:08 +0300 |
commit | 3cfa3b16dd2f1787f9d19d6da2fe9652d806b387 (patch) | |
tree | 89bd33f5a4387c38a0944caea0193842e1627fb7 /fs/btrfs/root-tree.c | |
parent | b11270853fa3654f08d4a6a03b23ddb220512d8d (diff) | |
download | linux-3cfa3b16dd2f1787f9d19d6da2fe9652d806b387.tar.xz |
rbd: default to single-major device number scheme
It's been 3.5 years, let's turn it on by default. Support in rbd(8)
utility goes back to pre-firefly, "rbd map" has been loading the module
with single_major=Y ever since. However, if the module is already
loaded (whether by hand or at boot time), we end up with single_major=N.
Also, some people don't install rbd(8) and use the sysfs interface
directly.
(With single-major=N, a major number is consumed for every mapping,
imposing a limit of ~240 rbd images per host. single-major=Y allows
mapping thousands of rbd images on a single machine.)
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Diffstat (limited to 'fs/btrfs/root-tree.c')
0 files changed, 0 insertions, 0 deletions