| commit | fb578eace6c2fb11150b7e39f0c516c979323d8d | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 13 Oct 2017 05:59:02 +0000 (12 22:59 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Mon, 16 Oct 2017 18:30:22 +0000 (16 11:30 -0700) | ||
| tree | 84917e8b26756a8a8c3bbc8c535edf40c02a8f74 | treesnapshot (tar.gz zip) |
| parent | fe45ae1a1588966a69c174e5192406e76dd749b3 | commitdiff |
kernel - Improve mountlist_scan() performance, track vfs_getvfs()
* Use a shared token whenever possible, and do not hold the token
across the callback in the mountlist_scan() call.
* vfs_getvfs() mount_hold()'s the returned mp. The caller is now
expected to mount_drop() it when done. This fixes a very rare
race.
* Use a shared token whenever possible, and do not hold the token
across the callback in the mountlist_scan() call.
* vfs_getvfs() mount_hold()'s the returned mp. The caller is now
expected to mount_drop() it when done. This fixes a very rare
race.