Optimize VFS::touch and fix defects and race conditions.
#7739
| Job | Run time |
|---|---|
| 22m 28s | |
| 16m 58s | |
| 26m 29s | |
| 22m 20s | |
| 17m 46s | |
| 9m 43s | |
| 1m 11s | |
| 40m 22s | |
| 10m 50s | |
| 32m 19s | |
| 14m 47s | |
| 29m 52s | |
| 18m 31s | |
| 23m 36s | |
| 55m 39s | |
| 1m 19s | |
| 13m 38s | |
| 32m 53s | |
| 27m 8s | |
| 1h 3m 53s | |
| 8m 6s | |
| 7m 48s | |
| 8m 36s | |
| 8m 21s | |
| 8m 46s | |
| 8m 54s | |
| 8m 48s | |
| 8m 41s | |
| 8m 37s | |
| 8m 28s | |
| 8m 25s | |
| 8m 13s | |
| 8m 31s | |
| 8m 37s | |
| 9m 10s | |
| 8m 59s | |
| 9m 9s | |
| 9m 1s | |
| 7m 50s | |
| 8m 55s | |
| 9m 12s | |
| 9m 9s | |
| 9m 3s | |
| 9m 3s | |
| 8m 58s | |
| 9m 11s | |
| 9m 38s | |
| 9m 19s | |
| 9m 26s | |
| 9m 19s | |
| 9m 17s | |
| 0s | |
| 12h 35m 12s |