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When fsck_ffs(8) runs in background, it creates a snapshot named fsck_snapshot in the filesystem's .snap directory. The fsck_snapshot file was removed when the background fsck finished. If the system crashed or the fsck exited unexpectedly, the fsck_snapshot file would remain. The snapshot would consume ever more space as the filesystem changed over time until it was removed by a system administrator or a future run of background fsck removed it to create a new snapshot file. This commit unlinks the .snap/fsck_snapshot file immediately after opening it so that it will be reclaimed when fsck closes it at the conclusion of its run. After a system crash, it will be removed as part of the filesystem cleanup because of its zero reference count. As only a few milliseconds pass between its creation and unlinking, there is far less opportunity for it to be accidentally left behind. PR: 106107 MFC-after: 1 week |
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| .. | ||
| dir.c | ||
| ea.c | ||
| fsck.h | ||
| fsck_ffs.8 | ||
| fsutil.c | ||
| gjournal.c | ||
| globs.c | ||
| inode.c | ||
| main.c | ||
| Makefile | ||
| Makefile.depend | ||
| pass1.c | ||
| pass1b.c | ||
| pass2.c | ||
| pass3.c | ||
| pass4.c | ||
| pass5.c | ||
| setup.c | ||
| suj.c | ||
| utilities.c | ||