hannken 296ec9e30e Change the snapshot lock: ...

- No need to take the snapshot lock while the file system is suspended.
- Allow ffs_copyonwrite() one level of recursion with snapshots locked.
- Do the block address lookup with snapshots locked.
- Take the snapshot lock while removing a snapshot from the list.

While hunting deadlocks change the transaction scope for ffs_snapremove().
We could deadlock from UFS_WAPBL_BEGIN() with a buffer held.

2011-02-21 09:29:21 +00:00

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ffs_alloc.c

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ffs_appleufs.c

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ffs_balloc.c

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ffs_bswap.c

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ffs_extern.h

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ffs_inode.c

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ffs_snapshot.c

Change the snapshot lock:

2011-02-21 09:29:21 +00:00

ffs_subr.c

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ffs_tables.c

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ffs_vfsops.c

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ffs_vnops.c

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ffs_wapbl.c

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fs.h

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Makefile

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