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truncation failed. Doing so resulted in inconsistent state of the ufs dirhash with regard to the actual directory inode state, and could lead to spurious ENOENT errors for lookups of existing files in production kernels, or assertion failures in the debugging kernels. Change the logic of calling ufsdirhash_dirtrunc() to be same as in ufs_direnter(). Execute UFS_TRUNCATE() first, log error, and only do dirtrunc() if UFS_TRUNCATE() succeeded. Note that the problem was exacerbated by the bug in the flush_newblk_dep() function (see r305599), which caused in the spurios errors from ffs_sync() and then ffs_truncate(). In collaboration with: pho Reviewed by: mckusick Sponsored by: The FreeBSD Foundation MFC after: 2 weeks
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