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/freebsd-10.1-release/sys/sys/
H A Dbio.hdiff 12404 Sun Nov 19 17:54:31 MST 1995 dyson General fixes to the vfs clustring code:

1) Make cluster buffer list be a non-malloced chain. This eliminates
yet another 'evil' M_WAITOK and generally cleans up the code.
2) Fix write clustering for ext2fs. It was just broken. Also, ffs
clustering had an efficiency problem that more bawrites were happening
than should have been.
3) Make changes to buf.h to support the above, plus remove b_pfcent
at the request of David Greenman.
Reviewed by: davidg (partially)
H A Dbuf.hdiff 12404 Sun Nov 19 17:54:31 MST 1995 dyson General fixes to the vfs clustring code:

1) Make cluster buffer list be a non-malloced chain. This eliminates
yet another 'evil' M_WAITOK and generally cleans up the code.
2) Fix write clustering for ext2fs. It was just broken. Also, ffs
clustering had an efficiency problem that more bawrites were happening
than should have been.
3) Make changes to buf.h to support the above, plus remove b_pfcent
at the request of David Greenman.
Reviewed by: davidg (partially)
/freebsd-10.1-release/sys/kern/
H A Dvfs_cluster.cdiff 12404 Sun Nov 19 17:54:31 MST 1995 dyson General fixes to the vfs clustring code:

1) Make cluster buffer list be a non-malloced chain. This eliminates
yet another 'evil' M_WAITOK and generally cleans up the code.
2) Fix write clustering for ext2fs. It was just broken. Also, ffs
clustering had an efficiency problem that more bawrites were happening
than should have been.
3) Make changes to buf.h to support the above, plus remove b_pfcent
at the request of David Greenman.
Reviewed by: davidg (partially)

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