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authorNeilBrown <neilb@suse.de>2006-01-06 00:20:13 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:34:02 -0800
commit0a27ec96b6fb1abf867e36d7b0b681d67588767a (patch)
tree4db5d9b8ef02b417fc2077d65311e2ea7cda5ce0 /include/rdma/ib_user_mad.h
parent17999be4aa408e7ff3b9d32c735649676567a3cd (diff)
[PATCH] md: improve raid10 "IO Barrier" concept
raid10 needs to put up a barrier to new requests while it does resync or other background recovery. The code for this is currently open-coded, slighty obscure by its use of two waitqueues, and not documented. This patch gathers all the related code into 4 functions, and includes a comment which (hopefully) explains what is happening. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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