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(parent: feb15dc) | patch
idr: add idr_layer->prefix
authorTejun Heo <tj@kernel.org>
Thu, 28 Feb 2013 01:05:07 +0000 (17:05 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 28 Feb 2013 03:10:20 +0000 (19:10 -0800)
commit19994f7712b2373bc86ca4b4ceaa6eb0436ff276
tree268bbe9049d9370d5b644dfde51fc4a8942bae3btree | snapshot
parentfeb15dc2b44bc1887fe48d15bc38e93b9c03599dcommit | diff
idr: add idr_layer->prefix

Add a field which carries the prefix of ID the idr_layer covers.  This
will be used to implement lookup hint.

This patch doesn't make use of the new field and doesn't introduce any
behavior difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/idr.h diff | blob | history
lib/idr.c diff | blob | history
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