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authorKristian Hoegsberg <krh@redhat.com>2007-07-15 23:37:24 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:34 -0700
commit96d7fa421e6424ad9ef6d1d039375dc2edb63fe8 (patch)
treeba8a8200bda4576e1e4dcce2ff27a7a7a94723a2 /include/linux/reiserfs_fs_sb.h
parentde7d4f0e1172a72277d660fa0be59654ea02bed0 (diff)
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lib: add idr_for_each()
This patch adds an iterator function for the idr data structure. Compared to just iterating through the idr with an integer and idr_find, this iterator is (almost, but not quite) linear in the number of elements, as opposed to the number of integers in the range covered by the idr. This makes a difference for sparse idrs, but more importantly, it's a nicer way to iterate through the elements. The drm subsystem is moving to idr for tracking contexts and drawables, and with this change, we can use the idr exclusively for tracking these resources. [akpm@linux-foundation.org: fix comment] Signed-off-by: Kristian Hoegsberg <krh@redhat.com> Cc: Tejun Heo <htejun@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/reiserfs_fs_sb.h')
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