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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 19:43:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 19:43:53 -0700
commitb33ce442993865180292df2a314ee5251ba38b50 (patch)
tree004b703ea3cd19c932393086fe9cde96e8db8de7 /lib
parent7a48837732f87a574ee3e1855927dc250117f565 (diff)
parente84987a1f941b8e2e3173bb38510ddf25cc8c7f0 (diff)
Merge branch 'for-3.15/drivers' of git://git.kernel.dk/linux-block
Pull block driver update from Jens Axboe: "On top of the core pull request, here's the pull request for the driver related changes for 3.15. It contains: - Improvements for msi-x registration for block drivers (mtip32xx, skd, cciss, nvme) from Alexander Gordeev. - A round of cleanups and improvements for drbd from Andreas Gruenbacher and Rashika Kheria. - A round of clanups and improvements for bcache from Kent. - Removal of sleep_on() and friends in DAC960, ataflop, swim3 from Arnd Bergmann. - Bug fix for a bug in the mtip32xx async completion code from Sam Bradshaw. - Bug fix for accidentally bouncing IO on 32-bit platforms with mtip32xx from Felipe Franciosi" * 'for-3.15/drivers' of git://git.kernel.dk/linux-block: (103 commits) bcache: remove nested function usage bcache: Kill bucket->gc_gen bcache: Kill unused freelist bcache: Rework btree cache reserve handling bcache: Kill btree_io_wq bcache: btree locking rework bcache: Fix a race when freeing btree nodes bcache: Add a real GC_MARK_RECLAIMABLE bcache: Add bch_keylist_init_single() bcache: Improve priority_stats bcache: Better alloc tracepoints bcache: Kill dead cgroup code bcache: stop moving_gc marking buckets that can't be moved. bcache: Fix moving_pred() bcache: Fix moving_gc deadlocking with a foreground write bcache: Fix discard granularity bcache: Fix another bug recovering from unclean shutdown bcache: Fix a bug recovering from unclean shutdown bcache: Fix a journalling reclaim after recovery bug bcache: Fix a null ptr deref in journal replay ...
Diffstat (limited to 'lib')
-rw-r--r--lib/idr.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/idr.c b/lib/idr.c
index bfe4db4e165f..1ba4956bfbff 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -869,6 +869,16 @@ void idr_init(struct idr *idp)
}
EXPORT_SYMBOL(idr_init);
+static int idr_has_entry(int id, void *p, void *data)
+{
+ return 1;
+}
+
+bool idr_is_empty(struct idr *idp)
+{
+ return !idr_for_each(idp, idr_has_entry, NULL);
+}
+EXPORT_SYMBOL(idr_is_empty);
/**
* DOC: IDA description