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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-07-17 19:33:18 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-05-14 18:38:06 (GMT) |
| commit | 2fcb0c5fbaadc0ca305870e5e29304d2d46de71c (patch) | |
| tree | fe339e041ca06252227b96cfb813c8b9af91fd47 /lib | |
| parent | ec38a4cc4dac0fd38896becd618319bc5c48344f (diff) | |
| download | linux-fsl-qoriq-2fcb0c5fbaadc0ca305870e5e29304d2d46de71c.tar.xz | |
radix-tree-rt-aware.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/radix-tree.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 7811ed3..e7b61e8 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -221,12 +221,13 @@ radix_tree_node_alloc(struct radix_tree_root *root) * succeed in getting a node here (and never reach * kmem_cache_alloc) */ - rtp = &__get_cpu_var(radix_tree_preloads); + rtp = &get_cpu_var(radix_tree_preloads); if (rtp->nr) { ret = rtp->nodes[rtp->nr - 1]; rtp->nodes[rtp->nr - 1] = NULL; rtp->nr--; } + put_cpu_var(radix_tree_preloads); } if (ret == NULL) ret = kmem_cache_alloc(radix_tree_node_cachep, gfp_mask); @@ -261,6 +262,7 @@ radix_tree_node_free(struct radix_tree_node *node) call_rcu(&node->rcu_head, radix_tree_node_rcu_free); } +#ifndef CONFIG_PREEMPT_RT_FULL /* * Load up this CPU's radix_tree_node buffer with sufficient objects to * ensure that the addition of a single element in the tree cannot fail. On @@ -326,6 +328,7 @@ int radix_tree_maybe_preload(gfp_t gfp_mask) return 0; } EXPORT_SYMBOL(radix_tree_maybe_preload); +#endif /* * Return the maximum key which can be store into a |