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authorTim Chase <[email protected]>2014-12-18 10:08:47 -0600
committerBrian Behlendorf <[email protected]>2015-01-20 14:07:59 -0800
commit3c832b8cc13bb4e570b317c30b146bb072e08f58 (patch)
treebe0f5c00b2084505a7028c3474c5a845cfb92a27 /module/zfs/zpl_super.c
parent6e9710f7c33a7440904b39fb4e6b68b3325cfeca (diff)
Linux 3.12 compat: split shrinker has s_shrink
The split count/scan shrinker callbacks introduced in 3.12 broke the test for HAVE_SHRINK, effectively disabling the per-superblock shrinkers. This patch re-enables the per-superblock shrinkers when the split shrinker callbacks have been detected. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2975
Diffstat (limited to 'module/zfs/zpl_super.c')
-rw-r--r--module/zfs/zpl_super.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/module/zfs/zpl_super.c b/module/zfs/zpl_super.c
index 410030461..aa234bcff 100644
--- a/module/zfs/zpl_super.c
+++ b/module/zfs/zpl_super.c
@@ -268,7 +268,7 @@ zpl_kill_sb(struct super_block *sb)
#endif /* HAVE_S_INSTANCES_LIST_HEAD */
}
-#ifdef HAVE_SHRINK
+#if defined(HAVE_SHRINK) || defined(HAVE_SPLIT_SHRINKER_CALLBACK)
/*
* Linux 3.1 - 3.x API
*
@@ -288,17 +288,17 @@ zpl_prune_sb(struct super_block *sb, void *arg)
error = -zfs_sb_prune(sb, *(unsigned long *)arg, &objects);
ASSERT3S(error, <=, 0);
}
-#endif /* HAVE_SHRINK */
+#endif /* defined(HAVE_SHRINK) || defined(HAVE_SPLIT_SHRINKER_CALLBACK) */
void
zpl_prune_sbs(int64_t bytes_to_scan, void *private)
{
-#ifdef HAVE_SHRINK
+#if defined(HAVE_SHRINK) || defined(HAVE_SPLIT_SHRINKER_CALLBACK)
unsigned long nr_to_scan = (bytes_to_scan / sizeof (znode_t));
iterate_supers_type(&zpl_fs_type, zpl_prune_sb, &nr_to_scan);
kmem_reap();
-#endif /* HAVE_SHRINK */
+#endif /* defined(HAVE_SHRINK) || defined(HAVE_SPLIT_SHRINKER_CALLBACK) */
}
#ifdef HAVE_NR_CACHED_OBJECTS