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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/zfs_vfsops.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/zfs_vfsops.c')
-rw-r--r--module/zfs/zfs_vfsops.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
index d29fc6560..a2dea89b7 100644
--- a/module/zfs/zfs_vfsops.c
+++ b/module/zfs/zfs_vfsops.c
@@ -1068,7 +1068,7 @@ zfs_root(zfs_sb_t *zsb, struct inode **ipp)
}
EXPORT_SYMBOL(zfs_root);
-#ifdef HAVE_SHRINK
+#if defined(HAVE_SHRINK) || defined(HAVE_SPLIT_SHRINKER_CALLBACK)
int
zfs_sb_prune(struct super_block *sb, unsigned long nr_to_scan, int *objects)
{
@@ -1080,13 +1080,17 @@ zfs_sb_prune(struct super_block *sb, unsigned long nr_to_scan, int *objects)
};
ZFS_ENTER(zsb);
+#ifdef HAVE_SPLIT_SHRINKER_CALLBACK
+ *objects = (*shrinker->scan_objects)(shrinker, &sc);
+#else
*objects = (*shrinker->shrink)(shrinker, &sc);
+#endif
ZFS_EXIT(zsb);
return (0);
}
EXPORT_SYMBOL(zfs_sb_prune);
-#endif /* HAVE_SHRINK */
+#endif /* defined(HAVE_SHRINK) || defined(HAVE_SPLIT_SHRINKER_CALLBACK) */
/*
* Teardown the zfs_sb_t.