Very simple function to test if a given dentry is the root of
a dentry group (mob)
---
fs/dcache.c | 6 ++++++
include/linux/dcache.h | 1 +
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/fs/dcache.c b/fs/dcache.c
index 39db354..0960b80 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3000,6 +3000,12 @@ rename_retry:
goto again;
}
+
+int dentry_is_mob_root(struct dentry *root)
+{
+ return (root->d_flags & DCACHE_MOB_ROOT);
+}
+
int dcache_new_mob(struct dentry *root)
{
struct dentry_mob *dmob, *old = NULL;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 7b1fdc1..fd137c7 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -62,6 +62,7 @@ struct dentry_mob_stat {
};
int dcache_new_mob(struct dentry *root);
+int dentry_is_mob_root(struct dentry *root);
int dcache_set_mob_size(struct dentry *de, unsigned long size);
int dcache_get_mob_stat(struct dentry *de, struct dentry_mob_stat __user *stat);
--
1.7.5.1
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