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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:23 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:18 +1100
commitfe15ce446beb3a33583af81ffe6c9d01a75314ed (patch)
treebc8af66b6dd2d0f21a2a3f48a19975ae2cdbae4e /include/linux/dcache.h
parent5eef7fa905c814826f518aca2d414ca77508ce30 (diff)
downloadop-kernel-dev-fe15ce446beb3a33583af81ffe6c9d01a75314ed.zip
op-kernel-dev-fe15ce446beb3a33583af81ffe6c9d01a75314ed.tar.gz
fs: change d_delete semantics
Change d_delete from a dentry deletion notification to a dentry caching advise, more like ->drop_inode. Require it to be constant and idempotent, and not take d_lock. This is how all existing filesystems use the callback anyway. This makes fine grained dentry locking of dput and dentry lru scanning much simpler. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'include/linux/dcache.h')
-rw-r--r--include/linux/dcache.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index fff9755..cbfc956 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -133,9 +133,9 @@ enum dentry_d_lock_class
struct dentry_operations {
int (*d_revalidate)(struct dentry *, struct nameidata *);
- int (*d_hash) (struct dentry *, struct qstr *);
- int (*d_compare) (struct dentry *, struct qstr *, struct qstr *);
- int (*d_delete)(struct dentry *);
+ int (*d_hash)(struct dentry *, struct qstr *);
+ int (*d_compare)(struct dentry *, struct qstr *, struct qstr *);
+ int (*d_delete)(const struct dentry *);
void (*d_release)(struct dentry *);
void (*d_iput)(struct dentry *, struct inode *);
char *(*d_dname)(struct dentry *, char *, int);
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