diff options
| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-05-06 18:58:10 +0200 |
|---|---|---|
| committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-05-26 11:18:13 +0200 |
| commit | dc00a94df4a06764d822b29cbf35b532343821c8 (patch) | |
| tree | e7564cd1b9db1e8019cf1d4a458922c0de245b04 /libdiskfs/diskfs.h | |
| parent | b793108b09138edf0a963d9e3107eb400ee27011 (diff) | |
libdiskfs: lock-less reference counting for peropen objects
* libdiskfs/diskfs.h (struct peropen): Use refcount_t for field refcnt.
* libdiskfs/peropen-make.c (diskfs_make_peropen): Initialize refcnt.
* libdiskfs/peropen-rele.c (diskfs_release_peropen): Adjust accordingly.
* libdiskfs/protid-make.c (diskfs_start_protid): Likewise. Also, the
node must no longer be locked, adjust comment accordingly.
(diskfs_create_protid): Likewise.
Diffstat (limited to 'libdiskfs/diskfs.h')
| -rw-r--r-- | libdiskfs/diskfs.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libdiskfs/diskfs.h b/libdiskfs/diskfs.h index 8151ddc1..ae1a1502 100644 --- a/libdiskfs/diskfs.h +++ b/libdiskfs/diskfs.h @@ -28,6 +28,7 @@ #include <hurd/iohelp.h> #include <idvec.h> #include <features.h> +#include <refcount.h> #ifdef DISKFS_DEFINE_EXTERN_INLINE #define DISKFS_EXTERN_INLINE @@ -57,7 +58,7 @@ struct peropen { int filepointer; int lock_status; - int refcnt; + refcount_t refcnt; int openstat; struct node *np; @@ -792,12 +793,12 @@ diskfs_create_node (struct node *dir, const char *name, mode_t mode, struct dirstat *ds); /* Create and return a protid for an existing peropen PO in CRED, - referring to user USER. The node PO->np must be locked. */ + referring to user USER. */ error_t diskfs_create_protid (struct peropen *po, struct iouser *user, struct protid **cred); /* Build and return in CRED a protid which has no user identification, for - peropen PO. The node PO->np must be locked. */ + peropen PO. */ error_t diskfs_start_protid (struct peropen *po, struct protid **cred); /* Finish building protid CRED started with diskfs_start_protid; |