[Qemu-devel] [PATCH 09/22] 9pfs: remove dead code

[Wei Liu]

Some structures virtio-9p.h have been unused since 2011 when relevant
functions switched to use coroutines.

The declaration of pdu_packunpack and function do_pdu_unpack are
useless.

The function virtio_9p_set_fd_limit is unused.

Signed-off-by: Wei Liu <address@hidden>
---
 hw/9pfs/virtio-9p.c | 11 ---------
 hw/9pfs/virtio-9p.h | 68 -----------------------------------------------------
 2 files changed, 79 deletions(-)

diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index 30ff828..084fa6a 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -3287,14 +3287,3 @@ void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq)
     }
     free_pdu(s, pdu);
 }
-
-static void __attribute__((__constructor__)) virtio_9p_set_fd_limit(void)
-{
-    struct rlimit rlim;
-    if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) {
-        fprintf(stderr, "Failed to get the resource limit\n");
-        exit(1);
-    }
-    open_fd_hw = rlim.rlim_cur - MIN(400, rlim.rlim_cur/3);
-    open_fd_rc = rlim.rlim_cur/2;
-}
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index ac4cb00..3c78d3c 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -227,65 +227,6 @@ typedef struct V9fsState
     V9fsConf fsconf;
 } V9fsState;
 
-typedef struct V9fsStatState {
-    V9fsPDU *pdu;
-    size_t offset;
-    V9fsStat v9stat;
-    V9fsFidState *fidp;
-    struct stat stbuf;
-} V9fsStatState;
-
-typedef struct V9fsOpenState {
-    V9fsPDU *pdu;
-    size_t offset;
-    int32_t mode;
-    V9fsFidState *fidp;
-    V9fsQID qid;
-    struct stat stbuf;
-    int iounit;
-} V9fsOpenState;
-
-typedef struct V9fsReadState {
-    V9fsPDU *pdu;
-    size_t offset;
-    int32_t count;
-    int32_t total;
-    int64_t off;
-    V9fsFidState *fidp;
-    struct iovec iov[128]; /* FIXME: bad, bad, bad */
-    struct iovec *sg;
-    off_t dir_pos;
-    struct dirent *dent;
-    struct stat stbuf;
-    V9fsString name;
-    V9fsStat v9stat;
-    int32_t len;
-    int32_t cnt;
-    int32_t max_count;
-} V9fsReadState;
-
-typedef struct V9fsWriteState {
-    V9fsPDU *pdu;
-    size_t offset;
-    int32_t len;
-    int32_t count;
-    int32_t total;
-    int64_t off;
-    V9fsFidState *fidp;
-    struct iovec iov[128]; /* FIXME: bad, bad, bad */
-    struct iovec *sg;
-    int cnt;
-} V9fsWriteState;
-
-typedef struct V9fsMkState {
-    V9fsPDU *pdu;
-    size_t offset;
-    V9fsQID qid;
-    struct stat stbuf;
-    V9fsString name;
-    V9fsString fullname;
-} V9fsMkState;
-
 /* 9p2000.L open flags */
 #define P9_DOTL_RDONLY        00000000
 #define P9_DOTL_WRONLY        00000001
@@ -345,15 +286,6 @@ typedef struct V9fsGetlock
 extern int open_fd_hw;
 extern int total_open_fd;
 
-size_t pdu_packunpack(void *addr, struct iovec *sg, int sg_count,
-                      size_t offset, size_t size, int pack);
-
-static inline size_t do_pdu_unpack(void *dst, struct iovec *sg, int sg_count,
-                        size_t offset, size_t size)
-{
-    return pdu_packunpack(dst, sg, sg_count, offset, size, 0);
-}
-
 static inline void v9fs_path_write_lock(V9fsState *s)
 {
     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {
-- 
2.1.4