Merge branch pci into master

[mirror_qemu.git] / hw / 9pfs / codir.c

diff --git a/hw/9pfs/codir.c b/hw/9pfs/codir.c
index 3a257b902759b0892fd5589344dd4029a615d182..3d188284ba38b0b8e789091189777470bdb587a7 100644 (file)
--- a/hw/9pfs/codir.c
+++ b/hw/9pfs/codir.c
@@ -17,15 +17,19 @@
 #include "qemu-coroutine.h"
 #include "virtio-9p-coth.h"
 
-int v9fs_co_readdir_r(V9fsState *s, V9fsFidState *fidp, struct dirent *dent,
+int v9fs_co_readdir_r(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent *dent,
                       struct dirent **result)
 {
     int err;
+    V9fsState *s = pdu->s;
 
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
     v9fs_co_run_in_worker(
         {
             errno = 0;
-            err = s->ops->readdir_r(&s->ctx, fidp->fs.dir, dent, result);
+            err = s->ops->readdir_r(&s->ctx, &fidp->fs, dent, result);
             if (!*result && errno) {
                 err = -errno;
             } else {
@@ -35,13 +39,17 @@ int v9fs_co_readdir_r(V9fsState *s, V9fsFidState *fidp, struct dirent *dent,
     return err;
 }
 
-off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)
+off_t v9fs_co_telldir(V9fsPDU *pdu, V9fsFidState *fidp)
 {
     off_t err;
+    V9fsState *s = pdu->s;
 
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
     v9fs_co_run_in_worker(
         {
-            err = s->ops->telldir(&s->ctx, fidp->fs.dir);
+            err = s->ops->telldir(&s->ctx, &fidp->fs);
             if (err < 0) {
                 err = -errno;
             }
@@ -49,69 +57,112 @@ off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)
     return err;
 }
 
-void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset)
+void v9fs_co_seekdir(V9fsPDU *pdu, V9fsFidState *fidp, off_t offset)
 {
+    V9fsState *s = pdu->s;
+    if (v9fs_request_cancelled(pdu)) {
+        return;
+    }
     v9fs_co_run_in_worker(
         {
-            s->ops->seekdir(&s->ctx, fidp->fs.dir, offset);
+            s->ops->seekdir(&s->ctx, &fidp->fs, offset);
         });
 }
 
-void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)
+void v9fs_co_rewinddir(V9fsPDU *pdu, V9fsFidState *fidp)
 {
+    V9fsState *s = pdu->s;
+    if (v9fs_request_cancelled(pdu)) {
+        return;
+    }
     v9fs_co_run_in_worker(
         {
-            s->ops->rewinddir(&s->ctx, fidp->fs.dir);
+            s->ops->rewinddir(&s->ctx, &fidp->fs);
         });
 }
 
-int v9fs_co_mkdir(V9fsState *s, char *name, mode_t mode, uid_t uid, gid_t gid)
+int v9fs_co_mkdir(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name,
+                  mode_t mode, uid_t uid, gid_t gid, struct stat *stbuf)
 {
     int err;
     FsCred cred;
+    V9fsPath path;
+    V9fsState *s = pdu->s;
 
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
     cred_init(&cred);
     cred.fc_mode = mode;
     cred.fc_uid = uid;
     cred.fc_gid = gid;
+    v9fs_path_read_lock(s);
     v9fs_co_run_in_worker(
         {
-            err = s->ops->mkdir(&s->ctx, name, &cred);
+            err = s->ops->mkdir(&s->ctx, &fidp->path, name->data,  &cred);
             if (err < 0) {
                 err = -errno;
+            } else {
+                v9fs_path_init(&path);
+                err = v9fs_name_to_path(s, &fidp->path, name->data, &path);
+                if (!err) {
+                    err = s->ops->lstat(&s->ctx, &path, stbuf);
+                    if (err < 0) {
+                        err = -errno;
+                    }
+                }
+                v9fs_path_free(&path);
             }
         });
+    v9fs_path_unlock(s);
     return err;
 }
 
-int v9fs_co_opendir(V9fsState *s, V9fsFidState *fidp)
+int v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
 {
     int err;
+    V9fsState *s = pdu->s;
 
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
+    v9fs_path_read_lock(s);
     v9fs_co_run_in_worker(
         {
-            fidp->fs.dir = s->ops->opendir(&s->ctx, fidp->path.data);
-            if (!fidp->fs.dir) {
+            err = s->ops->opendir(&s->ctx, &fidp->path, &fidp->fs);
+            if (err < 0) {
                 err = -errno;
             } else {
                 err = 0;
             }
         });
+    v9fs_path_unlock(s);
+    if (!err) {
+        total_open_fd++;
+        if (total_open_fd > open_fd_hw) {
+            v9fs_reclaim_fd(pdu);
+        }
+    }
     return err;
 }
 
-int v9fs_co_closedir(V9fsState *s, V9fsFidState *fidp)
+int v9fs_co_closedir(V9fsPDU *pdu, V9fsFidOpenState *fs)
 {
     int err;
-    DIR *dir;
+    V9fsState *s = pdu->s;
 
-    dir = fidp->fs.dir;
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
     v9fs_co_run_in_worker(
         {
-            err = s->ops->closedir(&s->ctx, dir);
+            err = s->ops->closedir(&s->ctx, fs);
             if (err < 0) {
                 err = -errno;
             }
         });
+    if (!err) {
+        total_open_fd--;
+    }
     return err;
 }