fs/vfs: skip uio logic if only one iovcnt in slot

to improve the performance Signed-off-by: chao an <[email protected]>
apache · Jan 22, 2025 · a30f976 · a30f976
1 parent 98f9218
commit a30f976
Show file tree

Hide file tree

Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/fs/vfs/fs_read.c b/fs/vfs/fs_read.c
@@ -182,7 +182,7 @@ ssize_t file_readv(FAR struct file *filep,
 
   else if (inode != NULL && inode->u.i_ops)
     {
-      if (inode->u.i_ops->readv)
+      if (iovcnt > 1 && inode->u.i_ops->readv)
         {
           struct uio uio;
 

diff --git a/fs/vfs/fs_write.c b/fs/vfs/fs_write.c
@@ -160,7 +160,7 @@ ssize_t file_writev(FAR struct file *filep,
   inode = filep->f_inode;
   if (inode != NULL && inode->u.i_ops)
     {
-      if (inode->u.i_ops->writev)
+      if (iovcnt > 1 && inode->u.i_ops->writev)
         {
           struct uio uio;