diff --git a/fs/io_uring.c b/fs/io_uring.c
index 405be10da73d..a2974d560246 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1773,8 +1773,15 @@ static int io_read(struct io_kiocb *req, struct io_kiocb **nxt,
    iov_count = iov_iter_count(&iter);
    ret = rw_verify_area(READ, file, &kiocb->ki_pos, iov_count);
    if (!ret) {
+       struct inode *inode = file_inode(req->file);
+       off_t start = req->rw.ki_pos >> PAGE_SHIFT;
+       off_t end = (req->rw.ki_pos + io_size - 1) >> PAGE_SHIFT;
+       bool do_inval = false;
        ssize_t ret2;

+       if (force_nonblock && (kiocb->ki_flags & IOCB_DROPBEHIND))
+           do_inval = true;
+
        if (file->f_op->read_iter)
            ret2 = call_read_iter(file, kiocb, &iter);
        else
@@ -1795,6 +1802,9 @@ static int io_read(struct io_kiocb *req, struct io_kiocb **nxt,
        /* Catch -EAGAIN return for forced non-blocking submission */
        if (!force_nonblock || ret2 != -EAGAIN) {
            kiocb_done(kiocb, ret2, nxt, req->in_async);
+           if (force_nonblock)
+               invalidate_inode_pages2_range(inode->i_mapping,
+                       start, end);
        } else {
 copy_iov:
            ret = io_setup_async_io(req, io_size, iovec,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 98e0349adb52..647f7e38927c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -314,6 +314,7 @@ enum rw_hint {
 #define IOCB_SYNC      (1 << 5)
 #define IOCB_WRITE     (1 << 6)
 #define IOCB_NOWAIT        (1 << 7)
+#define IOCB_DROPBEHIND        (1 << 8)

 struct kiocb {
    struct file     *ki_filp;
@@ -3418,6 +3419,8 @@ static inline int kiocb_set_rw_flags(struct kiocb *ki, rwf_t flags)
        ki->ki_flags |= (IOCB_DSYNC | IOCB_SYNC);
    if (flags & RWF_APPEND)
        ki->ki_flags |= IOCB_APPEND;
+   if (flags & RWF_DROPBEHIND)
+       ki->ki_flags |= IOCB_DROPBEHIND;
    return 0;
 }

diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 379a612f8f1d..f4ac77da2429 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -299,8 +299,11 @@ typedef int __bitwise __kernel_rwf_t;
 /* per-IO O_APPEND */
 #define RWF_APPEND ((__force __kernel_rwf_t)0x00000010)

+/* drop behind cached IO */
+#define RWF_DROPBEHIND ((__force __kernel_rwf_t)0x00000020)
+
 /* mask of flags supported by the kernel */
 #define RWF_SUPPORTED  (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\
-            RWF_APPEND)
+            RWF_APPEND | RWF_DROPBEHIND)

 #endif /* _UAPI_LINUX_FS_H */