Add __weak sync_file_range()

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/helpers.c b/helpers.c
index 9b1f3e90468f58bc3e1f143d0fdbb29b3ae19573..779f9fbe9195d2a750788b34487e13ac24a588b9 100644 (file)
--- a/helpers.c
+++ b/helpers.c
@@ -29,3 +29,9 @@ int __weak clock_gettime(clockid_t clk_id, struct timespec *ts)
 
        return ret;
 }
+
+int __weak sync_file_range(int fd, off64_t offset, off64_t nbytes,
+                          unsigned int flags)
+{
+       return 0;
+}

diff --git a/helpers.h b/helpers.h
index 4f8cc0ce2f87bba511baebbfc13df02b52d92b13..8307c43af3136dea29b91ffdb68894317f864b21 100644 (file)
--- a/helpers.h
+++ b/helpers.h
@@ -9,5 +9,7 @@ extern int __weak posix_memalign(void **ptr, size_t align, size_t size);
 extern int __weak posix_fallocate(int fd, off_t offset, off_t len);
 extern int __weak inet_aton(const char *cp, struct in_addr *inp);
 extern int __weak clock_gettime(clockid_t clk_id, struct timespec *ts);
+extern int __weak sync_file_range(int fd, off64_t offset, off64_t nbytes,
+                                       unsigned int flags);
 
 #endif