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port: fsync(2) on a POSIX shm fd returns EINVAL on FreeBSD
[lttng-ust.git]
/
libringbuffer
/
shm.c
diff --git
a/libringbuffer/shm.c
b/libringbuffer/shm.c
index 566ed467fe2f715bc60f56449b222964c8b51acd..1ac59f9eee138c2744a5ada5bd58c05476de9800 100644
(file)
--- a/
libringbuffer/shm.c
+++ b/
libringbuffer/shm.c
@@
-149,12
+149,14
@@
struct shm_object *_shm_object_table_alloc_shm(struct shm_object_table *table,
PERROR("zero_file");
goto error_zero_file;
}
PERROR("zero_file");
goto error_zero_file;
}
+
/*
* Also ensure the file metadata is synced with the storage by using
/*
* Also ensure the file metadata is synced with the storage by using
- * fsync(2).
+ * fsync(2). Some platforms don't allow fsync on POSIX shm fds, ignore
+ * EINVAL accordingly.
*/
ret = fsync(shmfd);
*/
ret = fsync(shmfd);
- if (ret) {
+ if (ret
&& errno != EINVAL
) {
PERROR("fsync");
goto error_fsync;
}
PERROR("fsync");
goto error_fsync;
}
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