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-rw-r--r--include/fuse_common.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/fuse_common.h b/include/fuse_common.h
index 7c2e86f..bb73d9f 100644
--- a/include/fuse_common.h
+++ b/include/fuse_common.h
@@ -106,7 +106,9 @@ struct fuse_file_info {
#define FUSE_CAP_POSIX_LOCKS (1 << 1)
/**
- * Indicates that the filesystem supports the O_TRUNC open flag
+ * Indicates that the filesystem supports the O_TRUNC open flag. If
+ * disabled, and an application specifies O_TRUNC, fuse first calls
+ * truncate() and then open() with O_TRUNC filtered out.
*
* This feature is enabled by default when supported by the kernel.
*/