Pavel Shilovsky <piastryyy@xxxxxxxxx> writes: > It is not only about writing to a locked file. It is also about any IO > against a locked file if such a file is locked through another file > handle. Right? Yes that was implied, the write was a simple example to illustrate. I'll update to make it more generic: Another important side-effect is that the locks are not advisory anymore: any IO on a locked file will always fail with EACCES, even when done from a separate file descriptor. If you have comments please provide direct text suggestion to save time. Cheers, -- Aurélien Aptel / SUSE Labs Samba Team GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3 SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg, DE GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 247165 (AG München)