When this flag is set, operations that update an existing kevent will
not change the udata field. This can be used to NOTE_TRIGGER or
EV_{EN,DIS}ABLE events without overwriting the stashed pointer.
Reviewed by: Domagoj Stolfa <domagoj.stolfa@gmail.com>
Obtained from: CheriBSD
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D30286
vnode_fd and kqfd are both shared among multiple CU; define them exactly
once.
In the case of vnode_fd, it was simply the declaration that needed
correction.
-fno-common will become the default in GCC10/LLVM11.
MFC after: 3 days
After r337820, which "corrected" some spaces-instead-of-tab whitespace
issues in the libkqueue tests, jmg@ pointed out that these files were
originally space-based, not tab-spaced, and so the correction should
have been to get rid of the tabs that had been introduced in previous
changes, not the spaces. This change does that. This is a whitespace
only change; no functional change is intended.
Reported by: jmg@
MFC after: 3 days
Sponsored by: Dell EMC Isilon
This is being done to clearly distinguish the libkqueue tests
from the (soon to be imported) NetBSD tests.
MFC after: 58 days
Sponsored by: EMC / Isilon Storage Division
