> Gesendet: Montag, 29. September 2014 um 20:03 Uhr > Von: "Yann Droneaud" <[email protected]> > An: "Heinrich Schuchardt" <[email protected]> > Cc: "Greg Kroah-Hartman" <[email protected]>, "Colin Cross" > <[email protected]>, "John Stultz" <[email protected]>, "Daniel Vetter" > <[email protected]>, "Sumit Semwal" <[email protected]>, "Masanari Iida" > <[email protected]>, "Daeseok Youn" <[email protected]>, "Maarten > Lankhorst" <[email protected]>, [email protected], > [email protected], "Yann Droneaud" <[email protected]> > Betreff: Re: [PATCH 1/1] staging : android : sync : get_unused_fd > > Hi, > > Le samedi 27 septembre 2014 à 10:52 +0200, Heinrich Schuchardt a écrit : > > sync.h recommends to use get_unused_fd which does not set > > O_CLOEXEC while the rest of the android tree uses > > get_unused_fd_flags and sets O_CLOEXEC. > > > > The patch adjust the comment. > > > > I'd like to add this patch to my patchset which try to remove > get_unused_fd() in favor of get_unused_fd_flags(): > > http://lkml.kernel.org/r/[email protected] > > But having O_CLOEXEC is welcome but not strictly needed, > so I think the patch should be reworked to not require O_CLOEXEC.
All calls to get_unused_fd_flags() in directory drivers/staging/android use O_CLOEXEC. That is why I guess it is correct to put it into the sync.h comment too. Your patch set inspired me to look for further usages of get_unused_fd(). But I think the patch below is valid even if get_unused_fd() should not be removed from the kernel. Best regards Heinrich > > > Signed-off-by: Heinrich Schuchardt <[email protected]> > > --- > > drivers/staging/android/sync.h | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h > > index 66b0f43..a21b79f 100644 > > --- a/drivers/staging/android/sync.h > > +++ b/drivers/staging/android/sync.h > > @@ -293,7 +293,8 @@ void sync_fence_put(struct sync_fence *fence); > > * @fence: fence to install > > * @fd: file descriptor in which to install the fence > > * > > - * Installs @fence into @fd. @fd's should be acquired through > > get_unused_fd(). > > + * Installs @fence into @fd. @fd's should be acquired through > > + * get_unused_fd_flags(O_CLOEXEC). > > I think it will be better to have something like: > > get_unused_fd_flags(flags), with flags either provided by userspace > or set to O_CLOEXEC. > > > > */ > > void sync_fence_install(struct sync_fence *fence, int fd); > > > > Regards. > > -- > Yann Droneaud > OPTEYA > > > _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
