On Thu, Oct 20, 2022 at 16:58:56 -0500, Jonathon Jongsma wrote: > Preparatory step for caching nbdkit capabilities. This patch implements > the newData and isValid virFileCacheHandlers callback functions. > > Signed-off-by: Jonathon Jongsma <jjongsma@xxxxxxxxxx> > --- > src/qemu/qemu_nbdkit.c | 93 +++++++++++++++++++++++++++++++++++++++++- > src/qemu/qemu_nbdkit.h | 4 ++ > 2 files changed, 96 insertions(+), 1 deletion(-) > > diff --git a/src/qemu/qemu_nbdkit.c b/src/qemu/qemu_nbdkit.c > index 5de1021d89..9ab048e9e1 100644 > --- a/src/qemu/qemu_nbdkit.c > +++ b/src/qemu/qemu_nbdkit.c > @@ -202,7 +202,7 @@ qemuNbdkitGetDirMtime(const char *moddir) > } > > > -G_GNUC_UNUSED static void > +static void > qemuNbdkitCapsQuery(qemuNbdkitCaps *caps) > { > struct stat st; > @@ -241,3 +241,94 @@ qemuNbdkitCapsSet(qemuNbdkitCaps *nbdkitCaps, > { > ignore_value(virBitmapSetBit(nbdkitCaps->flags, flag)); > } > + > + > +static bool > +virNbkditCapsCheckModdir(const char *moddir, > + time_t expectedMtime) > +{ > + time_t mtime = qemuNbdkitGetDirMtime(moddir); > + > + if (mtime != expectedMtime) { > + VIR_DEBUG("Outdated capabilities for nbdkit: module " > + "directory '%s' changed (%lld vs %lld)", Preferrably don't use linebreaks in debug/error messages for better greppability even if it exceeds the "recomended" line lenght. (more instances in this patch). Reviewed-by: Peter Krempa <pkrempa@xxxxxxxxxx>