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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/tools/rbd_ggate/Watcher.cc | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/rbd_ggate/Watcher.cc')
-rw-r--r-- | src/tools/rbd_ggate/Watcher.cc | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/tools/rbd_ggate/Watcher.cc b/src/tools/rbd_ggate/Watcher.cc new file mode 100644 index 000000000..57b3f960e --- /dev/null +++ b/src/tools/rbd_ggate/Watcher.cc @@ -0,0 +1,48 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#include "common/debug.h" +#include "common/errno.h" +#include "Driver.h" +#include "Watcher.h" + +#define dout_context g_ceph_context +#define dout_subsys ceph_subsys_rbd +#undef dout_prefix +#define dout_prefix *_dout << "rbd::ggate::Watcher: " << this \ + << " " << __func__ << ": " + +namespace rbd { +namespace ggate { + +Watcher::Watcher(Driver *drv, librados::IoCtx &ioctx, librbd::Image &image, + size_t size) + : m_drv(drv), m_ioctx(ioctx), m_image(image), m_size(size) { +} + +void Watcher::handle_notify() { + dout(20) << dendl; + + librbd::image_info_t info; + + if (m_image.stat(info, sizeof(info)) == 0) { + size_t new_size = info.size; + + if (new_size != m_size) { + int r = m_drv->resize(new_size); + if (r < 0) { + derr << "resize failed: " << cpp_strerror(r) << dendl; + m_drv->shut_down(); + } + r = m_image.invalidate_cache(); + if (r < 0) { + derr << "invalidate rbd cache failed: " << cpp_strerror(r) << dendl; + m_drv->shut_down(); + } + m_size = new_size; + } + } +} + +} // namespace ggate +} // namespace rbd |