adc6f43b14
Previously, when we'd copy an individual file we'd synthesize a user.crtime_usec xattr with the source's creation time if we can determine it. As the creation/birth time was until recently not queriable form userspace this effectively just propagated the same xattr on the source to the same xattr on the destination. However, current kernels now allow to query the birthtime using statx() and we do make use of that now. Which means that suddenly we started synthesizing these xattrs much more regularly. Doing this actually does make sense, but only in very few cases: not for the typical regular files we copy, but certainly when dealing with disk images. Hence, let's keep this kind of propagation, but let's make it a flag and default to off. Then turn it on whenever we deal with disk images, and leave it off otherwise. This is particularly relevant as overlayfs combining a real fs, and a tmpfs on top will result in EOPNOTSUPP when it is attempted to open a file with xattrs for writing, as tmpfs does not support xattrs, and hence the copy-up cannot work. Hence, let's avoid synthesizing this needlessly, to increase compat with overlayfs. |
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.github/ISSUE_TEMPLATE | ||
.lgtm/cpp-queries | ||
.mkosi | ||
catalog | ||
coccinelle | ||
docs | ||
factory/etc | ||
hwdb | ||
man | ||
modprobe.d | ||
network | ||
po | ||
presets | ||
rules | ||
semaphoreci | ||
shell-completion | ||
src | ||
sysctl.d | ||
sysusers.d | ||
test | ||
tmpfiles.d | ||
tools | ||
travis-ci | ||
units | ||
xorg | ||
.ctags | ||
.dir-locals.el | ||
.editorconfig | ||
.gitattributes | ||
.gitignore | ||
.lgtm.yml | ||
.mailmap | ||
.travis.yml | ||
.vimrc | ||
.ycm_extra_conf.py | ||
configure | ||
LICENSE.GPL2 | ||
LICENSE.LGPL2.1 | ||
Makefile | ||
meson.build | ||
meson_options.txt | ||
mkosi.build | ||
mkosi.default | ||
NEWS | ||
README | ||
README.md | ||
TODO | ||
zanata.xml |
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