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authorDave Reisner <dreisner@archlinux.org>2013-01-07 01:08:00 +0100
committerAllan McRae <allan@archlinux.org>2013-02-16 02:06:43 +0100
commit26a79cb29d279c529d58c62b7ad9c103c808d218 (patch)
tree625025456d32e3f4b5b1f90072062a7958f32f09 /m4
parent8fe8233dfa9c7827371168158784311cffb97556 (diff)
downloadpacman-26a79cb29d279c529d58c62b7ad9c103c808d218.tar.gz
pacman-26a79cb29d279c529d58c62b7ad9c103c808d218.tar.xz
libalpm: never attempt to remove a mountpoint
Arch Linux typically runs into this with /sys when upgrading the filesystem package in build chroots, but LXC users might also run into this, since their /sys is shared from the host and must, for security reasons, be mounted RO. I've neglected to add any tests for this because they would require root in order to run. Current tests all pass with this patch and I've confirmed the desired behavior in a VM. Incidentally, the first hunk of this patch (skipping can_remove_file checks for directories) resolves the case of API mountpoints being removed since they eventually fall into unlink_file and fail with "contains files". However, this patch should still be the Right Thing To Do™, as we can't possibly remove a directory that is also a mountpoint. Signed-off-by: Dave Reisner <dreisner@archlinux.org> [Allan] Do not skip checking if directories can be removed. Instead test if directories are mountpoints in can_remove_file. Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'm4')
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