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Historically hostfs did not open directories on the host filesystem for performance and memory reasons. But it turned out that this optimization has a drawback. Calling fsync() on a hostfs directory returns immediately with -EINVAL as fsync is not implemented. While this is behavior is strictly speaking correct common userspace like dpkg(1) stumbles over that and makes it impossible to use hostfs as root filesystem. The fix is easy, wire up the existing host open/fsync functions to the directory file operations. Reported-by: Daniel Gröber <dxld@darkboxed.org> Signed-off-by: Richard Weinberger <richard@nod.at> |
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| hostfs_kern.c | ||
| hostfs_user.c | ||
| hostfs.h | ||
| Makefile | ||