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netdev/tree_selection |
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Guessing tree name failed - patch did not apply, async
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bpf/vmtest-bpf-PR |
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PR summary
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bpf/vmtest-bpf-VM_Test-2 |
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bpf/vmtest-bpf-VM_Test-42 |
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Logs for x86_64-llvm-18 / veristat
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@@ -1187,6 +1187,14 @@ static int fuse_encode_fh(struct inode *inode, u32 *fh, int *max_len,
nodeid = get_fuse_inode(inode)->nodeid;
generation = inode->i_generation;
+#ifdef CONFIG_FUSE_BPF
+ /* TODO: Does it make sense to support this in some cases? */
+ if (!nodeid && get_fuse_inode(inode)->backing_inode) {
+ *max_len = 0;
+ return FILEID_INVALID;
+ }
+#endif
+
fh[0] = (u32)(nodeid >> 32);
fh[1] = (u32)(nodeid & 0xffffffff);
fh[2] = generation;
In the future, we may choose to support these, but it poses some challenges. In order to create a disconnected dentry/inode, we'll need to encode the mountpoint and bpf into the file_handle, which means we'd need a stable representation of them. This also won't hold up to cases where the bpf is not stateless. One possibility is registering bpf programs and mounts in a specific order, so they can be assigned consistent ids we can use in the file_handle. We can defer to the lower filesystem for the lower inode's representation in the file_handle. Signed-off-by: Daniel Rosenberg <drosen@google.com> --- fs/fuse/inode.c | 8 ++++++++ 1 file changed, 8 insertions(+)