David Howells 247d65fb12 afs: Fix missing subdir edit when renamed between parent dirs ... When rename moves an AFS subdirectory between parent directories, the subdir also needs a bit of editing: the ".." entry needs updating to point to the new parent (though I don't make use of the info) and the DV needs incrementing by 1 to reflect the change of content. The server also sends a callback break notification on the subdirectory if we have one, but we can take care of recovering the promise next time we access the subdir. This can be triggered by something like: mount -t afs %example.com:xfstest.test20 /xfstest.test/ mkdir /xfstest.test/{aaa,bbb,aaa/ccc} touch /xfstest.test/bbb/ccc/d mv /xfstest.test/{aaa/ccc,bbb/ccc} touch /xfstest.test/bbb/ccc/e When the pathwalk for the second touch hits "ccc", kafs spots that the DV is incorrect and downloads it again (so the fix is not critical). Fix this, if the rename target is a directory and the old and new parents are different, by: (1) Incrementing the DV number of the target locally. (2) Editing the ".." entry in the target to refer to its new parent's vnode ID and uniquifier. Link: https://lore.kernel.org/r/3340431.1729680010@warthog.procyon.org.uk Fixes: 63a4681ff3 ("afs: Locally edit directory data for mkdir/create/unlink/...") cc: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Christian Brauner <brauner@kernel.org>		2024-10-24 13:50:27 +02:00
..
events	afs: Fix missing subdir edit when renamed between parent dirs	2024-10-24 13:50:27 +02:00
misc	NFS: trace: show TIMEDOUT instead of 0x6e	2024-09-01 10:04:55 -04:00
stages	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
bpf_probe.h	bpf: pass whole link instead of prog when triggering raw tracepoint	2024-03-19 23:05:33 -07:00
define_custom_trace.h
define_trace.h
perf.h
syscall.h
trace_custom_events.h
trace_events.h