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authorDavid Howells <dhowells@redhat.com>2020-02-10 10:00:22 +0000
committerDavid Howells <dhowells@redhat.com>2021-08-27 13:24:46 +0100
commit2908f5e101e3fb1d478cff1c556966e1af816641 (patch)
tree3bfc51416024a1b1f2043872a00d6a36d45625b3 /fs/fscache/proc.c
parent185981958c920dd28e35cba7cda69486c8551781 (diff)
fscache: Add a cookie debug ID and use that in traces
Add a cookie debug ID and use that in traces and in procfiles rather than displaying the (hashed) pointer to the cookie. This is easier to correlate and we don't lose anything when interpreting oops output since that shows unhashed addresses and registers that aren't comparable to the hashed values. Changes: ver #2: - Fix the fscache_op tracepoint to handle a NULL cookie pointer. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> cc: linux-cachefs@redhat.com Link: https://lore.kernel.org/r/158861210988.340223.11688464116498247790.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/159465769844.1376105.14119502774019865432.stgit@warthog.procyon.org.uk/ Link: https://lore.kernel.org/r/160588459097.3465195.1273313637721852165.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/162431193544.2908479.17556704572948300790.stgit@warthog.procyon.org.uk/
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