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| author | David Howells <dhowells@redhat.com> | 2020-02-10 10:00:22 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2021-08-27 13:24:46 +0100 |
| commit | 2908f5e101e3fb1d478cff1c556966e1af816641 (patch) | |
| tree | 3bfc51416024a1b1f2043872a00d6a36d45625b3 /fs/fscache/object-list.c | |
| parent | 185981958c920dd28e35cba7cda69486c8551781 (diff) | |
| download | linux-2908f5e101e3fb1d478cff1c556966e1af816641.tar.gz | |
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/
Diffstat (limited to 'fs/fscache/object-list.c')
| -rw-r--r-- | fs/fscache/object-list.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c index e106a1a1600d..1a0dc32c0a33 100644 --- a/fs/fscache/object-list.c +++ b/fs/fscache/object-list.c @@ -170,7 +170,7 @@ static int fscache_objlist_show(struct seq_file *m, void *v) if ((unsigned long) v == 1) { seq_puts(m, "OBJECT PARENT STAT CHLDN OPS OOP IPR EX READS" " EM EV FL S" - " | NETFS_COOKIE_DEF TY FL NETFS_DATA"); + " | COOKIE NETFS_COOKIE_DEF TY FL NETFS_DATA"); if (config & (FSCACHE_OBJLIST_CONFIG_KEY | FSCACHE_OBJLIST_CONFIG_AUX)) seq_puts(m, " "); @@ -189,7 +189,7 @@ static int fscache_objlist_show(struct seq_file *m, void *v) if ((unsigned long) v == 2) { seq_puts(m, "======== ======== ==== ===== === === === == =====" " == == == =" - " | ================ == == ================"); + " | ======== ================ == === ================"); if (config & (FSCACHE_OBJLIST_CONFIG_KEY | FSCACHE_OBJLIST_CONFIG_AUX)) seq_puts(m, " ================"); @@ -231,9 +231,9 @@ static int fscache_objlist_show(struct seq_file *m, void *v) } seq_printf(m, - "%8x %8x %s %5u %3u %3u %3u %2u %5u %2lx %2lx %2lx %1x | ", + "%08x %08x %s %5u %3u %3u %3u %2u %5u %2lx %2lx %2lx %1x | ", obj->debug_id, - obj->parent ? obj->parent->debug_id : -1, + obj->parent ? obj->parent->debug_id : UINT_MAX, obj->state->short_name, obj->n_children, obj->n_ops, @@ -246,7 +246,7 @@ static int fscache_objlist_show(struct seq_file *m, void *v) obj->flags, work_busy(&obj->work)); - if (fscache_use_cookie(obj)) { + if (obj->cookie) { uint16_t keylen = 0, auxlen = 0; switch (cookie->type) { @@ -263,7 +263,8 @@ static int fscache_objlist_show(struct seq_file *m, void *v) break; } - seq_printf(m, "%-16s %s %2lx %16p", + seq_printf(m, "%08x %-16s %s %3lx %16p", + cookie->debug_id, cookie->def->name, type, cookie->flags, @@ -292,7 +293,6 @@ static int fscache_objlist_show(struct seq_file *m, void *v) } seq_puts(m, "\n"); - fscache_unuse_cookie(obj); } else { seq_puts(m, "<no_netfs>\n"); } |