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dm: use DMDEBUG macros now that they use pr_debug variants

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Now that DMDEBUG uses pr_debug and DMDEBUG_LIMIT uses
pr_debug_ratelimited cleanup DM's 2 direct pr_debug callers to use
them to get the benefit of consistent DM_FMT formatting of debugging
messages.

While doing so, dm-mpath.c:dm_report_EIO() was switched over to using
DMDEBUG_LIMIT due to the potential for error handling floods in the IO
completion path.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2020-05-14 12:55:39 -04:00
parent 49de3b7d21
commit ac75b09fc6
2 changed files with 7 additions and 7 deletions
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12
drivers/md/dm-mpath.c
View File

@ -439,7 +439,7 @@ static struct pgpath *choose_pgpath(struct multipath *m, size_t nr_bytes)
}
/*
* dm_report_EIO() is a macro instead of a function to make pr_debug()
* dm_report_EIO() is a macro instead of a function to make pr_debug_ratelimited()
* report the function name and line number of the function from which
* it has been invoked.
*/
@ -447,11 +447,11 @@ static struct pgpath *choose_pgpath(struct multipath *m, size_t nr_bytes)
do { \
struct mapped_device *md = dm_table_get_md((m)->ti->table); \
\
pr_debug("%s: returning EIO; QIFNP = %d; SQIFNP = %d; DNFS = %d\n", \
dm_device_name(md), \
test_bit(MPATHF_QUEUE_IF_NO_PATH, &(m)->flags), \
test_bit(MPATHF_SAVED_QUEUE_IF_NO_PATH, &(m)->flags), \
dm_noflush_suspending((m)->ti)); \
DMDEBUG_LIMIT("%s: returning EIO; QIFNP = %d; SQIFNP = %d; DNFS = %d", \
dm_device_name(md), \
test_bit(MPATHF_QUEUE_IF_NO_PATH, &(m)->flags), \
test_bit(MPATHF_SAVED_QUEUE_IF_NO_PATH, &(m)->flags), \
dm_noflush_suspending((m)->ti)); \
} while (0)
/*

2
drivers/md/dm.c
View File

@ -2609,7 +2609,7 @@ static int __dm_suspend(struct mapped_device *md, struct dm_table *map,
if (noflush)
set_bit(DMF_NOFLUSH_SUSPENDING, &md->flags);
else
pr_debug("%s: suspending with flush\n", dm_device_name(md));
DMDEBUG("%s: suspending with flush", dm_device_name(md));
/*
* This gets reverted if there's an error later and the targets