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Subject[PATCH v2 0/2] gfs2: Stop using rhashtable_walk_peek
Here's a second version of the patch (now a patch set) to eliminate
rhashtable_walk_peek in gfs2.

The first patch introduces lockref_put_not_zero, the inverse of

The second patch eliminates rhashtable_walk_peek in gfs2. In
gfs2_glock_iter_next, the new lockref function from patch one is used to
drop a lockref count as long as the count doesn't drop to zero. This is
almost always the case; if there is a risk of dropping the last
reference, we must defer that to a work queue because dropping the last
reference may sleep.


Andreas Gruenbacher (2):
lockref: Add lockref_put_not_zero
gfs2: Stop using rhashtable_walk_peek

fs/gfs2/glock.c | 47 ++++++++++++++++++++++++++++-------------------
include/linux/lockref.h | 1 +
lib/lockref.c | 28 ++++++++++++++++++++++++++++
3 files changed, 57 insertions(+), 19 deletions(-)


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