Hello, v3 [1] had 2 minor issues which are fixed: - I was generically dividing u64 which made 32 bit arches unhappy. [2] - Uninitialized use of trim_state local variable [3] I've gone through and fixed the apparent u64 divisions which passes the make.cross build provided on the end of the series. This is based on btrfs-devel#misc-next e88411ecf657. [1] https://lore.kernel.org/linux-btrfs/cover.1574282259.git.dennis@xxxxxxxxxx/ [2] https://lore.kernel.org/linux-btrfs/201911230623.j5g9qeNZ%25lkp@xxxxxxxxx/ [3] https://lore.kernel.org/linux-btrfs/CAKwvOdn5j37AYzmoOsaSqyYdBkjqevbTrSyGQypB+G_NgxX0fQ@xxxxxxxxxxxxxx/ diffstats below: Dennis Zhou (22): bitmap: genericize percpu bitmap region iterators btrfs: rename DISCARD opt to DISCARD_SYNC btrfs: keep track of which extents have been discarded btrfs: keep track of cleanliness of the bitmap btrfs: add the beginning of async discard, discard workqueue btrfs: handle empty block_group removal btrfs: discard one region at a time in async discard btrfs: add removal calls for sysfs debug/ btrfs: make UUID/debug have its own kobject btrfs: add discard sysfs directory btrfs: track discardable extents for async discard btrfs: keep track of discardable_bytes btrfs: calculate discard delay based on number of extents btrfs: add bps discard rate limit btrfs: limit max discard size for async discard btrfs: make max async discard size tunable btrfs: have multiple discard lists btrfs: only keep track of data extents for async discard btrfs: keep track of discard reuse stats btrfs: add async discard header btrfs: increase the metadata allowance for the free_space_cache btrfs: make smaller extents more likely to go into bitmaps fs/btrfs/Makefile | 2 +- fs/btrfs/block-group.c | 56 ++- fs/btrfs/block-group.h | 30 ++ fs/btrfs/ctree.h | 52 ++- fs/btrfs/discard.c | 680 ++++++++++++++++++++++++++++++++++++ fs/btrfs/discard.h | 46 +++ fs/btrfs/disk-io.c | 15 +- fs/btrfs/extent-tree.c | 23 +- fs/btrfs/free-space-cache.c | 587 ++++++++++++++++++++++++++----- fs/btrfs/free-space-cache.h | 39 ++- fs/btrfs/inode-map.c | 13 +- fs/btrfs/scrub.c | 7 +- fs/btrfs/super.c | 39 ++- fs/btrfs/sysfs.c | 205 ++++++++++- include/linux/bitmap.h | 35 ++ mm/percpu.c | 61 +--- 16 files changed, 1737 insertions(+), 153 deletions(-) create mode 100644 fs/btrfs/discard.c create mode 100644 fs/btrfs/discard.h Thanks, Dennis
