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authorDennis Zhou <dennis@kernel.org>2020-01-02 16:26:38 -0500
committerDavid Sterba <dsterba@suse.com>2020-01-20 16:40:59 +0100
commit19b2a2c71979f849cadc33af3577f739cc95e1f0 (patch)
treed39430f1c2faac2d4bb1a5207ff05f0b73a541c6 /fs/btrfs/ctree.h
parentbtrfs: limit max discard size for async discard (diff)
downloadlinux-dev-19b2a2c71979f849cadc33af3577f739cc95e1f0.tar.xz
linux-dev-19b2a2c71979f849cadc33af3577f739cc95e1f0.zip
btrfs: make max async discard size tunable
Expose max_discard_size as a tunable via sysfs and switch the current fixed maximum to the default value. Signed-off-by: Dennis Zhou <dennis@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index f58b1cfeeca6..fa6c95fdf5c6 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -469,6 +469,7 @@ struct btrfs_discard_ctl {
u64 prev_discard;
atomic_t discardable_extents;
atomic64_t discardable_bytes;
+ u64 max_discard_size;
unsigned long delay;
u32 iops_limit;
u32 kbps_limit;