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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/discard.h
parent4aa9ad520398bf9cef70fc9c363567da44312045 (diff)
downloadlwn-19b2a2c71979f849cadc33af3577f739cc95e1f0.tar.gz
lwn-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/discard.h')
-rw-r--r--fs/btrfs/discard.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/discard.h b/fs/btrfs/discard.h
index 562c60fab77a..f9445ee5dcc3 100644
--- a/fs/btrfs/discard.h
+++ b/fs/btrfs/discard.h
@@ -10,7 +10,7 @@ struct btrfs_discard_ctl;
struct btrfs_block_group;
/* Discard size limits */
-#define BTRFS_ASYNC_DISCARD_MAX_SIZE (SZ_64M)
+#define BTRFS_ASYNC_DISCARD_DEFAULT_MAX_SIZE (SZ_64M)
/* Work operations */
void btrfs_discard_cancel_work(struct btrfs_discard_ctl *discard_ctl,