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-rw-r--r--include/linux/blkdev.h10
-rw-r--r--include/linux/falloc.h3
2 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 181a0deadc9e..71c6b4ac5bb8 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -388,6 +388,9 @@ struct queue_limits {
unsigned int max_user_discard_sectors;
unsigned int max_secure_erase_sectors;
unsigned int max_write_zeroes_sectors;
+ unsigned int max_wzeroes_unmap_sectors;
+ unsigned int max_hw_wzeroes_unmap_sectors;
+ unsigned int max_user_wzeroes_unmap_sectors;
unsigned int max_hw_zone_append_sectors;
unsigned int max_zone_append_sectors;
unsigned int discard_granularity;
@@ -1047,6 +1050,7 @@ static inline void blk_queue_disable_secure_erase(struct request_queue *q)
static inline void blk_queue_disable_write_zeroes(struct request_queue *q)
{
q->limits.max_write_zeroes_sectors = 0;
+ q->limits.max_wzeroes_unmap_sectors = 0;
}
/*
@@ -1383,6 +1387,12 @@ static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev)
return bdev_limits(bdev)->max_write_zeroes_sectors;
}
+static inline unsigned int
+bdev_write_zeroes_unmap_sectors(struct block_device *bdev)
+{
+ return bdev_limits(bdev)->max_wzeroes_unmap_sectors;
+}
+
static inline bool bdev_nonrot(struct block_device *bdev)
{
return blk_queue_nonrot(bdev_get_queue(bdev));
diff --git a/include/linux/falloc.h b/include/linux/falloc.h
index 3f49f3df6af5..7c38c6b76b60 100644
--- a/include/linux/falloc.h
+++ b/include/linux/falloc.h
@@ -36,7 +36,8 @@ struct space_resv {
FALLOC_FL_COLLAPSE_RANGE | \
FALLOC_FL_ZERO_RANGE | \
FALLOC_FL_INSERT_RANGE | \
- FALLOC_FL_UNSHARE_RANGE)
+ FALLOC_FL_UNSHARE_RANGE | \
+ FALLOC_FL_WRITE_ZEROES)
/* on ia32 l_start is on a 32-bit boundary */
#if defined(CONFIG_X86_64)