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block: Kill gfp_t argument of blkdev_report_zones()

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Only GFP_KERNEL and GFP_NOIO are used with blkdev_report_zones(). In
preparation of using vmalloc() for large report buffer and zone array
allocations used by this function, remove its "gfp_t gfp_mask" argument
and rely on the caller context to use memalloc_noio_save/restore() where
necessary (block layer zone revalidation and dm-zoned I/O error path).

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Damien Le Moal 2019-07-01 14:09:16 +09:00 • committed by Jens Axboe
parent b4c5875d36
commit bd976e5272
12 changed files with 46 additions and 44 deletions
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3
include/linux/device-mapper.h
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@ -95,8 +95,7 @@ typedef int (*dm_prepare_ioctl_fn) (struct dm_target *ti, struct block_device **
typedef int (*dm_report_zones_fn) (struct dm_target *ti, sector_t sector,
struct blk_zone *zones,
unsigned int *nr_zones,
gfp_t gfp_mask);
unsigned int *nr_zones);
/*
* These iteration functions are typically used to check (and combine)