diff options
Diffstat (limited to 'drivers/md/dm-switch.c')
| -rw-r--r-- | drivers/md/dm-switch.c | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/drivers/md/dm-switch.c b/drivers/md/dm-switch.c index 534dc2ca8bb0..ee2432927e90 100644 --- a/drivers/md/dm-switch.c +++ b/drivers/md/dm-switch.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2010-2012 by Dell Inc. All rights reserved. * Copyright (C) 2011-2013 Red Hat, Inc. @@ -38,9 +39,9 @@ struct switch_path { struct switch_ctx { struct dm_target *ti; - unsigned nr_paths; /* Number of paths in path_list. */ + unsigned int nr_paths; /* Number of paths in path_list. */ - unsigned region_size; /* Region size in 512-byte sectors */ + unsigned int region_size; /* Region size in 512-byte sectors */ unsigned long nr_regions; /* Number of regions making up the device */ signed char region_size_bits; /* log2 of region_size or -1 */ @@ -56,8 +57,8 @@ struct switch_ctx { struct switch_path path_list[]; }; -static struct switch_ctx *alloc_switch_ctx(struct dm_target *ti, unsigned nr_paths, - unsigned region_size) +static struct switch_ctx *alloc_switch_ctx(struct dm_target *ti, unsigned int nr_paths, + unsigned int region_size) { struct switch_ctx *sctx; @@ -73,7 +74,7 @@ static struct switch_ctx *alloc_switch_ctx(struct dm_target *ti, unsigned nr_pat return sctx; } -static int alloc_region_table(struct dm_target *ti, unsigned nr_paths) +static int alloc_region_table(struct dm_target *ti, unsigned int nr_paths) { struct switch_ctx *sctx = ti->private; sector_t nr_regions = ti->len; @@ -124,7 +125,7 @@ static int alloc_region_table(struct dm_target *ti, unsigned nr_paths) } static void switch_get_position(struct switch_ctx *sctx, unsigned long region_nr, - unsigned long *region_index, unsigned *bit) + unsigned long *region_index, unsigned int *bit) { if (sctx->region_entries_per_slot_bits >= 0) { *region_index = region_nr >> sctx->region_entries_per_slot_bits; @@ -137,10 +138,10 @@ static void switch_get_position(struct switch_ctx *sctx, unsigned long region_nr *bit *= sctx->region_table_entry_bits; } -static unsigned switch_region_table_read(struct switch_ctx *sctx, unsigned long region_nr) +static unsigned int switch_region_table_read(struct switch_ctx *sctx, unsigned long region_nr) { unsigned long region_index; - unsigned bit; + unsigned int bit; switch_get_position(sctx, region_nr, ®ion_index, &bit); @@ -151,9 +152,9 @@ static unsigned switch_region_table_read(struct switch_ctx *sctx, unsigned long /* * Find which path to use at given offset. */ -static unsigned switch_get_path_nr(struct switch_ctx *sctx, sector_t offset) +static unsigned int switch_get_path_nr(struct switch_ctx *sctx, sector_t offset) { - unsigned path_nr; + unsigned int path_nr; sector_t p; p = offset; @@ -172,10 +173,10 @@ static unsigned switch_get_path_nr(struct switch_ctx *sctx, sector_t offset) } static void switch_region_table_write(struct switch_ctx *sctx, unsigned long region_nr, - unsigned value) + unsigned int value) { unsigned long region_index; - unsigned bit; + unsigned int bit; region_table_slot_t pte; switch_get_position(sctx, region_nr, ®ion_index, &bit); @@ -191,7 +192,7 @@ static void switch_region_table_write(struct switch_ctx *sctx, unsigned long reg */ static void initialise_region_table(struct switch_ctx *sctx) { - unsigned path_nr = 0; + unsigned int path_nr = 0; unsigned long region_nr; for (region_nr = 0; region_nr < sctx->nr_regions; region_nr++) { @@ -249,7 +250,7 @@ static void switch_dtr(struct dm_target *ti) * Optional args are to allow for future extension: currently this * parameter must be 0. */ -static int switch_ctr(struct dm_target *ti, unsigned argc, char **argv) +static int switch_ctr(struct dm_target *ti, unsigned int argc, char **argv) { static const struct dm_arg _args[] = { {1, (KMALLOC_MAX_SIZE - sizeof(struct switch_ctx)) / sizeof(struct switch_path), "Invalid number of paths"}, @@ -259,7 +260,7 @@ static int switch_ctr(struct dm_target *ti, unsigned argc, char **argv) struct switch_ctx *sctx; struct dm_arg_set as; - unsigned nr_paths, region_size, nr_optional_args; + unsigned int nr_paths, region_size, nr_optional_args; int r; as.argc = argc; @@ -320,7 +321,7 @@ static int switch_map(struct dm_target *ti, struct bio *bio) { struct switch_ctx *sctx = ti->private; sector_t offset = dm_target_offset(ti, bio->bi_iter.bi_sector); - unsigned path_nr = switch_get_path_nr(sctx, offset); + unsigned int path_nr = switch_get_path_nr(sctx, offset); bio_set_dev(bio, sctx->path_list[path_nr].dmdev->bdev); bio->bi_iter.bi_sector = sctx->path_list[path_nr].start + offset; @@ -371,9 +372,9 @@ static __always_inline unsigned long parse_hex(const char **string) } static int process_set_region_mappings(struct switch_ctx *sctx, - unsigned argc, char **argv) + unsigned int argc, char **argv) { - unsigned i; + unsigned int i; unsigned long region_index = 0; for (i = 1; i < argc; i++) { @@ -466,8 +467,8 @@ static int process_set_region_mappings(struct switch_ctx *sctx, * * Only set_region_mappings is supported. */ -static int switch_message(struct dm_target *ti, unsigned argc, char **argv, - char *result, unsigned maxlen) +static int switch_message(struct dm_target *ti, unsigned int argc, char **argv, + char *result, unsigned int maxlen) { static DEFINE_MUTEX(message_mutex); @@ -487,10 +488,10 @@ static int switch_message(struct dm_target *ti, unsigned argc, char **argv, } static void switch_status(struct dm_target *ti, status_type_t type, - unsigned status_flags, char *result, unsigned maxlen) + unsigned int status_flags, char *result, unsigned int maxlen) { struct switch_ctx *sctx = ti->private; - unsigned sz = 0; + unsigned int sz = 0; int path_nr; switch (type) { @@ -519,7 +520,7 @@ static void switch_status(struct dm_target *ti, status_type_t type, static int switch_prepare_ioctl(struct dm_target *ti, struct block_device **bdev) { struct switch_ctx *sctx = ti->private; - unsigned path_nr; + unsigned int path_nr; path_nr = switch_get_path_nr(sctx, 0); |