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btrfs-progs-introduce-kernel-sizes-to-cleanup-l...
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File btrfs-progs-introduce-kernel-sizes-to-cleanup-large-intermediate-number.patch of Package btrfsprogs.10361
From: Qu Wenruo <quwenruo@cn.fujitsu.com> Subject: btrfs-progs: Introduce kernel sizes to cleanup large intermediate number Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git Git-commit: a2203246ae483d09114329d5d1f898efb23d6168 Patch-mainline: v4.10 Large numbers like (1024 * 1024 * 1024) may cost reader/reviewer to waste one second to convert to 1G. Introduce kernel include/linux/sizes.h to replace any intermediate number larger than 4096 (not including 4096) to SZ_*. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com> Acked-by: Jeff Mahoney <jeffm@suse.com> --- btrfs-map-logical.c | 2 +- cmds-fi-usage.c | 2 +- cmds-filesystem.c | 2 +- cmds-inspect.c | 6 +++--- cmds-scrub.c | 2 +- cmds-send.c | 2 +- ctree.c | 7 ++++--- ctree.h | 6 ++++-- disk-io.c | 2 +- disk-io.h | 5 +++-- extent-tree.c | 15 +++++++-------- free-space-cache.c | 2 +- sizes.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ send.h | 2 +- utils.c | 8 ++++---- utils.h | 9 +++++---- volumes.c | 20 ++++++++++---------- volumes.h | 2 +- 18 files changed, 96 insertions(+), 45 deletions(-) diff --git a/btrfs-map-logical.c b/btrfs-map-logical.c index e49a735e..bcbf2d90 100644 --- a/btrfs-map-logical.c +++ b/btrfs-map-logical.c @@ -30,7 +30,7 @@ #include "list.h" #include "utils.h" -#define BUFFER_SIZE (64 * 1024) +#define BUFFER_SIZE SZ_64K /* we write the mirror info to stdout unless they are dumping the data * to stdout diff --git a/cmds-fi-usage.c b/cmds-fi-usage.c index 88e346ad..394de0c2 100644 --- a/cmds-fi-usage.c +++ b/cmds-fi-usage.c @@ -301,7 +301,7 @@ static void get_raid56_used(int fd, struct chunk_info *chunks, int chunkcount, } } -#define MIN_UNALOCATED_THRESH (16 * 1024 * 1024) +#define MIN_UNALOCATED_THRESH SZ_16M static int print_filesystem_usage_overall(int fd, struct chunk_info *chunkinfo, int chunkcount, struct device_info *devinfo, int devcount, char *path, unsigned unit_mode) diff --git a/cmds-inspect.c b/cmds-inspect.c index 5e58a284..ac3da618 100644 --- a/cmds-inspect.c +++ b/cmds-inspect.c @@ -173,7 +173,7 @@ static int cmd_inspect_logical_resolve(int argc, char **argv) if (check_argc_exact(argc - optind, 2)) usage(cmd_inspect_logical_resolve_usage); - size = min(size, (u64)64 * 1024); + size = min(size, (u64)SZ_64K); inodes = malloc(size); if (!inodes) return 1; @@ -486,7 +486,7 @@ static void adjust_dev_min_size(struct list_head *extents, * chunk tree, so often this can lead to the need of allocating * a new system chunk too, which has a maximum size of 32Mb. */ - *min_size += 32 * 1024 * 1024; + *min_size += SZ_32M; } } @@ -500,7 +500,7 @@ static int print_min_dev_size(int fd, u64 devid) * possibility of deprecating/removing it has been discussed, so we * ignore it here. */ - u64 min_size = 1 * 1024 * 1024ull; + u64 min_size = SZ_1M; struct btrfs_ioctl_search_args args; struct btrfs_ioctl_search_key *sk = &args.key; u64 last_pos = (u64)-1; diff --git a/cmds-scrub.c b/cmds-scrub.c index 2cf7f308..292a5dfd 100644 --- a/cmds-scrub.c +++ b/cmds-scrub.c @@ -467,7 +467,7 @@ static struct scrub_file_record **scrub_read_file(int fd, int report_errors) { int avail = 0; int old_avail = 0; - char l[16 * 1024]; + char l[SZ_16K]; int state = 0; int curr = -1; int i = 0; diff --git a/ctree.c b/ctree.c index d07ec7d9..e3d687fb 100644 --- a/ctree.c +++ b/ctree.c @@ -21,6 +21,7 @@ #include "print-tree.h" #include "repair.h" #include "internal.h" +#include "sizes.h" static int split_node(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level); @@ -368,7 +369,7 @@ int btrfs_cow_block(struct btrfs_trans_handle *trans, return 0; } - search_start = buf->start & ~((u64)(1024 * 1024 * 1024) - 1); + search_start = buf->start & ~((u64)SZ_1G - 1); ret = __btrfs_cow_block(trans, root, buf, parent, parent_slot, cow_ret, search_start, 0); return ret; @@ -1026,9 +1027,9 @@ void reada_for_search(struct btrfs_root *root, struct btrfs_path *path, nread += blocksize; } nscan++; - if (path->reada < 2 && (nread > (256 * 1024) || nscan > 32)) + if (path->reada < 2 && (nread > SZ_256K || nscan > 32)) break; - if(nread > (1024 * 1024) || nscan > 128) + if(nread > SZ_1M || nscan > 128) break; if (search < lowest_read) diff --git a/ctree.h b/ctree.h index 0c34ae20..401257f4 100644 --- a/ctree.h +++ b/ctree.h @@ -26,6 +26,7 @@ #include "extent-cache.h" #include "extent_io.h" #include "ioctl.h" +#include "sizes.h" #else #include <btrfs/list.h> #include <btrfs/kerncompat.h> @@ -33,6 +34,7 @@ #include <btrfs/extent-cache.h> #include <btrfs/extent_io.h> #include <btrfs/ioctl.h> +#include <linux/sizes.h> #endif /* BTRFS_FLAT_INCLUDES */ struct btrfs_root; @@ -601,7 +603,7 @@ struct btrfs_extent_item_v0 { #define BTRFS_MAX_EXTENT_ITEM_SIZE(r) ((BTRFS_LEAF_DATA_SIZE(r) >> 4) - \ sizeof(struct btrfs_item)) -#define BTRFS_MAX_EXTENT_SIZE (128 * 1024 * 1024) +#define BTRFS_MAX_EXTENT_SIZE SZ_128M #define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) #define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1) @@ -952,7 +954,7 @@ struct btrfs_csum_item { * - the first 64k blank is useful for some boot loader/manager * - the first 1M could be scratched by buggy partitioner or somesuch */ -#define BTRFS_BLOCK_RESERVED_1M_FOR_SUPER ((u64)1024 * 1024) +#define BTRFS_BLOCK_RESERVED_1M_FOR_SUPER ((u64)SZ_1M) /* tag for the radix tree of block groups in ram */ #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0) diff --git a/disk-io.c b/disk-io.c index 2a94d4fc..318128cc 100644 --- a/disk-io.c +++ b/disk-io.c @@ -207,7 +207,7 @@ void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize, bytenr, &length, &multi, 0, NULL)) { device = multi->stripes[0].dev; device->total_ios++; - blocksize = min(blocksize, (u32)(64 * 1024)); + blocksize = min(blocksize, (u32)SZ_64K); readahead(device->fd, multi->stripes[0].physical, blocksize); } diff --git a/disk-io.h b/disk-io.h index 1c8387e7..c4afea3f 100644 --- a/disk-io.h +++ b/disk-io.h @@ -21,8 +21,9 @@ #include "kerncompat.h" #include "ctree.h" +#include "sizes.h" -#define BTRFS_SUPER_INFO_OFFSET (64 * 1024) +#define BTRFS_SUPER_INFO_OFFSET SZ_64K #define BTRFS_SUPER_INFO_SIZE 4096 #define BTRFS_SUPER_MIRROR_MAX 3 @@ -99,7 +100,7 @@ enum btrfs_read_sb_flags { static inline u64 btrfs_sb_offset(int mirror) { - u64 start = 16 * 1024; + u64 start = SZ_16K; if (mirror) return start << (BTRFS_SUPER_MIRROR_SHIFT * mirror); return BTRFS_SUPER_INFO_OFFSET; diff --git a/extent-tree.c b/extent-tree.c index b2847ff9..3635395c 100644 --- a/extent-tree.c +++ b/extent-tree.c @@ -2691,7 +2691,7 @@ int btrfs_reserve_extent(struct btrfs_trans_handle *trans, BUG_ON(ret); } ret = do_chunk_alloc(trans, root->fs_info->extent_root, - num_bytes + 2 * 1024 * 1024, data); + num_bytes + SZ_2M, data); BUG_ON(ret); } @@ -2908,8 +2908,8 @@ static void noinline reada_walk_down(struct btrfs_root *root, for (i = slot; i < nritems && skipped < 32; i++) { bytenr = btrfs_node_blockptr(node, i); - if (last && ((bytenr > last && bytenr - last > 32 * 1024) || - (last > bytenr && last - bytenr > 32 * 1024))) { + if (last && ((bytenr > last && bytenr - last > SZ_32K) || + (last > bytenr && last - bytenr > SZ_32K))) { skipped++; continue; } @@ -3413,19 +3413,18 @@ int btrfs_make_block_groups(struct btrfs_trans_handle *trans, group_type = BTRFS_BLOCK_GROUP_SYSTEM; group_size /= 4; group_size &= ~(group_align - 1); - group_size = max_t(u64, group_size, 8 * 1024 * 1024); - group_size = min_t(u64, group_size, 32 * 1024 * 1024); + group_size = max_t(u64, group_size, SZ_8M); + group_size = min_t(u64, group_size, SZ_32M); } else { group_size &= ~(group_align - 1); if (total_data >= total_metadata * 2) { group_type = BTRFS_BLOCK_GROUP_METADATA; - group_size = min_t(u64, group_size, - 1ULL * 1024 * 1024 * 1024); + group_size = min_t(u64, group_size, SZ_1G); total_metadata += group_size; } else { group_type = BTRFS_BLOCK_GROUP_DATA; group_size = min_t(u64, group_size, - 5ULL * 1024 * 1024 * 1024); + 5ULL * SZ_1G); total_data += group_size; } if ((total_bytes - cur_start) * 4 < group_size * 5) diff --git a/free-space-cache.c b/free-space-cache.c index 286b185e..a4196eb1 100644 --- a/free-space-cache.c +++ b/free-space-cache.c @@ -33,7 +33,7 @@ * filesystem */ #define BITS_PER_BITMAP(sectorsize) ((sectorsize) * 8) -#define MAX_CACHE_BYTES_PER_GIG (32 * 1024) +#define MAX_CACHE_BYTES_PER_GIG SZ_32K static int link_free_space(struct btrfs_free_space_ctl *ctl, struct btrfs_free_space *info); diff --git a/sizes.h b/sizes.h new file mode 100644 index 00000000..ce3e8150 --- /dev/null +++ b/sizes.h @@ -0,0 +1,47 @@ +/* + * include/linux/sizes.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __LINUX_SIZES_H__ +#define __LINUX_SIZES_H__ + +#define SZ_1 0x00000001 +#define SZ_2 0x00000002 +#define SZ_4 0x00000004 +#define SZ_8 0x00000008 +#define SZ_16 0x00000010 +#define SZ_32 0x00000020 +#define SZ_64 0x00000040 +#define SZ_128 0x00000080 +#define SZ_256 0x00000100 +#define SZ_512 0x00000200 + +#define SZ_1K 0x00000400 +#define SZ_2K 0x00000800 +#define SZ_4K 0x00001000 +#define SZ_8K 0x00002000 +#define SZ_16K 0x00004000 +#define SZ_32K 0x00008000 +#define SZ_64K 0x00010000 +#define SZ_128K 0x00020000 +#define SZ_256K 0x00040000 +#define SZ_512K 0x00080000 + +#define SZ_1M 0x00100000 +#define SZ_2M 0x00200000 +#define SZ_4M 0x00400000 +#define SZ_8M 0x00800000 +#define SZ_16M 0x01000000 +#define SZ_32M 0x02000000 +#define SZ_64M 0x04000000 +#define SZ_128M 0x08000000 +#define SZ_256M 0x10000000 +#define SZ_512M 0x20000000 + +#define SZ_1G 0x40000000 +#define SZ_2G 0x80000000 + +#endif /* __LINUX_SIZES_H__ */ diff --git a/send.h b/send.h index ae9aa029..fe613cbb 100644 --- a/send.h +++ b/send.h @@ -29,7 +29,7 @@ extern "C" { #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream" #define BTRFS_SEND_STREAM_VERSION 1 -#define BTRFS_SEND_BUF_SIZE (1024 * 64) +#define BTRFS_SEND_BUF_SIZE SZ_64K #define BTRFS_SEND_READ_SIZE (1024 * 48) enum btrfs_tlv_type { diff --git a/utils.c b/utils.c index 1adcc84e..b4f667e5 100644 --- a/utils.c +++ b/utils.c @@ -134,7 +134,7 @@ static int discard_blocks(int fd, u64 start, u64 len) { while (len > 0) { /* 1G granularity */ - u64 chunk_size = min_t(u64, len, 1*1024*1024*1024); + u64 chunk_size = min_t(u64, len, SZ_1G); int ret; ret = discard_range(fd, start, chunk_size); @@ -542,7 +542,7 @@ static int insert_temp_chunk_item(int fd, struct extent_buffer *buf, chunk = btrfs_item_ptr(buf, *slot, struct btrfs_chunk); btrfs_set_chunk_length(buf, chunk, len); btrfs_set_chunk_owner(buf, chunk, BTRFS_EXTENT_TREE_OBJECTID); - btrfs_set_chunk_stripe_len(buf, chunk, 64 * 1024); + btrfs_set_chunk_stripe_len(buf, chunk, BTRFS_STRIPE_LEN); btrfs_set_chunk_type(buf, chunk, type); btrfs_set_chunk_io_align(buf, chunk, cfg->sectorsize); btrfs_set_chunk_io_width(buf, chunk, cfg->sectorsize); @@ -1335,7 +1335,7 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg) chunk = btrfs_item_ptr(buf, nritems, struct btrfs_chunk); btrfs_set_chunk_length(buf, chunk, BTRFS_MKFS_SYSTEM_GROUP_SIZE); btrfs_set_chunk_owner(buf, chunk, BTRFS_EXTENT_TREE_OBJECTID); - btrfs_set_chunk_stripe_len(buf, chunk, 64 * 1024); + btrfs_set_chunk_stripe_len(buf, chunk, BTRFS_STRIPE_LEN); btrfs_set_chunk_type(buf, chunk, BTRFS_BLOCK_GROUP_SYSTEM); btrfs_set_chunk_io_align(buf, chunk, cfg->sectorsize); btrfs_set_chunk_io_width(buf, chunk, cfg->sectorsize); @@ -1684,7 +1684,7 @@ static int zero_blocks(int fd, off_t start, size_t len) return ret; } -#define ZERO_DEV_BYTES (2 * 1024 * 1024) +#define ZERO_DEV_BYTES SZ_2M /* don't write outside the device by clamping the region to the device size */ static int zero_dev_clamped(int fd, off_t start, ssize_t len, u64 dev_size) diff --git a/utils.h b/utils.h index 3dec4953..ebe01a6a 100644 --- a/utils.h +++ b/utils.h @@ -25,10 +25,11 @@ #include <stdarg.h> #include "internal.h" #include "btrfs-list.h" +#include "sizes.h" -#define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024) -#define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024) -#define BTRFS_MKFS_DEFAULT_NODE_SIZE 16384 +#define BTRFS_MKFS_SYSTEM_GROUP_SIZE SZ_4M +#define BTRFS_MKFS_SMALL_VOLUME_SIZE SZ_1G +#define BTRFS_MKFS_DEFAULT_NODE_SIZE SZ_16K #define BTRFS_MKFS_DEFAULT_FEATURES \ (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF \ | BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA) @@ -46,7 +47,7 @@ | BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA \ | BTRFS_FEATURE_INCOMPAT_NO_HOLES) -#define BTRFS_CONVERT_META_GROUP_SIZE (32 * 1024 * 1024) +#define BTRFS_CONVERT_META_GROUP_SIZE SZ_32M #define BTRFS_FEATURE_LIST_ALL (1ULL << 63) diff --git a/volumes.c b/volumes.c index a0a85edd..d87fd70e 100644 --- a/volumes.c +++ b/volumes.c @@ -843,8 +843,8 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans, struct list_head *dev_list = &info->fs_devices->devices; struct list_head *cur; struct map_lookup *map; - int min_stripe_size = 1 * 1024 * 1024; - u64 calc_size = 8 * 1024 * 1024; + int min_stripe_size = SZ_1M; + u64 calc_size = SZ_8M; u64 min_free; u64 max_chunk_size = 4 * calc_size; u64 avail = 0; @@ -870,19 +870,19 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans, BTRFS_BLOCK_GROUP_RAID10 | BTRFS_BLOCK_GROUP_DUP)) { if (type & BTRFS_BLOCK_GROUP_SYSTEM) { - calc_size = 8 * 1024 * 1024; + calc_size = SZ_8M; max_chunk_size = calc_size * 2; - min_stripe_size = 1 * 1024 * 1024; + min_stripe_size = SZ_1M; max_stripes = BTRFS_MAX_DEVS_SYS_CHUNK; } else if (type & BTRFS_BLOCK_GROUP_DATA) { - calc_size = 1024 * 1024 * 1024; + calc_size = SZ_1G; max_chunk_size = 10 * calc_size; - min_stripe_size = 64 * 1024 * 1024; + min_stripe_size = SZ_64M; max_stripes = BTRFS_MAX_DEVS(chunk_root); } else if (type & BTRFS_BLOCK_GROUP_METADATA) { - calc_size = 1024 * 1024 * 1024; + calc_size = SZ_1G; max_chunk_size = 4 * calc_size; - min_stripe_size = 32 * 1024 * 1024; + min_stripe_size = SZ_32M; max_stripes = BTRFS_MAX_DEVS(chunk_root); } } @@ -1108,7 +1108,7 @@ int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans, struct list_head *dev_list = &info->fs_devices->devices; struct list_head *cur; struct map_lookup *map; - u64 calc_size = 8 * 1024 * 1024; + u64 calc_size = SZ_8M; int num_stripes = 1; int sub_stripes = 0; int ret; diff --git a/volumes.h b/volumes.h index ee7d56ab..18978a8d 100644 --- a/volumes.h +++ b/volumes.h @@ -22,7 +22,7 @@ #include "kerncompat.h" #include "ctree.h" -#define BTRFS_STRIPE_LEN (64 * 1024) +#define BTRFS_STRIPE_LEN SZ_64K struct btrfs_device { struct list_head dev_list;
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