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authorByongho Lee <bhlee.kernel@gmail.com>2015-12-14 16:42:10 (GMT)
committerDavid Sterba <dsterba@suse.com>2016-01-07 13:38:02 (GMT)
commitee22184b53c823f6956314c2815d4068e3820737 (patch)
tree3791157549663f2804529ba83b36019ee3e2cd2a /fs/btrfs/disk-io.c
parent7928d672ffb06085d06fe3c27a93549d37e53ab3 (diff)
downloadlinux-ee22184b53c823f6956314c2815d4068e3820737.tar.xz
Btrfs: use linux/sizes.h to represent constants
We use many constants to represent size and offset value. And to make code readable we use '256 * 1024 * 1024' instead of '268435456' to represent '256MB'. However we can make far more readable with 'SZ_256MB' which is defined in the 'linux/sizes.h'. So this patch replaces 'xxx * 1024 * 1024' kind of expression with single 'SZ_xxxMB' if 'xxx' is a power of 2 then 'xxx * SZ_1M' if 'xxx' is not a power of 2. And I haven't touched to '4096' & '8192' because it's more intuitive than 'SZ_4KB' & 'SZ_8KB'. Signed-off-by: Byongho Lee <bhlee.kernel@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c76f6ea..e8eebe7 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2809,7 +2809,7 @@ int open_ctree(struct super_block *sb,
fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super);
fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages,
- 4 * 1024 * 1024 / PAGE_CACHE_SIZE);
+ SZ_4M / PAGE_CACHE_SIZE);
tree_root->nodesize = nodesize;
tree_root->sectorsize = sectorsize;