xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: introduce max_file_blocks in sbi

Browse Source 
Introduce max_file_blocks in sbi to store max block index of file in f2fs,
it could be used to avoid unneeded calculation of max block index in
runtime.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
[Jaegeuk Kim: fix overflow of sbi->max_file_blocks]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2015-12-31 14:35:37 +08:00
committed by Jaegeuk Kim
parent 3a9e6433a3
commit e0afc4d6d0
3 changed files with 6 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
fs/f2fs/super.c
View File

@@ -907,7 +907,7 @@ static const struct export_operations f2fs_export_ops = {
.get_parent = f2fs_get_parent,
};
loff_t max_file_size(unsigned bits)
static loff_t max_file_blocks(void)
{
loff_t result = (DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS);
loff_t leaf_count = ADDRS_PER_BLOCK;
@@ -923,7 +923,6 @@ loff_t max_file_size(unsigned bits)
leaf_count *= NIDS_PER_BLOCK;
result += leaf_count;
result <<= bits;
return result;
}
@@ -1278,7 +1277,9 @@ try_onemore:
if (err)
goto free_options;
sb->s_maxbytes = max_file_size(le32_to_cpu(raw_super->log_blocksize));
sbi->max_file_blocks = max_file_blocks();
sb->s_maxbytes = sbi->max_file_blocks <<
le32_to_cpu(raw_super->log_blocksize);
sb->s_max_links = F2FS_LINK_MAX;
get_random_bytes(&sbi->s_next_generation, sizeof(u32));