diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2015-12-31 14:35:37 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:45 +0200 |
| commit | 3fc10414cce03a16d3300b7b6ff822da73590fcc (patch) | |
| tree | 64d5672dd8dbc262b70a9b43c2c931b088ce27c8 | |
| parent | 5118ba04e46c3bd6dbb66149b71510949ddb6f0e (diff) | |
f2fs: introduce max_file_blocks in sbi
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>
| -rw-r--r-- | fs/f2fs/data.c | 2 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 2 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 7 |
3 files changed, 6 insertions, 5 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 77427f370..e618451b4 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -763,7 +763,7 @@ static int get_data_block_bmap(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { /* Block number less than F2FS MAX BLOCKS */ - if (unlikely(iblock >= max_file_size(0))) + if (unlikely(iblock >= F2FS_I_SB(inode)->max_file_blocks)) return -EFBIG; return __get_data_block(inode, iblock, bh_result, create, diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 655b743db..6bdc62903 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -782,6 +782,7 @@ struct f2fs_sb_info { unsigned int total_node_count; /* total node block count */ unsigned int total_valid_node_count; /* valid node block count */ unsigned int total_valid_inode_count; /* valid inode count */ + loff_t max_file_blocks; /* max block index of file */ int active_logs; /* # of active logs */ int dir_level; /* directory level */ @@ -1733,7 +1734,6 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) * super.c */ int f2fs_commit_super(struct f2fs_sb_info *, bool); -loff_t max_file_size(unsigned bits); int f2fs_sync_fs(struct super_block *, int); extern __printf(3, 4) void f2fs_msg(struct super_block *, const char *, const char *, ...); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b8da05ee4..fb4d13fc3 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -906,7 +906,7 @@ 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; @@ -922,7 +922,6 @@ loff_t max_file_size(unsigned bits) leaf_count *= NIDS_PER_BLOCK; result += leaf_count; - result <<= bits; return result; } @@ -1277,7 +1276,9 @@ 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)); |