There are very similar codes in inc_valid_block_count() and inc_valid_node_count() which is used for available user block count calculation.
This patch introduces a new helper get_available_block_count() to include those common codes, and used it instead for cleanup. Signed-off-by: Chao Yu <yuch...@huawei.com> --- fs/f2fs/f2fs.h | 48 ++++++++++++++++++++++++++++-------------------- 1 file changed, 28 insertions(+), 20 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index aafd9ff30f9e..c7b2b68c8c85 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1765,6 +1765,28 @@ static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, return false; } +static inline unsigned int get_available_block_count(struct inode *inode, + bool cap) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + block_t avail_user_block_count; + + avail_user_block_count = sbi->user_block_count - + sbi->current_reserved_blocks; + + if (!__allow_reserved_blocks(sbi, inode, cap)) + avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; + + if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { + if (avail_user_block_count > sbi->unusable_block_count) + avail_user_block_count -= sbi->unusable_block_count; + else + avail_user_block_count = 0; + } + + return avail_user_block_count; +} + static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, struct inode *inode, blkcnt_t *count) @@ -1791,17 +1813,8 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); sbi->total_valid_block_count += (block_t)(*count); - avail_user_block_count = sbi->user_block_count - - sbi->current_reserved_blocks; + avail_user_block_count = get_available_block_count(inode, true); - if (!__allow_reserved_blocks(sbi, inode, true)) - avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; - if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { - if (avail_user_block_count > sbi->unusable_block_count) - avail_user_block_count -= sbi->unusable_block_count; - else - avail_user_block_count = 0; - } if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { diff = sbi->total_valid_block_count - avail_user_block_count; if (diff > *count) @@ -2014,7 +2027,8 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, struct inode *inode, bool is_inode) { block_t valid_block_count; - unsigned int valid_node_count, user_block_count; + unsigned int valid_node_count; + unsigned int avail_user_block_count; int err; if (is_inode) { @@ -2036,16 +2050,10 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); - valid_block_count = sbi->total_valid_block_count + - sbi->current_reserved_blocks + 1; - - if (!__allow_reserved_blocks(sbi, inode, false)) - valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; - user_block_count = sbi->user_block_count; - if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) - user_block_count -= sbi->unusable_block_count; + valid_block_count = sbi->total_valid_block_count + 1; + avail_user_block_count = get_available_block_count(inode, false); - if (unlikely(valid_block_count > user_block_count)) { + if (unlikely(valid_block_count > avail_user_block_count)) { spin_unlock(&sbi->stat_lock); goto enospc; } -- 2.18.0.rc1