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 to clean up codes. Signed-off-by: Chao Yu <[email protected]> --- fs/f2fs/f2fs.h | 61 +++++++++++++++++++++++++------------------------- 1 file changed, 31 insertions(+), 30 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 5d19643a92af..0094a8c85f4a 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -2253,6 +2253,31 @@ static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, return false; } +static inline unsigned int get_available_block_count(struct f2fs_sb_info *sbi, + struct inode *inode, bool cap) +{ + 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 (F2FS_IO_ALIGNED(sbi)) + avail_user_block_count -= sbi->blocks_per_seg * + SM_I(sbi)->additional_reserved_segments; + + 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, bool partial) @@ -2278,22 +2303,8 @@ 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; - - if (!__allow_reserved_blocks(sbi, inode, true)) - avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; + avail_user_block_count = get_available_block_count(sbi, inode, true); - if (F2FS_IO_ALIGNED(sbi)) - avail_user_block_count -= sbi->blocks_per_seg * - SM_I(sbi)->additional_reserved_segments; - - 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)) { if (!partial) { spin_unlock(&sbi->stat_lock); @@ -2609,7 +2620,8 @@ 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) { @@ -2629,21 +2641,10 @@ 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; - - if (F2FS_IO_ALIGNED(sbi)) - valid_block_count += sbi->blocks_per_seg * - SM_I(sbi)->additional_reserved_segments; - - 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(sbi, 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; } -- 2.40.1 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
