diff options
| -rw-r--r-- | fs/f2fs/data.c | 37 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | include/linux/f2fs_fs.h | 2 |
3 files changed, 32 insertions, 8 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index e7815ace6053..03f948e84115 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -571,16 +571,25 @@ ssize_t f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from) ssize_t ret = 0; map.m_lblk = F2FS_BYTES_TO_BLK(iocb->ki_pos); - map.m_len = F2FS_BYTES_TO_BLK(iov_iter_count(from)); + map.m_len = F2FS_BLK_ALIGN(iov_iter_count(from)); map.m_next_pgofs = NULL; - if (iocb->ki_flags & IOCB_DIRECT && - !(f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))) { + if (f2fs_encrypted_inode(inode)) + return 0; + + if (iocb->ki_flags & IOCB_DIRECT) { + ret = f2fs_convert_inline_inode(inode); + if (ret) + return ret; + return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO); + } + if (iocb->ki_pos + iov_iter_count(from) > MAX_INLINE_DATA) { ret = f2fs_convert_inline_inode(inode); if (ret) return ret; - ret = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO); } + if (!f2fs_has_inline_data(inode)) + return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO); return ret; } @@ -612,7 +621,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, /* it only supports block size == page size */ pgofs = (pgoff_t)map->m_lblk; - if (f2fs_lookup_extent_cache(inode, pgofs, &ei)) { + if (!create && f2fs_lookup_extent_cache(inode, pgofs, &ei)) { map->m_pblk = ei.blk + pgofs - ei.fofs; map->m_len = min((pgoff_t)maxblocks, ei.fofs + ei.len - pgofs); map->m_flags = F2FS_MAP_MAPPED; @@ -647,7 +656,12 @@ next_block: err = -EIO; goto sync_out; } - err = __allocate_data_block(&dn); + if (flag == F2FS_GET_BLOCK_PRE_AIO) { + if (blkaddr == NULL_ADDR) + err = reserve_new_block(&dn); + } else { + err = __allocate_data_block(&dn); + } if (err) goto sync_out; allocated = true; @@ -679,7 +693,8 @@ next_block: } else if ((map->m_pblk != NEW_ADDR && blkaddr == (map->m_pblk + ofs)) || (map->m_pblk == NEW_ADDR && blkaddr == NEW_ADDR) || - flag == F2FS_GET_BLOCK_PRE_DIO) { + flag == F2FS_GET_BLOCK_PRE_DIO || + flag == F2FS_GET_BLOCK_PRE_AIO) { ofs++; map->m_len++; } else { @@ -1418,6 +1433,14 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi, struct extent_info ei; int err = 0; + /* + * we already allocated all the blocks, so we don't need to get + * the block addresses when there is no need to fill the page. + */ + if (!f2fs_has_inline_data(inode) && !f2fs_encrypted_inode(inode) && + len == PAGE_CACHE_SIZE) + return 0; + if (f2fs_has_inline_data(inode) || (pos & PAGE_CACHE_MASK) >= i_size_read(inode)) { f2fs_lock_op(sbi); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 445179152c3e..f6a841b85d40 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -392,6 +392,7 @@ struct f2fs_map_blocks { #define F2FS_GET_BLOCK_FIEMAP 2 #define F2FS_GET_BLOCK_BMAP 3 #define F2FS_GET_BLOCK_PRE_DIO 4 +#define F2FS_GET_BLOCK_PRE_AIO 5 /* * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index ac8040278f69..f43e6a01a023 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -21,7 +21,7 @@ #define F2FS_BLKSIZE 4096 /* support only 4KB block */ #define F2FS_BLKSIZE_BITS 12 /* bits for F2FS_BLKSIZE */ #define F2FS_MAX_EXTENSION 64 /* # of extension entries */ -#define F2FS_BLK_ALIGN(x) (((x) + F2FS_BLKSIZE - 1) / F2FS_BLKSIZE) +#define F2FS_BLK_ALIGN(x) (((x) + F2FS_BLKSIZE - 1) >> F2FS_BLKSIZE_BITS) #define NULL_ADDR ((block_t)0) /* used as block_t addresses */ #define NEW_ADDR ((block_t)-1) /* used as block_t addresses */ |