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| author |   Chao Yu <yuchao0@huawei.com> | 2019-03-25 21:08:19 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2019-05-08 21:23:10 -0700 |
| commit | d02a6e6174a772fa90c5efa51a55a04e6d8c0006 (patch) | |
| tree | 93c8a683aa0014390001195a94037a7703ca5866 /fs/f2fs/f2fs.h | |
| parent | f2fs: introduce f2fs_read_single_page() for cleanup (diff) | |
| download | linux-dev-d02a6e6174a772fa90c5efa51a55a04e6d8c0006.tar.xz linux-dev-d02a6e6174a772fa90c5efa51a55a04e6d8c0006.zip | |
f2fs: allow address pointer number of dnode aligning to specified size
This patch expands scalability of dnode layout, it allows address pointer
number of dnode aligning to specified size (now, the size is one byte by
default), and later the number can align to compress cluster size
(1 << n bytes, n=[2,..)), it can avoid cluster acrossing two dnode, making
design of compress meta layout simple.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 4c6fe137962d..9a9dc20e295b 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -2574,7 +2574,14 @@ static inline int f2fs_has_inline_xattr(struct inode *inode) static inline unsigned int addrs_per_inode(struct inode *inode) { - return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode); + unsigned int addrs = CUR_ADDRS_PER_INODE(inode) - + get_inline_xattr_addrs(inode); + return ALIGN_DOWN(addrs, 1); +} + +static inline unsigned int addrs_per_block(struct inode *inode) +{ + return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, 1); } static inline void *inline_xattr_addr(struct inode *inode, struct page *page) |