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| author | Chao Yu <yuchao0@huawei.com> | 2017-03-23 13:38:26 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-03-24 15:10:53 -0400 |
| commit | 22588f8773f687449ce6e97dce9f102553440d30 (patch) | |
| tree | 4b3fe264daaf5151bf5d3b6dd509f155ff73a4a1 /fs/f2fs/xattr.c | |
| parent | 89e9eabd7ded4680f3b0f8ddc7398a3909de57c8 (diff) | |
| download | linux-22588f8773f687449ce6e97dce9f102553440d30.tar.gz | |
f2fs: don't reserve additional space in xattr block
In this patch, we change xattr block disk layout as below: Before: xattr node block layout +---------------------------------------------+---------------+-------------+ | node block xattr entries | reserved | node footer | | 4068 Bytes | 4 Bytes | 24 Bytes | In memory layout +--------------------+---------------------------------+--------------------+ | inline xattr | node block xattr entries | reserved | | 200 Bytes | 4068 Bytes | 4 Bytes | After: xattr node block layout +-------------------------------------------------------------+-------------+ | node block xattr entries | node footer | | 4072 Bytes | 24 Bytes | In memory layout +--------------------+---------------------------------+--------------------+ | inline xattr | node block xattr entries | reserved | | 200 Bytes | 4072 Bytes | 4 Bytes | With this change, we don't need to reserve additional space in node block, just keep reserved space in logical in-memory layout. So that it would help to enlarge valid free space of xattr node block. As tested, generic/026 shows max stored xattr entires number increases from 531 to 532 when inline_xattr option is enabled. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/xattr.c')
| -rw-r--r-- | fs/f2fs/xattr.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 528aed399814..832c5110abab 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -256,7 +256,7 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage, if (!size && !inline_size) return -ENODATA; - txattr_addr = kzalloc(inline_size + size + RESERVED_XATTR_SIZE, + txattr_addr = kzalloc(inline_size + size + XATTR_PADDING_SIZE, GFP_F2FS_ZERO); if (!txattr_addr) return -ENOMEM; @@ -332,7 +332,7 @@ static int read_all_xattrs(struct inode *inode, struct page *ipage, void *txattr_addr; int err; - txattr_addr = kzalloc(inline_size + size + RESERVED_XATTR_SIZE, + txattr_addr = kzalloc(inline_size + size + XATTR_PADDING_SIZE, GFP_F2FS_ZERO); if (!txattr_addr) return -ENOMEM; @@ -451,7 +451,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize, } xattr_addr = page_address(xpage); - memcpy(xattr_addr, txattr_addr + inline_size, MAX_XATTR_BLOCK_SIZE); + memcpy(xattr_addr, txattr_addr + inline_size, VALID_XATTR_BLOCK_SIZE); set_page_dirty(xpage); f2fs_put_page(xpage, 1); |