diff options
| author | Chao Yu <yuchao0@huawei.com> | 2017-09-04 18:58:03 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-12-06 16:40:30 +0100 |
| commit | 0c8abf13e9fc7fdd63f9a69eb51b83f8f69de29d (patch) | |
| tree | 6ed0170ef52769c2bb2d58fac53c61708c869237 /fs/f2fs | |
| parent | ffbcfc0711f58d9ccf637c974f8036c096a1640a (diff) | |
f2fs: introduce read_xattr_block
Commit ba38c27eb93e ("f2fs: enhance lookup xattr") introduces
lookup_all_xattrs duplicating from read_all_xattrs, which leaves
lots of similar codes in between them, so introduce new help
read_xattr_block to clean up redundant codes.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/xattr.c | 50 |
1 files changed, 24 insertions, 26 deletions
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 6e22683ab..daeb5e650 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -312,12 +312,31 @@ static int read_inline_xattr(struct inode *inode, struct page *ipage, return 0; } +static int read_xattr_block(struct inode *inode, void *txattr_addr) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + nid_t xnid = F2FS_I(inode)->i_xattr_nid; + unsigned int inline_size = inline_xattr_size(inode); + struct page *xpage; + void *xattr_addr; + + /* The inode already has an extended attribute block. */ + xpage = get_node_page(sbi, xnid); + if (IS_ERR(xpage)) + return PTR_ERR(xpage); + + xattr_addr = page_address(xpage); + memcpy(txattr_addr + inline_size, xattr_addr, VALID_XATTR_BLOCK_SIZE); + f2fs_put_page(xpage, 1); + + return 0; +} + static int lookup_all_xattrs(struct inode *inode, struct page *ipage, unsigned int index, unsigned int len, const char *name, struct f2fs_xattr_entry **xe, void **base_addr) { - struct f2fs_sb_info *sbi = F2FS_I_SB(inode); void *cur_addr, *txattr_addr, *last_addr = NULL; nid_t xnid = F2FS_I(inode)->i_xattr_nid; unsigned int size = xnid ? VALID_XATTR_BLOCK_SIZE : 0; @@ -346,19 +365,9 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage, /* read from xattr node block */ if (xnid) { - struct page *xpage; - void *xattr_addr; - - /* The inode already has an extended attribute block. */ - xpage = get_node_page(sbi, xnid); - if (IS_ERR(xpage)) { - err = PTR_ERR(xpage); + err = read_xattr_block(inode, txattr_addr); + if (err) goto out; - } - - xattr_addr = page_address(xpage); - memcpy(txattr_addr + inline_size, xattr_addr, size); - f2fs_put_page(xpage, 1); } if (last_addr) @@ -383,7 +392,6 @@ out: static int read_all_xattrs(struct inode *inode, struct page *ipage, void **base_addr) { - struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct f2fs_xattr_header *header; nid_t xnid = F2FS_I(inode)->i_xattr_nid; unsigned int size = VALID_XATTR_BLOCK_SIZE; @@ -405,19 +413,9 @@ static int read_all_xattrs(struct inode *inode, struct page *ipage, /* read from xattr node block */ if (xnid) { - struct page *xpage; - void *xattr_addr; - - /* The inode already has an extended attribute block. */ - xpage = get_node_page(sbi, xnid); - if (IS_ERR(xpage)) { - err = PTR_ERR(xpage); + err = read_xattr_block(inode, txattr_addr); + if (err) goto fail; - } - - xattr_addr = page_address(xpage); - memcpy(txattr_addr + inline_size, xattr_addr, size); - f2fs_put_page(xpage, 1); } header = XATTR_HDR(txattr_addr); |