diff options
Diffstat (limited to 'fs/f2fs/inline.c')
| -rw-r--r-- | fs/f2fs/inline.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 3b18e23319c3..bda7126466c0 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -12,6 +12,7 @@ #include <linux/f2fs_fs.h> #include "f2fs.h" +#include "node.h" bool f2fs_may_inline_data(struct inode *inode) { @@ -570,3 +571,38 @@ int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, f2fs_put_page(ipage, 1); return 0; } + +int f2fs_inline_data_fiemap(struct inode *inode, + struct fiemap_extent_info *fieinfo, __u64 start, __u64 len) +{ + __u64 byteaddr, ilen; + __u32 flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED | + FIEMAP_EXTENT_LAST; + struct node_info ni; + struct page *ipage; + int err = 0; + + ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino); + if (IS_ERR(ipage)) + return PTR_ERR(ipage); + + if (!f2fs_has_inline_data(inode)) { + err = -EAGAIN; + goto out; + } + + ilen = min_t(size_t, MAX_INLINE_DATA, i_size_read(inode)); + if (start >= ilen) + goto out; + if (start + len < ilen) + ilen = start + len; + ilen -= start; + + get_node_info(F2FS_I_SB(inode), inode->i_ino, &ni); + byteaddr = (__u64)ni.blk_addr << inode->i_sb->s_blocksize_bits; + byteaddr += (char *)inline_data_addr(ipage) - (char *)F2FS_INODE(ipage); + err = fiemap_fill_next_extent(fieinfo, start, byteaddr, ilen, flags); +out: + f2fs_put_page(ipage, 1); + return err; +} |