diff options
Diffstat (limited to 'fs/ext4/inline.c')
| -rw-r--r-- | fs/ext4/inline.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index cff52ff6549d..a4fbe825694b 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -6,6 +6,7 @@ #include <linux/iomap.h> #include <linux/fiemap.h> +#include <linux/namei.h> #include <linux/iversion.h> #include <linux/sched/mm.h> @@ -35,6 +36,9 @@ static int get_max_inline_xattr_value_size(struct inode *inode, struct ext4_inode *raw_inode; int free, min_offs; + if (!EXT4_INODE_HAS_XATTR_SPACE(inode)) + return 0; + min_offs = EXT4_SB(inode->i_sb)->s_inode_size - EXT4_GOOD_OLD_INODE_SIZE - EXT4_I(inode)->i_extra_isize - @@ -1588,6 +1592,35 @@ out: return ret; } +void *ext4_read_inline_link(struct inode *inode) +{ + struct ext4_iloc iloc; + int ret, inline_size; + void *link; + + ret = ext4_get_inode_loc(inode, &iloc); + if (ret) + return ERR_PTR(ret); + + ret = -ENOMEM; + inline_size = ext4_get_inline_size(inode); + link = kmalloc(inline_size + 1, GFP_NOFS); + if (!link) + goto out; + + ret = ext4_read_inline_data(inode, link, inline_size, &iloc); + if (ret < 0) { + kfree(link); + goto out; + } + nd_terminate_link(link, inode->i_size, ret); +out: + if (ret < 0) + link = ERR_PTR(ret); + brelse(iloc.bh); + return link; +} + struct buffer_head *ext4_get_first_inline_block(struct inode *inode, struct ext4_dir_entry_2 **parent_de, int *retval) |