github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-26 16:12:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ext4: introduce ITAIL helper

Browse Source 
Introduce ITAIL helper to get the bound of xattr in inode.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20250208063141.1539283-2-yebin@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ye Bin 2025-02-08 14:31:40 +08:00 committed by Theodore Ts'o
parent f6fc1584f5
commit 69f3a3039b
2 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
fs/ext4/xattr.c
View File

@ -649,7 +649,7 @@ ext4_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
return error;
raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
end = ITAIL(inode, raw_inode);
error = xattr_check_inode(inode, header, end);
if (error)
goto cleanup;
@ -793,7 +793,7 @@ ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
return error;
raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
end = ITAIL(inode, raw_inode);
error = xattr_check_inode(inode, header, end);
if (error)
goto cleanup;
@ -879,7 +879,7 @@ int ext4_get_inode_usage(struct inode *inode, qsize_t *usage)
goto out;
raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
end = ITAIL(inode, raw_inode);
ret = xattr_check_inode(inode, header, end);
if (ret)
goto out;
@ -2244,7 +2244,7 @@ int ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
header = IHDR(inode, raw_inode);
is->s.base = is->s.first = IFIRST(header);
is->s.here = is->s.first;
is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
is->s.end = ITAIL(inode, raw_inode);
if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) {
error = xattr_check_inode(inode, header, is->s.end);
if (error)
@ -2795,7 +2795,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
*/
base = IFIRST(header);
end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
end = ITAIL(inode, raw_inode);
min_offs = end - base;
total_ino = sizeof(struct ext4_xattr_ibody_header) + sizeof(u32);

3
fs/ext4/xattr.h
View File

@ -67,6 +67,9 @@ struct ext4_xattr_entry {
((void *)raw_inode + \
EXT4_GOOD_OLD_INODE_SIZE + \
EXT4_I(inode)->i_extra_isize))
#define ITAIL(inode, raw_inode) \
((void *)(raw_inode) + \
EXT4_SB((inode)->i_sb)->s_inode_size)
#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1))
/*