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affs: unobfuscate affs_fix_dcache()

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and add a comment on what it's doing

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-06-09 13:06:09 -04:00
parent 3084ee95f0
commit 12447c4039
1 changed files with 8 additions and 6 deletions
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14
fs/affs/amigaffs.c
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@ -122,15 +122,13 @@ affs_remove_hash(struct inode *dir, struct buffer_head *rem_bh)
} }
static void static void
affs_fix_dcache(struct dentry *dentry, u32 entry_ino) affs_fix_dcache(struct inode *inode, u32 entry_ino)
{ {
struct inode *inode = dentry->d_inode; struct dentry *dentry;
void *data = dentry->d_fsdata;
spin_lock(&inode->i_lock); spin_lock(&inode->i_lock);
list_for_each_entry(dentry, &inode->i_dentry, d_alias) { list_for_each_entry(dentry, &inode->i_dentry, d_alias) {
if (entry_ino == (u32)(long)dentry->d_fsdata) { if (entry_ino == (u32)(long)dentry->d_fsdata) {
dentry->d_fsdata = data; dentry->d_fsdata = (void *)inode->i_ino;
break; break;
} }
} }
@ -172,7 +170,11 @@ affs_remove_link(struct dentry *dentry)
} }
affs_lock_dir(dir); affs_lock_dir(dir);
affs_fix_dcache(dentry, link_ino); /*
* if there's a dentry for that block, make it
* refer to inode itself.
*/
affs_fix_dcache(inode, link_ino);
retval = affs_remove_hash(dir, link_bh); retval = affs_remove_hash(dir, link_bh);
if (retval) { if (retval) {
affs_unlock_dir(dir); affs_unlock_dir(dir);