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qib_fs: switch to simple_recursive_removal()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-12-27 16:59:56 -05:00
parent a38fd87484
commit e41d237818
1 changed files with 5 additions and 63 deletions
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68
drivers/infiniband/hw/qib/qib_fs.c
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@ -427,79 +427,21 @@ bail:
return ret; return ret;
} }
static int remove_file(struct dentry *parent, char *name)
{
struct dentry *tmp;
int ret;
tmp = lookup_one_len(name, parent, strlen(name));
if (IS_ERR(tmp)) {
ret = PTR_ERR(tmp);
goto bail;
}
spin_lock(&tmp->d_lock);
if (simple_positive(tmp)) {
__d_drop(tmp);
spin_unlock(&tmp->d_lock);
simple_unlink(d_inode(parent), tmp);
} else {
spin_unlock(&tmp->d_lock);
}
dput(tmp);
ret = 0;
bail:
/*
* We don't expect clients to care about the return value, but
* it's there if they need it.
*/
return ret;
}
static int remove_device_files(struct super_block *sb, static int remove_device_files(struct super_block *sb,
struct qib_devdata *dd) struct qib_devdata *dd)
{ {
struct dentry *dir, *root; struct dentry *dir;
char unit[10]; char unit[10];
int ret, i;
root = dget(sb->s_root);
inode_lock(d_inode(root));
snprintf(unit, sizeof(unit), "%u", dd->unit); snprintf(unit, sizeof(unit), "%u", dd->unit);
dir = lookup_one_len(unit, root, strlen(unit)); dir = lookup_one_len_unlocked(unit, sb->s_root, strlen(unit));
if (IS_ERR(dir)) { if (IS_ERR(dir)) {
ret = PTR_ERR(dir);
pr_err("Lookup of %s failed\n", unit); pr_err("Lookup of %s failed\n", unit);
goto bail; return PTR_ERR(dir);
} }
simple_recursive_removal(dir, NULL);
inode_lock(d_inode(dir)); return 0;
remove_file(dir, "counters");
remove_file(dir, "counter_names");
remove_file(dir, "portcounter_names");
for (i = 0; i < dd->num_pports; i++) {
char fname[24];
sprintf(fname, "port%dcounters", i + 1);
remove_file(dir, fname);
if (dd->flags & QIB_HAS_QSFP) {
sprintf(fname, "qsfp%d", i + 1);
remove_file(dir, fname);
}
}
remove_file(dir, "flash");
inode_unlock(d_inode(dir));
ret = simple_rmdir(d_inode(root), dir);
d_drop(dir);
dput(dir);
bail:
inode_unlock(d_inode(root));
dput(root);
return ret;
} }
/* /*