From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/orangefs/super.c | 43 +++++++++++++++++++++++++++++++++----------
1 files changed, 33 insertions(+), 10 deletions(-)
diff --git a/kernel/fs/orangefs/super.c b/kernel/fs/orangefs/super.c
index 524fd95..2f2e430 100644
--- a/kernel/fs/orangefs/super.c
+++ b/kernel/fs/orangefs/super.c
@@ -10,6 +10,7 @@
#include "orangefs-bufmap.h"
#include <linux/parser.h>
+#include <linux/hashtable.h>
/* a cache for orangefs-inode objects (i.e. orangefs inode private data) */
static struct kmem_cache *orangefs_inode_cache;
@@ -124,10 +125,18 @@
return &orangefs_inode->vfs_inode;
}
-static void orangefs_i_callback(struct rcu_head *head)
+static void orangefs_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+ struct orangefs_cached_xattr *cx;
+ struct hlist_node *tmp;
+ int i;
+
+ hash_for_each_safe(orangefs_inode->xattr_cache, i, tmp, cx, node) {
+ hlist_del(&cx->node);
+ kfree(cx);
+ }
+
kmem_cache_free(orangefs_inode_cache, orangefs_inode);
}
@@ -138,8 +147,13 @@
gossip_debug(GOSSIP_SUPER_DEBUG,
"%s: deallocated %p destroying inode %pU\n",
__func__, orangefs_inode, get_khandle_from_ino(inode));
+}
- call_rcu(&inode->i_rcu, orangefs_i_callback);
+static int orangefs_write_inode(struct inode *inode,
+ struct writeback_control *wbc)
+{
+ gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_write_inode\n");
+ return orangefs_inode_setattr(inode);
}
/*
@@ -299,7 +313,9 @@
static const struct super_operations orangefs_s_ops = {
.alloc_inode = orangefs_alloc_inode,
+ .free_inode = orangefs_free_inode,
.destroy_inode = orangefs_destroy_inode,
+ .write_inode = orangefs_write_inode,
.drop_inode = generic_delete_inode,
.statfs = orangefs_statfs,
.remount_fs = orangefs_remount_fs,
@@ -397,15 +413,11 @@
struct orangefs_fs_mount_response *fs_mount,
void *data, int silent)
{
- int ret = -EINVAL;
- struct inode *root = NULL;
- struct dentry *root_dentry = NULL;
+ int ret;
+ struct inode *root;
+ struct dentry *root_dentry;
struct orangefs_object_kref root_object;
- /* alloc and init our private orangefs sb info */
- sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
- if (!ORANGEFS_SB(sb))
- return -ENOMEM;
ORANGEFS_SB(sb)->sb = sb;
ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle;
@@ -427,6 +439,10 @@
sb->s_blocksize = PAGE_SIZE;
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_maxbytes = MAX_LFS_FILESIZE;
+
+ ret = super_setup_bdi(sb);
+ if (ret)
+ return ret;
root_object.khandle = ORANGEFS_SB(sb)->root_khandle;
root_object.fs_id = ORANGEFS_SB(sb)->fs_id;
@@ -506,6 +522,13 @@
goto free_op;
}
+ /* alloc and init our private orangefs sb info */
+ sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
+ if (!ORANGEFS_SB(sb)) {
+ d = ERR_PTR(-ENOMEM);
+ goto free_op;
+ }
+
ret = orangefs_fill_sb(sb,
&new_op->downcall.resp.fs_mount, data,
flags & SB_SILENT ? 1 : 0);
--
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