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Date: Fri, 27 Dec 2013 17:11:45 +0800
From: Fabian Frederick <fabf@...net.be>
To: linux-kernel@...r.kernel.org
Cc: hch@...radead.org, linux-fsdevel@...r.kernel.org,
akpm@...ux-foundation.org, rdunlap@...radead.org
Subject: [PATCH 1/1] reiserfs:Adding tmpfile support (v2)
New function reiserfs_tmpfile:
-Duplicate reiserfs_create
-Remove dquot_initialize (cf ext2/tmpfile)
-Remove add_entry code
-Add d_tmpfile generic call
-Add add_save_link (cf ext3/orphan_add)
reiserfs_link function:
-Add remove_save_link (cf ext3/orphan_del)
Saved link is removed in normal use (close)
cf reiserfs_evict_inode (reiserfsck is ok)
Note : This patch still requires reiserfs_link testing.
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
fs/reiserfs/namei.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index dc5236f..60339d4 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -637,6 +637,66 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, umode_t mod
return retval;
}
+
+/* tmpfile function based on reiserfs_create without filename entry
+*/
+
+static int reiserfs_tmpfile(struct inode *dir, struct dentry *dentry,
+ umode_t mode)
+{
+ int retval;
+ struct inode *inode;
+ int jbegin_count =
+ JOURNAL_PER_BALANCE_CNT * 2 +
+ 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
+ REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
+ struct reiserfs_transaction_handle th;
+ struct reiserfs_security_handle security;
+
+ inode = new_inode(dir->i_sb);
+ if (!inode)
+ return -ENOMEM;
+
+ new_inode_init(inode, dir, mode);
+
+ jbegin_count += reiserfs_cache_default_acl(dir);
+ retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
+ if (retval < 0) {
+ drop_new_inode(inode);
+ return retval;
+ }
+ jbegin_count += retval;
+ reiserfs_write_lock(dir->i_sb);
+
+ retval = journal_begin(&th, dir->i_sb, jbegin_count);
+ if (retval) {
+ drop_new_inode(inode);
+ goto out_failed;
+ }
+
+ retval =
+ reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry,
+ inode, &security);
+ if (retval)
+ goto out_failed;
+
+ inode->i_op = &reiserfs_file_inode_operations;
+ inode->i_fop = &reiserfs_file_operations;
+ inode->i_mapping->a_ops = &reiserfs_address_space_operations;
+
+ reiserfs_update_inode_transaction(inode);
+ reiserfs_update_inode_transaction(dir);
+
+ unlock_new_inode(inode);
+ d_tmpfile(dentry, inode);
+ add_save_link(&th, inode, 0);
+ retval = journal_end(&th, dir->i_sb, jbegin_count);
+
+ out_failed:
+ reiserfs_write_unlock(dir->i_sb);
+ return retval;
+}
+
static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
dev_t rdev)
{
@@ -1146,6 +1206,8 @@ static int reiserfs_link(struct dentry *old_dentry, struct inode *dir,
reiserfs_update_sd(&th, inode);
ihold(inode);
+ if (inode->i_nlink == 1)
+ remove_save_link(inode, 0);
d_instantiate(dentry, inode);
retval = journal_end(&th, dir->i_sb, jbegin_count);
reiserfs_write_unlock(dir->i_sb);
@@ -1522,6 +1584,7 @@ const struct inode_operations reiserfs_dir_inode_operations = {
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
.get_acl = reiserfs_get_acl,
+ .tmpfile = reiserfs_tmpfile,
};
/*
--
1.8.1.4
--
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