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fs/9p: We should not allocate a new inode when creating hardlines. 

Don't do new_inode_from fid in case of hardlink creation. This ensures
that link count for hardlink files get updated properly. Earlier link count
was not updated on removing a hardlink with cache mode enabled.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Aneesh Kumar K.V 2012-01-05 10:42:17 -06:00 committed by Eric Van Hensbergen
parent df345c674b
commit b605479306
1 changed files with 24 additions and 19 deletions
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43
fs/9p/vfs_inode.c
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@ -680,26 +680,31 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
goto error;
}
/* now walk from the parent so we can get unopened fid */
fid = p9_client_walk(dfid, 1, &name, 1);
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
fid = NULL;
goto error;
if (!(perm & P9_DMLINK)) {
/* now walk from the parent so we can get unopened fid */
fid = p9_client_walk(dfid, 1, &name, 1);
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
p9_debug(P9_DEBUG_VFS,
"p9_client_walk failed %d\n", err);
fid = NULL;
goto error;
}
/*
* instantiate inode and assign the unopened fid to the dentry
*/
inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
p9_debug(P9_DEBUG_VFS,
"inode creation failed %d\n", err);
goto error;
}
err = v9fs_fid_add(dentry, fid);
if (err < 0)
goto error;
d_instantiate(dentry, inode);
}
/* instantiate inode and assign the unopened fid to the dentry */
inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", err);
goto error;
}
err = v9fs_fid_add(dentry, fid);
if (err < 0)
goto error;
d_instantiate(dentry, inode);
return ofid;
error:
if (ofid)