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fs/9p: Add fid to inode in cached mode

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The fid attached to inode will be opened O_RDWR mode and is used
for dirty page writeback only.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Aneesh Kumar K.V
2011-02-28 17:03:57 +05:30
committed by Eric Van Hensbergen
parent 17311779ac
commit 3cf387d780
5 changed files with 83 additions and 3 deletions
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18
fs/9p/vfs_inode_dotl.c
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@@ -142,7 +142,7 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
mode_t mode;
struct v9fs_session_info *v9ses;
struct p9_fid *fid = NULL;
struct p9_fid *dfid, *ofid;
struct p9_fid *dfid, *ofid, *inode_fid;
struct file *filp;
struct p9_qid qid;
struct inode *inode;
@@ -218,7 +218,21 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
/* Now set the ACL based on the default value */
v9fs_set_create_acl(dentry, dacl, pacl);
if (v9ses->cache && !inode->i_private) {
/*
* clone a fid and add it to inode->i_private
* we do it during open time instead of
* page dirty time via write_begin/page_mkwrite
* because we want write after unlink usecase
* to work.
*/
inode_fid = v9fs_writeback_fid(dentry);
if (IS_ERR(inode_fid)) {
err = PTR_ERR(inode_fid);
goto error;
}
inode->i_private = (void *) inode_fid;
}
/* Since we are opening a file, assign the open fid to the file */
filp = lookup_instantiate_filp(nd, dentry, generic_file_open);
if (IS_ERR(filp)) {