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fs/9p: Properly update inode attributes on link
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With caching enabled, we need to make sure we don't
update inode->i_size via stat2inode because we could
have dirty data which is not yet written to the server

Signed-off-by: Aneesh Kumar K.V <[email protected]>
Signed-off-by: Venkateswararao Jujjuri <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
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kvaneesh authored and ericvh committed Mar 15, 2011
1 parent e0459f5 commit c06c066
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Showing 2 changed files with 4 additions and 10 deletions.
4 changes: 3 additions & 1 deletion fs/9p/vfs_inode.c
Original file line number Diff line number Diff line change
Expand Up @@ -1292,8 +1292,10 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
sprintf(name, "%d\n", oldfid->fid);
retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
__putname(name);
if (!retval)
if (!retval) {
v9fs_refresh_inode(oldfid, old_dentry->d_inode);
v9fs_invalidate_inode_attr(dir);
}
clunk_fid:
p9_client_clunk(oldfid);
return retval;
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10 changes: 1 addition & 9 deletions fs/9p/vfs_inode_dotl.c
Original file line number Diff line number Diff line change
Expand Up @@ -671,19 +671,11 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
/* Get the latest stat info from server. */
struct p9_fid *fid;
struct p9_stat_dotl *st;

fid = v9fs_fid_lookup(old_dentry);
if (IS_ERR(fid))
return PTR_ERR(fid);

st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
if (IS_ERR(st))
return PTR_ERR(st);

v9fs_stat2inode_dotl(st, old_dentry->d_inode);

kfree(st);
v9fs_refresh_inode_dotl(fid, old_dentry->d_inode);
}
ihold(old_dentry->d_inode);
d_instantiate(dentry, old_dentry->d_inode);
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