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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-02-28 17:04:05 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2011-03-15 09:57:40 -0500 |
| commit | b271ec47bc11deacb6a0373ee29965ab628e74b2 (patch) | |
| tree | f7f1e85136b98b2da6fcc53b3a04e23a4658285d /fs/9p/vfs_inode.c | |
| parent | edd73cf544849c10e0fbc294ca2171f6c28b4093 (diff) | |
| download | linux-b271ec47bc11deacb6a0373ee29965ab628e74b2.tar.gz linux-b271ec47bc11deacb6a0373ee29965ab628e74b2.tar.bz2 linux-b271ec47bc11deacb6a0373ee29965ab628e74b2.zip | |
fs/9p: Update link count correctly on different file system operations
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>
Diffstat (limited to 'fs/9p/vfs_inode.c')
| -rw-r--r-- | fs/9p/vfs_inode.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index fdc086d07447..334ad12a7bbe 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -510,8 +510,17 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir) return PTR_ERR(v9fid); retval = p9_client_remove(v9fid); - if (!retval) - drop_nlink(file_inode); + if (!retval) { + /* + * directories on unlink should have zero + * link count + */ + if (rmdir) { + clear_nlink(file_inode); + drop_nlink(dir); + } else + drop_nlink(file_inode); + } return retval; } @@ -697,7 +706,8 @@ static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) if (IS_ERR(fid)) { err = PTR_ERR(fid); fid = NULL; - } + } else + inc_nlink(dir); if (fid) p9_client_clunk(fid); @@ -809,6 +819,7 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { struct inode *old_inode; + struct inode *new_inode; struct v9fs_session_info *v9ses; struct p9_fid *oldfid; struct p9_fid *olddirfid; @@ -819,6 +830,7 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, P9_DPRINTK(P9_DEBUG_VFS, "\n"); retval = 0; old_inode = old_dentry->d_inode; + new_inode = new_dentry->d_inode; v9ses = v9fs_inode2v9ses(old_inode); oldfid = v9fs_fid_lookup(old_dentry); if (IS_ERR(oldfid)) @@ -859,9 +871,21 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, retval = p9_client_wstat(oldfid, &wstat); clunk_newdir: - if (!retval) + if (!retval) { + if (new_inode) { + if (S_ISDIR(new_inode->i_mode)) + clear_nlink(new_inode); + else + drop_nlink(new_inode); + } + if (S_ISDIR(old_inode->i_mode)) { + if (!new_inode) + inc_nlink(new_dir); + drop_nlink(old_dir); + } /* successful rename */ d_move(old_dentry, new_dentry); + } up_write(&v9ses->rename_sem); p9_client_clunk(newdirfid); |